| Model： | ||
| Standard or Nonstandard： | Standard |
|
| Pressure： | LowPressure |
|
| Material： | A216-WCBA352-LCBA351-CF8,CF8M,CF3,CF3M |
| PriceRange： | ||
| Structure： | Ball |
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Ball valves in sizes up to 2 inch generally come in single piece, two or three piece designs. One piece ball valves are usually reduced bore, relatively inexpensive.
1PC ball valve can be also called one-piece body ball valve. It is inherently a high integrity valve. The number of leak paths to atmosphere is reduced to a minimum. Standard valves have a single body casting which can include the bonnet. Small valves with screwed connections can be manufactured by machining from a solid forging: internal access being gained through the bonnet and bottom flange when fitted.
These valves will work in either direction but a good case can be made for using them in one particular way. If the seat which is fitted direcetly to the body is placed downstream all seat loads when closed are carred by casring. However the high pressure fluid is constantly exposed to the insert joint. If the valve is used in the other direction the closed seat load is carried by the insert.
1PC ball valves are available in wide range of sizes and materials. Popular reduced bore valves, suitable for pressures of 20 barg or 50 barg, are available from 1/2’’.
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