Product description

The extension rod double relief fully welded ball valve is a special product used in natural gas pipelines. It is composed of a double relief pipe and a direct buried fully welded ball valve. The relief pipe and direct buried rod are manufactured according to customer requirements. The double relief pipes are on the left and right sides of the valve stem. One for each, when the pipeline is repaired or maintained, the excess medium can be discharged through the double venting pipe to reduce the pressure and protect the safety of the pipeline. The double vented fully welded ball valve produced by our company has the characteristics of stable performance, easy operation, exquisite appearance and long service life. Its performance is beyond the reach of ordinary ball valves.

Scope of application

City gas: gas output pipeline, main line and various branch supply pipelines, etc. Centralized heating: output pipelines, main lines, and branch lines of large-scale heating equipment. Heat exchanger: the pipeline and each circuit are opened and closed. Iron and steel plants: various fluid pipelines, exhaust gas discharge channels, gas and heat supply pipelines, fuel supply pipelines, etc. All kinds of industrial equipment: all kinds of heat treatment pipelines, all kinds of industrial gas and heating pipelines.

Product Features

1. With release device, flexible switch and small torque;

2. It is welded as a whole, and there will be no external leakage and other phenomena;

3. It is composed of pipes, with sufficient strength, low price, beautiful appearance and convenient construction;

4. When the valve is in the fully open or fully closed position, the drain plug can be opened. When opening the drain plug, prepare a wrench to prevent the drain plug from suddenly detaching. The shut-off and discharge functions can be used to verify the sealing integrity of the valve. If the discharge of one end of the valve cannot be stopped, it indicates that the valve seat may have leaked.

Main external connection size