Ashirvad Underground drainage system Technical Manual
Below you will find brief information for Underground drainage system. The product has a wide range of sizes and types of pipes, fittings and accessories. It is designed to meet the needs of modern building and infrastructure projects. System is made of PVC and designed to be leak proof with long service life. The technical manual provides information on installation, handling and storage of the system.
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UNDERGROUND
DRAINAGE SYSTEM
SMART AND EFFICIENT DRAINAGE
TECHNICAL MANUAL
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 1
Smart and efficient drainage system
Ashirvad underground system is a complete solution for drainage and sewerage application.
Being 100% watertight, it is free from ingress and seepage of water and hence considered to be most hygienic. Unlike conventional drainage products, it is free from pollution of underground water, soil or ill effects on building foundations.
The system has the following benefits:
Ease of installation
Smooth internal finish
Dependable leak proof joints
Wide range of products
Commercially astute
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 3
Index
01
About Ashirvad
Certifications
Global Partners - Aliaxis S.A./N.V.
10 Assurances
02
About uPVC
About Foam Core
03
Why Ashirvad Underground Drainage System?
Why only Pushfit?
Technical Specifications
Ring Stiffness
04
Quality Control Procedures at Ashirvad
Inspection Chambers
Manholes
Speciality Fittings
Surface Drainage
Applications of Underground Drainage System
Handling and Storage
05
Installation Guide Pushfit
Trench Excavation
Underground Fittings - Technical Details
Inspection Chambers - Technical Details
Inspection Chambers and Manholes - Technical Details
Ashirvad Underground Drainage System Limited Warranty
19
21
29
31
32
33
36
39
40
42
43
44
46
49
5 1
23
24
25
28
09
1 0
1 1
16
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 5
Water - In all its forms, a precious gift to life around, ever flowing, never stopping, always forward bound.
From the sky, from the rivers, from the lakes around
Bringing joy, bringing cheer abundant & profound
Water, water everywhere, happiness abound
“Khushiyon ke rang - paani ke sang” be water happy
TM
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 7
About Ashirvad
Ashirvad Pipes has been relentless in its commitment to quality and service since 1975. The product base has been enhanced through the years so as to suit the customer’s requirements better.
With its base in Bengaluru, Ashirvad
Pipes is an ISO 9001-2008 certified company with a constant endeavour towards achieving the highest level of customer satisfaction.
Ashirvad has partnered with Aliaxis S.A. /N.V., a € 2.5 billion (~ INR 20,000 crores) Belgium conglomerate and a global leader in plastic fluid handling systems.
Ashirvad Pipes today:
• Manufacturing capacity in excess of 1,08,000 MT per annum
• Total factory area of 40 acres
• 325 sales & marketing staff
• 3,000 workforce
• 15 warehouses across the Country
• 1,800 distributors
• 16,000 dealers
• Exports to over 30 countries
Ashirvad Pipes today is the pioneer, largest manufacturer and exporter of Column pipes in
India. Ashirvad is also a licensee of The Lubrizol
Corporation, a Berkshire Hathaway Company, to manufacture and market CPVC plumbing systems in India. Ashirvad foresees to become a “one stop shop” for all plumbing and sanitary products needed by the Indian markets.
In 2007, Ashirvad won the
National Award
for “OUTSTANDING
ENTREPRENEURSHIP IN MEDIUM
ENTERPRISES”
The award was presented by the
Prime Minister of India.
WCRC LEADERS SUMMIT - 2014
"Ashirvad Pipes"
One of the 100
"FASTEST GROWING MARKETING
BRANDS IN ASIA"
(Evaluated and selected by KPMG)
The Global Audit Firm
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 9
Certifications Global Partners - Aliaxis S.A./N.V.
The Aliaxis group is a leading global manufacturer and distributor primarily of plastic fluid handling systems used in residential, commercial and industrial buildings.
Head quartered in Brussels, Belgium, Aliaxis is present in over 40 countries, has more than
100 manufacturing and commercial entities and employs over 15,700 people.
Aliaxis leverages local and global knowledge of the industry as well as regulations and building habits to provide consistently excellent customer service through distribution partners to builders, infrastructure contractors and others. The group is in the Indian plumbing and sanitary market through a partnership with Ashirvad Pipes.
100 manufacturing sites
40 countries
15,700 people
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 11
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 13
Ashirvad production plant
Ashirvad workforce
Raw material handling
Injection Moulding Facility
Injection moulding Ring stiffness testing
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 15
10
ASSURANCES
Ashirvad’s stringent quality checks ensure premium products and maximum customer satisfaction
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 17
UNDERGROUND
DRAINAGE SYSTEM
Ashirvad’s underground drainage system is intended to carry soil, waste, rainwater or industrial effluent system from building to roadside sewers or drains and from there to waste treatment plant or point of discharge.
About uPVC
uPVC is a versatile plastic material that has been used for plumbing and drainage systems for many decades.
