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Please read and save this Repair Parts Manual. Read this manual and the General Operating Instructions carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. The Safety Instructions are contained in the
General Operating Instructions. Failure to comply with the safety instructions accompanying this product could result in personal injury and/or property 
damage! Retain instructions for future reference.

SHURflo Operating Instructions, Performance,
Specifications and Parts Manual

Models NG7V, NG11V, NG7V-PH and NG11V-PH

Refer to form L-4082 for General Operating and Safety Instructions.

Form L-4092 (3/10)

SHURflo Commercial-Duty Filter and Rendering Oil
Rotary Close-Coupled External Gear Pumps

Description

SHURflo self-priming, positive displacement, external gear, hot oil pumps feature cast-iron construction, with Viton 
mechanical seal for high temperature use. This series of non-clogging pumps are highly recommended for high flow waste oil
rendering because they are able to pass small non-abrasive particles and reduce oil shear. Features include heavy-duty stainless
steel helical non-corrosive gears for quiet and long-life pumping action, carbon graphite bushings and ball bearing drive for 
continuous use, with a stainless steel adjustable pressure relief valve as standard equipment. This series of pumps can also be
used for hot oil or frying oil filtration up to 375° F., meeting NSF-listing requirements. Pumps are configured with motors
specifically for hot oil applications where oil is heated prior to pumping and discharge pressure limitations do not exceed 
50 PSI with supplied motors. They provide a nearly pulseless flow in applications where small or non-particulate and non-
abrasive fluids are pumped. AC ODP single-phase motors have thermal overload protection. Complete package is easy to
install, or optional pump heads only can be purchased for custom installations.

Uses:  Ideal for a wide range of commercial fat fryer hot oil cooking, filtering, or waste oil rendering applications. This pump
can also be used in non-NSF hot oil applications with non-particulate and non-abrasive fluids compatible with pump wet-end
construction component materials. Not for use with water-based fluids. 

• Pumps meet NSF-listed standards including NSF-accepted paint for hot oil cooking applications.

• Pumps can operate bi-directionally (reverse operation should be used intermittently).

• Pressures to 125 PSI with pump heads.

• Pressures to 50 PSI, maximum viscosity of 100 SSU and maximum specific gravity of 1.1 with configured motors.

• Flows to 10.8 GPM.

• Operating temperatures to 375° F.

• Maximum viscosity of 1000 SSU and maximum specific gravity of 1.1 with pump heads and optional motors at 1725 RPM, 

and viscosities up to 100,000 SSU at reduced motor speeds.

• Suction lift capabilities up to 12.3 feet of head.

• Maximum RPM: 1725.

• Stainless steel adjustable pressure relief valve standard.

• Port size: 1/2" and/or 3/4".

• ODP single-phase 56C frame motors with 1/2 or 3/4 HP with thermal overload protection.

• 416 SS helical gear set for handling high viscosity fluids and low oil shear.

• 303 SS drive shaft and idler shaft with carbon graphite bushings and a ball bearing drive.

• Seal flush ports for handling fluids of viscosities greater than 2000 SSU.

• Maximum case pressure of 200 PSI.

Wet-end parts are constructed from cast iron, steel, stainless steel (303, 17-7, 18-8, 416, 15-7MO), carbon, graphite, Type 1
Ni-Resist, and Viton.

Optional Close-Coupled Gear Speed Reducers are available that mount directly between pump and motor to reduce pump speed
for high viscosity or high specific gravity applications (See Appendix 1). 

WARNING:  Do not use to pump flammable or explosive fluids such as gasoline, fuel oil, kerosene, etc. Do not use in flammable and/or
explosive atmospheres. When pumping hazardous or dangerous materials, use only in room or area designated for that purpose. For

your protection, always wear proper clothing, eye protection, etc. in case of any malfunction. For proper handling techniques and cautions, 
contact your chemical supplier, insurance company and local agencies (fire dept., etc.). Failure to comply with this warning could result in 
personal injury and/or property damage.

COMPONENT

 

Summary of Contents for NG11V

Page 1: ...fryer hot oil cooking filtering or waste oil rendering applications This pump can also be used in non NSF hot oil applications with non particulate and non abrasive fluids compatible with pump wet end construction component materials Not for use with water based fluids Pumps meet NSF listed standards including NSF accepted paint for hot oil cooking applications Pumps can operate bi directionally r...

Page 2: ... 3rd 4th Mounting Pump Size Ports AC Motor Options PH Pump Head Only no motor NOTE Not all order code combinations configurations are standard models available from the manufacturer Custom model configura tions may require ordering standard components and or optional parts that will need to be assembled by the customer Manufacturer reserves the right to change model order codes standard models spe...

