Wafer rubber lined butterfly valve
Wafer rubber lined butterfly valve Product introduction
Wafer Rubber lined butterfly valve is widely used in industries such as water projects, urban water supply & drainage, sewage treatment, electric power, petroleum, petrochemical, heat supply, shipbuilding, medicine and metallurgy. Ewuipment used in regulating or cutting off medium in pipeline.
Wafer Rubber lined butterfly valve Product Feature
1.Centerline structure, with pin on the through shaft or pinless double half shaft design.
2.Disc has two-way bearing, no installation direction requirements.
3.End flange can meet different connection standards at the same time(DN50mm-300mm).
4.Holes for the end flange is drill hole(DN350mm-600mm).
5.Good performance of vulcanized seat, highly stretchable and low torque.
6.Square and short neck, easy to stick scutcheon and cost saving.
Wafer rubber lined butterfly valve Technical parameters
| Description | Standard |
| Design and manufacture | EN593 |
| Face to face | ISO5752 series14, EN558-1 series 14, DIN3202 F4 |
| 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 |
Wafer rubber lined butterfly valve Main connection dimensions
| Name | Material |
| Body | ductile cast iron, WCB, stainless steel |
| Disc | ductile cast iron, WCB, stainless steel, Al-bronze |
| Stem | SS420, SS431 |
| Disc seat ring | EPDM,NBR,VITON |
| Body seat ring | SS304 |
| Retainer | SS304, SS316 |
| Shaft bearing | Al-bronze, self-lubricating bearing |
| Bolt & nuts | 8.8 grade galvanized, SS304 |
| Coating | epoxy coating, thickness: min. 250 microns, color code: RAl5015, 5017, 5010, and etc. |
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