moyno 300 Series Service manual
The Moyno 300 Series pumps are self-priming, positive displacement pumps capable of handling a wide range of fluids, including viscous fluids and fluids with solids in suspension. They are also able to run dry without damage, making them ideal for applications where the pump may be run intermittently or where the suction line may be interrupted. With a maximum discharge pressure of 25 psig and flow rates up to 100 GPM, the Moyno 300 Series pumps are well-suited for a variety of applications, including food and beverage processing, chemical processing, and paint and ink manufacturing.
advertisement
Assistant Bot
Need help? Our chatbot has already read the manual and is ready to assist you. Feel free to ask any questions about the device, but providing details will make the conversation more productive.
Section:
MOYNO
®
500 PUMPS
Page: 1 of 4
Date: March 1, 1998
SERVICE MANUAL
MOYNO
®
500 PUMPS
300 SERIES
30100, 30102, 30104, AND 30105 MODELS
DESIGN FEATURES
Housing: Phenolic
Pump Rotor: Phenolic
Elastomers: NBR, EPDM, FPM
Shaft: Carbon steel
Bearings: Prelubricated, fully sealed ball bearings mounted on shaft and integrally cast in pump body.
Seal: Mechanical (carbon/ceramic)
Mounting: Resilient mountings for quiet operation
Port Size: 1” OD for hose connections
INSTALLATION
Mounting Position. Pump may be mounted in any position. When mounting vertically, it is necessary to keep bearings above seals to prevent possible seal leakage into bearings.
Pre-Wetting. Prior to connecting pump, wet pump elements and mechanical seal by adding fluid to be pumped into suction and discharge ports. Turn shaft over several times in a counterclockwise direction to work fluid into elements.
Piping. Install 1” ID hose using adjustable hose clamps. If hose is lengthy, it should be supported to avoid excessive strain on pump housings.
Drive. On belt driven units, adjust belt tension to point of non-slip. Do not overtighten.
On direct drive units, coupling components should be aligned and spaced at least
1
/
16
” apart.
Note: Pump shaft diameter is .6267”. Pulley or coupling may have to be hand reamed for proper fit.
Check rotation before startup. Rotation must be counterclockwise when facing shaft to prevent rotor unscrewing from shaft.
Maximum speed is 1750 rpm.
OPERATION
Self-Priming. With wetted pumping elements, the pump is capable of 25 feet of suction lift when operating at 1750 rpm with hose size equal to port size. Be sure suction lines are air tight or pump will not prime.
DO NOT RUN DRY. Unit depends on liquid pumped for lubrication. For proper lubrication, flow rate should be at least 10% of rated capacity at a given rpm.
Pressure and Temperature Limits. Maximum discharge pressure is 25 psig. Unit is suitable for service at temperatures shown in Table 1.
Storage. Always drain pump for extended storage periods by removing suction and discharge lines, loosening resilient mount clamps and turning discharge port to drain position.
Table 1. Temperature Limits
Elastomer
*NBR
*EPDM
*FPM
Temperature Limits
10°-160°F
10°-210°F
10°-240°F
*NBR = Nitrile
*EPDM = Ethylene-Propylene-Diene Terpolymer
*FPM = Fluoroelastomer
TROUBLE SHOOTING
WARNING: Before making adjustments, disconnect power source and thoroughly bleed pressure from system. Failure to do so could result in electric shock or serious bodily harm.
Replace belt or coupling guards before reconnecting power.
Failure To Pump.
1.
Belt or coupling slip: Adjust belt tension or tighten set screw on coupling.
2.
Stator torn; possibly excessive pressure: Replace stator, check pressure at discharge port.
3.
Wrong rotation: Rotation must be counterclockwise when facing shaft.
4.
Threads in rotor or on shaft stripped: Replace part. Check for proper rotation.
5.
Excessive suction lift or vacuum .
Page 2
Pump Overloads.
1.
Excessive discharge pressure: Check discharge pressure for 25 psig maximum or obstruction in discharge line.
2.
Fluid viscosity too high: Limit fluid viscosity to 20,000 CP or 100,000 SSU.
Viscosity CP
1-300
300-1,000
1,000-2,000
2,000-5,000
5,000-10,000
10,000-20,000
Limit RPM
1750
1200
700
350
180
100
3.
Insufficient motor HP: Check HP requirement.
Noisy Operation.
1.
Starved suction: Check fluid level, size of piping, and obstructions in pipe.
2.
Bearings worn: Replace pump body.
3.
Insufficient mounting: Check base for rigidity. Add support if necessary.
Seal Leakage.
1.
