Flexible Wedge Gate Valves

Hanno Valve Flexible Wedge Gate Valves are a common type of valve, characterized by the use of wedge-shaped gate plates for sealing. The closing element (i.e. gate) of the Flexible Wedge Gate Valves is wedge-shaped and tightly combined with the two sealing surfaces of the valve seat to achieve a sealing effect. This design enables Flexible Wedge Gate Valvess to maintain good sealing performance under both high and low medium pressures.

main features

Sealing principle: The sealing of Flexible Wedge Gate Valvess relies on the tight combination of the two sealing surfaces on the wedge gate and the two sealing surfaces on the valve body. This design can increase the auxiliary sealing load, thereby maintaining good sealing performance under both high and low pressure conditions.

Structural form: The structural forms of Flexible Wedge Gate Valvess include elastic wedge single gate, rigid wedge single gate, and double gate types. Different forms of Flexible Wedge Gate Valvess are suitable for different working conditions.

Application scope: Flexible Wedge Gate Valvess are widely used in oil and steam pipelines such as petrochemicals and thermal power plants, as opening and closing devices for connecting or cutting off media in pipelines.

Advantages: Flexible Wedge Gate Valvess have the advantages of compact structure, reasonable design, good valve rigidity, smooth passage, and low flow coefficient. Its sealing surface is made of stainless steel and hard alloy, with a long service life. It is filled with flexible graphite, ensuring reliable sealing and easy and flexible operation.

Driving methods: The driving methods for Flexible Wedge Gate Valvess include manual, pneumatic, electric, and gear transmission.

Materials

Applications of Flexible Wedge Gate Valves

Flexible Wedge Gate Valves are widely used in industrial pipeline systems where reliable shut-off performance is required.

Common applications include:

These valves are commonly selected for applications requiring stable sealing performance, durable construction, and long-term operation under changing temperature conditions.

FAQ

What is a Flexible Wedge Gate Valve?

A Flexible Wedge Gate Valve is an industrial shut-off valve that uses a flexible wedge-shaped gate to control pipeline flow. The flexible design helps improve sealing reliability, especially under temperature variations.

What is the main benefit of a flexible wedge design?

The flexible wedge design allows the gate to adjust slightly during operation, helping compensate for thermal expansion and maintain better contact with the valve seats.

What industries use Flexible Wedge Gate Valves?

They are commonly used in power generation, petrochemical, oil and gas, steam pipeline, and industrial processing applications.

What materials are used for Flexible Wedge Gate Valves?

Common materials include carbon steel, stainless steel, alloy steel, and wear-resistant sealing surface materials such as 13Cr and STL6, depending on operating requirements.