Pressure Measurement & Control

Pressure Check Valve Code 103

The Conflow Code 103M - Pressure Check Valve provides a tapping point to enable the checking of pressure at a particular point in a system, without the need for a pressure gauge to be permanently located at each point.

The pressure gauge is only connected at the time a pressure reading is required. The Conflow Code 103NS and NSA Pressure Check Valve swivel adaptors are used in conjunction with a pressure gauge to enable readings to be taken at the tapping point.

The action of screwing the adaptor in to the Code 103M Pressure Check Valve, causes a probe to push the valve ball off its seat and allows system fluid to enter the pressure gauge to register a pressure reading, ensuring operator safety. Unscrewing the adaptor allows the ball to reseat thus isolating the system from the gauge again.

Typical Applications

  • Checking hydraulic pressure on each leg and ram on powered roof supports on coal faces
  • Invaluable on applications where permanent gauges would get damaged.


  • 3/8" BSP fitting
  • Maximum working pressure 690 bar
  • Enables periodical checks of on-line pressure without the need for any fixed gauges
  • No interruption of the normal circuit

The information on this data sheet is accurate to the best of Conflow’s knowledge, however we reserve the right to alter the product specification at any time. For any specific updated detail, please contact us.

Download Spec Sheet