Obsolete 4SF Direct Drive Plunger Pump
Industrial Duty, Long Lasting, Dependable Pumps
Model: 4SF50GS1
This is a triplex [three plunger rods] positive displacement, reciprocating, plunger pump, constructed of a brass manifold, 304SS valve assemblies, solid ceramic plungers and standard NBR [Buna-N] seals and o-rings. This is a hollow-shafted pump designed to bolt directly to a gas engine with a 1" shaft.
Technical Specifications
| Max Flow | 5 gpm / 18.9 lpm |
| Max Pressure | 3000 |
| Inlet Port Size | 1/2" NPT(F) |
| Discharge Port Size | 3/8" NPT(M) |
| RPM | 3200 |
| Drive Type(s) | Direct |
| Material | Brass |
Product Information
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- Tech Bulletin 002 - Inlet Pressure vs. Water Temperature
- Tech Bulletin 036 - Identifying Your Pump
- Tech Bulletin 043 - Servicing the Low and High Pressure Seals
- Tech Bulletin 055 - Removing Pump from Engine or Motor
- Tech Bulletin 057 - Set Screw and Hardened Key
- Tech Bulletin 061 - Throttle Controller Installation & Adjustment
- Tech Bulletin 065 - Higher Performance Ratings
- Tech Bulletin 074 - Torque Chart
- Tech Bulletin 075 - Sleeved Plunger Rod
- Tech Bulletin 083 - Winterizing a Pump
- Tech Bulletin 134 - Piston and Plunger Pump Crankcase Capacities