Ease of processing, smooth interiors as well as rigid pipes and fittings that can be manufactured with uPVC have been instrumental in its wide spread usage for such applications. Below are common properties of uPVC that are given for reference only.
Physical Properties
Density [g/cm
3
]
Thermal conductivity [w/(m.k)]
Yield strength [MPa]
Young's modulus [psi]
1.3 - 1.45
0.14 - 0.28
31 - 60
4,90,000
Flexural strength (yield) [psi] 10,500
Compression strength [psi] 9,500
Coefficient of thermal expansion (linear) [mm (mm"c)] 5 x 10
-5
Vicat B [°c]
Resistivity [Qm]
Surface resistivity [Q]
65 - 100
10
16
10
1 3
- 10
14
Fire Resistant
Ashirvad underground drainage systems are self-extinguishing and do not support combustion. uPVC must be forced to burn due to its high
Oxygen Index (LOI) of 45. LOI is the percentage of oxygen needed in an atmosphere to support combustion.
Material
Cotton
Polypropylene (PP)
Polyethylene (PE)
Wood
CPVC
Atmospheric content of OXYGEN
PVC
20
60
21
45
18
18
LOI
16 - 17
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 19
About Foam Core
Defining underground drainage
Underground drainage system comprises of pipes, fittings and accessories used to conduct household sewage, rainwater or Industrial effluent. Most commonly seen application is in between houses or buildings to municipal sewers. It is a non pressure application system and as such can be comprised from different materials such as PVC HDPE, clay concrete or fibre glass. The Ashirvad product is made of PVC for the following reasons:
• Strong and light weight
Outer Layer
(PVC)
• Fire resistant
• Chemical stability
• Leak proof joints
• Maximum flow rate
Foamed
PVC
• Good insulator
• Biocompatibility
• Resistance to chemical stress cracking
Underground drainage system pipes can be obtained in various constructions such as solid wall and structured wall. Ashirvad has chosen to supply pipes produced in 3 layers with the middle layer comprised of PVC foam to enhance modulus and reduce weight.
Inner Layer
(PVC)
Advantages of Foam Core
Foam core pipes are basically multi- layer pipes having outer and inner layers of conventional PVC and middle layer of foamed PVC. Outer and inner layers are designed to take the load as well as provide chemical resistance while middle layer of foamed PVC gives rigidity and maintains the shape of the pipe under load. Due to its ability of absorbing the load, foamcore pipes are most suitable for underground drainage systems, where soil exerts a lot of pressure on pipe surfaces.
• Light weight and strong
• Dampening of vibrations and noise level
• High impact strength
• Wide temperature range
• Thermal insulation
• Water ingress prevention (resulting from filling of hollow space)
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 21
Underground Pipe Production
Why Ashirvad Underground
Drainage System?
Ashirvad offers an industry leading range of underground and surface drainage systems. These systems offer unparalleled installation options with high quality finish, superior dimensional accuracy and stability and are suitable for all types of commercial and domestic installations.
These pipes are extruded on state-of-the-art extruders and are socketed on inline belling machines. The fittings are manufactured in collapsible core moulds to ensure straight sharp finish of the grooves for higher dimensional accuracy of the product which finally ensures the highest degree of dimensional accuracy and product strength.
Ashirvad underground drainage systems, therefore, offer unrivalled strength and product finish that provides a leak proof, maintenance free and long lasting solution to the customer. All this is backed by extensive technical research to support all aspects of design and installation.
Ashirvad underground drainage pipes are available in 110 mm to 315 mm with different stiffness classes mainly categorised as SN2, SN4 and SN8.
• 110 mm with stiffness class SN4 and SN8
• 160 mm, 200 mm, 250 mm and 315 mm with stiffness class SN2, SN4 and SN8
FEATURES
AND BENEFITS
OF ASHIRVAD
UNDERGROUND
DRAINAGE SYSTEM
• Light weight and strong
• Wide range and compatibility
• Easy to install
• Maximum flow rate
• Longer service life
• Chemical and corrosion resistance
• Non toxic and non conductor
• Non flammable and environmental friendliness
• Noise free
Wide range of pipes and fittings
Sizes available for Pipes and fittings – 110, 160, 200, 250 and 315 mm.
Under technical collaboration from REDI*
Ashirvad under technical collaboration from REDI made it possible to have wide range of products in underground drainage range.
Special fittings from REDI*
Special fittings such as non return valves, easy clips, mechanical saddles, swivel and surface drainage are imported from REDI.
Fully analyzed raw materials
The raw materials used for manufacturing the products are fully analyzed and procured with utmost care to deliver high quality products to the customers.
Best manufacturing standards
The pipes are extruded on state-of-the-art extruders and are socketed on online belling machines. The fittings are manufactured in collapsible core moulds to ensure straight sharp finish of the grooves for higher dimensional accuracy of the product which finally ensures the highest degree of dimensional accuracy and product strength.
