Dervos is a proud industrial API 600 cast steel gate valve manufacturer in China. Our stainless steel gate valves, carbon steel gate valves, and alloy steel gate valves are available in all trim configurations.

With outside screw and yoke, handwheel operation, NPT, the forged steel globe valve is made of A105 and designed as per BS5352.

DN150 PN16 Ball Valve is made according to ISO 17292 standard. The fire resistance test meets the requirements of API 607 standard. The valve body is made of ASTM A105. Its operation mode is turbine operation. The trunnion mounted ball valve with a structural length of 400mm has the structural characteristics of full bore.

2" 150LB ball valve is made according to ISO17292 standard. The valve body is made of B148 C95400. It has the structural characteristics of full flow, floating ball, anti-fire, anti-static and anti-flying valve stem. Its operation mode is lever and connection mode is RF.

8" 1500LB gate valve is made according to ASME B16.34 standard. The valve body is made of WCC. It has the structural characteristics of pressure self sealing, elastic gate and structural length of 711mm. The working principle of self sealing valve is mainly to use wedge sealing surface to seal under pressure.

10'' 1500LB gate valve is made according to ASME B16.34 standard. The valve body is made of WCC. It has the structural characteristics of pressure self sealing, rising stem, elastic wedge and structural length of 864mm. Both ends of the valve stem are threaded. It has BW connection type.

EN 13709 Design and manufacture. EN558-1 Face to Face dimension. EN1092-B1 Flange and dimension. EN12266 Test and inspection standard.

This 1/2 Inch plug valve is made of A216 WCB, according to API598.With little required maintenance and trouble-free operation, a high integrity bubble-tight seal is provided both in-line and to atmosphere.

12" 300LB butterfly valve is made according to API 609 standard. The valve body is made of WCB. It has the structural characteristics of high performance and double eccentric. Its operation is turbine operation and packing is graphite.

The 3 inch 150LB expanding plug valves are designed for applications in which positive shutoff, verifiable zero leakage, and double block-and-bleed capabilities are required.

The DN100 through conduit slate gate valve is made according to EN558.It is ideal for pipeline applications requiring pigging capability.

This DN50 gate valve is one of the recent batch of our fresh double heating jacketed gate valves whose diameter ranges from DN50 to DN250. The double jacket prevents the valve body from beingcorroded by insulation media.

The gate valve is made of ductile iron GGG50 . The valves disc is rubber-packed to get excellent sealing effect by the rubber's resilient deformation. Non-rising resilient seated gate valves solve the problem in general gate valves such as leakage, rusting etc. And it also saves space.

Dervos manufactures a versatile range of Ball Valves in single, two and three piece constructions. The valves are available in full-bore and regular-bore designs, in a variety of end connections and materials to meet your requirements.

Made of high-quality casting, the DIN swing check valve has a cast steel body with bolted bonnet structure and flange connection. The valve is designed with good sealing performance and minimal water hammer effect.

The PN10 DN200 double offset butterfly valve collects durable body and an easy replaceable seat for control services the power, chemical, petrochemical and other fields.

The gate valve, made according to API 600, is made of CF8, one kind of cast steel. The 4 inch valve is equipped a handwheel, outside yoke, bolted bonnet and extended bonnet. All the accessories are traceable.

4" 150LB gate valve is made according to API 603 standard. The valve body is made of ASTM A351 CF8M+STL. It has the structural characteristics of bolt cover, elastic wedge and rising stem. Its test and inspection conform to API 598, and its operation mode is handwheel operation.