Self Operated Pressure Control Valve

Steel, S.S.304, S.S.316 

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Self Operated Pressure Control Valve Product Information

Self operated pressure control valve is one type of regulating valve that does not need any external engergy but the medium energy to acheive in the valve automatic regulating on the pressure, temperature, flow or level, and then achieve the results of simplifying equipment and energy saving. Its working principle is controling the valve pressure, differential pressure or flow by changing the valve disc flow area with the valve actuator. Flowspec Luokai can manufacture and supply the self operated pressure control valve according to standard of GB/T 12221-2005 with sizes of 1/2″ ~ 12″ (DN15~DN300mm). Contact us today. Get the better prices. 30 years of experience. Great after-sales service.


  • Do not need any external energy to achieve in automatic adjustment.
  • Simplify equipment and save energy.
  • Compact structure, fewer parts, light weight.
  • Excellent regulation performance, accurate flow coefficient.


  • Design & manufacturing: GB/T 12221-2005
  • Flanged ends: GB/T 9113.1-2000
  • Face to face: GB/T 12221-2005
  • Inspection & testing: GB/T 13927-2000


  • PN1.6~PN6.4Mpa, Class 150LB, 300LB
  • Size: 1/2″ ~ 12″ (DN15~DN300mm)
  • Materials: carbon steel (A216 WCB), stainless steel 304(CF8), stainless steel 316(CF8M)
  • Adjusting accuracy: ±5% ~ 10%
  • Applicable medium: water, oil, gas, corrosive liquids
  • Applicable temperature: -17℃~+230℃ (higher temperature is available upon request)


  • Thermal power plant
  • Petroleum
  • Chemical industry
  • Pharmacy
  • Chemical fertilizer
  • Hydropower station
  • Textile
  • Printing & dyeing
  • Oil & gas

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