Wide distribution network
Ashirvad has a wide distribution network throughout the country which makes it possible to find our products in local shops too.
Rodent proof
Smooth surfaces and the rigidity of PVC are hindrants for rodents from damaging the system.
*REDI (Italy) is active since 1960 and are leaders in the management of waste water system as well as ventilation in Europe.
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 23
Why only Pushfit?
New moulding technology has made it feasible to produce bimoulded rubber rings that are more dependable and do not slip out of the groove during installation. This requires no threading or solvent cementing.
The spigot end is held firmly in the socket with the help of the Brown
Seal™. It ensures a leak proof joint and can withstand high pressure flow.
This system is made in high tech, new generation machines and offers unrivalled performance, strength and finish.
The advanced Brown Seal™ enables the joints to not only withstand high pressure and provide leak proof joints but also accommodates the thermal expansion and contraction of plastic.
Since the joint is not fixed by solvent cement, it can be reopened after installation to realign, change or adjust the pipe/fitting.
THERMAL EXPANSION uPVC has a coefficient of expansion of approximately 0.06mm/m/°C. Consequently a 2m length of soil or waste pipe will expand by 2.4 mm for a 20°C rise in temperature.
This expansion is taken into consideration in the design of systems and components, and must be accommodated when installing. It is important that this movement be allowed by including an expansion gap at ring seal joints.
The spigot should be pushed fully into the ring seal socket, marked at the socket face, and then withdrawn by 10 mm. A subsequent check should be made to ensure that the expansion gap is not lost during further installation work.
Quick, easy and convenient installation
Smooth inner finish
Cost effective
Corrosion and abrasion resistance
Tough and reliable
Technical Specifications
Ashirvad Underground drainage system pipes are manufactured as per IS 16098 (Part 1) :
2013 standard and fittings are manufactured as per EN 1401-1:2009 (SDR 41) standard in sizes ranging from 110, 160, 200, 250 and 315 mm.
This system comes with a pre-fitted rubber
( Brown Seal™) in the groove that ensures a leak proof joint. The system is joined by simply pushing the spigot end into the socket end.
C A
L1
15 o
-45 o
H
Typical Groove design for elastomeric ring seal sockets
110
160
200
250
315
Diameter and lengths of elastomeric ring seal sockets and spigots
Socket Spigot Nominal
Outside
Diameter, dn
Mean Outside
Diameter, dn
Min Max ds, min A min C max L1, min H
110.0
160.0
200.0
250.0
315.0
110.3
160.4
200.5
250.5
315.6
110.4
160.5
200.6
250.8
316.0
32
42
50
50
62
26
32
40
70
70
60
81
99
125
132
9
9
12
6
7
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 25
Technical Specifications
Dimension of pipes as per IS 16098 – Part 1 (2013)
Outside diameter and thickness of inside layer
Nominal Outside
Diameter, dn
Minimum Wall Thickness of inner layer (e4, Min)
110
160
200
250
315
0.4
0.5
0.6
0.7
0.8
Dimensions in millimetres
Effective length of pipe
Effective length (l)
Socketed pipe
Effective length (l)
Plain ended pipe
Pipe Availability
Description
Type
Pipe Diameter
110 mm
160 mm
SN2
Availability
Pushfit pipe Not covered in IS
Pushfit pipe
200 mm
250 mm
315 mm
Pushfit pipe
Pushfit pipe
Pushfit pipe
SN4
Availability
SN8
Availability
Notes
• Pipes available with socket on single side.
• Pipes available with socket on double side.
• Pipes available without sockets (plain ended).
Dimension of fittings as per EN 1401-1 : 2009 (SDR 41) standards
Wall thickness of fittings
Nominal
Outside
Diameter dn
Spigot e min
110 3.2
160
200
250
315
Dimensions in millimetres
4.0
4.9
6.2
7.7
SN 4 (SDR 41) e max
3.8
4.6
5.6
7.1
8.7
e2 min
2.9
3.6
4.4
5.5
6.9
Socket e3 min
2.4
3.0
3.7
4.7
5.8
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 27
Ring Stiffness
Principle
The ring stiffness of a pipe indicates its ability to resist soil loads, external hydrostatic pressure, negative internal pressures and traffic loads. Nominal ring stiffness can be determined by laboratory testing and is expressed as kN/m
2
. Reference IS 16098 (Part 1) : 2013. All diameters of Ashirvad foamcore pipes are manufactured with a constant minimum stiffness as either designated as SN2, SN4 and SN8 respectively in accordance with the standards.
Test procedure
LOAD (N/m) dv
D
Ix Ix Ix – Moment of inertia dv – Displacement at
constant speed
D – Diameter of pipe
The ring stiffness is determined by measuring the force and the deflection while deflecting the pipe at a constant rate. A length of pipe supported horizontally is compressed vertically between two parallel flat plates moved at a constant speed, which is dependent upon the diameter of the pipe. A plot of force versus deflection is generated. The ring stiffness is calculated as a function of the force necessary to produce a deflection of
0.03D diametrically across the pipe. The pipe is said to have passed the test if
• There is no cracking or crazing of the inside wall or liner.
