Forged Globe Valve Manufacturer, Forged Steel Globe Valve Supplier

Forged Globe Valve

A Forged Steel Globe Valve is a valve whose closure member (valve disc) moves along the center line of the seat. According to this movement of the disc, the port change of valve seat is directly proportional to the disc stroke. The forged steel globe valves have a relatively short stem opening or closing stroke and is highly reliable to cut off, as well as a positive relation between seat port and disc stroke. Therefore, this type of valves are very suitable for cutting off or regulating as well as throttling.

The most obvious advantage is that during opening and closing, the disc is wear-resistant because the friction between the valve disc and sealing surface of the body is less than that of the gate valve. Open height is generally only 1/4 of the diameter of the seat channel and is therefore much smaller than that of gate valves. There is usually only one sealing surface between the body and disc, so the globe valve is in better manufacturing process and easy to maintain. Applicable temperature: 196 ℃ ~ 700 ℃; mode of operation: manual, bevel gear, pneumatic, electric, hydraulic, pneumatic & hydraulic linkage, electro-hydraulic linkage; body material: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8 (304), CF3 (304 l), CF8M (316), CF3M, Ti (316 l). Different materials can be used for water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media.

For a Bolted Bonnet Forged Globe Valve, the bolt connection is convenient to use and can withstand much high pressure, but has a certain limitation on the work temperature. In the working condition of high temperature, the connection bolt is prone to cause creep phenomenon and leakage. Hence, bolted bonnet forged globe valves are generally recommended to be used at a temperature of ≤350 °C.
For a Pressure Sealed Bonnet Forged Globe Valve, the self-sealing connection is a form of connection that utilizes the pressure of the medium to self-tighten. The higher the medium pressure is, the stronger the self-tightening force is. Therefore, this type of connection of pressure sealed bonnet forged globe valves is suitable for high pressure valves with a pressure exceeding 900 LB.
A Welded Bonnet Forged Globe Valve is a kind of forged steel globe valve whose body and bonnet are welded directly, not by conventional bolts. This feature of welded bonnet forged globe valves helps reduce the possibility of flange leakage and can be applied to higher pressures and temperatures.