Beckett Pipe Fittings & LineGuardian Fuel Line System Manual

Beckett Pipe Fittings & LineGuardian Fuel Line System Manual
LGS-16-8-6 / LGS 8-8-6
380 Bedford Hwy, Suite 100, Halifax NS, Canada B3M 2L4 | 1.877.335.6729 |
Safety instructions
This is a professional grade product. Knowledge of construction
techniques, fuel system installation and electrical installation
according to codes are required for proper installation and user
satisfaction. We recommend that a licensed certified contractor
perform the installation of all Lorax Systems products. Our warranty
does not cover improper installation related problems.
Read the complete instructions provided in this manual
before beginning installation. For additional installation
information please go to
Lorax Systems has obtained applicable listings generally
available on a national basis for products of this type.
It is the responsibility of the installer/owner to determine
specific local code compliance prior to installation of
the product. Lorax Systems makes no representation
or warranty regarding, and will not be responsible for
any code compliance. Product specifications are subject
to change without notice.
Save these instructions for future use.
When using this unit, basic precautions should always be
performed, including the following:
Use this unit only for its intended use as described in this manual.
Please ensure proper tools are used as identified in this
instruction manual.
Please use this form to record your model and
serial number for future reference. Please keep
this manual for future reference.
Date purchased
Do not tamper with user-operated controls or such devices.
Cut ends of steel tubing are extremely sharp and can cause
severe lacerations. Use stainless steel mesh gloves when
handling. To assist, please use the included guide caps
provided to help minimize this danger.
Purchased from
Use this unit only for its intended use as described in this manual.
Serial number
Use attachments which are recommended by the
manufacturer only.
Installed by
System overview
The LineGuardian system
requires a termination fitting
to complete the length of
line being protected. The
use of the Termination fitting
is NOT optional. This fitting
must be attached properly
for the system to be considered installed and to provide the
required protection. The termination fitting includes a fill valve
for pre-charging the integrity monitor, a gauge to indicate the
level of charge in the integrity monitor, and a fusible plug to
automatically shut-off the flow of fuel from the tank in the
event of a fire at the appliance.
LineGuardian is a mechanical valve that is designed to protect
your property and the environment from an accidental or
malicious release of fuel from a damaged or compromised fuel
line connected to a fuel supply tank. LineGuardian continuously
monitors the integrity of your fuel line and should it detect a
problem, it will shut down the flow of fuel from the fuel tank
immediately. Lorax Systems has acquired the appropriate
certification listings for LineGuardian with CSA for this application
in the United States.
The tubing for the LineGuardian system includes a Lorax
LineGuardian CSST (corrugated stainless steel tubing) outer
pipe which is used for its strength and resistance to physical,
environmental, and chemical influences. The inner pipe is
a polyamide (composite) tube intended to carry the fuel to
the appliance. The outer CSST surrounds this polyamide
tubing providing protection from abnormal occurrences.
The CSST also acts as a containment safety device in that
it will hold fuel securely should the inner polyamide tube
become compromised. The space between the two tubes
(surveillance area) contains the pressurized charge of nitrogen
to monitor the integrity of both tubes (inner and outer).
LineGuardian is a significant step forward in improved
safety technology for fuel oil consuming devices, it includes
a number of components that make it a complete system.
There are three essential components to a fully operational
LineGuardian installation.
Required components
The valve body attaches
directly to the fuel tank outlet
and can be oriented to any
position. LineGuardian will
reliably operate on any type
of connection as required.
You may require special
adapter fittings in some cases,
however, every possible effort has been made to ensure
the components are standard and familiar for existing
practices in the field.
System installation
Before beginning installation, the tank should be securely installed
in accordance with all local codes. It is also important that the
tank is empty with all outlet fittings removed from the tank outlet
(in the case of a retrofit). The tank outlet should present clean
1" NPT female threads (install an approved bushing, if necessary,
using a certified non-hardening thread sealant suitable for fuel oil
applications). Take appropriate measures to prevent and contain
any oil that might drip from the outlet while unplugged.
