keystone valve manufacturer, keystone valves distributor, keystone valve factory--China Deland Valves Manufactring

Set up in 1995, China Deland Valves Manufactring Co.,Ltd. is one of the leading keystone valve manufacturer, supplier and distributor in Yongjia County of Zhejiang Province. We manufacture all keystone valves strictly conforming to the API, JIS, ANSI, BS, GB, NF and DIN standards. Our keystone valves are available to users on request and are used for municipal works, petroleum, chemical industry, power station, metallurgy, national defense, and scientific research fields. We can supply custom, used, discount, cheap keystone valve and accessory to USA, UK, Canda, Amercia, Europe, Germany, France, Japan, India, Iran, Russia, Poland and more than 30 countries in the world.

Where you need a quarter turn valve to control or isolate high pressure and extreme temperatures we can offer you solutions such as the Vanessa zero leakage, K-Lok available in resilient or metal seat or the V-Segment valve for the accurate control of the medium. The line of K-Lok metal seated, firesafe, high performance butterfly valves conforms to ASME standards for fully rated applications in the marine, water, oil, gas and process industries. Grease or silicone free valves available for special applications such as paint or oxygen systems.
Flange Seal - Sealing O-Ring of resilient seat which provides an absolute seal to all flanges within specifications.Disc - precision machined and hand polished for positive seal with contoured edges for lower operating torque plus increased seat life. Sure Seal offers a full line of under cut discs, sizes 2" - 12", making it the only manufacturer to offer this option today.
Designed for maximum product flow. Available in 50 p.s.i. and 150 p.s.i. at same cost. Comes in Ductile Iron, Aluminum Bronze, 316 Stainless Steel, Monel, 25-5, 254-SMO, and also specially coated and plated discs for special applications.
Pressure : up to ANSI cl. 1500
Temperature : -253 to 815°C
Sizes : up to 1800mm
End connections : ANSI, AS2129, PN and ISO.

Quarter-turn rotary process (triple offset) valves designed for high performance shut-off (API 6D and API 598) where metal seating is required, such as abrasive services and extreme temperatures. Inherently fire-safe, the range includes cryogenic, high temperature, steam jacket and traced configurations.
Pressure : ANSI 150 to ANSI 900
Temperature : -253 to 816°C
Sizes : 80 to 2100mm
End Connections : Wafer and lugged ANSI
Seat - EPDM, Viton, and Sure Seal's Special Abrasion Resistant formulated blend of FDA approved Nitrile, along with 12 other standard compounds to meet your application.
Hub Seal or Primary Seal - Occurs when contact is made between the disc hub and the flat surface of the seat. Hub/seat seals prevent product from attacking stem or body.
Body - Lug style has drilled and tapped lugs meeting ANSI 125/150 flange standards. Lug body standard with Ductile Iron. Wafer body standard with Ductile Iron also available in Aluminum, Anodized Aluminum, Aluminum Bronze, Stainless Steel, Teflon? coated and several Corrosion Resistant platings.
Disc Screw and (patented) Sure Lock Assembly - sure Seal's Sure Lock Disc Screw Assembly is made of 316 Stainless Steel.