Eccentric Hemispherical Ball Valve

PRODUCTION:
PQ / PBQ / XZ series control the opening and closing of the valve by the rotation of the eccentric shaft to drive the ball fixed to it. It is compact, flow capacity, and effectively sealed so that it can be an advantage not only to replace the gate valves and butterfly valves, and also can be applied to the system which they cannot be used. It is widely used in petroleum, chemical, metallurgy, electric power, municipal, water and waste water treatment piping systems.
FEATURES:
1.Eccentric movement, torque is small, flexible opening and closing
2.Suitable for the occasion of switch and adjustable control
3.The flow path is completely unimpeded, head loss is close to zero, and can save a lot of energy
4.Utilize the eccentric wedge principle, improve the reliability of sealing
5.When the eccentric half ball open, the eccentric shaft and ball crown is hidden in the body without being washed; only at the last moment ball crown is closure to the seat, so do not form a friction
6.open and close rapidly: eccentric crankshaft rotates 90 degrees to achieve open and close
7.straight flow channel, fastening eccentric crank makes no vibration at high flow conditions
8.The ball crown is made of high quality stainless steel, eccentric avoid the wear and tear of ball crown and valve seat, so can serve long life
9.epoxy powder coating, excellent corrosion resistance
10.The upper cover meet ISO5211 standards, is facilitate to the installation of the actuator
11.small installation height: the height is half of the gate valve
APPLICATIONS:
1.Suitable for water, raw water, gas, natural gas, oil systems.
2.Suitable for the pump delivery system such as pressurized systems, fire systems, cooling water systems, central air conditioning system
3.Suitable for water systems, municipal systems, sewage treatment systems, irrigation systems, etc.
SPECIFICATION:
Nominal Diameter: DN50mm-DN1200mm
Nominal Pressure: 1.0MPa, 1.6MPa,2.5MPa,4.0MPa,6.3MPa
Temp: -10ºC-80ºC(NBR), -10ºC-135ºC(EPDM), -29ºC-150ºC(F), -29ºC-450ºC(H)
Face to Face: EN558-1,ISO5752 series3
Flange Standard: EN1092, ISO5752, DIN2501, or other as request.
Test:API598
Installation Notes
1.When used for water, gas, natural gas, refined oil, central air conditioning system installation, this valve can be installed in any way. The direction of medium flow should be in accordance with the instruction on the body.
2.When used in sewage, raw water, irrigation water system, it should be installed as the following manner.