The advantages of fixed ball valve:
1, sealing emergency greasing rescue: caused by foreign bodies or fire in our medium fixed ball valve seat seal failure accident, greasing valve provides a connection to a quick note grease gun, convenient pipe fittings manufacturer and quick to import pump sealing grease injection to the valve seat sealing parts, reduce leakage.
2, can rely on the valve stem seal and low operating torque: in addition to fixed ball valve sealing ring set standard, the packing gland is also equipped with o-rings, double seal to ensure the stem seal can rely on; Adding graphite packing and sealing grease injection to make the valve stem leakage after the fire fell to a low zui. Sliding bearing and thrust bearing makes the valve stem operation.
3, full size or reducing: fixed ball valve can choose according to need full size or reducing structure. Full size pipeline ball valve flow aperture is consistent with the pipeline diameter, facilitate pipeline cleaning.
4, the valve stem can be lengthened: according to the needs of pipe fittings manufacturer the installation or operation, can be extended to the valve stem. Extension rod fixed ball valve, especially suitable for the occasion of city gas and so on need to be buried laying pipelines. Lengthen the stem size according to customers need to be addressed.
5, flexible operation, using a small friction coefficient and good self-lubrication bearing seat and stem, greatly reducing valve operating torque. So even in the case of the provided no sealing grease, is also a long-term mobility to operate the valve.
Fixed ball valve operation
1. The operation must be confirmed before line and the fixed ball valve has been washed.
2. The operation of the valve actuator 14 tube fitting input signal size turns the valve stem complete: 1/4 turns positive (900), the valve is shut off. Counter-rotating 1/4 round (900), the valve is open.
3. When executing agency indicating arrow direction parallel to the pipeline when the valve is open; Indicating arrow and vertical pipeline, the valve is closed.
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