High Pressure Test Units

Windlass manufactures High Pressure Test Units from 5,000 to 30,000 PSI working pressure. These units can be used on site for hydrostatic testing of any product including BOP stacks, kill & choke lines and wellheads.Available Styles:

  • Portable Trolley Mounted Test Units
  • Skid Mounted Test Units (without tank)
  • Skid Mounted Self Contained Test Units (with tank)
  • Custom Test Units
  • BOP Control Unit Mounted Test Units


All High Pressure Test Units are equipped with a nameplate specifying the model number. This number contains the mounting arrangement, maximum pressure rating, type of pressure readout and series identification.

PORTABLE TROLLEY MOUNTED TEST UNITSThese Test Units consist of a single pump mounted on a frame and wheel assembly. Inflatable wheels allow these Test Units to be easily transported to and from the test site. Pressure ratings are limited to 5,000 and 6,000 PSI due to weight considerations
SKID MOUNTED TEST UNITS (WITHOUT TANK)These Test Units provide versatile service in all static, high pressure testing applications. Equipment can be safely tested up to 30,000 PSI with its compact easy to operate design. They include high pressure air operated pumps, valves and fittings to ensure trouble-free operation. They also include all necessary controls and safety devices as well as connections for the air and fluid supply lines.
SKID MOUNTED TEST UNITS (WITH TANK)Self Contained, Tank Mounted Test Units consist of the basic skid-mount with a 50 gallon reservoir and 1/2 inch four-way control valve. This added feature provides convenient control for testing valves. Tests up to 30,000 PSI can be conducted quickly and safely. Using a separate circuit, high volume and low pressure can be created to test valves or the open and close operation of a preventer
CUSTOM TEST UNITSThese Test Units are designed according to customer requirements. These unique designs can include control panels, ultra high pressure testing and such customizations based on customer needs
BOP CONTROL UNIT MOUNTED TEST UNITSThis style of Test Unit offers the convenience of being incorporated into the air operated pump assembly of the BOP control system. These units utilize the discharge of one of the BOP control systems pumps as the supply to the high pressure pump. The suction line is modified to include a supply connection for testing



To be used in conjunction with pressure gauges to provide a documented test record of the equipment being tested. They are available in models ranging from 15,000 to 30,000 PSI with options for mechanical spring or battery drive and rotation of 96 min., 24 hr. or 8 day

Chart Recorders are available in two styles:

  • Skid Mounted
  • Stand Mounted

Main features include:

  • 15,000, 20,000 and 30,000 PSI models
  • Clock rotation of 96 minutes, 24 hrs. or 8 days
  • Accuracy +/- 1.0% full scale
  • 12” chart
  • Disposable pens


A variety of Test Hoses are available for use in connecting Test Units to the equipment being tested

Main features include:

  • 5,000 to 30,000 PSI working pressure
  • 10 to 100 feet lengths. Custom lengths also available
  • 10,000 PSI and over are wire braided for increased safety
  • Quick disconnect couplings for fast connections