DOUBLE ECCENTRIC BUTTERFLY VALVE
With EN1074-1 & EN1074-2 type approval certification, For use with drinking water, WRAS approved
Valve design to EN 593, BS5155, DIN3354
Flange to EN 1092, ASME B16.5, ASME B16.1, AWWA C207
Face to face length to EN 558-1 / ISO 5752 series 14 or series 13
Part No | Description | Material | Part No | Description | Material |
1 | Gear housing | Ductile iron,GJS400-15 | 10 | Retainer ring | Stainless steel, 1.4571 |
2 | Key | Stainless steel, 420 | 11 | Disc seal ring | Rubber, EPDM |
3 | Upper shaft | Duplex SS, 1.4462 | 12 | Screw | Stainless steel,A2-70 |
4 | Packing gland | Ductile iron,GJS400-15 | 13 | Taper pin | Stainless steel, 420 |
5 | O ring | Rubber, EPDM | 14 | Valve disc | Ductile iron,GJS400-15 |
6 | Bolt | Stainless steel,A2-70 | 15 | Lower shaft | Duplex SS, 1.4462 |
7 | Shaft bearing | Bronze, QAl9-2 | 16 | Shaft bearing | Bronze, QAl9-2 |
8 | Valve body | Ductile iron,GJS400-15 | 17 | O ring | Rubber, EPDM |
9 | Body seat | Stainless steel, 316 | 18 | Shaft cover | Ductile iron,GJS400-15 |
Tilting Disc Check Valve
offers unrivaled versatility and reliability while providing a significant cost savings over the life of the valve
Valve disc automatic opening and closing upon pipeline flow and pump operation status.
Energy efficient, non-slam closing
This kind of butterfly valve has the unique advantages:
– Keeping the main valve closed and bypass valve open. That can maintain minimum flow across the valve to avoid water stagnancy and maintain water quality.
– Equalize the pressure across the valve to enable manual opening in case of power unavailability.
BFV-02-QJ Rubber lined Butterfly Valve, internally with ebonite lining of thickness 3mm or 5mm.
The typical applications of this type of butterfly valves are chemical plants, sea water treatment, desalination projects, nuclear power plants, water treatment, TSE, sewage etc.
Rubber-Seated Butterfly Valves to AWWA C504, designed for drink water, sea water, cooling water etc. NSF/ANSI 61 approval is available.
Design is rated for B valves (max. flow velocity 16ft/sec-4.9m/sec), and absolutely compliance with the requirements in min. shaft diameter, min. body shell thickness and actuator test cycles, workshop testing and Proof-of-design tests etc.