Pneumatic 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

Pneumatic vacuum butterfly valve

  • [Valve model]: GIQ 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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  • Pneumatic vacuum butterfly valve

Product features

GIQ pneumatic high vacuum butterfly valve refers to the valve whose working pressure is lower than the standard atmospheric pressure and forms a certain vacuum. It is the element used to regulate the air flow, cut off and connect the pipeline in the vacuum system, and is generally used to control air and non corrosive gas. The valve plate of the pneumatic vacuum butterfly valve adopts a clamping structure. The sealing ring of the valve plate is clamped, and the leakage is zero. It can be used not only in vacuum state, but also in low pressure state. The pneumatic vacuum butterfly valve uses compressed air as the power to drive the disc plate to rotate for opening and closing, so as to achieve the connection or disconnection of pipeline air flow. It can be divided into double action and single action. The single action has the function of spring reset, which can automatically reset in case of failure.
Structure diagram of pneumatic vacuum butterfly valve
Features of pneumatic 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 Compressed air (4-7bar)
Medium temperature (℃) Nitrile rubber - 25~+80, fluororubber - 30~+150
Flange standard GB6070.3-85
Installation position arbitrarily
Form of action
Single acting type: air close type (B) - valve position open (FO) in case of air loss; Air to open type (K) -- valve position closed in case of loss of air (FC)
Double acting type: air to close type (B) - valve position is kept (FL) in case of loss of air; Air to open type (K) -- valve position is kept (FL) in case of loss of air
control mode   Switch type (switch two position control)
  Regulating type (4-20mA signal regulating flow)

Pneumatic high vacuum butterfly valve actuator:
Actuator model GT, AT, AW series single and double acting pneumatic actuators
Air supply pressure 0.4～0.7MPa
air connection G1/4"、G1/8"、G3/8"、G1/2"
ambient temperature -30～+70℃
Form of action Single acting actuator, double acting actuator
Optional Accessories Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc

Connection size of pneumatic high 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

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.