Home KNOWLEDGE Content

Butterfly Valve, Ductile Iron Flange Type Electric Operation

Nov 15, 2017

Butterfly valve
This series of butterfly valves are suitable to be used for industrial pipeline as two-way open-closing and regulating devices
Scope of regulation is from 4 to 90°C fully open
If the valve is one-way used, the recommended pressure direction of closing is shown on fig when the disc is in closed position

Features

1. Disk is truss framed with two-plate and flow-resistant is lower
2. Has reliable sealing structure for two-way stopping without any leakage
3. Axle sleeves are self-lubricated bearing, oiling is not need and friction drag is small during operation
4. Rubber sealing can be replaced on pipeline without removing the valve (DN>700)
5. Several kinds of actuators with reliable performance and agile operation are supplied for the laser’s selection
Wear-resisting and corrosion-resisting

Materials

Body: cast iron/ductile iron
Disc: ductile iron
Shaft: stainless steel
Body sealing ring: SS304
Disc sealing ring: EPDM
Operation: gear box 
Suitable medium: water, sea water
Main materials: grey cast iron, ductile cast, iron, alloy cast iron, carbon steel
Suitable temperature: ≤80oC
Nominal pressure: PN2.5-25bar
Nominal diameter: DN250-2800mm
Flange dimensions: BS4504 ISO2531, ISO7005 and other standards conforming to the requirements
Face to face length: BS5155, ISO5752, DIN3352, AWWAC504 and other standards conforming to the requirements