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SHURflo 316 Stainless Steel Rotary 

Close-Coupled External Gear Pumps

8

SHURflo Operating Instructions, Performance,  

Specifications and Parts Manual

Viton Models GMSV2A, GMSV4A, GMSV6C, GMSV2A3T, GMSV2A33T, 

GMSV4A5T, GMSV4A53T, GMSV6C7T and GMSV6C73T 

Teflon

®

 Models GMST2A, GMST4A, GMST6C, GMST2A3T, GMST2A33T, 

GMST4A5T, GMST4A53T, GMST6C7T and GMST6C73T 

Form L-4089 (2/17) 

Installation 

IMPORTANT: In any installations where 
property damage and/or personal  
injury can occur when the pump is  
not operating due to power outages,  
discharge line freezing, or any other 
reason, a back-up system(s) and/or 
warning system(s) should be used.
In order to safely use this product,  
familiarize yourself with this pump and 
also with the liquid (chemical, etc.)  
that is going to be pumped through  
the unit. This pump is not suitable for 
many liquids.
  1. Locate the pump as close to the  

liquid source as possible, making  
the suction line as short and direct 
as possible.

PIPING 
SUCTION
  2. Avoid excessive lengths or number 

of fittings and bends in the suction 
line.

  3. Attach suction line to suction inlet 

(See Figure 1 for proper rotation).

  4. It is recommended that same size 

pipe as pump ports be used or, in 
cases requiring lengthy piping, the 
next larger size pipe be used.

  5. If suction lift is greater than what is 

indicated in the performance chart, 
attach a foot valve below liquid 
level at end of suction line to ensure 
positive priming. Also note: If fluid 
specific gravity is greater than 1.4 or 
viscosity greater  
than 500 SSU, a foot valve is also 
recommended.

NOTE: If a foot valve (or check valve) is  
not used in the suction line, it may be  
necessary to refill the pump every time  
the unit is stopped and you wish to restart 
the pump. This depends on the length of 
time between starts and whether or not 
the gears are wet enough to close cavities 

to affect a prime.
  6. If solid contaminates are suspected 

in a liquid, place a filter in the  
suction line.

  7. Be certain all suction piping connec-

tions are airtight.

NOTE: Assure airtight pipe connections 
with the use of a pipe joint sealant.

DISCHARGE
  8. Attach discharge piping to the  

discharge outlet.

 

Support  pump and 

 piping during assembly 
and after installation. 

Failure to do so may cause piping to break, 
pump to fail, motor bearing failures, etc., all 
of which can result in property damage and/
or personal injury.

NOTE:  Should the pump need to be 
self-draining, the pump head should be 
mounted in the vertical position with 
the suction port facing down. When 
pumping high viscosity fluids, the 
vertical position can be used with the 
suction port facing up and the pump 
mounted under the source.  Increasing 
the suction pipe size and eliminating 
bends and elbows also assists in pump-
ing high viscosity fluids. Max. viscosity is 
500 SSU at 1725 RPM.
  9. If a shut-off valve or handgun is 

required in discharge line, provide  
a pressure relief valve for pump  
protection.

 

Shutting off  

 

 discharge without 
providing pressure 

relief can cause extreme overpressure which 
can result in pump and/or motor failure. Do 
not exceed 125 PSI pump or system pres-
sure.

 10. Operation under shut-off discharge 

conditions will overheat and  
damage pump. 

NOTE: Globe valve or other restrictive 
valves should not be used as shut-off 
mechanism as they are restrictive in 

nature and will seriously affect pump 
performance.
 11. After all piping and controls (not  

supplied with unit) have been 
installed, unit is ready for operation.

Operation

 

Do not run pump 
dry, as permanent 
damage to the pump 

gears, seal, and  
bearings will result. Suction pressure should 
never be greater than the discharge pres-
sure.

  1. All pumps must be primed before 

start-up and the seal chamber needs 

to be filled (See Figure 5). Never 
operate a pump unless it is secured 
to a solid foundation and all safety 
shields are installed.

    Upon start-up, maintain a minimum 

of 15 PSI (1 BAR) operating pressure 
on the pump. This will allow any 
remaining air to be driven from the 
seal chamber and will ensure liquid 
circulation to the mechanical seal.

  2. Gear pumps are built to very close 

tolerances and this tolerance must 
not be altered. The liquids must, 
therefore, be free of all abrasives. 
Sand, silt, wettable powders, etc. 
must be avoided. 

