fixed ball valve adopts fixed valve spool valve stem (up and down Shaft type) And movable seal seat design. Work is more stable. Automatic compensation function, two-way sealing seat no clearance between rotation has great shearing force and self-cleaning function. Especially suitable for imperial fiber and has a small solid particles suspension and viscous medium on and off. Fixed ball valve products can be widely used in papermaking, petrochemical, chemical, metallurgy, electric power, environmental protection, petroleum, light industry and other industrial departments of automation control system.

fixed ball valve structure features:

1, blocking and excretion:

fixed ball valve USES the floating seat spring preload, regardless of whether the valve is in full open or close state, upstream and downstream side of the seat that fluid blocking, body lumen retentate through the discharge valve discharge.

when valve is closed ( Figure 7) Fixed ball valve body lumen stagnant toughening can discharge, the discharge device ( Figure 8) Has the following functions:

1) prior to check whether the valve seat leakage injury;

7) reduce the amount of pollution released into the medium replacement of fixed ball valve;

(3) under the working pressure, the valve is in full open or close state, can replace the valve stem packing.

2, automatic pressure release:

stop valve body cavity medium temperature increase caused by the abnormal pressure, do not need through the relief valve, and only on the seat function can automatic relief, this to guarantee the safety of valve in liquid medium is very important.

ball valve lumen stagnant medium due to temperature increase, and the abnormal pressure, the seat from the sphere automatic relief ( Figure 9) Or the body of the relief Industrial Valves installed on ( Figure 10. ) Ensure the safety of the system.

3, completely sealed:

fixed ball valve has a unique way of seal, fluid completely blocked. To prevent fire, fixed ball valve is still reliable operation, and at the same time can block and ball contact ( Comply with the provisions of the APl, 607.

5, sealing emergency greasing rescue

caused by foreign bodies or fire in our medium seat tightness unexpected failure, greasing valve provides a connection to a quick note grease gun, convenient and quick to sealing grease injection to the valve seat sealing parts, reduce leakage.

6, reliable stem seal and low operating torque

in addition to setting the standard of sealing ring, the packing gland is also equipped with & other; O” Type sealing ring, double seal to ensure the reliability of the stem seal; Adding graphite packing and sealing grease injection makes the valve stem leakage after the fire to a minimum. Sliding bearing and thrust bearing makes the valve stem operation.

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 and quick to import pump sealing grease injection to the valve seat sealing parts, reduce leakage. 2, reliable 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 reliability of the stem seal; Adding graphite packing and sealing grease injection makes the valve stem leakage after the fire to a minimum. 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 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 of

1. Must be confirmed before operating line and the fixed ball valve has been washed.

2。 The operation of the valve actuator input signal size turns the valve stem complete: positive (1/4 turns 900). When the Industrial Valves is shut off. Counter-rotating 1/4 turn ( 900). When the valve opens.

3。 When executing agency indicating arrow direction parallel to the line when the valve is open; Indicating arrow and vertical pipeline, the valve is closed.

Shenzhen Mech Valve Trading Co., Ltd. is the largest manufacturer of resilient seated gate valve, which is one of the best product manufactured from us.
To be the safest, most progressive domestic double flanged gate valve, relentless in the pursuit of customer and employee excellence.
Shenzhen Mech Valve Trading Co., Ltd. believes that the shorter the path between consumer and product, the more likely businesses are to convert more sales.
There are multiple advantages of having a resilient seal gate valve rising stem gate valve from responsible drilling machine exporters such as Shenzhen Mech Valve Trading Co., Ltd., as they adhere to all the quality standards as you can list and supply all resilient gate valve essential for the operation of the device without any difficulty.