Ensure that sufficient continuous lengths of 1/2" Lorax CSST and
Lorax polyamide 3/8" tubing are available before beginning the
installation. Use of any other tubing with this installation will void
the certification and warranty of the system.
Two LineGuardian tube end guide tools (Included with valve kit).
Electrical tape.
Stainless steel mesh gloves. (Not shown).
1/8" allen key (long).
LineGuardian components
Piping / tubing considerations
The installer must be familiar with the installation requirements for
the Lorax products as detailed in the installation guide, and must
also meet all qualifications and requirements to install fuel oil piping
as required by the local administrative and code authorities.
Precautions must be taken to ensure any exposed Lorax
LineGuardian CSST is not damaged or abused.
All piping/tubing, fittings and hardware should be stored
in a clean, dry location prior to installation.
Open ends of the piping/tubing are to be temporarily plugged
or taped closed prior to installation to prevent entrance of dirt,
dust or other debris.
The protective gray plastic jacketing should be kept in place
and undamaged to protect the tubing from corrosive threats.
Contact with chemicals containing chlorides must be followed
by a thorough rinse and wipe dry. This includes fluxes used
to solder copper tubing and acid based cleaners used to
wash masonry.
In addition, the following tools and materials will be required:
Required tools
Assortment of 3/4" tubing (or 1/2" CSST) hangers.
Gas tight and oil resistant, UL listed thread sealant. (Not shown).
Professional grade CSST cutter with sharp blade. Only use a cutter that is rated for stainless steel.
Professional grade plastic tube cutter suitable for 3/8" diameter.
Two open end wrenches; one 1-1/8" and one 1-1/4".
1-1/4" diameter hole cutter (if wall and/or floor penetration
is required). (Not shown).
Protect tubing from contact with sharp or heavy objects.
Sharp utility knife with “roofing shingle” type hook blade.
Good quality measuring tape.
Sharp tip permanent marker.
Avoid stressing the tubing or fittings with tight bends, kinks,
twists, stretching or repetitive bending. Refer to fig. 4-1
below for the recommended minimum bend radius for Lorax
LineGuardian CSST (fig. 4-1).
use of other conductive metallic systems such as metallic
appliance vents,metallic ducting and piping, and electrical
cables must be avoided.
Lorax LineGuardian CSST shall be supported in a workmanlike
manner with pipe straps, bands or hangers suitable for the
size and weight of the CSST, at intervals not to exceed six feet
vertical or horizontal. A proper support is one which is designed
as a pipe hanger, does not damage the tubing during installation,
and provides full support .
“J” hooks shall not be used as they may damage the Lorax
LineGuardian CSST. Zip ties/cable ties shall not be used as a
primary support but may be used to organize or bundle Lorax
CSST. When supporting Lorax LineGuardian CSST runs, the
Lorax LineGuardian CSST must be rigidly terminated with a
Lorax LineGuardian CSST termination fitting. This is achieved by
terminating to a rigidly mounted connection point (i.e. appliance).
Please see detailed instructions in the installation guide section
of this document for information regarding the proper handling
and installation of the Lorax LG polyamide internal tubing.
Step by step
installation procedure
Minimum bend radius
System minimum bend radius
fig. 4
fig. 5
fig. 6
1 Generously estimate the total run length required to route
flexible tube from tank outlet to appliance inlet.
2 Base routing requirements on best practices for flexible oil
line installation. Please ensure you adhere to all regulatory
requirements for your jurisdiction.
fig. 3
3 Include approximately three extra meters for a stress loop at
each end (if required).
2 Use a poly tube cutter (fig. 4) to cut the tube cleanly and
squarely, such that at least 200 mm or 8" extend out each
end of the CSST.
4 Unroll and uncurl this length of 1/2" Lorax corrugated stainless
steel tubing (CSST) by referring to the measurement markings
on the tubing jacket.
3 Leaving the end guide in place, use electrical tape (fig. 5)
to seal off the leading end of the tubes if they will need
to be threaded through openings or areas with potential
contamination. For an example of a suitable poly tube
cutter, please see the next page (fig. 10).
