The high-pressure Class 4500 gate valve is designed with PSB and SW end connection. Made of CS A105, the 2 inch gate valve follows the inspection standard API 598 and design standard API 602. Dervos could offer customizing service by providing clients with valves in different sizes, materials, standards, design pressure, structure, operation type and connection type.

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.

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.

China Flanged End Ball Valve Producer,Dervos Offers Flanged End Ball Valve, ASTM A350 LF6, Class 600, 1/2 Inch, Two Piece, Forging, API 608, BS 5351, ASME B16.34.

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 1 inch swing check valve has the construction of bolted bonnet and RF flange end. The forged steel swing check valve is designed with reduced bore as per API 602. Dervos could also do customizing service as per clients’ requests on sizes, design ratings, materials, and standards and so on.

A three-way ball valve has three ports or openings that are connected to piping or tubing for gas or fluid flow (media) to pass through.

The DN100 3 way ball valve is isolating valve designed to redirect the service fluid flow rather than throttling or regulating purposes. Suitable for water, steam, gas, oil, crude oil, acid, alkali and other liquids and gases without mechanical impurities.

2" 1500LB ball valve is made according to API 6D standard. It also complies with the design standard of NACE MR0175. The valve body is made of ASTM-A105. It has the structural characteristics of full flow and trunnion mounted ball. It has RTJ connection mode and gearbox operation mode.

It is a Carbon Steel full bore flat gatevalve with parallel wedge, DN250 PN100, made from LCC, one kind of low-temp carbon steel, which makes this valve capable to handle extreme working conditions.

The DN100 safety valve, made of WCB and according to GB/T12241-2005, usually work as the over-pressure protection device that work under a steam, air, water or other non-corrosive medium.

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.

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.

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.

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.

This DN50 gate valve is one of the recent batch of our fresh heating jacketed gate valves whose diameter ranges from DN50 to DN150.

The DN50 PN160 spring loaded lift check valve, made of Cast Steel, is powered by flow and differential pressure with assistance from spring pressure. And it requests no human intervention is required to function, easy to use.

High Pressure Check Valve Supplier in China Offers Pressure-Seal Bonnet Check Valve, ASTM A105N, 1 Inch, Class 1500 LB, Forged Steel Lift Check Valve.

China Wafer Type Butterfly Valve Provider DVS Supplies Cast Steel Wafer Butterfly Valve, 2 Inch, Class 300, Lever Operation, for Air, Water, Steam and Gases.

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.