Leakage at startup: If leakage is slight, allow pump to run several hours to let faces run in.
2.
Persistent seal leakage: Faces may be cracked from freezing or thermal shock. Replace seal.
Pump Will Not Prime.
1.
Air leak on suction side: Check hose connections .
PUMP DISASSEMBLY
WARNING: Before disassembling pump, disconnect power source and thoroughly bleed pressure from system. Failure to do so could result in electric shock or serious bodily harm.
1.
Disconnect power source.
2.
Disconnect suction and discharge hoses. Loosen support clamps (146) and remove pump from base (142).
3.
Remove screws (112) which secure suction housing (2) to pump body (1). Remove suction housing (2) and stator
(21).
4.
Rotor (22) can be removed from shaft by turning in a clockwise direction (LH thread).
5.
Remove rubber washer and ceramic seal face from shaft. Lift seal body out of seal bore in pump body. If any parts of the mechanical seal (69) are worn or broken, the complete seal assembly should be replaced. Seal components are matched parts and are not interchangeable.
6.
The bearings and shaft assembly is molded into the pump body and should not be removed. Pump body and shaft are a complete part.
PUMP ASSEMBLY
1.
Install mechanical seal (69) by oiling edge of seal body and pressing into seal bore squarely and firmly. Apply light oil to seal faces and slide ceramic face with rubber washer onto shaft. Be sure rubber washer is completely on shaft.
Caution: Do not use oil on EPDM parts. Substitute glycerin or soap and water.
2.
Screw rotor (22) onto shaft in a counterclockwise direction (LH thread).
3.
Install stator (21) on rotor, seating stator flange in groove on pump body (1).
4.
Assemble suction housing (2) to pump body (1). Do not overtighten screws, and apply even pressure on all screws so as not to strip threads in plastic housing.
5.
Connect hoses and follow installation instructions.
WARNING: Replace belt or coupling guards before reconnecting power.
Page 3
When ordering parts, please specify pump model number, pump serial number, part number, part description and quantity.
PARTS LIST
Item No.
1
2
*21
Description
Pump Body (Includes
Bearing and Drive Shaft)
Suction Housing
Stator
*22
64
64 A
*69
Rotor
Cushion Ring (2 req.)
Outer Ring (2 req.)
Mechanical Seal
112
142
Screws (6 req.)
Pump Support
146 Clamp (2 req.)
*Recommended spare parts.
**30100 pump is the same as 30102, less base.
30100
Pump Model Number
30102 30104
330-5311-000 (Phenolic)
**
**
**
**
NBR
340-3500-120
330-0945-000
EPDM
340-3500-320
320-6976-000
320-1486-000 (Phenolic)
320-1733-000
320-1734-000
320-6977-000
320-6936-000
330-1697-000
320-4277-000
NBR
=
Nitrile
EPDM
=
Ethylene-Propylene-Diene Terpolymer
FPM
=
Fluoroelastomer
30105
FPM
340-3500-520
320-6978-000
D
ouble The Length Of Your
Moyno Pump Warranty For
FREE!
For your
free
pump warranty extension, choose from one of the three options below:
1.
Go to www.moyno.com and fill out the registration form online
2.
Mail this form by placing it in an envelope and sending it to: Moyno, Inc.
Attn: Tish Wilson
3.
Fax this form to 937-327-3177
P. O. Box 960
Springfield, OH 45501-0960
U.S.A.
Thank you
for choosing a Moyno Pump. Please take the time to complete this warranty registration form.Upon receipt of your form, your standard limited warranty on defective material and workmanship will be extended to twice the standard period of time at no additional cost to you. We appreciate your business and look forward to serving you in the future.
MOYNO
™
Always Insist on Genuine Moyno Replacement Parts!
Moyno
®
Pump Warranty Registration
Pump Model #
Purchased From
Your Name
Your Company Name
Address
City/State (Province)/Zip Code
Phone Number
Application for Which This Pump Was Purchased
Material Flow Rate
Operating Speed
Hours Operated per Day
Viscosity
Continuous
Discharge Pressure
Percent of Solids
Suction Pressure
Particle Size
Pump Serial #
Date Purchased
Your Title
Fax Number
How Did You First Hear of Moyno Pumps?
❑ Advertisement
❑ Distributor Salesperson
❑ Postcard ❑ Trade Show
❑ Previous Experience With Moyno Pumps
Process Temperature pH Value
Intermittent
NPSH Available
Abrasion Rating
❑
❑
Referral
Other – Explain Below
Thank You!
© 1999 by Moyno, Inc.
® Moyno is a registered trademark of Moyno Inc.
Printed in U.S.A.
advertisement