Double Flange Butterfly Valve with Vulcanized Seat

Materials Range:

Body:CI/DI/WCB/SS304/SS316

Disc:DI/SS304/SS316/C95400

Stem:SS410/SS420/SS416/SS431
Seat:EPDM/Neoprene/NBR

Type Available: Flanged type.
Sizes Available: DN50mm to DN2600mm 
Pressure Range: PN (MPa): 1.0, 1.6, 2.0, 2.5
Materials Standard: Others on request
Basic Design: BS5155/AWWA C504
Face to Face Dimension: BS5155 Short, ISO5752 (Series 13), DIN 3202 F16
Inspection & Testing: API 598,
Flanged End Dimension: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,BS 10 Table D, BS 10 Table E

Top flange: ISO 5211
Suitable Mediums: Fresh water, sea water, gas, oils, acids, alkalis, etc
Suitable Temperature: -26-82C

Design characters:
Correcting holes are made on flange according to standard, easy correcting during the installation.
Through-out bolt or one-side bolt used. Easy replacing and maintenance.
Shaft and disc connected by pin, torque screw or non pin, to achieve the opening and closing.