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SERVA QPA-2500 Frac Pump

SERVA QPA-2500 Frac Pump The QPA-2500 is a reciprocating, positive displacement, horizontal single-acting, Quintuplex plunger pump which is rated at 2,500 brake horsepower input maximum. The pump is designed for duty well service applications such as acidizing, fracturing, well killing, etc.

The heavy-duty QPA-2500 pump consists of a power end assembly and a fluid end assembly. Four different fluid cylinders are available to accommodate several plunger sizes for a variety of pressures and volumes.


  • Rated maximum brake horsepower 2,500 bhp (1,862 Kw)
  • Maximum rod load 192,325 lbs (87,331.3 kg)
  • Stroke length 8" (203.2 mm)
  • Gear ratio 6.353:1
  • Length 85" (2,160 mm)
  • Width 74" (1,880 mm)
  • Height 43" (1,092 mm)
  • Weight dry (approximate) 15,000 lbs (6,804 kg)
Product Highlights
  • Housing weldment made from T1 which has the strength of two times the normal structural steel
  • Crankshaft is machined from a heat-treated steel forging
  • Precision-ground journals supported by six heavy-duty cylindrical main roller bearings
  • Bull gears: Double opposing helical type gears. High horsepower AGMA #8 quality. Precision machined from high-strength alloy steel castings. Induction-hardened gear teeth. Rigidly supported on both ends by crankshaft extension
  • Pinion shaft: Double opposing helical-type gears integrally machined on heat-treated alloy steel shaft with high-horsepower AGMA #8 qualities. Induction hardened gear teeth supported by two (2) heavy-duty spherical roller bearings
  • Gear ratio: 6.353:1 ratio allows direct drive from a 1,900 to 2,100 RPM diesel engine / power shift transmission without over-speeding the pump
  • Pony rods: Replaceable type w/clamp connection at plunger end. Machined from steel casting. Precision-ground hard overlay (60 HRC) seal surface
  • Stay rods: Precision-machined from high-strength heat-treated alloy steel
  • Connecting rods: Precision-machined from high-strength, ion nitrided steel forgings
  • Crossheads: Precision-machined from high-strength steel casting
  • Crosshead guides: Replaceable, full-cylindrical design. Precision-machined from bronze casting
  • Wrist pins: Precision-machined from heat-treated steel
  • Lubrication: Equipped for pressurized lubrication to all moving parts. “Dry sump” type system