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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.
1. FEATURES
- 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.
3. STANDARDS
- 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
2. TECHNICAL SPECIFICATIONS
- 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)
4. APPLICATIONS
- Thermal power plant
- Petroleum
- Chemical industry
- Pharmacy
- Chemical fertilizer
- Hydropower station
- Textile
- Printing & dyeing
- Oil & gas
Why Choose Flowspec Luokai
45+ Years Experience
Founded in 1978, manufacturing industrial valves for over four decades with proven reliability worldwide.
Global Certifications
ISO 9001, CE/PED, WRAS, FM, UL, API approved — compliant with international quality and safety standards.
OEM Custom Solutions
Flexible design and manufacturing per your specifications — material, size, pressure, actuation tailored to project needs.
Worldwide Delivery
Exported to 5 continents — North & South America, Europe, Middle East, Southeast Asia, and Africa.
Our Service Promise
Strict Quality Control
Every valve tested to API 598, EN 12266 before shipment
Timely Global Delivery
Reliable logistics to 5 continents with secure packaging
OEM & Custom Design
Tailored material, size, pressure and actuation to your specs
Dedicated After-Sales
Technical support and service throughout product lifecycle