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Pneumatic high temperature stop valve

  • [valve model]: J641H,J641Y,J641W
  • [diameter specification]: DN50~DN300
  • [structural form]: Through
  • [valve body material]: Forged steel, stainless steel 304, 316, 316L, chromium molybdenum steel
  • [nominal pressure]: PN160-PN320
  • [applicable temperature]: -29℃-550℃
  • [application scope]: Iron and steel, metallurgy, power plant, thermal power and other enterprises
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  •  Pneumatic high temperature stop valve

Product overview

Pneumatic high temperature stop valve is a kind of stop valve which uses compressed gas to control valve opening and closing. Its switch is performed by compressed gas supply. The opening and closing device with heat dissipation device is connected with pipeline by butt welding or flange, which is suitable for two-position control and on-off operation in high-temperature and high-pressure field.
Technical parameters of pneumatic high temperature stop valve:
 
Driving mode: pneumatic control
Airtight seal test: 05-0.7mpa
Connection mode: flange type, butt welding type
Nominal pressure: 16, 25, 32 MPa
Applicable temperature: 425 ℃ 450 ℃ 500 ℃ 550 ℃
Application: Iron and steel, metallurgy, power plant, thermal power and other enterprises
Valve body material: forged steel, stainless steel 304, 304L, 316, 316L, chromium molybdenum steel
 Structure diagram of pneumatic high temperature stop valve
Structure diagram of pneumatic high temperature stop valve
Principle of pneumatic high temperature stop valve:
 
The pneumatic high-temperature stop valve adopts double acting cylinder, which can control the valve remotely by using the upper or lower chamber air intake. The valve is easy to operate and flexible. Cylinder medium: compressed air, nitrogen. The pneumatic stop valve has the advantages of simple structure, convenient manufacture and maintenance, small working stroke and short opening and closing time, and the sealing surface of closing body (valve disc) and valve seat adopts conical surface sealing, with small closing force, erosion resistance and reliable sealing. The valve seat can be a replaceable valve seat, which can be combined with the sealing surface material of the closing part to meet the working condition requirements and prolong the service life.

technical parameter

Nominal pressure 16.0--32.0(Mpa)
Shell test 24.0--48.0(Mpa)
Sealing test 17.6--35.0(Mpa)
Air supply pressure 0.4--0.7(Mpa)
Applicable media C: Water, oil and steam; P: nitrogen hydrogen mixture; R: alkali liquor and liquid ammonia

Quotation process

Valve price:

Due to the different requirements of order quantity, packaging and delivery mode, as well as the fluctuation of valve raw material price, the valve price will be greatly different. Therefore, the price of our products is not indicated on the website. Please understand.

If you select a valve product on this website, if you need to know the price or ask for relevant technical information, please contact us. We will reply immediately, and according to your requirements, we can select the right valve products for you, so that your purchasing process is easy and pleasant.

Quotation process:

1. Please fax the name (or product model) of the valve you selected, the required order quantity, packing requirements, delivery time, your company name, location and contact information of your company to 021-36311208 Or telephone number: 021-60547555。

2. After receiving the "valve selection list" and "valve model selection" list, we will provide customers with technical guidance.

3. Specific matters to be agreed: delivery time, special requirements, etc.

Ordering instructions

1、 If the customer has special requirements for the product, the following instructions shall be provided in the order contract:
(1) Valve body material (such as: plastic, cast steel, stainless steel...)
(2) Connection type (e.g. flange, thread, clamp...)
(3) Nominal diameter, pipe size
(4) Ambient temperature and pressure range
(5) Supply voltage, air pressure
(6) Fluid properties (including nominal pressure, temperature, viscosity or acidity or alkalinity)
2、 According to the special requirements of customers. (electric control, pneumatic control)
3、 If the customer provides the determined valve type and model, the customer shall correctly explain the meaning and requirements of the valve model (for details, refer to the description of valve model preparation), and sign the contract under the condition that both parties understand and agree.
4、 After the customer tells the required valve model, specification, quantity and delivery time and place, 20% of the total amount of deposit or full payment shall be timely remitted to our company's account, and the rest shall be remitted before delivery, so as to arrange delivery in time.
5、 After confirming the purchase, our company carries on the production in strict accordance with the delivery date. According to the product type and delivery time, the delivery period is 30 days. In order to ensure that the goods you ordered are in place in time, please order as early as possible.
6、 The company will deliver the goods to the branch offices of our company and deliver the goods according to the needs of our customers. After the product acceptance, our company will provide after-sales service.
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