Electric vacuum butterfly valve - Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

Electric vacuum butterfly valve

  • [Valve model]: GID high vacuum butterfly valve
  • [Diameter specification]: DN50-DN400
  • [Structure]: Wafer type
  • [Valve body material]: Stainless steel 304, 316, 316L
  • [Nominal pressure]: 2x105～1.3x10-5
  • [Applicable temperature]: Nitrile rubber - 25~+80 ℃, fluororubber - 30~+150 ℃
  • [Application Scope]: Vacuum system, air and non corrosive gas
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  • Electric vacuum butterfly valve

Product features

GID electric high vacuum butterfly valve refers to the valve whose working pressure is lower than the standard atmospheric pressure. It is a sealed butterfly valve with zero leakage. It is mainly used to connect or cut off the air flow in the pipeline in the vacuum system, or adjust the air flow. Generally, the working medium is air and non corrosive gas. The electric high vacuum butterfly valve uses the actuator to drive the valve stem to drive the disc plate to control the opening, closing or middle position of the valve, so as to achieve the purpose of connecting or cutting off the air flow in the vacuum pipeline. The valve uses a clamping structure to clamp the sealing ring of the valve plate, which can be used not only in the vacuum state, but also in the low-pressure state.
Electric vacuum butterfly valves can be divided into three categories according to the working pressure:
 
Low vacuum valve: absolute pressure is 101325~0.133Pa
High vacuum valve: absolute pressure 0.133~1.33 × 10-6Pa
Ultra high vacuum valve: absolute pressure is 1.33 × 10-6~1.33 × 10-10Pa
Features of electric high vacuum butterfly valve:
1. The bearing adopts self-lubricating bearing, with small friction resistance.
2. It is not necessary to remove the valve from the pipeline to replace the butterfly plate seal ring.
3. The valve can cut off the medium in both directions to achieve reliable sealing and zero leakage in both directions.
4. The shaft seal adopts a special structure with automatic compensation to isolate the connection between the outside atmosphere and the pipeline, thus ensuring the vacuum degree of the pipeline.

technical parameter

Scope of application (Pa) 2x105～1.3x10-5
Air leakage rate (Pa. L/S) ≤1.3x10-6
Drive type Electric control AC220V [AC380V; DC24V]
Medium temperature (℃) Nitrile rubber - 25~+80, fluororubber - 30~+150,
Flange standard GB6070.3-85
Installation position arbitrarily
Signal feedback
Standard delivery: with passive contact
Special designation: 4~20mA DC regulating type
Form of action   Switch type (switch two position control)
  Regulating type (4-20mA signal regulating flow)

Connection size of electric vacuum butterfly valve:
Nominal diameter (DN) fifty sixty-three eighty one hundred one hundred and twenty-five one hundred and fifty two hundred two hundred and fifty three hundred four hundred
Connection size A twenty-six thirty-two thirty-five fifty fifty-five sixty
Φ D one hundred and ten one hundred and thirty one hundred and forty-five one hundred and sixty-five two hundred two hundred and twenty-five two hundred and eighty-five three hundred and thirty-five four hundred and twenty-five five hundred and ten
Φ B ninety one hundred and ten one hundred and twenty-five one hundred and forty-five one hundred and seventy-five two hundred two hundred and sixty three hundred and ten three hundred and ninety-five four hundred and eighty
n- Φ C 4- Φ nine 8- Φ nine 4- Φ twelve 12- Φ eleven 12- Φ fourteen 16- Φ fourteen
 
Application range of vacuum valve:
 
1. Vacuum valve for petrochemical industry
 
Vacuum valves used in petrochemical industry are usually used in chemical fiber industry, high-grade grease refining and other equipment systems. The valve is required to be used in both low vacuum system and pressure system. The pressure of vacuum system is generally 0.005~0.133Pa, and the pressure of pressure system is 1.0~4.0MPa. The structure type is usually direct current type, Y-shaped vacuum stop valve, which is basically the same as the ordinary Y-shaped stop valve.
 
2. Vacuum valve for metallurgical machinery industry
 
The metallurgical machinery industry usually uses vacuum or high vacuum valves for vacuum smelting, vacuum deoxidation, vacuum heat treatment, vacuum casting, electrical insulation treatment and other equipment of high-grade alloy steel.
 
3. Vacuum valve for nuclear industry
 
In the field of nuclear industry, various vacuum valves are widely used. In the research of high-energy physics and controlled thermonuclear fusion, high vacuum and ultrahigh vacuum valves are used; In isotope separation plants, high vacuum and low vacuum valves are used. It is a vacuum stop (throttle) valve with metal bellows or diaphragm as the sealing element of valve disc and high cleanliness.

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.