• There is no wall delamination.
• The test piece has not ruptured and there are no mechanical failures.
• There is no change in shape of cross section of the pipe (buckling).
Table 1 – Ring Stiffness of Pipes
Stiffness Class
SN2
SN4
SN8
Ring Stiffness (kN/m
2
)
≥ 2
≥ 4
≥ 8
Quality Control Procedures at Ashirvad
The pipes and fittings manufactured at Ashirvad, follow a stringent quality control process before being rolled out into the market, in order to supply a defect free system to its users.
These processes follow the highest specifications of BIS (India) and EN
(Europe).
FOR PIPES
Dimensional Check
To ensure that all pipe dimensions, particularly wall thickness and outer diameter (roundness), conform to the appropriate standards.
Longitudinal Reversion
A pipe of specified length is placed in an air oven at a specified temperature for a specified time. A marked length of this portion of pipe is measure before and after heating. The reversion is calculated as a percentage of the change in length in relation to the initial length.
Ring Stiffness test
The stiffness of a pipe indicates the ability of pipe to resist the external soil, hydrostatic and traffic loads together with negative internal pressure.
Ring Flexibility test
Ring flexibility is determined by measuring the force and deflection while deflecting a ring section from the pipe diameter at a constant speed until a deflection of at least 30 percent.
OTHER TESTS
• Color
• Vicat softening temperature
• Resistance to dichloromethane
• Creep ratio
• Resistance to combined temperature cycling and external loading
• Tightness of elastomeric sealing ring joints at 2° deflection
• Stress relief test
FOR FITTINGS
Dimensions Check
To ensure that fittings have correct dimensions, particularly wall thickness, socket diameters and socket depth.
Drop Impact Test
Fittings are dropped at 0 o
C from 1 meter height on the floor and observed for any cracks or failures.
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 29
Inspection chamber with riser, frame and lid
Inspection Chambers
Inspection chambers are the devices which allow access to the sewage for cleaning. Inspection chambers are used when there are too many long sewage segments, at the converging inlets, change of direction, for new connections, to disconnect public and private sewer lines and at places of sewage fall.
Benefits of Ashirvad inspection chambers
• High flow capacity
• High hydraulic tightness
• Self cleaning
• Very low cleaning frequency
• Long lasting system
• Quick and easy installation
• Lower costs
• Easy to add additional connections
Concrete Platform
Gasket
Riser
Inspection Chambers
The inspection chambers can be attached to risers / raising pieces through simple dry-jointing to provide instant watertight joints. These have strengthening ribs and webbing too. Risers are used to make up the required overall height between chamber base and cover as needed.
Ashirvad provides these in diameters of 315 mm and 450 mm. The 450 mm risers have the facility to connect a 110 mm pipe at specific heights.
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 31
Manholes
Ashirvad manholes are made of 100% virgin UV stabilized polyethylene
(PE) material and are intended for use in underground drainage and sewer systems. Innovative industrial strength design based on almost 20 years of German / European experience incorporates carefully designed ribs to provide extra strength to the product and at the same time act as an uplift prevention system against ground water.
Ashirvad manholes are rotomoulded and are made to BS EN 13598-2 :
2009 standard. All manholes have 5 inlets and a larger outlet. An in built slope is provided in the manhole itself.
Benefits of Ashirvad manholes
• Fast, easy, flexible and safe installation
• Ultra durable (UV resistant PE material used)
• Corrosion resistant
• Maintenance free
• Reduced operating costs
• High quality and to EN standards
• Comes with top covers that have high load bearing capacity
• Tried and tested for over 20 years
• Environmentally friendly
Range of manholes available
Diameter
DN
(mm)
500
Height
Range
(mm)
Inlet
DN i
(mm)
350 - 1000 110/160
Outlet
DN o
(mm)
110/160
Cover
DN c
(mm)
500
Personal
Entry
No
600
800*
350 - 1000
1050 - 1750
110/160
110/160
110/160
110/160
600
600
No
Yes
110/160/200 110/160/200 600 Yes
1000** 1100 - 6000
160/200/250 160/200/250 600 Yes
*Steps are available on demand
**DN1000 manhole available with additional base configurations for inlet/outlet of 315/400/500
Speciality Fittings
Mechanical connections
Ashirvad introduces high quality mechanical connections that can be used to join underground drainage pipes to municipal sewers. These products can be used to join to sewers made out of PE/PP/PVC - solid wall, corrugated, clay, concrete, GRP or cast iron (thickness 5 mm to
100 mm, diameter 300 mm to 1200 mm).
