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Pneumatic vacuum butterfly valve

  • [valve model]: GIQ high vacuum butterfly valve
  • [diameter specification]: DN50-DN400
  • [structural form]: Clip on 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 gases
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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 to form a certain vacuum. It is used to adjust 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 pneumatic vacuum butterfly valve adopts clamping structure. The sealing ring of the valve plate is clamped, and the leakage is zero. It can be used not only in vacuum but also in low pressure. Pneumatic vacuum butterfly valve is powered by compressed air and drives the disc to rotate to open and close, so as to connect or cut off the air flow in the pipeline. It can be divided into double action and single action. The single action has the function of spring reset and can be 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 low friction resistance.
2. The butterfly plate seal ring can be replaced without removing the valve from the pipeline.
3. The valve can cut off the medium in both directions, realize reliable sealing and zero leakage in both directions.
4. The shaft seal adopts a special structure with automatic compensation to separate the external atmosphere from the pipeline, so as to ensure the vacuum degree of the pipeline.

technical parameter

Application range (PA) 2x105~1.3x10-5
Air leakage rate (pa.l / s) ≤1.3x10-6
Driving form Compressed air (4-7 bar)
Medium temperature (℃) Nbr-25 ~ + 80, fluororubber-30 ~ + 150
Flange standard GB6070.3-85
Installation position arbitrarily
Form of action
Single acting type: air to close type (b) - valve position open (FO) in case of gas loss; air opening type (k) - valve position closing (FC) during gas loss
Double acting type: air close type (b) -- valve position keeping (FL) when losing gas; air opening type (k) -- valve position keeping during gas loss (FL)
control mode   Switch type (switch two position control)
  Regulating type (4-20mA signal regulating flow size)

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 and double acting actuator
Optional Accessories Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, hand wheel mechanism, etc

Connection dimension 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
ΦD 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
ΦB 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-ΦC 4-Φ9 8-Φ9 4-Φ12 12-Φ11 12-Φ14 16-Φ14

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 customer's purchase list, our company will provide customers with valve quotation "price list", model selection "valve model" and technical guidance as soon as possible.

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、 The company configures all kinds of 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 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 different types and quantities of orders, the product processing cycle is generally 3 to 30 days, 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 order as early as possible.
6、 According to the needs of customers, our company provides network distribution services, delivering goods to the branches (offices) in major cities, and providing door-to-door delivery service. After the product acceptance, our company will provide after-sales service.