D71J Wafer rubber lined butterfly valve

D71J Wafer rubber lined butterfly valve Product introduction

D71J Wafer Rubber Lined Butterfly Valve is used in on-off and control flow of medium in vaired pipelines such as foodstuff,beverage,machine,chemical engineering,industrial enviromental proction,water treatment and building ect .Flanged rubber seat butterfly valve: ANSI, DIN, JIS, GB, etc.

D71J Wafer Rubber Lined Butterfly Valve Usage

Sealing Ring Material Code	Applicable Temperature	Applicable Medium
NR	≤85°C	water, air, acid-base
CR	≤85°C	water, gas, acid-base
NBR	≤100°C	water, oil
EPDM	≤120°C	water, steam, acid-base
FKM	≤150°C	water, steam, strong acid-base

D71J 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

D71J 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.

D71J Wafer rubber lined butterfly valve Main dimension

DN(mm)	PN(MPa)	Working Temperature(MPa)	L mm	D mm	D1 mm	n-Φd mm	H1 mm	H2 mm	S mm	H3 mm	Weight Kg/kilos
40	1.6 1.0	1.6 1.0	33	150	110	4-18	55	100	235	27	2
50			43	165	125	4-18	64	120	235	27	2.5
65			46	185	145	4-18	80	120	235	27	4.5
80			46	200	160	8-18	112	130	265	27	5.5
100			52	220	180	8-18	90	145	265	27	6.5
125			56	250	210	8-18	112	160	365	32	11.5
150			56	285	240	8-22	135	175	365	32	13.5

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D71J Wafer rubber lined butterfly valve

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