Pneumatic rubber lined 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 rubber lined butterfly valve

  • [Valve model]: D671J,D641J
  • [Diameter specification]: DN50～DN1200
  • [Structure]: Midline type
  • [Valve body material]: Ductile iron, cast steel WCB, stainless steel 304, 316
  • [Nominal pressure]: PN6、PN10、PN16
  • [Applicable temperature]: -40℃～150℃
  • [Application Scope]: Gas, water, oil, corrosive medium, etc
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  • Pneumatic rubber lined butterfly valve

Product features

Pneumatic rubber lined butterfly valve (pneumatic rubber environment-friendly anti-corrosion butterfly valve) refers to vulcanizing the rubber and the valve body of the butterfly valve into a whole through high temperature. It is generally divided into flange type and wafer type according to the connection mode, and the sealing structure with different performance (full rubber lined butterfly valve, semi rubber lined butterfly valve) can be selected according to the use requirements of different working conditions, To ensure the normal use of pneumatic rubber lined butterfly valve in different applications. Pneumatic rubber lined butterfly valve is not only anti-corrosion, wear-resistant, non-toxic, mildew proof and other characteristics, but also has excellent sealing performance. With the application of chemical anti-corrosion synthetic rubber in butterfly valve, the use of rubber lined pneumatic butterfly valve has been constantly increasing.

 
Application range of pneumatic rubber lined butterfly valve:
 
Rubber lined pneumatic butterfly valve is applicable to the transmission of liquid and gas (including steam) and other media in various types of industrial pipelines, as well as the use of weakly corrosive fluid media. It can be used for on-off two position control or medium flow adjustment. The working temperature generally does not exceed 180 ℃, and the nominal pressure is ≤ 1.6MPa. It is widely used in food, medicine, chemical industry, petroleum, power, textile, paper and other places.
 
Performance characteristics of pneumatic rubber lined butterfly valve:
 
1. The rubber lining is adopted without pin, which ensures the complete isolation of medium and metal, and improves the reliability of the product.
2. The sealing surface has good abrasion resistance (the abrasion resistance of rubber is seven times that of copper).
3. It can be installed in any position and is convenient for maintenance.
4. The sealing elements can be replaced, and the sealing performance is reliable to achieve zero leakage of two-way sealing.
5. The rubber material has no toxicity, and is antibacterial and mold resistant. The product price is one third of that of stainless steel valves.

Standard specification for pneumatic rubber lined butterfly valve:
 
Design and manufacturing standard: GB/T 12238-2008
Structure length standard: GB/T 12221-2005
Connecting flange standard: GB/T 9113
Pressure and temperature class: GB/T 12224-2005
Test and inspection standard: GB/T 13927-2008
Material of pneumatic rubber lined butterfly valve parts:
 Structure diagram of pneumatic rubber lined butterfly valve
Pneumatic rubber lined butterfly valve (wafer type) Pneumatic rubber lined butterfly valve (flange type)

Valve body: cast iron, ductile iron, carbon steel, stainless steel
Butterfly plate: cast iron, ductile iron, carbon steel, stainless steel completely covered with rubber or fluoroplastic
Valve rod: carbon steel, nickel phosphorus plated, stainless steel
Seat sealing ring: natural rubber NR, neoprene CR, nitrile rubber NBR, EPDM, fluororubber FKM
Operating temperature of sealing ring: nitrile rubber X ≤ 80 ℃; Wear resistant rubber X6 ≤ 150 °; Neoprene ≤ 120 degrees; Fluoroelastomer X7 ≤ 150 degrees;

technical parameter

Nominal diameter DN50～DN1200(mm)
Pressure rating PN0.6、1.0、1.6MPa
Connection mode Wafer type, flange connection
Drive mode Pneumatic control (air source driven, compressed air)
Applicable temperature Various rubbers: - 20 ℃~150 ℃
Leakage Conforming to standards (up to zero leakage)
Sealing structure Semi rubber lined seal, full rubber lined seal
Workplace Water, gas, oil and weak corrosive fluid (at normal temperature and pressure)
control mode Switch two position mode (gas on and gas off), regulating type (4~20mA analog signal control)

Performance specification of pneumatic rubber lined butterfly valve:
Nominal diameter DN（mm） 50~1200
Nominal pressure PN（MPa） zero point six one one point six
Test pressure strength test zero point nine one point five two point four
Sealing test zero point six six one point one one point seven six
Air seal test zero point six zero point six zero point six
Form of action Double acting (air to open and air to close), single acting (normally closed, normally open)
Optional Accessories Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc

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.