Pneumatic Expansion Butterfly Valve DN200 Is Suitable for Dust Conditions Tianjin

• Customization: Available
• Media: Water, Oil, Gas, Seawater, Food, Steam, Air etc
• Driving Mode: Lever, Handle, Gear Operator, Pneumatic Actuato
• Structure: Centre Sealing
• Seal Form: Force Sealed
• Valve Stem: Extended
• Work Pressure: Low Pressure (Pn<1.6mpa)
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Soft Sealed
• Valve Body: Casting
• Standard: API609 En593 BS5155 En1092 ASME16.47 ASME 16.5
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Body: Di/Wcb/CF8/CF8m/C958
• Disc: Di/CF8/CF8m/2507/1.4529/C958
• Seat: EPDM/Silica Gel
• Top Flange: ISO 5211
• End Standard: Pn6/10/16/150lb/JIS5K/10K
• Transport Package: Plywood Case or Carton
• Specification: DN40-DN600
• Trademark: CVVT
• Origin: China
• Production Capacity: 100000units

Product Description

1. No pin connection between Disc and stem
     Stem through the valve plate, the use of hexagonal design of the clamp to drive the valve plate, is our unique design characteristics. This design prevents the stem from coming into contact with the medium in the line . And this structure makes the valve disassembly simple, just take out the circlip spring and then pull out the stem from the valve plate. Pinless butterfly valve Cv value is higher than other similar products, less turbulence, good pressure recovery.

2.Compatibility

   Top flange meets ISO5211 standard. Manual and electric actuator can be installed directly. Extended neck for all valves. The pipe insulation must be at least 50mm long. The standardized design allows our actuators (handle, gear reducer, pneumatic and electric actuators) to be mounted directly on the valve without support. Easy field installation, reduced error and height.

3.Disc design features
     One-piece design, the edge of the spherical machining and hand polishing, has the advantages of low torque force, long service life of the seat and good sealing performance. When applied in the field of health, it can completely prevent the storage of dust particles. Valve plate surface can be sprayed: PTFE, ETCFE, nylon, tungsten carbide, ceramic, or coated ethylene propylene, butyl blue, fluorine rubber, PTFE and other rubber or anticorrosive material surface, prevent metal surface erosion and corrosion. Valve plate mandrel design has better bearing effect. The valve plate is built with hexagonal groove, which closely matches the valve stem.

4.Design characteristics of bushing packing
     Blowout proof design:The valve stem is  prevented from blowing out by the  anti-blowing circlip, and it is convenient to  disassemble and assemble.
      Shaft sleeve:Corrosion resistant PTFE  valve bushing or copper bushing can  absorb side thrust under heavy load
       Valve shaft packing:Self-expanding  Y-ring packing and O-ring double seal   design, can ensure the absolute two-way  seal.
   
     
      

Product Description

 

Certifications

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Design&Development -UG,AutoCAD

Dimension Measurement Inspection 

Our Advantages

.The expansion seat reduces the wear degree of the valve plate and seat
.Long valve life
.Minor seat wear
.The valve plate collision is extremely small
.Ultra-low torque requirements
.Large sealing contact area
.Double bearing to prevent stem deformation
.Detachable seat, easy maintenance

Certificates-ISO9001,ISO45001,ISO14001 SGS
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