Easy clip (160 mm and 200 mm dia)
Easy clip is used for the creation of sewer line connections using a watertight coupling device with a mechanical anchoring system. The body of the clip is made from PVC and seals are made from EPDM.
Easy clip fit for purpose saddles have been successfully installed for conveying surface waters from highway bridges and to connect private underground drainage systems to the main sewers.
Installation steps
Identify the point at which to perforate the pipeline and drill the hole perpendicular to the axis of the main pipe.
Use a suitable tool to smooth the edge of the hole as well as lubricate the seal.
Also ensure a good fit of the circular interface.
Insert the Saddles and tighten the ring nut. By turning the orange ring nut, the internal body moves upwards. The slightly conical shape of the body’s base compresses the seal, thus ensuring that the hole drilled in the pipeline is properly sealed.
Advantages of installing easy clip
• Short excavation time
• Soil re-compaction time
• No alteration of bedding
• No risk of rupture
• No digging beneath the pipeline
• No risk of interference with other utilities
• Installation without the use of sealants
• Speed of installation
• Flexible solutions
• Ease of installation
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 33
Non return valves
Non return valves are simple and effective devices for reducing the risk of flood damage caused by surface water flowback through the underground drainage system. Injection moulded non return valves made of uPVC designed for connections to piping systems conform to European EN 1329 and EN 1401 standards.
The main causes of back flow are
• Overall under-sizing of the public sewage.
• High peak of flow (example in case of intense rainfalls).
• Growing urbanization areas means greater sewage volume to be evacuated.
• Malfunctioning or blockages downstream in the network.
Main functioning components and operation
Emergency closing handle
NON PROTECTED
Closing
Flap
Removable
Cover
Back flow event: without non return valve
PROTECTED
Non return valve
Back flow event: with non return valve
Installation
Installation of NRV is within an access point between the facility to be protected and main sewer. Any flowback will automatically shut the valve.
This product can be obtained in sizes from
110 mm to 315 mm from Ashirvad.
Swivel
Swivel joint for the compensation of settling side when used with inspection chambers. Special kneecap compensation whose seat is obtained by the coupling of 2 hemispheres. The product comes from Redi mounted, pre-lubricated and ready to use. The end can absorb inclinations of the pipe up to +/- 10°.
Installation: Suitable for systems with O-ring seal. Always chamfer cut pipe and lubricate all plain ended spigots for perfect push-fit.
Installation Procedure
1
2
3
4
DN 160 mm
• Pre lubricated and ready to install
• Rotation up to 10° to ease house connections and balance ground settlement
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 35
Surface Drainage
Surface drainage efficiently removes water from pedestrian areas and domestic driveways. The unobtrusive design blends perfectly with surrounding materials and is ideal for garage fronts, private driveways and patios.
Maximum Flexibility
The system's design allows maximum flexibility in length of channels, cornering, and volume of water. You can connect the surface water drainage system to 110 mm storm water pipes.
Tough and Durable
All components are tough, durable, single-piece moulding. Strong bicycleproof grates are available in plastic or aluminium. With proper installation, the system is designed to handle reasonable domestic vehicle loads as well.
Application Fields
Pedestrian
Areas
Private
Buildings
Commercial
Centers
Swimming
Pools
Public
Buildings
Industries Garages Parking
Lots
PP Drainage Channels 130 x 1000 mm
70 Internal height
Grill profile
Grill load and classes
130
Application Fields
Trade center Industrial applications
Pedestrian area
Pedestrian area
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 37
SMART WATER
MANAGEMENT
With technical tie ups from across the globe, Ashirvad strives to bring the latest technology and products into the Indian plumbing market, with more and more satisfied customers each day.
Applications of Underground
Drainage System
Ashirvad underground drainage and sewerage system has been designed with a view to modern man's inclination towards health, hygiene and his aversion to filth and pollutants. Due to unpleasant nature of human waste, a drainage system should be “out of sight and out of mind”. Most of the drainage systems are actually hidden from sight.
Ashirvad underground system can also be used for rainwater collection and disposal, including rainwater harvesting. In short, the system provides complete solution for underground drainage and sewerage applications.
Good practice guide for underground drainage systems
• Pipes to be laid at such a gradient as to ensure a self-cleansing velocity.
• Pipes to be of sufficient size to cope effectively with the maximum load to be carried.
• Efficient means of ventilation to be provided and maintained.
• Adequate means of access to be provided.
• Length of branch drains to be kept to a minimum and all junctions to be made in the direction of flow.
• Pipes to have watertight joints.
• Every part of the drainage system to be adequately supported.
• So far as circumstances will permit, drains should not pass under buildings.
• Drains to be laid as far as possible in straight lines between points where access is provided.
• Drains not to be laid in close proximity to trees owing to the possibility of damage being caused by roots.
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 39
Handling and Storage
Proper Handling
Please check and inspect the pipes on receipt. The pipes should be checked for any forms of transport damage due to shift in loads or improper handling/treatment. Visually examine the ends of pipes for any cracks or damage.
