Piston Type Axial Flow Regulating Valve
PN10/PN16/PN25/PN40
DN150~DN2200mm
Ductile Iron, WCB, S.S.
Piston Type Axial Flow Regulating Valve Descriptions
Piston type axial flow regulating valve is mainly made up of valve body, piston, crank, connecting pod, energy dissipator, stem and seat. It’s metal and elastic double sealing structure, which is axisymmetric design. In this case that it can avoid throttling, eliminate cavitation or vibration, in order to prevent the piping from damage. The piston type axial flow regulating valve is normally applicable to natural gas piping, coal gas piping, long distance water distribution piping line, water treatment plant, etc. Flowspec Luokai can manufacture and supply the piston type axial flow regulating valve with sizes of 2”~80” (DN50~DN2000mm).
1. FEATURES
- More reasonable structure design
- High pressure loss energy dissipation
- Smaller flow resistance
- Excellent eliminate cavitation
- Reliable sealing
3. STANDARDS
- Design & manufacturing: manufacturer’s standard
- Face to face: manufacturer’s standard
- Flanged ends: GB/T17241.6-2008 / BS4504 / ISO7005 / EN1092-2 / DIN2501
- Inspection & testing: GB/T13927-2008
2. TECHNICAL SPECIFICATIONS
- PN10/PN16/PN25/PN40
- Size: 2”~80” (DN50~DN2000mm)
- Materials: ductile iron (GGG50), carbon steel (A216 WCB), stainless steel 304(CF8), stainless steel 316(CF8M)
- Applicable medium: natural gas, coal gas, water
- Applicable temperature: -20℃~+220℃
- Working pressure: 10bar, 16bar, 25bar, 40bar
4. APPLICATIONS
- Water treatment plant
- Natural gas piping
- Coal gas piping
- Water project
- Pump station
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


