Butterfly Valves Video

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Double Offset Butterfly Valve
Triple Offset Butterfly Valve

Butterfly valves of Weidouli are widely used in chemical industry, petrochemical industry, marine development, smelting, etc., as regulating and closing equipment.

The seat and disc of our butterfly valve employ the most advanced technology to complete the structural design. At the very moment when the disc opens and closes, the disc produces a cam action, which can pull the disc with less effort, greatly reduces the wear and deformation of the valve seat, and increases the service life of the valve.

Design Features
- Double offset, triple offset
- Soft seated or metal seated
- Zero leakage
- Blowout-proof stem
- Fire-safe and anti-static device
- ISO 5211 mounting pad
Specification
Design standard: API, ASME, EN, ISO, JIS, DIN, BS, GB
Pressure rating: CLASS 150LB~300LB, 1.0MPa~4.0MPa, JIS 10K~20K
Size range: NPS2” ~100”, DN50~DN2500
Standard connections: flange, wafer, lug, butt weld
Operation: handle, gear, pneumatic actuator, electric actuator

Samples

2. Pressure: 300LB
  Size: 36”
  Material: Titanium Gr.2
  Standard connection: Lug
  Applications: seawater desalination
2. Pressure: PN20
  Size: DN450
  Material: Hastelloy HC276
  Standard connection: Flange RF
  Applications: acetic acid transportation
2. Pressure: 150LB
  Size: 40”
  Material: SS316
  Standard connection: Lug
  Applications: wastewater treatment
2. Pressure: PN16
  Size: DN200
  Material: Monel
  Standard connection: Wafer
  Applications: chlor-alkali transportation
2. Pressure: 150LB
  Size: 10”
  Material: NAB C95800
  Standard connection: Lug
  Applications: seawater desalination
2. Pressure: 150LB
  Size: 4”
  Material: Titanium Gr.2
  Standard connection: Wafer
  Applications: ballast water