Pressure Seal Gate Valve

Pressure Seal Gate Valve

Gangye Group Co.,Ltd. is a professional leading Chinese pressure seal gate valve, high pressure gate valve (150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB, 3500LB, 4500LB) Supplier with high quality and short delivery.

About the pressure seal gate valve:

Pressure seal construction is adopted for Valves for high pressure service, typically in excess of above 170 bar. The unique feature about the pressure seal Bonnet is that the body-Bonnet joints seals improves as the internal pressure in the Valve increases, compared to other constructions where the increase in internal pressure tends to create leaks in the body-Bonnet joint.

Material: CF3M CF3 CF8M CF8 CF8C WCB WC6 WC9 C5 C12 LCB LCC A890 GR.4A

Size Range: DN15-DN900 0.5”-36”

Pressure Rating: 10-75MPa 150LB-4500LB

Temperature Range: -196°C~600°C

Design Description:

- Outside Screw and Yoke

- Pressure Seal

- Rising stem

- Available with gear operators, electric actuators, pneumatic actuators, bypasses, locking devices, chain wheels, extended stems and bonnets for cryogenic service and many others are available to meet the customers’ requirements.

- Flange Ends and Butt welding Ends

- Different type of disc available

- Low torque design, smooth surface stem.

Pressure seal design:

A/B - BONNET TENDENCY TO MOVE UP OR DOWN AS PRESSURE CHANGES

C - SYSTEM PRESSURE

D - SEALING FORCES DUE TO PRESSURE

Installation procedure of gate valve:

Install the thrust screw of gate valve and the headstock gear base. The installation levelness and verticality shall meet the design requirements. The center of the headstock gear and the center of the screw hole of gate valve plate shall be in the same vertical line. The verticality deviation shall not be more than 1 / 1000, and the deviation in the whole process shall be less than 2mm. Connect the thrust screw of gate valve. Take the end of the thrust screw plate of gate valve plate as the benchmark, adjust the thrust screw of gate valve to be vertical, and then fix the headstock gear base, The hoist base shall be padded with sizing block. Then the secondary concrete pouring of gate valve and hoist shall be carried out.

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