The pipes should be handled with care. The tendency to throw or drop the pipes to the floor should be avoided. Do not drag or push the pipes from a truck bed. Contact of pipes with from any sharp object should be totally avoided.
Storage of Pipes
The pipes should preferably be stored indoors. When this is not possible, please ensure to:
• Protect the pipes from sun light, to reduce the effect of UV rays.
3ft
• Store on level ground and dry surface.
• If pipes of same diameter but different classes are being stacked together, place the thicker pipes below. i.e., Stack below SN2, SN4 and SN8. If placing pipes on racks, ensure the spacing between the supports does not exceed 3 feet.
Correct Transportation procedure
Where possible use a truck for deliveries. Lay pipe flat on the tray.
Alternate socket and pipe ends when loading pipe.
Keep pipe strapped down so it doesn’t roll around and remains supported.
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 41
Installation Guide for Pushfit
Easy and 100% leakproof installation.
Step 1 : Cutting
Measure and cut pipe to size. Ensure to cut the pipes straight and square to provide optimal bonding area for the solvent cement.
Inspect pipe ends thoroughly before making the cut, if any cracks or split in the ring is noticed cut off a minimum of 25 mm beyond the visible crack before proceeding.
Step 2 : Chamfering and Deburring
Burrs in and on pipe end can obstruct flow/proper contact between the pipe and socket of the fitting during assembly and should be removed from both in and outside of the pipe. A 15 mm dia half round file/a pen knife or a Deburring tool are suitable for this purpose.
A slight bevel on the end of the pipe will ease entry of the pipe into the socket of the fitting socket.
Step 3 : Fitting Preparation
Use a clean dry cloth to wipe the dirt, moisture from the fitting and pipe end.
Step 4 : Check for Brown Seal™
Check the socket end for Brown Seal™. Ensure that the brown part of the seal is towards the outside of socket.
Step 5 : Lubricant
Apply the lubricant on the chamfered end of the pipe.
Step 6 : Assembly
Immediately insert the pipe into the fitting socket. Rotate the pipe slightly while inserting. Withdraw pipe until the mark is
12 mm away from socket. This means a 12 mm gap exists between the end of the pipe and the socket register. This gap will allow the pipe to expand without distorting the pipe-work jointing.
ASHIRVAD underground pipes and fittings are joined with the help of Ashirvad Lubricant. For faster plumbing and leak proof joints we strongly recommend the use of Ashirvad lubricants only.
1
2
3
4
5
6
Trench Excavation
Trench excavation are carried out principally to allow installation or repair of public utilities, drains and sewers to serve populated areas The density of the backfill material, the width of the trench at the crown of the pipe, b, and the nominal outside diameter of the pipe, D, and the height of backfill
(h t
) all influence the loads imposed on the pipe.
Types of Trench
Narrow Trench
The pipe is laid in a relatively narrow trench with backfill properly compacted, the weight of fill is jointly supported by both the pipe and the frictional forces along the trench walls.
The narrow trench condition is used where excavation commences from the natural ground surface without any fills above the surface.
Wide Trench
A wide trench gives rise to loads greater than those which occur in narrow trench owing to the greater mass of backfill bearing on the pipe, although friction between the undisturbed trench side and the backfill reduces the load to some extent.
h t
Narrow Trench h t
Wide Trench b
D b
D
Backfill
Undisturbed
Material
Backfill
Undisturbed
Material
Important Note
When a trench excavation is being planned for, a thorough search should be made for information about any existing utilities adjacent to or crossing the line of the planned trench, including their sizes, locations and alignments. Most of the underground utilities are live systems, such as electricity, water, sewer and gas, and can be dangerous to workers when damaged or fractured.
Also consideration to water bodies or surface water is the be given to ensure no buoyancy effects on the underground drainage system.
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 43
Underground Fittings
– Technical Details
PLAIN BEND 45° COUPLER
4
6
8
Size
(in)
α
DN S Z1 Z2 L1 L2
45° 110 3.3
45° 160 4.1
45° 200 5.0
23.2
37 64
33.1
50.2
87
41.4
64.5
110
54
70.9
85.0
PLAIN BEND 87.5°
8
10
12
Size
(in)
4
6
REPAIR COUPLER
DN
110
160
200
250
315
S
3.0
3.7
4.5
5.6
7.0
L1
61.5
79.1
95.8
122.3
142.5
L2
127
163.6
197
251.5
294.0
4
6
8
Size
(in)
α
DN S Z1 Z2 L1 L2
87.5° 110 3.3
52.7
66.7
64
87.5° 160 4.1
76.6
93.7
87
87.5° 200 5.0
95.7
118.9 110
REDUCING COUPLER
54
70.9
85.0
8
10
12
Size
(in)
4
6
DN
110
160
200
250
315
S
3.0
3.7
4.5
5.6
7.0
LONG SWEEP BEND 87.5° PLAIN
L1
127
163.6
197
251.5
294.0
Size
(in)
DN
4 x 6 110
6 x 8 160
DN1 S
160 4.1
200 5.0
8 x 10 200 250 6.3
6 x 10 160 250 6.3
8 x 12 200 315
10 x 12 250 315
7.8
7.8
L1 L2 Z
54 82
70.9
100
51
43.1
85.0
133.0
52
7.09
133.0
45.1
85.0
150.0 75.9
111.0
150.0 52.8
4
6
8
Size
(in)
α
DN S Z1 Z2 L1 L2
87.5° 110 3.3
102.4 102.4 60
87.5° 160 4.1
145.3 145.3 81
60
81
87.5° 200 5.0
184 184 100 100
The following notation
(symbols) shall apply in this reference manual.
