Plunger Pump Parts

Power End Specifications | Liquid End Specifications

POWER END SPECIFICATIONS:

Power Frame - One-piece, close grain, cast iron casting with heavy wall sections, well ribbed to insure rigid construction and designed to fully enclose all working parts.

Gears - Herringbone construction. Main gear is heat treated high grade ductile iron. Pinion gear is cut from forged alloy steel and hardened.

Crankshaft - Heavy center section for mounting main gear. Large diameter crank pins for optimum load capacity.

Pinion Shaft - Machined and precision ground from heat treated alloy carbon steel.

Bearings - Heavy duty tapered roller bearings do crankshaft. Self- contained double row ball bearings or single row straight roller bearings on pinion shaft to permit free floating of shaft for self-centering of gears.

Connecting Rods - Heavy cross section castings with renewable babbitt lined steel shell bearings in crank end; bronze bushings in crosshead end.

Crossheads - Cylindrical-type, one-piece, cast iron castings. Crosshead pins are case hardened and precision ground steel.

Lubrication - All power end parts, crank & pinion shafts including gears, crossheads, connecting rod bearings, crankshaft bearings, and pinion shaft bearings are lubricated by a field proven crankcase reservoir splash-gravity feed system.

Stuffing Boxes - All duplex pumps are furnished with replaceable type cast iron stuffing boxes.

Packing - Standard packing is a set of lip-type or square packing rings depending upon the application.

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LIQUID END SPECIFICATIONS

Liquid End Body - Standard materials available are ductile iron and steel castings. Liquid ends can be trimmed out for pumping various liquids.

Cylinder Heads - Heavy section steel bolt-on type with O-ring gaskets.

Valve Covers - Heavy section steel bolt-on type with O-ring gaskets.

Liners - All pumps are available with interchangeable type liners. Standard materials include cast iron, file hard steel and special corrosion resistant liners.

Piston Rods - Various materials are available for straight or API taper rods. Some of these are; steel, stainless steel, file hard steel, and chrome plated steel.

Pistons - Cast iron bodies fitted with various types of rings are available. Slush service pistons can also be furnished.

Valves - Valves and seats are available as follows; Hardened and ground steel wing guided and bronze wing guided. Stainless steel disc valves with stainless steel seats. Various styles of slush type valves are also available.

Stuffing Boxes - All duplex pumps are furnished with replaceable type boxes which are available in cast iron, steel and nickel aluminum bronze.

Packing - Standard packing is a set of lip-type or square packing rings. Other packings can be furnished for special applications.

Stuffing Box Lubrication - Optional, depending on the application. Furnished by use of a regulated flow of oil from a force feed lubricator mounted on the pump, with a separate oil line to each stuffing box and V-belt driven.

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