5 Cut using a CSST cutter (fig. 1) leaving approximately
one inch for fitting attachment. The cut should be centered
between two corrugations and the result should be a clean
and round cut end. Please note: when cutting CSST,
please ensure the section being cut is as straight as possible.
Cutting on a bend or curve will render the newly cut ends
unusable. To ensure a quality flare, all cuts should be made
on a straight section of tubing.
6 Attach end guide tools on each end of CSST as shown
in (fig. 2). Failure to attach these end fittings WILL result in
damage to the Parflex tubing. If this occurs, you will need
to replace all of the Parflex tubing.
2 NOTE: Lorax Systems recommends the use of a stress relieving
loop at the tank connection end, however, it may not be
required or recommended by local authorities and is dependent
on installer best practices and jurisdictional requirements.
3 Route and secure the combined tubing from the tank outlet to
the appliance inlet in accordance with industry best practices,
and all regulatory and local compliance requirements.
1 Form an approximately 18" diameter stress relieving loop
at a convenient distance (no less than 300 mm/18") from
the tank end of the line, if required.
1 Feed the 3/8" LG tubing through the length of the CSST (fig. 3).
1 Carefully apply thread sealant to the external threads on the
inlet of the LineGuardian valve (fig. 6) and install into the tank
outlet using a wrench on the integrated nut flats.
fig. 1
fig. 2
2 Depending on the LineGuardian model being installed, it may
be required to install a reducing bushing to complete the fitting
of the LineGuardian valve (fig. 6). If the valve does not screw
in by hand at least two and half turns, remove and check for
damaged or contaminated threads (fig. 7).
fig. 11
3 Tighten (using a flat-jawed wrench on the integral nut flats) from
two to three full turns past hand tight, stopping when the outlet
is best oriented for the tube routing and accessibility (fig. 8).
fig. 12
1 Remove the end guide from the tank end of the CSST (fig. 9).
fig. 13
2 Remove the brass nut from the outlet fitting on the LineGuardian
valve being careful to collect and retain the two bushings
(note that they are coated with a waxy lubricant and may
be stuck inside the nut or on the tip of the remaining fitting).
Take care to protect these components from contamination
while exposed (fig. 11).
fig. 14
5 Insert the tank end of the polyamide tube fully into the inner
fitting of the LineGuardian valve outlet. A full insertion will press
beyond an initial resistance until it cannot press in further and
cannot be withdrawn without the use of a special tool (fig. 14).
NOTE: if the polyamide tube must be withdrawn after insertion,
use a 1/8" allen key, to firmly depress the internal collet fitting,
while simultaneously pushing the tube in firmly, and then pulling
it out while the collet is still being depressed.
3 Using a utility knife, strip jacket back to the valley of the
second corrugation (fig. 12). Do not cut the jacket in such a
way that the sealing surface of the tubing is scored. The short
piece of jacket can easily be removed by placing the utility
knife blade under the jacket to peel the jacket off.
6 Separate bushings and position as shown (fig. 15) in the
valley of the first corrugation leaving one corrugation exposed
between the end of the bushing and tubing. Slide the nut
back to the end to contain them.
4 Place the nut over the end of the CSST (noting correct orientation),
and position it at least 200 mm (8") from the end (fig. 13).
fig. 9
fig. 19
fig. 20
fig. 21
fig. 22
fig. 7
1 Bend and attach tubing with approved brackets as
necessary for final secure and neat arrangement of stress
loop. All bends, penetrations and attachments must be
completed in accordance with best practices and all
regulatory requirements, codes and standards.
7 Pull the nut and CSST towards the LineGuardian valve. Insert
bushings into fitting body. As small amount of resistance
indicates the bushings are being compressed to further
capture the jacket. NOTE: The piloting feature of the bushings
ensures the tubing is aligned properly with the fitting body for
a uniform flare and tight seal. Screw the nut onto the fitting,
taking care not to cross threads (fig. 15). Do not tighten the
CSST nut completely at this time. You will be using nitrogen
to purge the lines before tightening this end of the installation.
