8 Frame Block-Style Plunger Pump
Industrial Duty, Long Lasting, Dependable Pumps
Model: 781K
This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with 316 stainless steel block-style manifolds, 316 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.
The "K" indicates the pump is built with a unique flushed inlet manifold that permits an external liquid to provide added cooling for high-temperature fluids and lubrication for low-lubricity liquids like DI (deionized) water. When used with the 990663 Flushing Assembly, the package offers a self-contained fluid source for pumping through the flushed manifold.
The 1750 RPM permits multiple drive options, including direct drive with a bell housing and flexible coupling, clutch or belt drive.
Technical Specifications
Max Flow | 4.7 gpm / 17.8 lpm |
Max Pressure | 5000 |
Inlet Port Size | 1/2" NPT(F) |
Discharge Port Size | 3/8" NPT(F) |
RPM | 1750 |
Drive Type(s) | Belt, Clutch, Flexible Coupling and Bellhousing |
Material | 316 Stainless Steel |
Product Information
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- Tech Bulletin 123 - Crankcase Threaded Side Holes
- Tech Bulletin 002 - Inlet Pressure vs. Water Temperature
- Tech Bulletin 035 - Servicing Crankcase Section - Roller Bearing Models
- Tech Bulletin 036 - Identifying Your Pump
- Tech Bulletin 043 - Servicing the Low and High Pressure Seals
- Tech Bulletin 053 - Liquid Gasket for Seal and Valve Servicing
- Tech Bulletin 074 - Torque Chart
- Tech Bulletin 083 - Winterizing a Pump
- Tech Bulletin 095 - Galling Prevention
- Tech Bulletin 105 - Seal Retainer Assemblies
- Tech Bulletin 106 - Crankcase and Cover Change
- Tech Bulletin 118 - Crankcase Paint Change
- Tech Bulletin 121 - 7 and 8 Frame Plunger Pump Bell Housing Mounting
- Tech Bulletin 134 - Piston and Plunger Pump Crankcase Capacities