Features of underground fully welded ball valve

1. Due to its structure with minimum bolt connection, the valve often has light weight.

2. The valve stem is made of stainless steel with two anti-blowout o rings to ensure the operation. Its upper container can be replaced. Thus, buried fully welded ball valves can have long service life.

3. There are two mainly connection type, welded and flange connection.

Strengths of underground fully welded ball valve

1. Emergency grease sealing system

In case of leaking caused by application objects or fire accident, the emergency grease sealing system can ensure a temporary sealing by injecting grease into seat through grease gun.

2. Reliable stem sealing:

Besides standard sealing ring, there is an additional O-ring in the packing gland to double secure the reliability.

3. Full bore and reduced diameter

Full bore or reduced bore are available for users.

4. Extended stem option

The valve stem can be extended according to customer’s actual needs, which is especially suitable for underground application.

5. Easy operation

With superior self-lubricating property and small friction, the valve torque can be very small for easy operation.