Specifications
The drilling service pump has a maximum input of 750 BHP (559 kW) and can reach a maximum RPM of 145. It features a stroke length of 8 inches (203 mm) and a piston load capacity of 76,800 lbs. (34,836 kg). The average pump weight is 19,500 lbs. (8,850 kg) with a gear ratio of 4.5:1.

Piston Cylinder Displacement
The displacement per revolution and per minute varies with the piston diameter, ranging from 4.00 gallons (15.14 liters) per revolution for a 7-inch diameter to 1.31 gallons (4.96 liters) for a 4-inch diameter. The maximum PSI also varies, with a 7-inch diameter reaching 1,996 PSI and a 4-inch diameter reaching 5,000 PSI.

Weight and Efficiency
The complete pump with a large steel skid weighs 22,500 pounds. Ratings are based on 90% mechanical efficiency and 100% volumetric efficiency.

Service Centers
The document lists several service centers across the United States, including locations in Quincy, IL; Oklahoma City, OK; Tulsa, OK; Fort Worth, TX; and Odessa, TX.

Standard Features
The pump includes a nodular iron power frame, double-row-spherical roller bearings, heat-treated alloy steel main gears, replaceable bronze crosshead slides, and a complete piston washing and lubrication system.

Optional Equipment
Optional features include a steel skid, centrifugal suction charging pump, rubber valve inserts, suction and/or discharge dampeners, oil heat exchanger, and custom packaging options.

Installation Note
It is essential that all installations include a pressure relief valve in the discharge line near the pump.