Stainless Steel Precision Casting/investment Casting Power Station Gate Valve

There are two types of ram structures: Elastic wedge type ram and wedge type double ram. The elastic wedge type single bay plate forcibly presses the ram towards the valve seat by the medium force to ensure the sealing of the sealing surface. The spacer plate is elastic, which can compensate the deformation due to processing or high temperature difference and meet the sealing requirements.

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Product Features

1. In accordance with NB/T 47044 and ASME B16.34

2. The mesh pole is abrasion resistant, high temperature resistant and corrosion resistant after conditioning and chlorination.

3. The tension in the mesh body use the pressure sealing structure(WOOD CLOSURE), and the higher wide body inner cavity pressure the better.

4. There are two types of ram structures: Elastic wedge type ram and wedge type double ram. The elastic wedge type single bay plate forcibly presses the ram towards the valve seat by the medium force to ensure the sealing of the sealing surface. The spacer plate is elastic, which can compensate the deformation due to processing or high temperature difference and meet the sealing requirements. The cast double ram adopts the ram frame structure, which is convenient for maintenance and the sealing angle can be adjusted automatically according to the valve body.

5. The sealing surface of wide seat and board is made of cemented carbide surfacing or sub item welding, with high temperature resistance, abrasion resistance and scratch resistance.

• Standard: 7*84: NB/T 47044, ASME B16.34. JB/T 3595. DL/T 531

• Nominal Pressure: PN160-PN630 (CLASS900- CLASS3500) , P₅₄100V, P₅₄140V, P₅₄170V, P₅₇100V, P₅₇140V, P₅₇170V

• Nominal Dimension: DN50~DN500 (2”- 20”)

• Main Material:

1.WCB, ZG20CrMo, Cr5Mo, ZG20CrMoV, ZG15Cr1MoV

2. 25#, 12Cr1MoV

3. ASTM A216 WCB, ASTM A217 WC6, ASTM A217 WC9, ASTM A217 C12A

4. ASSTM A105, ASTM A182 F11, ASTM A182 F22,ASTM A182 F91, ASTM A192 F92

• Operating Temperature:

1. WCB: - 29℃~425℃

2. Alloy steel: - 29℃~540℃, - 29℃~570℃

3. F91:-29℃~610℃

• Applicable Intermediaries: Water, Steam, etc

• Connection Mode: Welding

• Transmission Mode: Manual, Wheel equalizing, Electric, Pneumatic, Hydraulic

GB Gate Valve

Features:

Gate valve refers to the control valve whose closing piece (gate) moves in the vertical direction along the centerline of the passage. In the pipeline, the brake regulator can only be used for full opening and full closing, and cannot be used for regulation and throttling.

When the gate is closed, the sealing surface can be sealed only by the medium pressure, that is, the sealing surface of the plate is pressed to the valve seat on the other side by the medium pressure to ensure the sealing of the sealing surface, which is called white sealing. Most of the gate regulators adopt forced sealing, that is, when the valve is closed, external force is required to force the ram is pressed to adjust the seat to ensure the tightness of the sealing surface.

When opening the valve, and the lift height of the ram is equal to 1:1 times the diameter of the control valve, the fluid passage is completely pulverized, but this position cannot be monitored during operation. In actual use, the vertex of the valve pole is taken as the sign, that is, the position where it can not be opened is taken as its full open position. In order to consider the phenomenon of locking due to temperature change, it is usually to turn back 1/2 to 1 turn when the valve is opened to the position of the item point as the position of the full open the valve. Therefore, the full open position of the valve is determined by the position of the ram (i.e., the stroke).

• Product Standard: GB/T 12234, GB/T 12224

• Nominal Pressure: PN16-PN320

• Nominal Dimension: DN50~DN1200

• 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

ANSI Gate Valve

Features:

The gate valve refers to the valve door where the closing piece (ram) moves along the vertical direction of the centerline of the passage. The gate valve can only be used in the pipeline to fully open up and pay attention to new uses, and should not regulate or reduce expenditure.

When the gate valve is closed, the sealing surface can be sealed only by the medium pressure, the sealing surface of the ram is pressed to the other side by the medium pressure to ensure the sealing of the sealing surface, which is called white sealing. Most of the gate regulators adopt forced sealing, when the wide door is closed, it is necessary to rely on external force to force the sniffer plate towards the adjusting seat to ensure the sealing of the sealing surface.

When opening the valve, when the lifting height of the ram is 1:1 times of the regulating valve diameter, the fluid passage is completely smooth, but this position cannot be monitored during operation. In actual use, the top point of the reading rod is taken as the sign, that is, the position that cannot be opened is taken as its full open position. In order to take into account the locked phenomenon of temperature change, it is usually turned back 1/2-1 circle at the top position as the full opening position of the control valve. Therefore, the full open position of the valve is based on the position of the ram.

• Product Standard: API600,API6D,ASME B16.34

• Nominal Pressure: CLASS150~CLASS2500

• Nominal Dimension: 2”~60”

• 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

Flat Gate Valve

Features:

1. It adopts floating seat adjustment, two-way cut-off and reliable sealing. The valve seat is internally provided with a lip shaped gasket, which is conducive to low pressure sealing and has a fire protection function.

2. Both the ram and valve body have a finely machined guide mechanism, and the sealing surfaces are sprayed with cemented carbide, which is erosion resistant.

3. Because of the use of floating adjusting seat and fine processing guide mechanism, the opening and closing torque of the valve is reduced by half compared with that of regular gate valve, and the opening and closing of the valve can be easily operated.

4. The flow channel is a straight through type. When it is fully opened, the flow channel and the gate guide hole are connected, and the size is the same as that of the straight pipe. The flow resistance is very small.

5. The valve rod adopts multiple packing seals to ensure even packing compression, reliable sealing and low friction.

6. All weather design, transmission mechanism is designed with waterproof and dust-proof device, with good protection performance.

• Product Standard: API6D,JB/T5298,ASME B16.34

• Nominal Pressure: PN16~PN250 (CLASS150~CLASS1500)

• Nominal Dimension: DN25~DN900 (1”~36”)

• Main Material: HT200,QT450,WCB,A105,WC6,WC9,20CrMo,20CrMoV

• Operating Temperature: - 29℃~121℃

• Applicable Intermediaries: Water, Oil, Natural gas, etc.

• Connection Mode: Flange, Welding

• Transmission Mode: Handle, Electric, Pneumatic, Bevel gear