Three-way ball valves are used to switch over, mix and divide the flow of corrosive or noncorrosive liquid, gas or powdery mediums. Upon opening and closing, the smooth flow channel effects less pressure loss, making operation quite labor-saving and maintain fairly easy. The five types of flow direction (figure on the below, 1 for L-shaped and 4 for T-shaped) to meet different technological requirements. lt can be hand, air and electrically operated. Structural features:
1\Valve seat can be designed into four-side seated float ball and fixed ball, with smooth fluid state and reliable seal; 2\The structure may be designed into side installed type and top installed type, with two way seal, no series flow upon switchover of flow direction; 3\Anti-flyout design of valve stem; 4\Antistatic design; 5\Two position (ON and OFF) lockup design.
Standard and regulation 1\Design and manufacture:GB/T12237-1989, ANSI B16.34, API608 2\Inspection and test:GB/T9092, GB/13927-1992, API598 3\Flange connection dimension:GB/T9113, JB/79.1-2-1994, ASME/ANSI B16.5 4\Face-to-face-dimension:ALS-2006
Applicable working conditions
Applicable medium: Water, oil, gas and other causticity medium (Different raw material for different medium) Applicable temperature:-46~300(Different raw material for different work temperature) Applicable working conditions Applicable medium: Water, oil, gas and other causticity medium (Different raw material for different medium) Applicable temperature:-46~300 (Different raw material for different work temperature)
Driving manner: Manual operated, Worm gear operated, Pneumatic operated, Electric operated
Test pressure (MPa)
Nominal pressure PN Maximum operatingpressure Shell test pressure Air seat test pressure Seal test pressure
1.6 1.6 2.4 0.6 1.76
2.5 2.5 3.8 0.6 2.75
4.0 4.0 6.0 0.6 4.4
Main parts material
Part name Material
GB ASTM
Body, Cover WCB, ZG1Cr18Ni9Ti WCB, CF8, CF8M
Seal ring PTFE, PPL PTFE, PPL
Ball 2Cr13, 1Cr18Ni9Ti 420 304 316
Seat, Stem 2Cr13 A246-416
Stud 35CrMoA A193-B7 |
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