Test bench for shut off valves DN 50...400 mm (2...16″)


  • shell test acc. to API 598, API 6D, ISO 5208 etc.;
  • seat leakage test (cavities A to B, B to A) acc. to API 598, API 6D, ISO 5208 etc.;
  • backseat test acc. to API 598, API 6D, ISO 5208 etc.;
  • DBB/DIB test acc. to API 598, API 6D;
  • control valve seat leakage test, acc. to ANSI FCI 70.2, IEC 60534-4, EN 1349 etc.

Tested items

  • gate valves; 
  • ball valves;
  • globe valves;
  • check valves;
  • butterfly gates;
  • plug valves.

Tested unit connection type

  • flanged RF, FF, RTJ (according to ASME B 16.5, ASME 16.47 etc.);
  • BW (according to ASME B 16.25, etc.);
  • flangeless (lug, wafer type).

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Maximum clamping force, t


Min./max. diameter of the clamped flange, mm (″)

160/670 (6/26)

Maximum thickness of the clamped flange, mm (″)

110 (4)

Min./max. distance between the moving and stationary 
cross-heads, mm (″)

180/800 (7/31)

Distance between the columns, mm (″)

1115 (44)

Power supply, V/Hz


Motor power, kW


Overall dimensions (LхWхH), mm (″)

2000x2060x3370 (79х81х132)

Weight, kg (bench/set of replacement parts)



  • Clamping of tested valve provided by hydraulic cylinder, optionally test bench can be equipped with proportional clamping control system, which excluding axial compression applied to the valve body during clamping by hydraulic cylinder, during high pressure testing.* 
  • The two-sided gate sealing during tests do not require the tested valve rearrangement, which significantly reduces the test time. 
  • The bench is equipped with the water-collection tray.* 
  • The test preparation time is significantly reduced by using the high-pressure fast coupling hoses. 
  • The bench is quickly adjusted to face-to-face dimensions of valve by using the electrically driven cross-head. 
  • The patented design of the self-sealing adapters exclude axial compression during the tests, which ensures the test reliability, protects the valves against deformation, and extends the valve life.* 
  • All water-wetted parts are corrosion-proof. 
  • The bench can be equipped with replaceable sealing adapters.* 
  • Increased-diameter hoses reduce the time of the valve filling with the test medium. 
  • Tiltable upper cross-head is used to simplify the valve installation procedure before testing. The test preparation time is significantly reduced by using the high-pressure quick-connect hoses. 
  • Fast clamping and centering of the tested valve is ensured due to synchronized travel of the clamps. 
  • The tested valve clamping technique is used to ensure visual control of leakage points. 
  • It is possible to conduct the testing for gate tightness of flanged valves with vertical and horizontal axes position of the main branch pipes with provision of visual inspection of the valve's gate.

* Upon customer request.