GB Globe Valve

As an extremely important globe valve, the sealing of the globe valve is to apply torque to the valve stem, and the valve stem applies pressure to the regulating handle in the axial direction to make the valve loose sealing surface closely fit with the sealing surface of the valve seat and prevent the medium from leaking along the gap between the sealing surfaces.

The sealing pair of the globe valve is composed of the sealing surface of the valve flap and the sealing surface of the valve seat. The valve rod drives the valve handle to move vertically along the centerline of the valve seat. In the process of globe opening and closing, the opening height is small, which is easy to adjust the flow, convenient to manufacture and maintain, and has a wide range of pressure applications.

Compared with gate valve, which is another widely used industrial globe valve, the globe valve is simpler in structure and easier to manufacture and maintain. In terms of service life, the sealing surface of the globe valve is not easy to wear and scratch, and there is no relative sliding between the reading flap and the sealing surface of the valve seat during the opening&closing process of the valve. In that case, the scratch on the sealing surface is small, so the service life of the sealing pair lasts longer. In the process of full opening&closing, the travel of the valve flap is small, and its height is relatively small. The disadvantage of the globe adjustment is that the opening&closing torque is large and it is difficult to operate rapidly. As the flow passage in the valve body is relatively tortuous, the fluid flow has a large positive force, resulting in a large loss of fluid power in the pipeline.

• Product Standard: GB/T 12235, GB/T 12224

• Nominal Pressure: PN16-PN320

• Nominal Dimension: DN50~DN600

• Main Material: .WCB,WCC,20CrMo,1Cr5Mo,20CrMoV,CF8,CF8M,CF3,CF3M,LCB,LCC

• Operating Temperature:  - 60℃~593℃

• Applicable Intermediaries: Water, Vapour,Oil,Nitric acid,Acetic acid,Strong oxidizing medium,Urea,etc.

• Connection Mode: Flange,Welding

•Transmission Mode: Lifting handwheel, Non-lifting handwheel, Bevel gear, Electric actuator,Pneumatic actuator .

• Test Standard: GB/T 26480, GB/T 13927, JB/T 9092