Portable measuring systems


  • D-14-EP is designed for testing of all types of spring operated Pressure Safety Valves in their operational pipeline position without plant shut-down.

Tested items

  • spring-loaded safety valves with manual override device. 

Complete set

  • spool travelingmechanism; 
  • control unit ; 
  • remote control; 
  • pressure sensors; 
  • force sensors; 
  • extension cables; 
  • accessory kit. 



Spool traveling mechanism actuator

hydraulic actuator

Maximum effort of spool traveling mechanism, kN


Availability of explosion-proof protection


Maximum measurable pressure, Bar


Reduced pressure measurement error,%


Maximum measured effort, kN


Reduced efforts measurement error,%


Measuring stroke of the valve spool, mm

from 0 to 15

Operating temperature, ºС


Overall dimensions (LxWxH), mm (″):

- spool traveling mechanism;

600х180х205 (23x7x8)

- control unit;

455х210х480 (18x8x19)

- remote control.

300х250х70 (12x10x2)

Weight, kg (without a set of replacement parts)



  • Essential when working with flangeless valves (allows testing of spring operated safety valve directly on their operational pipeline position without plant shut-down). 
  • High accuracy of test results due to use of four interchangeable pressure sensors with accuracy class of 0.25% (with ranges of 16, 40, 100 and 250 Bar) as well as two interchangeable force sensors with class of accuracy 0.03% (with ranges of 0.2 and 2.0 ton). 
  • Small device weight makes it comfortable to work in remote places. 
  • Does not require connection to any sources of energy during testing. 
  • Universal mounting bracket simplify installation of the unit. 
  • Allows testing of Pressure Safety Valves on the pipeline under pressure and without it.