Trunnion Ball Valve Flange End
Basic info:Trunnion ball valve adopts upper and lower stem to fix spool (shaft support) and movable sealing seat design. Work is more stable. With automatic compensation function, two-way sealing valve seat has a great shear force and self-cleaning function. It is especially suitable for the on and off of imperial fiber, suspension and viscous medium with small solid particles. Fixed ball valve products can be widely used in paper, petrochemical, chemical, metallurgy, electric power, environmental protection, petroleum, light industry and other industrial departments of automatic control system.
Qick review of flange collection trunnion ball valve:
|Product size range||DN50～800|
|Applicable to||Chemical industry, metallurgy, petroleum, paper making|
|Design & Manufacturing||GB122237|
|Face to face||GB12221|
|Pressure and temperature||GB9131|
|Inspection and test||GB/T13927,JB/T9092|
Operation of fixed ball valve flanged end
1. Make sure that the pipeline and fixed ball valve have been flushed before operation.
2. The operation of the valve drives the rotation of the valve stem according to the size of the input signal of the actuator: when the forward rotation is 1/4 turn (900), the valve is closed. When rotating 1/4 turn (900) in the reverse direction, the valve opens.
3. When the direction indicator of the actuator is parallel to the pipeline, the valve is open; when the arrow is perpendicular to the pipeline, the valve is closed.
How to ship flange end trunnion ball valve:
Our customer: long-term relationship with lots of large or state-owned enterprises such as Huadian, Guodian, Zijin and other enterprise groups.
Attn: Lizy Liu