Gardner Denver PZ-9 Pump Package

Powered by Caterpillar 398 Engine

Pump Information

General

• Manufacturer: Gardner Denver

• Pump Model: PZ-9

• Pump Type: Triplex reciprocating plunger pump

• Service: Well service / cementing / pressure pumping

• Duty: Continuous oilfield service

Pump Performance

(Actual performance depends on liner size and operating speed)

• Maximum Pressure: up to 5,000 psi

• Maximum Flow: up to 9 BPM (~378 GPM)

• Stroke Length: 4.5 in

• Speed Range: 100 – 300 SPM

• Rated Rod Load: ~8,500 – 9,000 lb

Typical Capacities (Approximate)

Pump Construction

• Fluid End: Forged steel

• Plungers: Tungsten carbide

• Valves: Oilfield 3-web / 4-web style

• Packing: Chevron / V-type

• Lubrication: Pressure-fed power end

Engine Information

General

• Manufacturer: Caterpillar

• Engine Model: CAT 398

• Configuration: V-8, 4-stroke diesel

• Aspiration: Turbocharged & aftercooled

• Fuel Type: Diesel

• Duty Rating: Continuous heavy-duty oilfield service

Engine Performance

(Typical industrial ratings)

• Rated Power: 900 – 1,100 HP

• Rated Speed: 1,200 – 1,600 RPM

• Peak Torque: High torque at low RPM (pump-drive optimized)

• Torque Rise: ~25%

Engine Specifications

• Displacement: ~2,100 in³ (≈34.4 L)

• Fuel System: Mechanical unit injection

• Governor: Mechanical

• Cooling: Radiator or remote cooling package

• Lubrication: Forced pressure lubrication

• Oil Capacity: ~30 – 35 gal

• Electrical System: 24 VDC

• Starting: Electric or air start

Drive & Package Configuration

• Gearbox or torque-converter drive

• Flexible coupling

• Skid or truck-mounted package

• Radiator cooling system

• Pulsation dampener

• Instrument panel with safety shutdowns

  • Low oil pressure

  • High coolant temperature

  • Overspeed

Typical Applications

• Well servicing

• Cementing

• Acidizing

• Pressure pumping

• Water injection