1, Overview
A high pressure test pump (also called hydrostatic test pump) is a specialized pressure-generating device used to perform hydrostatic pressure tests on equipment such as valves, pipelines, pressure vessels, wellheads, frac trees, BOPs, and downhole tools.
Its primary functions include:
-Generating high pressure on liquid(water, oil, glycol, etc.)
-Evaluating structural integrity and leak-tightness
-Conducting strength tests and pressure-holding tests
Hydrostatic testing is widely used in :
-Oil & gas industry
-Mechanical manufacturing
-Chemical processing
-Laboratory research
-Firefighting systems
-Industrial pipelines & pressure vessels

2, Types of high pressure test pumps
1) Air-driven hydrostatic test pump
Air-driven liquid booster pump
Features:
-Driven by compressed air
-Output pressure up to 10000-60000psi
-Explosion-proof, ideal for field and hazardous areas
Advantages:
-Safe, no electrical spark
-Fast pressurization
-Fine adjustable pressure
-Suitable for oilfield testing
2) Electric high pressure test pump
Features:
-Electric motor drives a plunger pump
-Medium to ultra-high pressure capability(10000-36000psi)
-Continuous pressure output, stable operation
Advantages:
-High efficiency
-Suitable for production lines and laboratories
-Automated control options(PLC/touch panel)

3) Manual test pump
Features:
-Hand-operated
-Pressure capability up to 10000-15000psi
-Compact and portable
Applications
-Instrument calibration
-Small valves and fittings
-Field inspection
3, System components
A typical hydrostatic test pump system includes:
-Reservoir tank
-Low-pressure filling pump
-High-pressure booster pump
-Pressure gauge or digital pressure transducer
-Control panel(manual/electric/PLC)
-Safety valve & relief valve
-High-pressure hoses and fittings
-Test manifold/connection block
4, Oil & gas application
-Wellhead/Christmas tree pressure testing
-Frac tree and fracturing manifold testing
-BOP(blowout preventer) pressure testing
-Downhole tools(packers, plugs, sleeves) testing
-High-pressure flowlines, choke & kill lines
-Pipeline strength and leak testing
