Parallel Single Disc Gate Valve

The parallel single disc gate valves have diversion hole, non-diversion hole and adjustment structure formations which are applied to natural gas, oil products, chemical engineering, city construction and environment protection industries. The anti-sulfur product series are fit for the high-speed long delivery pipeline of seriously eroded natural gas which contains H2S medium and much impurity.

Structural Features

• Easy and flexible operation made by intensively structured stem nut and lubricator
• Sealing grease can be injected into the packing by packing spacer to ensure the reliable seal and lubrication of the valve stem
• Metal waveform gasket of the middle flange ensures the reliable seal
• Valves with diversion hole, either fully open or fully closed, the disc will be kept in contact with the seat so that the sealing surface will not be washed out directly by the mediums and the valve will become more durable
• When the valve is fully opened, the passage is a straight pipeline. With little fluid resistance and pressure loss to allow the hair bulb to clean the pipeline
• Valve is fully closed for good protection and all-weather service
• The valve seat sealing adopts double seals. PTFE can clean away sand grain and dirties to ensure a reliable seal
• The structure of the floating seat allows the double seal of the valve inlet and outlet
• Valve body can be cast or forged. Short flat gate valve without diversion hole uses welded structure for short length and lightweight