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Medium Temperature: -20°C to +180°C
Ambient Temperature: -20°C to +60°C
Nominal Pressure: 1.6 MPa
Control Medium: Gas, Air
Air Pressure: 0.3 to 0.8 MPa
Specification: DN15 to DN80
Valve Body Material: CF8 / CF8M
Seat Material: PTFE
Stem Material: 304 / 316L
Sealing Ring Material: NBR

(Customizable according to user requirements)
Model | L | d | C | D | A | H | E | Actuator | Waterproof Hammer |
DN15 / Φ19 | 130 | 16 | 20 | 50.5 | 180 | 160 | 64 | Φ50 | Φ50 |
DN20 / Φ25 | 130 | 21 | 25 | 50.5 | 185 | 160 | 64 | Φ50 | Φ50 |
DN25 / Φ32 | 140 | 26 | 31 | 50.5 | 200/230 | 170/205 | 64/80 | Φ50/Φ63 | Φ63 |
DN32 / Φ38 | 150 | 33 | 39 | 50.5 | 240 | 210 | 80 | Φ63 | Φ80 |
DN40 / Φ45 | 180 | 41 | 46 | 64 | 250 | 215 | 80 | Φ63 | Φ80 |
DN40 / Φ51 | 180 | 46 | 52 | 64 | 250 | 215 | 80 | Φ63/Φ80 | Φ80 |
DN50 / Φ57 | 195 | 50 | 55 | 64 | 260/280 | 220/230 | 80/100 | Φ63/Φ80 | Φ100 |
DN50 / Φ63 | 195 | 58 | 64 | 77.5 | 285 | 235 | 100 | Φ80 | Φ100 |
DN65 / Φ76 | 230 | 70 | 77 | 91 | 320 | 270 | 100 | Φ80 | Φ100 |
DN80 / Φ89 | 250 | 83 | 90 | 106 | 360 | 310 | 126 | Φ100 | Φ125 |
Note: All dimensions are in millimeters (mm). Values separated by a slash (e.g., 200/230, 64/80) indicate alternative specifications depending on configuration.
Deeply rooted in sealing, leading the industry in valve fit: Founded in 2002 as "Lianyi Seals Factory," we have specialized in the production of PTFE seals for valves for over 20 years. In 2012, we expanded into full-service valve manufacturing. Leveraging years of accumulated sealing expertise, we achieve valve seal precision and valve body fit far exceeding industry standards.
Brass base material, ensuring quality from the source: 100% of the brass raw material used in our valves complies with national standards, strictly avoiding impurities. This core material ensures long-term stable operation of the valves, eliminating safety hazards and performance failures caused by base material issues.
Full-service chain, backed by over a decade of OEM/ODM experience: With over a decade of OEM and ODM experience, we offer a comprehensive service offering from product design and R&D to production and delivery. We precisely match customer needs and efficiently support the entire process, from solution implementation to delivery.