Please refer to step 8 for nitrogen purging procedure. NOTE:
After purging with nitrogen, the CSST nut at the valve must
now be fully and completely tightened. This means it must not
be able to be tightened any further. If you are unsure of this
instruction, please contact your sales rep or the manufacturer.
fig. 8
fig. 10
1 Before connecting the appliance end of the tubing,
a filter and manual filter inlet valve should be installed
in accordance with local codes, best practices, and
regulatory requirements upstream of the appliance
and securely mounted. You will be connecting the
LineGuardian termination fitting to the filter (fig. 16).
5 Bend the tubing and carefully cut back any excess CSST as
needed to result in a neat installation. Take extra care when
cutting CSST to avoid cutting or damaging the now installed
Parflex tubing.
2 NOTE: All piping installed downstream of the termination
fitting is NOT protected by the LineGuardian system.
3 Carefully apply thread sealant to the external threads of the
nipple. Screw the LineGuardian termination fitting onto the
nipple and tighten (using one flat jawed wrench and a pipe
wrench) from two to three full turns. Orient so that the fill valve
on the LineGuardian termination fitting is accessible and the
gauge is visible.
6 Cut the CSST gray covering back to the second corrugation
and discard for the CSST nut and the two split ring inserts.
7 Prior to cutting the polyamide tubing to length, press the tube
firmly into the CSST (towards valve) and, using a permanent
marker and the gauge provided, mark a line three inches from
the end of the CSST while maintaining the firm pressure on
the polyamide.
4 At the appliance end of tubing, form the indoor stress loop at
a suitable location if required by code or best practices.
8 Use the poly tube cutter to cut the tube cleanly at the
measured mark (fig. 21). Excess tube can be discarded.
fig. 15
9 Remove the brass nut from the outlet fitting on the termination
fitting, being careful to collect and retain the two bushing
halves that may be stuck inside the nut or on the tip of the
remaining fitting.
fig. 16
10 Place the nut over the end of the CSST as shown.
11 Separate bushings and position as shown (fig. 22) in the
valley of the first corrugation leaving one corrugation exposed
between the end of the bushing and tubing. Slide the nut
back to the end to contain them.
fig. 17
fig. 18
12 Pull the nut and CSST towards the termination fitting (fig. 23),
inserting the bushings into the fitting adapter. Screw the nut
onto the outlet fitting body taking care not to cross threads.
3 Once the system is pressure tight, the tank and line can be
filled with oil normally. Note that there is a manual shut off
valve located on the underside of the LineGuardian valve that
will need to be opened.
13 Once the nut is hand tight and clearly engaged without cross
threading, use wrenches to tighten the nut until it cannot be
tightened further. A torque of 40 ft-lbs is required.
1 CSST nut at LineGuardian valve should be loose
(do not tighten).
Verify the Installation
8 If there is a drop in pressure and vacuum there is an internal leak.
1 After installing the LG system and charging with nitrogen,
install a vacuum gauge on the fuel pump inlet port or a “T”
fitting installed at the fuel supply line inlet at the pump.
i) At the fuel tubing connections: The first place to check
for an internal leak is at the fuel tubing connection. A leak at
the tube connection is normally caused by an improper seal
between the tubing and the connection fitting inside the valve
or termination fitting. Close the fuel valve at the supply tank
and remove and inspect the tube for any damage. The last
inch of tubing must not have any outer surface damage or it
will not properly seal. If this is found to be the case, cut back
the fuel tube and re-install as per previous instructions.
2 Check all external fittings with a soap test.
2 Purge line at termination fitting Schrader valve for
approximately 10 seconds.
3 Open the manual valve at the tank and prime the oil burner
fuel pump. If using a single line top feed fuel line, close the
supply valve at the tank until a vacuum of at least 15" hg
shows on the gauge, then open the valve quickly to remove
any air trapped in the fuel line. Repeat this process until all of
the air is removed and close the bleeder valve.
3 Tighten CSST nut at LineGuardian valve. This completes the
line purge. System is ready for charging.
1 Using a compressed nitrogen canister, regulator and a
Schrader valve fill fitting, inflate the system to 20-25 PSIG
using the fill valve on the termination fitting. Verify exact
pressure with a precision pressure tester and replace cap
on fill valve. Do not over pressurize.