  3. When pumping a more viscous 

(beyond 500 SSU) liquid; a slower 
speed, a larger pipe size pump,  
and possibly a larger motor should 
be selected. 

Figure 5 - Prime Plug

Remove plug and fill seal chamber 

with fluid and reinstall plug

Содержание SHURflo Teflon GMST2A

Страница 1: ...32 to 280 F Large female NPT ports allow use with viscous fluids Pumps are close coupled with electric motors to handle up to 500 SSU at 1725 RPM or run at reduced speeds to handle a wide range of pum...

Страница 2: ...5TC C 182 184TC 1 1 3 2 1 2 3 3 4 4 1 5 11 2 6 2 7 3 Blank no code single phase ODP motor 3 3 phase ODP motor T 1 phase TEFC 3T 3 phase TEFC 1st 2nd 3rd 4th 5th 6th 7th Mounting Material Seal Gear Mot...

Страница 3: ...e pump and possibly a larger motor should be selected Manufacturer reserves the right to change performance without notification Performance with Water 3 Form L 4089 2 17 Performance with Oil Viton Te...

Страница 4: ...6 SS Ryton PPS 316 SS Graphoil Viton 8 9 GMSV4A 56C 1725 5 8 Keyed 5 8 Keyed CI 1 2 316 SS Ryton PPS 316 SS Graphoil Viton 17 5 GMSV6C 182 184TC 1725 20mm Keyed 11 8 Keyed CI 1 316 SS Ryton PPS 316 SS...

Страница 5: ...ed CI 1 316 SS Ryton 316 SS Graphoil Viton 88 1 Teflon Models GMST2A3T 3 4 TEFC 56C 115 230 11 2 5 6 1 1725 1 2 Keyed 5 8 Keyed CI 3 8 316 SS Ryton 316 SS Graphoil Teflon 36 9 GMST2A33T 3 4 TEFC 56C 2...

Страница 6: ...6 67 1 8 2 85 3 50 4 91 6 32 21 73 6 59 3 00 6 50 2 63 4 88 3 00 0 34 GMST2A GMST2A3T GMST2A33T GMSV4A GMSV4A5T GMSV4A53T 1 2 4 50 4 90 9 35 7 46 1 8 2 75 3 50 5 00 6 32 25 12 6 59 3 50 6 50 2 63 4 8...

Страница 7: ...proximately 1 8 The other coupling half must be installed on the motor shaft To do this it should be placed on the shaft with the key with the shaft recessed approximately 1 2 The set screw is not yet...

Страница 8: ...harge outlet Support pump and piping during assembly and after installation Failure to do so may cause piping to break pump to fail motor bearing failures etc all of which can result in property damag...

Страница 9: ...s for operating tempera tures above 120 F will result in severe pump and or motor damage NOTE When pumping fluids of high viscosity 500 ssu the required torque and HP can be reduced by adding a gasket...

Страница 10: ...is regulated into the seal cavity by means of a needle valve and flow meter Use of an anti siphon check valve is required Operation Continued It is essential that an anti siphon check valve be install...

Страница 11: ...nstalled elec tric motors are capable of operating for years with minimal maintenance Periodically clean dirt accumulations from open type motors especially in and around vent openings preferably by v...

Страница 12: ...wo styles one has a rubber boot and the other has an o ring Identify which type you have See Figure 10 For the Teflon seal see the following note and Figure 12 c Refer to assembling components on driv...

Страница 13: ...4089 2 17 Figure 13 Repair Parts Illustration Please provide following information Model number Serial number if any Part description and number as shown in parts list To order parts contact a SHURfl...

Страница 14: ...22362 22362 4 23 Coupling 21885 21886 22184 21885 21886 22184 1 24 Cap Screw 13309 13309 13309 13309 13309 13309 4 25 Anti Rotation Pin NA NA NA 22537 22537 22537 1 26 Motor 3 4 HP 1 PH TEFC 21594S O...

Страница 15: ...mark proper orientation of cover and pump body 4 Replace gaskets 3 per instructions listed in table 5 Replace cover 2 and cover screws 1 according to orientation marked in step 3 6 Tighten cover scre...

Страница 16: ...1200 Gear Reducer 145TC to 145TC 1 5 ratio 5 625 2 875 1167 29 AGR184TC600 Gear Reducer 184TC to 184TC 3 0 ratio 7 43 2 875 583 56 AGR184TC900 Gear Reducer 184TC to 184TC 2 0 ratio 7 43 2 875 875 56 A...

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