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Worm Gear Wafer 4 Inch Butterfly Valve

Quantity:
  • Xiamen, China

  • 4900 Sets Per Month

  • L/C, T/T, D/P, Western Union, Paypal

  • DN40-DN300

  • Normal Temperature (-40°C<T<120°C)

  • Soft Sealed

  • Casting

  • Industrial Usage, Water Industrial Usage, Household Usage

  • Ductile Iron/Stainless Steel

  • Ductile Iron

  • Stainless Steel

  • Epoxy Coated

  • Pn10/16

  • None/OEM

  • Standard Export Package

  • DN40-DN600

  • Fujian

  • 8481801090

  • Manual

  • Wafer

  • Centre Sealing

  • Force Sealed

  • Normal

  • Low Pressure (Pn<1.6mpa)

Worm gear wafer 4 Inch butterfly valve

Introduction
A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.

Specification
Worm Gear Wafer 4 Inch Butterfly Valve


Materials of major parts
No. Part Material
1 Body Ductile Iron
2 Disc DI/SS/Bronze
3 Stem SS304/316
4 O-ring EPDM/NBR/VITON
5 Seat EPDM/PTFE
6 Bushing PTFE/Bronzel
7 Hand Wheel Cast Iron
8 Worm Gear Cast Iron

Dimensioons(mm)
DN L L1 Φ H1 H2 H3 N Φ3
40 42 250 110 66.5 142 26 4 18
50 42.3 260 125 66.5 142 26 4 18
65 43.3 280 145 74.1 151 26 4 18
80 45.6 284 160 94 161 26 4 18
100 50.6 357 180 110.8 181 26 4 18
125 53.6 374 210 128.8 191 28 4 18
150 54.4 374 240 140.5 204 28 4 22
200 59.6 384 295 172.5 238 29 4 22
250 65.4 384 350 206.2 268 29 4 22/26
300 75 537 400 235.8 306 30 4 22/26
Photoes
Worm Gear Wafer 4 Inch Butterfly Valve

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Worm Gear Wafer 4 Inch Butterfly Valve

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