3-piece butt welded ball valve is a kind of manual ball valves. It is widely used for pipelines to cut off or connect medium in petroleum, gas, electricity, etc. 3-piece butt welded ball valve has a ball with a hole. The ball rotates with stem to open or close valve. Compared with other valves, ball valve has the least flow resistance. When the valve is opened completely, medium flow though the valve without any losses.
Materials
|
Part Name |
Materials |
|
|
Body |
Stainless steel CF8M |
Carbon steel WCB |
|
Seal ring |
PTFE |
PTFE |
|
Bonnet |
Stainless steel CF8M |
Carbon steel WCB |
|
Ball |
Stainless steel SS316 |
Stainless steel SS304 |
|
Stem |
Stainless steel SS316 |
Stainless steel SS316 |
|
Nut |
Stainless steel SS304 |
Stainless steel SS304 |
|
Gasket |
Stainless steel SS304 |
Stainless steel SS304 |
|
Handle sleeve |
Plastic |
Plastic |
|
Handle |
Stainless steel SS304 |
Stainless steel SS304 |
|
Stem nut |
Stainless steel SS304 |
Stainless steel SS304 |
|
Packing stem nut |
Stainless steel SS304 |
Stainless steel SS304 |
|
Nut |
PTFE |
PTFE |
|
Thrust washer |
PTFE |
PTFE |
|
Bolt |
Stainless steel SS304 |
Stainless steel SS304 |
Characteristics
|
Nominal Pressure PN |
Applicable Temperature |
Applicable Medium |
Screw Thread |
|
1.6-6.4MPa |
-20～350℃ |
Water, oil, gas and other corrosive medium |
G.NPT.BSPT.BSP, DI259/2999 |
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