Page 3: ...ation check motor amps on start up NOTES Consult tables in form L 4082 General Operating and Safety Instructions on HP adders and speed recommendations for high viscosity fluids Pumps with motors are HP rated to handle up to 50 SSU at 50 PSI and specific gravity of 1 0 Max Viscosity 100 SSU at 1725 RPM with the motor supplied Max Input Torque See chart above Max RPM 1725 Max Specific Gravity 1 1 a...

Page 4: ... 4 CI 416 SS 303 SS CG Steel SS Viton 11 CG Carbon Graphite SS Stainless Steel CI Cast Iron ODP Open Drip Proof Standard Shaft Seals have carbon on Type 1 Ni Resist faces and 18 8 SS components Manual or Automatic check motor supplied NPT inlet and outlet in inches Retaining rings on drive and idler shafts are 15 7 MO SS Models are made of steel and stainless steel 17 7 303 and or 18 8 N NO OT TE ...

Page 5: ... right to change dimensions without notification All dimensions in inches unless otherwise specified Dimensions Figure 1 Dimensions Pressure Relief Valve Gear Part Numbers and Dimensions in inches Ref Description Part Outer Gear Hole No Number Diameter Length Diameter Material 1 Gear Helical R H 23291 1 75 0 75 0 625 416 SS Gear Helical L H 23292 1 75 0 75 0 625 416 SS 2 Gear Helical R H 23124 1 7...

Page 6: ... 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 connections are airtight NOTE Assure airtigh...

Page 7: ...l line pressure relief valve and in cases where frequent extended pressure relief valve operation is anticipated a full line external pressure relief valve should be piped in the discharge line and connected either back to the tank or well down stream of the pump suction inlet See Figure 4 9 To convert the pressure relief valve to external relief remove the NPT pipe plug from the pump cover See Fi...

Page 8: ...rds to city water systems Step 1 Locate appropriate city water supply and install anti siphon check valve Step 2 Use appropriate pipe nipple to reduce piping to 1 8 Step 3 Install appropriate needle valve and flowmeter Step 4 Connect piping to one of three available seal flush ports on pump Step 5 Adjust needle valve to achieve desired flow to seal cavity recommend ed 1 to 3 GPH INTERNAL FLUSH Sim...

Page 9: ... Refer to Figure 13 for Reference Numbers and Figures 8 9 for detailed seal and shaft assemblies 1 Pump Removal from Motor a Remove four bolts Ref No 20 from pump body Ref No 19 and gently pull pump assembly from motor b Pump drive coupler does not need to be removed from motor unless motor needs to be replaced If so refer to Pump and Motor Drive Coupler Replacement on page 11 2 Gear and Shaft Ass...

Page 10: ...eat into the seal seat retainer Any scratches dirt or fingerprints on the carbon or Type 1 Ni Resist faces will cause the seal to leak The seal seat is stationary in the pump while the seal on the shaft rotates The car bon face spinning against the Type 1 Ni Resist face provides for the sealing surface d Slide the seal retainer onto the drive shaft holding seal onto the shaft e Slide the drive sha...

Page 11: ...pressure relief valve cover Ref No 34 needs to be inspected for wear on the piston pressure relief valve seat the cover face and the bushing pockets Replace any parts if worn To reassemble reverse the disassembly steps above 6 All pumps must be primed before start up and the seal chamber needs to be filled See Figure 2 PUMP MOTOR OR DRIVE COUPLER REPLACEMENT 1 The pump comes with a spline coupler ...

Page 12: ... Parts Manual 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 SHURflo Distributor or Order Direct Distributors can be found at www shurfloindustrial com Form L 4092 3 10 ...

Page 13: ...f 4432 12841 21307 21313 2 26 2 Washer Fiber 22507 22507 22507 22507 1 27 2 Spring 17 7 SS 4354 4354 4354 4354 1 28 2 Piston Relief Valve 303 SS NA NA NA NA 1 29 Spring Retainer 17 4 SS 21422 21422 21422 21422 1 30 Cap Relief Valve Steel 23416 23416 23416 23416 1 31 Cap Threaded 23415 23415 23415 23415 1 32 Screw Pressure Relief 18 8 SS 23414 23414 23414 23414 1 33 2 O Ring Viton NA NA NA NA 1 34 ...

Page 14: ...ED REDUCER OPTIONS A gear reducer can be directly mounted between a standard pump and motor combination Gear speed reducers are available for applications with high specific gravity or when viscosities are greater than 1000 SSU using a standard 1725 RPM motor The pump relation ship between volume GPM pressure PSI speed RPM viscosity specific gravity and horsepower is shown on performance chart in ...

Page 15: ...SHURflo Operating Instructions Performance Specifications and Parts Manual 15 Notes Form L 4092 3 10 ...

Page 16: ...anty consideration SHURflo reserves the right to request a Material Safety Data sheet from the Purchaser for any pump or product SHURflo deems necessary SHURflo reserves the right to disposition as scrap pumps or products returned which contain unknown substances or to charge for any and all costs incurred for chemical testing and proper disposal of components containing unknown substances SHURflo...

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