ZHEJIANG DECA CONTROL VALVE METER CO., LTD

Production conditions

The elaborate and scientific design, advanced automatic production equipment, highly responsible and skilled operators and strict quality control personnel ensure that the first-class quality of products is fully displayed, and guarantee the stability With the concept of make competitive products increasing every day, DECA has made a great progress in the past days, DECA personnel will never change the clinging spirit to keep improving.



Featured Products
Electric parallel double disc gate valve
Electric parallel double disc gate valveLearn More >

Note: 1. When placing orders, users shall indicate the electric actuator brand, explosion-proof grade, control mode, operation time, electrical connection and other requirements, and provide operating conditions such as valve maximum closing differential pressure. 2. See table 1-18~1-20 for main outline dimensions and connection dimensions of the electric parallel double disc gate valve.

Flat gate valve
Flat gate valveLearn More >

About the flat gate valve, the two sealing surfaces are parallel to each other and vertical to the channel center. The disc is of flat plate shape. The elastic and floatable seat can always be kept close to the disc during the opening and closing process. The flat gate valve is mainly used for long transportation pipelines of crude oil, product oil, natural gas, etc. The flat gate valve with diversion hole is suitable for pipelines that require pigging, and the flat gate valve without diversion hole is suitable for pipelines that do not require pigging.

High-performance
High-performance "O" type ball valve, action: on-offLearn More >

The O type shut-off ball valve is a kind of quarter-turn on-off valve. It is mainly used for shut-off control of media. The ball valve of this series adopts round hole in the ball. When opened, it is directly connected to the body flow channel, featured by high flow capacity. Compared with plunger valves, it has small structural sizes, light weight and the function of self-cleaning between plug and seat. Therefore, it is very suitable for viscous, fibrous media and those containing suspended solid particles. With low heat expansion impact due to temperature, and good sealing performance, it is widely applied in the systems of such industries as petrochemical industry, metallurgy, chemical fiber, pulp & paper, medicine, hydroelectric station, etc. to meet the needs of remote control of process parameters such as flow, pressure, temperature and liquid level of all gases, liquids or corrosive gases and liquid media.

High-performance
High-performance "V" type Control valveLearn More >

The V type ball valve is a special kind of ball valve. Its closure member is the V opening on the spherical segment. With sharp edges, the V opening forms shearing action with the seat during the rotation process of the spherical segment. It has powerful cutting force to the media. The V opening on the spherical segment forms a sector area with the seat flow channel. During the rotation process, it can change the flow channel sectional area and carry out precise control of media. It is a control valve with rotary motion. Its has the same sealing performance as ordinary ball valves, so that it has both control and on-off functions. When equipped with a pneumatic or electric actuator, it can be widely applied in industrial process automatic control systems.

High performance three-eccentric butterfly valve
High performance three-eccentric butterfly valveLearn More >

The three-eccentric high-performance seal butterfly valve is a new generation seal butterfly valve independently designed and developed by our company after referring to advanced technologies at home and abroad. According to different seal assemblies at the body, the butterfly valve has three types: The first type is to adopt a multi-level compound seal structure. The seal ring is made of soft and hard layered stainless steel sheet and elastic sealing gasket, making it have the advantages of metal hard seal and elastic seal. The seat sealing face is subject to integral overlaying welding of temperature and corrosion resistant alloy materials. The contact face of the seal ring and seat of the valve adopts a "cone-in-cone" structure, and the two cones are both bevel cones. The contact angle between the seal ring and metal seat produces light "wedge effect", making the seal ring produce flexible movement and radial compression. Thanks to the even contact between the seat and seal ring, the tightest shut-offcan be realized by using the lowesttorque, featured by high reliability and stability and long sealing face service life. The second type is to adopt a soft seal structure. Its seal structure is similar to that of the multi-level compound seal buttery valve, with the difference that the seal ring is made of integral PTFE materials, which are more suitable for applications with high on-off frequency and high requirements for sealing face corrosion resistance. The third type is to adopt a metal hard seal structure. The sealing pair does not contain any nonmetals. The seat sealing face and the seal ring sealing face are subject to Stellite overlaying welding, ensuring anti-erosion during the use. The sealing pair adopts a "hard-contact-hard" structure. Once the valve is closed, there is no need to adjust through the closing position, and the sealing is very reliable. The valve is widely applied in such industries as petroleum, chemical industry, light industry, oil terminal, metallurgy, electric power, etc. The product can be conveniently equipped with a cylinder actuator (single acting or double acting can be selected according to the needs), or an electric actuator to realize local control and remote control.

Latest News
National Conference on the Standardization valve
National Conference on the Standardization valve

National Standardization Technical Committee valve fourth in Fujian Changtai held seven meetings, members of the standard

Valves, Pressure Test Method
Valves, Pressure Test Method

National Standardization Technical Committee valve fourth in Fujian Changtai held seven meetings, members of the standard

National Conference on the Standardization valve
National Conference on the Standardization valve

National Standardization Technical Committee valve fourth in Fujian Changtai held seven meetings, members of the standard

Contact us
  • Tel: 0577-67709555 67709666

  • Fax: 0577-67709199

  • E-mail: zjdeka@163.com

  • Address: No.86 Zhenzhong East Rd, Juyu Industry District, Wencheng County, Wenzhou City, P.R.C

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