4 Start the oil burner and observe that interstitial pressure
remains stable on the termination fitting pressure gauge.
Vacuum should be zero or close to it if proper syphon effect
has been achieved.
5 With the oil burner running, close the manual valve at the tank.
Open the bleeder valve at the fuel pump until a vacuum of 15
to 25" hg is acquired. Close the bleeder valve and turn the oil
burner off.
2 Wait for one half hour and retest the pressure to ensure that
there are no leaks. If pressure has dropped noticeably, first test
CSST fittings with soap and water and retighten if necessary.
6 Pressure and vacuum gauge readings should hold.
7 If there is a drop in pressure only, there is a surveillance gas
(nitrogen) leak in the system.
fig. 23
fig. 25
fig. 24
fig. 26
Leaks of this nature can be from the CSST tubing itself or
the external fittings on the valve or termination fitting. Fitting
leaks can be readily identified by performing a soap test
on all fittings while the system is charged. Any fitting leak
can usually be corrected by simply tightening. If a CSST
connection continues to leak after tightening, remove the
tubing and check the double flare on the tube-end for flaws.
If the flare has been compromised, remove the internal fuel
tubing from the connection, insert a plastic sleeve (tubing
protector) into the CSST and cut the CSST back two inches.
Cut the fuel tubing to the required length and inspect for any
damage (nicks or scratches) on the tubing surface within the
last inch of the tube-end. If tubing surface is smooth, re-install.
Annual maintenance
LineGuardian is a safety system designed to respond to even
the smallest of line leaks. LineGuardian should be inspected and
maintained annually to ensure proper operation and performance.
1 Ensure system is active by checking pressure gauge at
termination fitting. Pressure should be between 18 and 25 PSI.
2 Inspect system to ensure all components are in good working
condition and secure.
3 Discharge the system surveillance gas at the termination fitting
by releasing the nitrogen through the Schrader valve.
4 Once the nitrogen has been released, the automatic feature of
LineGuardian has been activated, and the LineGuardian valve
is now closed. The flow of fuel oil is now stopped.
ii) In the fuel tubing: Unless severely damaged before or during
installation inside of the CSST, or if a manufacturer’s defect is
identified, a fuel tubing leak is very rare. If suspected, remove
the tubing from the CSST and replace it.
5 Re-Charge the LineGuardian system with nitrogen to a
minimum of 22 PSI. This step has re-opened the automatic
valve. The flow of fuel oil is now active.
iii) Inside the valve: A leak inside the LineGuardian valve
or termination fitting would be indicated if you are sure the
fuel tubing is not compromised in any way at the tubing
connections (see above). If this is the case, replace the
valve first. If the leak continues, replace the termination
fitting. If either of these replacements remedy the problem
and if still under warranty, return the defective part to the
place of purchase.
6 Ensure the nitrogen is maintained at a minimum of 22 PSI.
If necessary, perform a “soap” test on connections to ensure
there are no nitrogen (surveillance gas) leaks.
7 Exercise the manual valve by turning OFF and ON three
consecutive times (RED handle on bottom of valve). Ensure
that the manual valve is in good working condition. Ensure
the manual valve is left in the ON position after exercising.
9 If there is a drop in vacuum only, the LineGuardian system is
working correctly. However, there is a leak in the fuel pump or
fittings between the termination fitting and the pump.
8 This completes the annual maintenance required
for LineGuardian. If you have questions or concerns,
please contact technical support as provided to
you from your distributor.
Re-tighten all fittings on both the tank and fuel pump to
eliminate the vacuum leak. If this does not resolve the problem
there may be an issue with the fuel pump. Consult the fuel
pump manufacturer’s instructions to troubleshoot the leak.
The system will not open
and allow fuel to pass.
Fittings and valve
Check pressure gauge on termination fitting to ensure the proper pressure
is being applied. If not pressurize and evaluate.
The system seems to be
losing nitrogen pressure.
Fittings and valve
Pressurize the system and perform a soap test on all fittings and joints in
the system.
The system is holding
nitrogen pressure, however,
the fuel will not flow.
