Company Info |
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Company Name | ZHEJIANG DEXI VALVE CO.,LTD. |
Country/Territory: | Zhejiang China |
Business Type: | | 1,2,4,7,8,9 |
Number of Employees: | |
Main Products: ball valve gate valve globe valve check valve butterfly valve |
a. All the components are forged steel.
b. Lower-loading stem and backward sealing construction have been set up for positive sealing at stuffing position and backing-out protecting of the handle.
c. Interceded valve seat is applied on whose back O-ring is also mounted for avoiding the leakage of medium.
High-pressure forged-steel ball valve main parts and materials
Accessory name | Material | |
GB | ASTM | |
Body, bonnet | WCB | A216-WCB |
Sealing ring | Nylon | Nylon |
Ball | 1Cr18Ni9Ti | SS 304 |
Seat, stem | 2Cr13 | A246-416 |
O-ring | RUBBER | RUBBER |
Dual-head bolt | 35CrMoA | A193-B7 |
Notes: Main parts of the valve series and materials of sealing surface differ according to actual working condition and customers special requirements.
High-pressure forged-steel ball valve main performance specifications
PN (Mpa) | Test pressure (Mpa) | ||
Shell | High-pressure liquid sealing | Low-pressure hermetic sealing | |
16.0 | 24 | 17.6 | 0.6 |
32.0 | 48 | 35.2 | |
Applicable temperature | -40~80 | ||
Applicable medium | Water, oil products, nitrogen, ammonia, hydrogen, and liquefied gas, etc. |
Notes: The sizes of serial valve connecting flange can be designed according to customers requirements.
High-pressure forged-steel ball valve main types and connection dimensions