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Model: D371X
Nominal diameter: DN40 ~ 350mm
Nominal pressure: PN0.6 ~ 1.6MPa
Temperature: ≤120 ℃
Main material: ductile iron, cast , steel, stainless steel
Design criteria: GB / T12238-1989, lS0 10631-1994 or BS EN593-1998
Flange size GB / T17241.6-1998, IS0 7005 -2 or
BS EN 1092-2002 Length of construction: GB / T1 2221-1989, lS0 5752-1988 or BS EN558-1
Pressure test: GB / T13927-1992, JB / T9092-1999, lS0 5028-1993 or BS 6755- l-1986

Wafer soft seal butterfly valve uses and characteristics
 soft seal butterfly valve for temperature ≤120 ℃, nominal pressure ≤16MPa food, pharmaceutical, chemical, oil, electricity, alloy, construction, textile, paper and other drainage, gas pipe for Regulate flow and shut off media. 
 
 The main features of soft butterfly valve seal
  1, the design is novel, reasonable, unique structure, light weight, quick opening and closing. 
 2, torque is small, easy to operate, labor-saving smart. 
 3, can be installed in any location, easy maintenance. 
 4, seals can be replaced, sealing performance and reliable two-way seal to achieve zero leakage. 
 5, sealing material aging resistance, corrosion resistance, long life and other characteristics. 
 
 Wafer sealing butterfly valve main dimensions and weight (PN1.0 / 1.6MPa)

DN (mm)	A	B	C	D1	L	n-Φ	K	E	4-Φ1	Φ2	G	Weight WT (kg)
50	140	80	43	125	32	4-19	77	57.15	4-6.7	12.6	100	3.34
65	152	89	46	145	32	4-19	77	57.15	4-.67	12.6	120	3.94
80	159	95	45.21	160	32	8-19	77	57.15	4-.67	12.6	127	4.05
100	178	114	52.07	180	32	8-19	92	69.85	4-10.3	15.77	156	5.48
125	190	127	55.5	210	32	8-19	92	69.85	4-10.3	18.92	190	7.66
150	203	139	55.75	240	32	8-23	92	69.85	4-10.3	18.92	212	8.5
200	238	175	60.58	295	45	8-23	115	88.9	4-14.3	22.1	268	25
250	268	203	68	350	45	12-23	115	88.9	4-14.3	28.45	325	31.4
300	306	242	76.9	400	45	12-23	140	107.95	4-14.3	31.6	403	45.9
350	368	267	76.17	460	45	16-23	140	107.95	4-14.3	31.6	436	54