Parallel Slide Gate Valve Operation

Velan s proven pressure seal design.

Parallel slide gate valve operation.

High pressure parallel slide gate valve for isolation of steam and condensate in the power generation industry. System pressure is used to provide isolation. Two discs and just one wedge design gate valve. This design of gate valve is commonly used for clean fluids and steam applications.

Parallel slide valve venturi follower eye feature the advantages of the follower eye are clearly shown in the sketch opposite page which compares the venturi parallel slide design with a full bore wedge gate valve. Designed to asme b16 34. Parallel slide gate valves use system pressure and position to provide positive isolation. Unique parallel slide forged cage unit design comprises all operating parts of the slide discs.

Parallel slide gate valve venturi design pressure seal configuration page 1 5 via cardona n 48 salt di povoletto ud cap 33040 italy tel. The replaceable structure of the dual valve seat provides a function of double block and bleed dbb. They are not suitable for modulation of flow i e. Anchor darling double disc gate valve sizes 2 5 and over with t head stem user instructions iom view all.

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. Parallel slide gate valve provides a smooth flow path between seats. Our parallel slide gate valve uses position. One of these advantages comes from the seating method used by these valves.

Parallel slide gate valves double disk share. Kvt o m manual parallel slide gate valve om psgv 3 2011 06 01 4 kvt psg om english 2011 docx 1. Comparison parallel slide gate valve vs. Body made of superior strength forgings and optional cast steel.

It has two parallel disks that are forced on the closure against parallel seats by a spreader. The closing is only made over one of the seats. Seal is established on outlet. Parallel gate slide valves utilize a parallel faced gate like seating element.

Page 2 5 iso nr 50 100 13075 parallel slide gate valves pressure seal configuration both designs accordingly asme b16 34 and en 12516. Parallel slide gate valves double disk.