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
Form L-4089 (2/17)
SHURflo 316 Stainless Steel Rotary
Close-Coupled External Gear Pumps
Description
SHURflo self-priming, positive displacement, external rotary gear pumps operate bi-directionally (reversible) and provide a
nearly pulseless flow for a wide range of industrial, marine, agricultural, and commercial chemical-duty applications. Mounted
directly to NEMA frame AC Totally-Enclosed Fan-Cooled (TEFC) motors using an easy-installation package, or as pump heads
only for custom installations. Single-phase motors are thermally overload protected; 3-phase motors are not. Ryton PPS
(Polyphenylene Sulfide) spur gears provide quiet operation and chemical compatibility with no metal-to-metal contact.
Pumps can operate in a temperature range of 32° to 280° F.
Quality features include a keyed 316 stainless steel shaft supported by a ball bearing and carbon graphite bushings. Wet-end
parts are constructed of 316 stainless steel, Ryton PPS, graphite, graphoil, carbon, ceramic, and Viton or Teflon
®
.
Uses: For use with non-particulate and non-abrasive fluids compatible with pump wet-end construction component materials.
• Capacities up to 24.8 GPM.
• Maximum pressure to 125 PSI and working casing pressure to 200 PSI.
• Max. RPM: 1725.
• Suction lift to 19.5 ft.
• Temperature ranges from 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 pump fluid viscosities and specific gravity up to 100,000 SSU. (Maximum torque loads are found in the
performance chart.)
• Viton or Teflon
®
mechanical seals (standard) with carbon on ceramic faces with engineered flush chamber for internal or
external flush to handle viscosities beyond 2000 SSU.
• Pumps can operate bi-directionally (reversible).
REPAIR SEALS AND OPTIONS – Standard seals are Viton or Teflon
®
(Buna-N is optional) with carbon on ceramic faces. Seals can be
located in the repair parts list pages in the owner’s manual. When switching between standard and optional mechanical seals, be
sure to order the matching o-rings in the same material. These can be found in the repair parts list pages of this manual.
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 2).
NOTE: This series of gear pumps is also available as pedestal models for custom applications.
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 a 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 tech-
niques and cautions, contact your chemical supplier, insurance company and local agencies (fire dept., etc.). Failure to comply with this warn-
ing could result in personal injury and/or property damage.
Viton Models GMSV2A, GMSV4A, GMSV6C, GMSV2A3T, GMSV2A33T,
GMSV4A5T, GMSV4A53T, GMSV6C7T and GMSV6C73T
Teflon
®
Models GMST2A, GMST4A, GMST6C, GMST2A3T, GMST2A33T,
GMST4A5T, GMST4A53T, GMST6C7T and GMST6C73T
Refer to form L-4082 for General Operating and Safety Instructions and Applicable Warranty.