DN
DN1
– Nominal Diameter
– Manhole ID
DN2/DN3/DN4 – Socket ID
L1 – Total length
L2 – Length from manhole
centre to socket
L3 – Total height
L4 – Bottom to centre of socket
SINGLE TEE PLAIN END CAP
Size
(in)
α
DN S Z1 Z2 L1 L2
4 110 111.5
3.3
52.7
69.3
64 54
6 160 161.5 4.1
8 200 201.8 5.0
76.6
98.7
87
96 125.3 110
70.9
85.0
REDUCING SINGLE TEE
Size
(in)
4
DN
110
S
111.3
L
121.3
BOTTLE GULLY TRAP WITH JALI - SINGLE SIDE
Size
(in)
DN DN1 S S1 Z1 Z2 Z3 L1 L2 L3
6 x 4 160 111.5 5.0 3.0 51.4 76.7 54 87 70.9 54
LONG SWEEP TEE PLAIN
Size (mm) DN1 DN2 DN3 S L1 L2 L3
160 x 110 161 109.5 182 3.25 290 132 152.5
BOTTLE GULLY TRAP WITH JALI - DOUBLE SIDE
Size
(in)
DN S
4
6
8
110
S1
3.3 3.0
Z2
167
Z3 L1 L2
100 64 54
L3
60
160 4.1
3.7
239.1
141.9 87 70.9
81
200 5.0 4.5
302.3 180 110 85.0 100
END PLUG
Size (mm) DN1 DN2 DN3 S L1 L2 L3
160 x 110 161 109.5 182 3.2
290 132 152.5
SINGLE WYE 45° PLAIN
Size
(in)
4
6
DN
110
160
S
3.0
3.0
L
69.5
88.5
Size
(in)
DN DN1 S S1 Z1 Z2 Z3 L1 L2 L3
4 110 111.5 3.3 3.0 22.8 140 140 64 54 54
6 160 161.5 4.1 3.7 33.2 202.6 202.6 87 70.9 70.9
8 200 201.8 5.0 4.5 42 254.8 254.8 110 85.0 85.0
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 45
Inspection Chambers
- Technical Details
315 x 110 mm 6-LINE ACCESS JUNCTION BASE
Size (mm)
α
315 x 110 45°
DN
315
DN1
322
DN2
111.5
315 x 110 mm 4-LINE ACCESS JUNCTION BASE
Size (mm)
315 x 110
α
45°
DN
315
DN1
322
315 x 110 mm LEFT/RIGHT HAND 90° JUNCTION
L1
466.6
L2
466.6
L3
220
DN2
111.5
L1
466.6
L2
220
L4
133.5
L5
74.5
L3
133.5
L4
74.5
315 x 110 mm TWO 90° INLET JUNCTION
Size (mm)
315 x 110
DN
315
DN1
322
315 x 110 mm RIGHT HAND 90° JUNCTION
DN2
111.5
L1
466.6
L2
233.3
L3
220
DN1
L3
L4
74.5
Size (mm) DN
315 x 110 315
DN1
322
DN2
111.5
315 x 110 mm LEFT HAND 90° JUNCTION
L1
466.6
L2
233.3
L3
220
L3
L4
220
L5
74.5
DN1
Size (mm) DN
315 x 110 315
DN1
322
315 x 110 mm STRAIGHT THROUGH
DN2
111.5
L1
466.6
L2
233.3
L3
220
L4
220
L5
74.5
Size (mm)
315 x 110
DN
315
DN1
322
DN2
111.5
L1
233.3
L2
233.3
L3
220
L4
74.5
The following notation
(symbols) shall apply in this reference manual.
