Gate Valve Solid Wedge Vs Flexible Wedge

The most common were.

Gate valve solid wedge vs flexible wedge.

Velan pressure seal flexible wedge gate valves are ideal for high pressure steam main steam isolation liquid feedwater isolation catalytic reformers hydrocrackers and other tough services. Solid wedge is the most commonly used disk by its simplicity and strength. Solid wedge flexible wedge split wedge or parallel disk. Elongation causes the seats to compress against the gate and clamp the valve shut.

These cuts vary in size shape and depth. A cast in recess or deeper and wider cut on wedge perimeter gives more flexibility but compromises the strength. Wedge gate valve our parallel slide gate valve design offers many advantages over double disc wedge gate valves in providing tight reliable shut off in water and steam service. The flex wedge valve has a single piece optimized gate design to provide minimized seat leakage.

29 old right road ipswich ma 01938 usa t 1 978 744 5690 f 1 978 741 3626 www global weir comparison parallel slide gate valve vs. The flexible wedge is a one piece solid disk with a cut around the perimeter. Velan s proven pressure seal design. This problem overcome by using a flexible wedge gate valve.

Pressure binding sometimes in high temperature applications the flow medium such as water or steam is trapped in the valve bonnet area when the valve is closed for system shutdown. Gate valves are available with different disks or wedges. Ranging of the gate valves is usually made by the type of wedge used. Disks of a gate valve.

Gate valves are available with a variety of disks. In a cold steam system if a solid gate fits tightly between the valve seat when the steam is heated and pipes elongate. Flexible wedge gate valve. Classification of gate valves is usually made by the type disk used.

Chemicals oil gas power. Flexible wedge gate valves flex wedge share. Classification of gate valves. A shallow narrow cut on wedge perimeter gives less flexibility but retains strength.

Split wedge or flexible wedge type gate valves are expected to perform better than solid wedge gate valves when thermal binding is a concern. A valve with this type of wedge can be installed in each position and it is suitable for almost.