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The Forged valves provided by Weldon mainly include small size forged steel gate valve, forged steel globe valve and forged steel check valve, size range 1/4 - 2 Inch (DN15 - DN50), rating range Class 150 - 2500 LB(PN16 - PN420), forging materials in A105N, LF2, F11, F22, F304, F316, F304L, F316L etc.

During the forging process, the structure of metal becomes more compact, the plasticity and mechanical properties are improved, the mechanical properties of the forgings are normally higher than castings in same material. Considering the cost factor, forged valves are less than 2 inch, especially for high pressure, preferred for forging.

Product Range: 
Size: 1/4 Inch - 2 Inch (DN15 - DN50).
Pressure Rating: Class 150 LB - 2500 LB (PN16 - PN420).
Material: Forged Carbon steel, Stainless steel, Alloy steel, A105N, LF2, F11, F22, F304, F316, F304L, F316L etc.
Connetcion End: NPT, SW, BW, RTJ, RF.
Operation: Handwheel, Eletcric.
Design & Manufacture Standard: API 602.
Test Standard: API 598.
 
The forged gate valves supplied by Weldon are primarily designed for on-off services when linear flow and minimum limits of fluid are required. The wedge of the gate valve stops or allows flow through the gate valve and is like the opening or closing of the door. When the gate valve is opened, the closure is completely drawn into the valve leaving a complete opening for the flow. There is almost no pressure drop or flow restriction through the valve.

The forged gate valves provided by Weldon mainly follow the normative dimensions and pressure classes of the applicable specifications such as API 602 and ASME B16.34, the standard structure of body-bonnet connetcions are bolted bonnet or welded bonnet type, Flanged valves are provided with flanges integral with the body forgings, Standard gasket design for bolted-bonnet valves is spiral wound type up to ASME Class 1500 LB. Pressure seal bonnet are available for ASME Class 2500 LB and above. 
 
The forged globe valves supplied by Weldon are closing-down valves in which the closure member is moved squarely on and off the seat, there is a proportional relationship between valve opening and disc travel, the forged globe valve is suited for duties involving regulation of flow rate and frequent operation.

The forged globe valves provided by Weldon mainly follow the applicable specifications such as API 602 and ASME B16.34, the structure of body-bonnet connetcions are bolted bonnet (BB), welded bonnet type or pressure sealed bonnet. Flanged valves are provided with flanges integral with the body forgings, Standard gasket design for bolted-bonnet valves are spiral wound type up to ASME Class 1500 LB. Pressure seal bonnet valves are available for ASME Class 2500 LB and above.
 
Like cast steel check valve, The forged steel check valves provided by Weldon are used to prevent back flow in the line. The forged check valves follow the standard such as API 602 and ASME B16.34, bolted bonnet or welded bonnet type, integral flange, Pressure seal bonnet are also available. 
 
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