Check the manual valve located on the bottom of the LineGuardian valve
body and ensure it is in the open position. Ensure that the fuel system is
holding a vacuum. Check all external fittings and the fuel pump.
The system seems to be
loosing nitrogen pressure
slowly. Eventually the valve
closes and stops the fuel.
All components
The pressure gauge on the
termination fitting seems to
indicate different pressures
at different times.
All components
The system will not charge
with nitrogen.
All components
This problem usually indicates there was a problem installing the polyamide
tubing during installation. You should verify with a soap test that no fittings or
joints are leaking. You may need to redo the polyamide connections at one
or both ends of the system.
Although the pressure applied is enough to open the LineGuardian valve,
if the temperature drops, the pressure will drop as well. Check for leaks by
performing a soap test. If no issues are found after the soap test, then it
may simply be a symptom of the lower temperatures. If the LineGuardian
valve is closed, add more nitrogen to open.
Perform soap test. If need be, replace the Schrader valve on the
termination fitting.
Correct installation, system is fully operational
LineGuardian system is functioning correctly, but there is a vacuum
leak in one of the external fittings. Check fuel fittings at the tank
and burner, as well as the fuel pump for vacuum leaks (see #9 in
“Verifying the Installation”)
There is a nitrogen gas leak within the system. Check CSST and
fittings for leaks using a soap test. Retighten all fittings and if
necessary re-install to remedy the situation (see #7, in “Verifying the
There is an internal leak within the LineGuardian system. Check
the polyamide fuel line for damage or imperfections, as well as all
connection points to ensure a proper seal is made to both the valve
and termination fitting (see #8, in “Verifying the Installation”).
(i) LORAX Systems Inc. (“Lorax”) warrants to persons (the “Buyer”)
who purchase its LineGuardian Systems (the “Products”) that
the Products are free from defects in material and workmanship
and conform to the specifications published by Lorax.
(vi) Any replacement Products that Lorax provides to the
Buyer will be subject to the warranty period of the Product
originally purchased by the Buyer.
(vii) Lorax will not reimburse or compensate the Buyer for any
transportation, duties, brokerage fees, labor costs, or parts
adjustments or repairs, or any other work, unless Lorax has
authorized such costs in advance in writing.
(ii) The provisions of this warranty extend to the Products, when
used in accordance with operational instructions within the
tolerances of Lorax’s product specifications and unless
otherwise specified in writing by Lorax, for the following periods:
(viii) This warranty will not apply to Products subjected to misuse,
neglect, alteration, accident, improper care after installation
or any chemical, electrical or physical abuse, nor to Products
not properly installed by a qualified, competent technician
who is licensed as may be required in the jurisdiction where
the Product is installed and who is experienced in making
such installations.
· LineGuardian valve system – 5 years from the date of
manufacture by Lorax; and
· Fuel lines – 1 year from the date of delivery.
(iii) The Buyer must provide written notice of any claim of breach of
warranty to Lorax within the warranty period described above.
(iv) Lorax will not be liable for any special or consequential damages
as a result of a breach of this warranty. Lorax’s sole obligation
in the event of a breach of this warranty will be, at Lorax’s sole
discretion, to either issue a credit, or repair or replace any
Products that are proven to be defective.
(ix) The Buyer is responsible to provide suitable monitoring and/or
backup systems to prevent damage or inconvenience due
to product shutdown or failure, and failure to implement such
systems will constitute misuse or neglect by the buyer.
(x) The Buyer is responsible to determine whether the Products
are suitable for the Buyer’s or any third-party’s intended use or
application, including but not limited to reviewing the published
specifications, testing the Products and ensuring that the design
of the Products is suitable for the Buyer’s intended use.
(v) The LineGuardian valve is designed to trigger when a leak is
detected or for other safety reasons, and the reason for such
trigger may either make the valve unusable or require qualified
service for reinstallation. In the event the valve is triggered for
any reason, Lorax will not be liable for repair or replacement of
the Products or any components used with the Products.
(xi) This warranty is limited to the precise terms set out above and
provides exclusive remedies expressly in lieu of all other remedies.
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