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Medium temperature: -20°C ~ +180°C
Ambient temperature: -20°C ~ +60°C
Nominal pressure: 0 ~ 1.6 Mpa
Control medium: Gas, Air
Air pressure: 0.3 ~ 0.8 MPa
Specification: DN25 - DN250
Valve body material: CF8, CF8M
Valve seat material: Carbide, PTFE
Stem material: 304
Sealing ring material: NBR

Model | d | D | L | L1 | A | H | H1 | Actuator |
DN25 | 38 | 68 | 50 | 30 | 163 | 248 | 81 | AT63 |
DN32 | 45 | 76 | 60 | 35 | 214 | 270 | 88 | AT75 |
DN40 | 50 | 84 | 60 | 35 | 214 | 275 | 90 | AT75 |
DN50 | 62 | 100 | 75 | 43 | 252 | 295 | 93 | AT88 |
DN65 | 73 | 118 | 100 | 50 | 270 | 322 | 108 | AT100 |
DN80 | 90 | 132 | 100 | 57 | 316 | 362 | 123 | AT115 |
DN100 | 115 | 158 | 115 | 65 | 354 | 387 | 138 | AT125 |
DN125 | 134 | 184 | 129 | 78 | 418 | 423 | 148 | AT145 |
DN150 | 164 | 216 | 160 | 95 | 450 | 475 | 170 | AT160 |
DN200 | 206 | 268 | 200 | 120 | 518 | 535 | 200 | AT190 |
DN250 | 260 | 326 | 240 | 148 | 530 | 615 | 240 | AT210 |
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.
