Nominal Diameter:DN80-DN3000 Pressure Class: 150LB to 1500LB
Design Standards API 609, EN 593, ISO 5752, MSS SP-67
Connection Standard ASME B16.5 / B16.47, EN 1092-2, JIS B2220
APPLICABLE TEMPERATURE:-29℃-425℃ Applicable Media：Water, Oil, Steam, Gas, Acid, Alkali, Etc.
Material for Main Parts：BODY:Cast iron,Stainless steel,Cr.Mo.Steel,alloy steel DISC:Cast iron,Stainless steel,Steel,alloy steel SEALING RING:Stainless steel and high temperature resistant asbestos composed of multiple layers
STEM: 2Cr13, 1Cr13 stainless steel, chromium steel, Cr-Mo steel PACKING:Flexible Graphite

1:Resilient Metal Seal Ring "The elastic characteristics of the composite metal seal ring provide the valve with zero-leakage performance."

2:Torque-Seated Sealing "Torque-seated design ensures continuous, bi-directional zero-leakage performance."

3:Non-Friction Quarter-Turn Operation "The quarter-turn, friction-free operation is achieved through a unique triple-offset (or double-offset) design, eliminating friction between the seat and seal ring during the 90-degree rotation."

4:Integrated Hardfaced Seat "The Stellite (STL) integral hardfaced seat satisfies demanding working conditions, offering an extended service life and easy maintenance."

5:Integral Cast / Welded Body & Fire-Safe Design "The integral cast (or welded plate) body complies with ISO 5752, ASME B16.10, and API 609 face-to-face dimensions, serving as a flexible and easy-to-install replacement for high-performance butterfly valves and other valve types. Furthermore, its all-metal construction combined with zero-leakage capability makes the valve inherently fire-safe."

6:Anti-Blowout Stem "The anti-blowout stem design ensures safe and reliable operation, fully complying with API 609 standards."

7:Stem Position Indicator & Top Flange "The visual position indicator on the stem and the top mounting flange facilitate clear identification of the disc position."