2016年8月2日星期二

What is flange ends V-type ball valves and pipe connections ?

Flange ends V-type ball valve is a ball valve V-type connected with the pipe through the flange, with its relatively corresponding V-type ball valve is threaded and welded V-type ball valve.
Flange is an important way to connect pipeline construction, flange (RF), also known as RF,RTJ or FF, flanges are connected to each other between the valve and the pipe, tube and pipe parts for pipe end The connection between; it is the two pipes, fittings or equipment attached to each one of the flanges, flange gasket between the two flanges together with bolted together to complete the connection, but sometimes Some fittings and valves has been carrying flange, also belong to the flange connection, flange connection V-type ball valves are easy to use, able to withstand greater pressure on industrial pipe flange V-type ball valve use more widely, because Industrial pipe diameter is relatively large, and it is relatively large pressure.
V-type ball valve and pipe connections .
Select the connection V-type ball valve with the line or between devices is right and proper, it will directly affect the V-type ball valve generation run, run, drip, drain phenomenon of probability.
V-type ball valve connections include: flanged, wafer, welded connections, threaded connections, sleeve connections, clamp even
First, Flange ends V-type ball valve
V-type ball valve at both ends with a flange, and the flange on the corresponding pipe, installed in a pipe bolted flange. V-type ball valve flange connection is the most frequently used form of connection. There flange raised face (RF), plane (FF), convex and concave surfaces (MF) and other points. Press the combination of surface shape can be divided into the following categories:
1)Smooth style: not for high pressure valves, processing more convenient.
2)Lenticular: higher working pressure, can be used in hard-washer.
3)Tenon slot: Available plastic deformation larger washers use in corrosive media is more extensive and better seal.
4)Trapezoidal trough: oval metal ring gasket for use in the working pressure ≥64 kg / cm of valves, or high temperature valves.
5)Lens type: washer lens shape, made of metal. For operating pressure ≥100 kg / cm high pressure valves, or high temperature valves.
6)O-ring type: This is a relatively new form of flange connection, it is with the emergence of a variety of rubber O-ring, and developed, it is generally flat washers reliable sealing effect on the ratio.
Second, the clip connection V-type ball valve.
Wafer V-type ball valve mounted on two intermediate flanges, the body often have locating holes for easy installation location, directly through the V-type ball valve and pipe connection in the form of two clamped together with bolts.
Third, the welded connection V-type ball valve.
1)Welded connections: V-type ball valve ends by butt welding butt groove processed into the corresponding groove and pipe welding, pipe fixed by welding.
2)Socket weld: V-type ball valve socket weld ends according to the requirements of the processing, and pipeline socket weld connections.
Should you want to know more about ball valve, such as trunnion ball valve from Relia Valve, please visit www.reliavalve.com or email us via sales@reliavalve.com.

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