Petroleum & Petrochemical Natural Gas 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.

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Features

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, Steam, Oil, Nitric acid, Acetic acid, Strong oxidizing medium, Urea, etc.

• Connection Mode: Flange, Welding

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

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

Model 2

Features:

As an extremely important globe valve, the sealing of the globe valve is to apply torque to the wide rod, which exerts pressure on the pin in the axial direction to make the regulating sealing surface closely fit with the regulating seat sealing surface, and the sealing medium is along the sealing surface to stop leak from the gap between them.

The sealing pair of the globe valve is composed of the sealing surface of the lubrication path and the sealing surface of the valve seat. The valve rod drives the valve flap to move vertically along the centerline of the valve seat. The opening height is small during the opening and closing process of the globe valve, which is easy to adjust the flow, convenient to manufacture and maintain.

Compared with the gate valve, 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 valve bear and the sealing surface of the valve seat during the process of opening and closing. Therefore, the wear and scratch of the sealing surface is small, so the service life of the sealing pair is improved. The valve travel is small and the height is relatively small during the full opening and full closing process of the cut-off valve.

The disadvantage of the globe valve is that the opening and closing torque is large and it is difficult to achieve rapid opening and closing, because the flow channel in the regulator body is relatively tortuous, high dynamic resistance causes great loss of fluid power in the pipeline.

• Product Standard:BS1873,ASME B16.34

• Nominal Pressure: CLASS150~CLASS2500

• Nominal Dimension: 2”~24”

• Main Material: A126WCB,WCC,A127WC6,WC9,C5,C12,C12A,CA15,A351CF8,CF3,CF3M,LCB,LCC

• Operating Temperature: - 60℃~593℃

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

• Connection Mode: Flange, Wafer

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

• Test Standard: API598, ISO5208,BS6364

Model 3

Nickel Base Alloy High Pressure& Temperature Globe Valve

Features:

In order to ensure the safety and reliability of the valve, the valve body is made of nickel base alloy material, which is made of overall silver or reported and welded. Due to the influence of structural factors, the cut-off adjustment is subject to large discharge and high pressure drop. The sealing surface materials of the adjustment plate and the valve seat should not only be resistant to corrosion and erosion, but also ensure the hardness at high temperatures. Therefore, the sealing surface is welded with cemented carbide to improve its wear resistance and scratch resistance and improve the service life of the sealing surface. In order to reduce the opening and closing torque of the gate, a new double valve structure can be adopted. The wide door middle chamber adopts a self sealing structure, which is conducive to high-pressure sealing. The higher the pressure, the better the sealing. A mechanism is set between the valve rod and the column to prevent the adjusting rod from rotating, so that the adjusting rod only moves up and down during the opening or closing process of the door, reducing the wear on the item material, and ensuring the sealing performance of the packing.

• Product Standard: GB/T 12224, ASME B16.34

• Nominal Pressure: PN100~PN420 (CLASS600~CLASS2500)

• Nominal Dimension: DN25~DN200 (1”~8”)

• Main Material: Nickel Base Alloy

• Operating Temperature: - 29℃~500℃

• Applicable Intermediaries: Corrosive media such as high sulfur, high acid, etc.

• Connection Mode: Flange, Welding

• Transmission Mode: Manual, Electric