DN
DN1
– Nominal Diameter
– Manhole ID
DN2/DN3/DN4 – Socket ID
L1 – Total length
L2 – Length from manhole
centre to socket
L3 – Total height
L4 – Bottom to centre of socket
Size (mm) DN
315 x 110 mm 315
DN1
322
DN2
111.5
L1
466.6
L2
233.3
L3
220
L4
74.5
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 47
450 MM INSPECTION CHAMBER BASE
Size (mm)
450 x 200 x 160 x 110
450 x 160 x 110
DN
45
45
RISER
DN1
471.9
471.7
DN2
161.5
161.5
DN3 DN4
201.8
111.5
161.5
111.5
L1
695
L2
656.6
655
L3
658.8
375
325
L4
218
198
L5
133
118
Size (mm)
315
450
FRAME
DN
315
450
DN1
331.8
482
DN2
323.4
472.5
DN3
315.0
466
L1
159.7
270.2
Size (mm)
315
450
LID
DN
315
450
DN1
358.1
492
DN2
293.5
453.4
DN3
295.1
454
DN4
405.1
539.8
L1
25
25
Size (mm)
315
450
DN
315
450
DN1
332.1
466
DN2
280.1
430
DN3
355.6
488
L1
51.7
70.4
The following notation
(symbols) shall apply in this reference manual.
DN
DN1
– Nominal Diameter
– Manhole ID
DN2/DN3/DN4 – Socket ID
L1 – Total length
L2 – Length from manhole
centre to socket
L3 – Total height
L4 – Bottom to centre of socket
Inspection Chambers and
Manholes - Technical Details
3 way
ø515+3
1-2%
500 mm dia inspection chamber
ø613+3
5 way
ø613+3
1-2%
600 mm dia inspection chamber
1-2%
433.50
800 mm dia manhole
1-2%
1000 mm dia manhole
Dimensions
Diameter id
(mm)
500
3 way / 5 way Inlet pipe dia
(mm)
5 way only
Outlet pipe dia
(mm)
Height range*
(mm)
Up to 160 mm Up to 160 mm 350 - 1000
Manual entry
/ Steps
No
3 way Up to 250 mm Up to 250 mm 350 - 1000 No
600
5 way Up to 160 mm Up to 250 mm 350 - 1000 No
800
3 way
5 way
Up to 250 mm Up to 250 mm 1050 - 1750
Up to 160 mm Up to 250 mm 1050 - 1750
3 way Up to 315 mm Up to 315 mm 1100 - 6000
1000
5 way Up to 200 mm Up to 315 mm 1100 - 6000
*Riser height is at 250 mm and 450 mm.
Yes
Yes
Yes
Yes
Standard
EN 13598-1
EN 13598-1
EN 13598-1
EN 13598-2
EN 13598-2
EN 13598-2
EN 13598-2
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 49
Underground Pipe Stock Yard
Ashirvad Underground Drainage
System Limited Warranty
The limited warranty will not apply if
1. Ashirvad products are used in combination with any other brand
/ make of pipes, fittings and accessories.
2. The product is used for applications other than underground drainage.
3. The product fails due to defects or deficiencies in design, engineering or installation.
4. Ashirvad Lubricant is not used for
Ashirvad Pushfit systems.
5. The Installation manual for the use of the product is not followed.
6. The pipe is not warranted against any mechanical damage by nails, drilling, chiselling, etc.
Ashirvad underground drainage system limited warranty
Ashirvad Pipes Pvt. Ltd., Bengaluru warrants to the original owner that the product will be free from manufacturing defects and conform to current applicable Indian and European standards under normal use. Buyers’ remedy for breach of this warranty is limited to replacement of, or credit for, the defective product. This warranty excludes any expense for removal or reinstallation of any defective product and any other incidental, consequential or punitive damages.
ASHIRVAD UNDERGROUND DRAINAGE TECHNICAL MANUAL 51
TM & PATENT: Any unauthorized use, copying, manufacturing etc. of the similar product or technology of the invention protected will attract legal actions including, imprisonment or fine under relevant
IP laws • Printed in 2015 • All rights reserved. No part of this publication may be copied, modified, reproduced in any material from (including photocopying or storing it in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright owner. Applications for the copyright owner's written permission to reproduce any part of this publication should be addressed to the copyright owner. Warning: The doing of an unauthorized act in relation to a copyright work may result in both a civil claim for damages and criminal prosecution. Disclaimer: Due care and diligence has been taken while editing and printing the book. Neither the author nor the publishers of the book hold any responsibility for any mistake that may have inadvertently crept in. Publishers shall not be liable for any direct, consequential, or incidental damages arising out of the use of the book. In case of binding mistake, misprints, or for missing pages etc. • Printed and bound in India. Moral Rights of the Author are asserted • The copyright owner reserves all rights and liberty to modify, change or alter the design drawings of the products as and when it deems appropriate and necessary without any prior notice to the users.
All rights reserved copyright ©2015 Ashirvad Pipes Private Limited
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Key Features
- Ease of installation
- Wide range of products
- Leak proof joints
- Corrosion resistance
- Chemical resistance
- Fire resistant
- Noise free
- Long service life
- Light weight
- Strong
Frequently Answers and Questions
What are the advantages of Ashirvad underground drainage system?
Why is Ashirvad Pushfit system recommended?
Why are foam core pipes used in underground drainage systems?
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