Inflatable seat pneumatic butterfly valve

Body:     ASTM A536 65-45-12, WCB, CF8M
Disc:      ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
Seat:      EPDM,NBR,FRM.PTFE
Body style:    wafer
Nominal diameter:    2″ – 80″ (DN50mm – DN2000mm)
Top flange:    ISO5211

Description

Inflatable Seat Butterfly Valve

The inflatable seat butterfly valve is an innovative and reliable solution for controlling and regulating fluid flow in various industrial applications. Here, we’ll discuss the features, benefits, and specifications of this special valve.

Features and Benefits

  • Inflatable Seat Design: The inflatable seat design provides excellent sealing performance and reduces wear and tear on the valve components, ensuring long service life and low maintenance costs.
  • Wide Range of Sizes: Available in sizes ranging from DN50 to DN1000, the inflatable seat butterfly valve can accommodate a variety of pipeline diameters and flow rates.
  • Various Material Options: The valve is made from a selection of high-quality materials, including ASTM A536 65-45-12, WCB, CF8M for the body, and material options like Nylon-coated ASTM A536 65-45-12, CF8, CF8M, 2507, and 1.4462 for the disc. This ensures compatibility with different media and operating conditions.
  • Multiple Seat Materials: The seat materials can be chosen from EPDM, NBR, FRM or PTFE, providing flexibility and compatibility with various fluids and operating temperatures.
  • Stainless Steel Components: The valve’s stem, lower stem, retainer, nuts, and screws are made from corrosion-resistant stainless steel for durability and long-lasting performance.

Specifications

  • Size: DN50-DN1000
  • Body Material: ASTM A536 65-45-12, WCB, CF8M
  • Disc Material: ASTM A536 65-45-12 Nylon-coated, CF8, CF8M, 2507, 1.4462
  • Seat Material: EPDM, NBR, FRM, PTFE
  • Stem Material: SS420, SS431
  • Lower Stem Material: SS420, SS431
  • Retainer Material: Nylon for DN50-DN300, SS304 for DN350-DN2000
  • Bearing Material: RPTFE with Graphite on I.D.
  • Weather Seal Material: NBR
  • Nuts Material: Stainless steel
  • Plug Material: Steel galvanized for DN50-DN300, Cover plate for DN350-DN2000 material same as body with SS304 bolts
  • Screw Material: SS304

In conclusion, the inflatable seat pneumatic butterfly valve offers a versatile and reliable solution for fluid flow control in a variety of industrial settings. With its wide range of sizes, material options, and durable construction, these valves provide excellent performance, longevity, and easy maintenance.

 

NO. Part name Material
1 Body ASTM A536 65-45-12, WCB, CF8M
2 Disc ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
3 Seat EPDM,NBR,FRM.PTFE
4 Stem SS420,SS431
5 Lower Stem SS420,SS431
6 Retalner Nylon for DN50-DN300, SS304 for DN350-DN2000
7 Bearing RPTFE with Graphite on I.D.
8 Weather seal NBR
9 Nuts Stainless steel
10 Plug Steel galvanized for DN50-DN300, Cover plate for
DN350-DN2000 material same as body with SS304 bolts
11 Screw SS304

The butterfly valve is closed and the seat is not sealed



The butterfly valve is closed and the seat is sealed



The butterfly valve is open and the valve seat is not sealed


 

Inflatable butterfly valve
Inflatable butterfly valve