CENTRIFUGAL PUMP/PLUNGER PUMP
As a famous petroleum equipment supplier, SERVA developsthe technology of not only the equipment but also the plunger pump.
Now SJS can product four type of the plunger pump, which are the mainstream pump in the cementing, fracture, sanding, & acid well service.
SJS pump is a famous pump, which the performance and the quality is in the highest flight in the world and almost same as Hallibur­ton, SPM, GD.
SJS can product 400 sets plunger pump per one year. And most of them is used in overseas.
SJS is a main manufacture base in the world.


The QPH2400 is a newly designed quintuplex version of the TPH400 plunger pump. The patented technology of fluid end design reduces the cost of spare parts. This pump is designed for normal well pumping service, such as acidizing, large displacement fracturing, well killing etc.

Gear train: steel worm and bronze ring 
Crankshaft: forged steel, four main bearings
Connecting rods: forged aluminum, split caps and insert bearings
Crossheads: cast steel
Pump power frame: high-strength steel weldment
Bearing type: roller
Oil system: oil pump driven by worm (std) or remote
Oil filter: replaceable elements and magnetic strainer
Oil capacity: 22 USG
Oil pressure: 80 to 100 psi