Pneumatic high temperature stop valve - Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

Pneumatic high temperature stop valve

  • [Valve model]: J641H，J641Y，J641W
  • [Diameter specification]: DN50～DN300
  • [Structure]: Straight through
  • [Valve body material]: Forged steel, stainless steel 304, 316, 316L, chrome molybdenum steel
  • [Nominal pressure]: PN160-PN320
  • [Applicable temperature]: -29℃-550℃
  • [Application Scope]: Steel, metallurgical, power plant, thermal power and other enterprises
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  • Pneumatic high temperature stop valve

Product features

Pneumatic high temperature stop valve is a stop valve that uses compressed gas to control the opening and closing of the valve. Its opening and closing are performed by the supply of compressed gas. The opening and closing device with heat dissipation device is connected to the pipeline by butt welding or flange, which is suitable for two position control and opening and closing operations in high temperature and high pressure fields.
Technical parameters of pneumatic high temperature stop valve:
 
Drive mode: pneumatic control
Air seal test: 05-0.7mpa
Connection mode: flange type, butt welding type
Nominal pressure: 16, 25, 32MPa
Applicable temperature: 425 ℃ 450 ℃ 500 ℃ 550 ℃
Use: steel, metallurgy, power plant, thermal power and other enterprises
Valve body material: forged steel, stainless steel 304, 304L, 316, 316L, chrome 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 a double acting cylinder, and the valve is remotely controlled by upper chamber air intake or lower chamber air intake. The valve is easy and flexible to operate. Cylinder medium: compressed air, nitrogen. The pneumatic stop valve has simple structure and is easy to manufacture and maintain; Small working stroke, short opening and closing time; The sealing surface between the closing body (valve disc) and the valve seat is sealed with a conical surface, with small closing force, erosion resistance and reliable sealing. The valve seat can be a replaceable valve seat, which can be matched with the sealing surface material of the closing element in any combination to meet the working condition requirements and extend 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, steam; P: Nitrogen hydrogen mixture; R: Alkali liquor, liquid ammonia

Quotation process

Valve price:

Due to the different requirements of order quantity, packaging and delivery method, and the fluctuation of the price of valve raw materials, the price of valves will have a big difference immediately, so our products have not been marked with prices on the website, please understand.

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

Quotation process:

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

2. After receiving the customer's purchase list, our company will provide the customer with various services such as valve quotation "price list", model selection "valve model" and technical guidance as soon as possible.

3. Specific matters: delivery date, special requirements, etc.

Ordering Instructions

1、 If the customer has special requirements for the product, the following instructions must be provided in the order contract:
(1) Valve body material (such as plastic, cast steel, stainless steel...)
(2) Connection type (such as flange, thread, clamp, etc.)
(3) Nominal diameter, pipe size
(4) Ambient temperature and pressure range
(5) Power supply voltage, air supply pressure
(6) Fluid properties (including nominal pressure, temperature, viscosity or acid-base)
2、 The company configures various driving devices according to the special requirements of customers. (electric control, pneumatic control)
3、 If the customer provides the determined valve type and model, the customer should correctly explain the meaning and requirements of the model (see the description of valve model preparation for details), and sign the contract on the condition that both the supplier and the buyer have the same understanding.
4、 After the customer tells the required valve model, specification, quantity, delivery time and place, the deposit of 20% of the total amount or the full payment for goods shall be remitted to our company's account in time, and the rest of the payment for goods shall be remitted before shipment, so as to arrange shipment in time.
5、 After the purchase is confirmed, our company will produce in strict accordance with the delivery date. The product processing cycle is generally 3 to 30 days, depending on the type and quantity of the order, and the specific delivery time is subject to the contract. In order to ensure that the goods you ordered are in place in time, please try your best to order earlier.
6、 Our company provides network distribution services according to the needs of customers, delivering goods to the branches (offices) of customers in major cities, and implementing door-to-door delivery services. After the products are accepted, our company will provide after-sales service.