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Zhejiang Sedelon Valve Co.,Ltd, China gate valve, globe valve, butt weld globe valve, expanding plug valves, stainless steel ball valve, lug-style butterfly valves, cast steel butterfly valves, low temperature ball valves, socket weld end ball valves manufacturer and factory. Welcome to contact us.
Certificates

The company has passed ISO9001:2008
quality management system certification.

   
  • Special Equipment Type-examination Certificate-Globe valves
  • Special Equipment Type-examination Certificate-Gate valves
  • Special Equipment Type-examination Certificate-Ball valves
  • Manufacture License of Special Equipment People's Republic of China
  • ISO9001
  • CE-1521-1
  • CE-1521-2
  • CE-1521-3
  • CE-1521-4
  • CE-1521-5
About Sedelon
Sedelon Valve Co.,LtdRead
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SedelonValve Company is established in 1998. Based in “the valve county”---Wenzhou, Zhejiang, China, this company integrates manufacturing and trading together.
The main products of this company are Bronze valves, API/DIN gate/globe/ check valves/butterfly valve/plug valve, ball valves and forged steel valves. Its products have been widely used in petroleum, petrochemical, chemical, metallurgy, electric power, water conservancy, machinery and many other fields.
In order to provide customer high-quality and better service, the company has equipped the system certification such as API6D, CE, ISO9001, TS, ect.
We have a strong technical and management team which is formed by advanced technical experts, engineers, managers, salesmen. We emphasize the importance of teamwork. Working together and helping each other, we are just like a big and warm family.

MediaRead More
  • API598 Inspection and Testing
    API598 Inspection and Testing

    API598 Inspection and Testing Inspection Range: This standard covers the inspection, test, complementary inspection and pressure test of Gate, Globe, Check, Ball, Butterfly and Plug valves. Testing Types: A shell test B backseat test C low pressure seal test D high pressure seal test E appearance inspection of casting F high pressure gas shell test.

  • Lift Check Valve
    Lift Check Valve

    Sedelon®Lift Check Valve Sedelon Valve Provide a lot of Check Valves,Today we main talk about Lift Check Valves.

  • The Difference Between Gate Valves and Globe Valves @Sedelon®
    The Difference Between Gate Valves and Globe Valves @Sedelon®

    The Difference Between Gate Valves and Globe Valves @Sedelon® In the process of regulating the flow,the valves play an important role. With the rapid development of the valve's usage, the types of valves are becoming diverse. Gate valves and globe valves are two typical valve types among them. So what are the differences between these two kinds of valves? Regarding the gate valve, when the valve opens and closes, the stem of the valve will move along with the wedge. This type is rising stem gate valve. Through the slot on the valve body and the nut on the top of the valve, the rotation movement is turned into the straight-forward movement with the help of the acme thread on the stem, thus making the operating torque to become operating thrust. Glove Valves: The globe valves can be used to cut and throttle the fluid. As a kind of typical cut-off valve, the sealing performance can be accomplished by exerting torque on the valve stem which will make pressure on the disc in axial direction, then the sealing face and the seat face will touch tightly to avoid the leakage of the fluid through the sealing parts. Advantages and disadvantages Regarding the gate valves, flow resistance is smaller, because channel in the eternal body is direct and straight. Different from the globe valves, the movement of the wedge in the gate valve is axis to the flow of fluid when opening and closing. But the disadvantage is that the sealing face will easily have erosion and abrasion so the maintenance will be difficult. The size is big, thus the opening of it needs more space and time. Globe valves: the structure is simpler, the maintenance and repair are easier. The sealing face is not easily eroded. The sealing performance is good! The maintenance procedures: The maintenance of the gate valve is not suitable to operate in the pipeline site. Under this circumstance, the valves and pipes which are welded together is prior to use globe valves. The operators don't need to dismount the globe valves from the pipes. The characteristics of the gate valves and globe valves are quite clear according to the analysis of the advantages, structures and maintenance procedures. With the development of the economy and industry, choosing the suitable type of valves are very significant.