Specifications
Flange butterfly valve with by pass
Design: EN593
Face to face: DIN3202 F5
Flange: EN1092
Pressure test acc.to: EN12266
Flange type rubber seated butterfly valve with by pass
1. Size, pressure, medim and temp. range as listed below:
Size | DN100 to DN4000 |
Pressure | PN10, PN16, PN25, PN40 |
Suitablem | sea water, and other weak corrosive liquid etc. |
Temp. | -10~120°C |
2. Standard items:
Description | Standard |
Design and manufacture | EN593 |
Face to face | ISO5752 series15, EN558-1 series 15, DIN3202 F5 |
Flange and drilling | ISO7005-2, EN1092, |
Pressure test | EN12266 |
Top flange of bare shaft valve | ISO5211 |
Top flange on worm gearbox for e-actuator | ISO5210 |
3. Main part material items:
Name | Material |
Body | ductile cast iron, WCB, stainless steel |
Disc | ductile cast iron, WCB stainless steel, Al-bronze |
Stem | SS420, SS431 or as request |
Disc seat ring | EPDM |
Body seat ring | SS304 |
Retainer | SS304 |
Shaft bearing | Al-bronze, self-lubricating bearing |
Bolt & nuts | SS304 |
Coating | epoxy coating, thickness: min. 250 microns, color code: RAl5015, 5017, 5010, and etc. |
Notes: Other materials are available on request
4. Operating mode: bare shaft, worm gear+handwheel, electirc actuator, pneumatic actuator, hydraulic actuator, etc.
