High Pressure Plunger Pumps For each PREEVOL Pump, the POWER END is engineered out of selected materials and it is designed for the rated horse - powers.

Power frame
Power frame is totally enclosed. Dust and oil tight enclosure elimination contamination from the outside elements.
Reduced maintenance cost and increased reliability.

Connecting Rods
Accurately machined and honed for longer life I-section design for rigidity and light weight. Split-bolted marine type crank-pin end for easy assembly and disassembly. Refle-drilled oil passage.

Cross Head
Fully cylindrical crossheads and guides ultilize maximum possible bearing area. Less weat thru greater disbursement of bearing loads. Assures greater reliability with low replacement costs.

Crank Shaft
Forged hardened and ground crank shaft provides unmatched strength and surface hardness for long life.

Lubrication
Splash type lubrication system for all power and bearing contained within sealed chamber.

Bearning
Antifriction steel-tapered roller bearing provides extended bearing life.

Lubrication
Splash type lubrication system for all power and bearing contained within sealed chamber.

Plunger
The triplex plunger pump performs smoothly and quietly. The natural lubricity of the pumped fluid cools and lubricity the seals. The hardened, polished ceramic coated plunger provide extremely durable wear surfaces, abrasion resistance and maximum seal life.

Gland plucking
The stuffing box assemblies are individually bolted to the fluid cylinder for easy accessibility, for disassembly and assembly. Reduced maintenance costs and downtime.

Valve Assembly
All Valve assemblies are completely independent of and are clamped between manifolds and fluid cylinder. Easy valve inspection and replacement without any clean-up or rematching of mating components.