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 part material

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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Wafer rubber lined butterfly valve

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