BWWSYD Worm Gear Wafer Triple Eccentric Butterfly Valve

·Butterfly valve in the fully open position, the disc thickness is only resistance when the medium flows through the body, produced by the valve pressure drop is small.

·Unique three eccentric design, good sealing performance, can achieve zero leakage.

Material of main partsandperformance specifications

Body 、Disc	Valve seat ring	Stem	packing	Applicable medium	Suitable temperature
Carbon steel	stainless steel	2Cr13	Flexible graphite	Water, oil, gas	≤400℃
Carbon steel	Surfacing carbide	2Cr13	Flexible graphite	Water, oil, gas	≤400℃
stainless steel	stainless steel	stainless steel	PTFE	Corrosive medium	≤150℃
stainless steel	Surfacing carbide	stainless steel	PTFE	Corrosive medium	≤150℃

Dimensions

Nominal diameter DN	L	H	H0	1.0MPa		1.6MPa		2.5MPa
Nominal diameter DN	L	H	H0	D0	Z-φd	D0	Z-φd	D0	Z-φd
50	43	112	260	125	4-18	125	4-18	125	4-18
65	46	115	280	145	4-18	145	4-18	145	8-18
80	49	120	355	160	4-18	160	8-18	160	8-18
100	56	140	390	180	8-18	180	8-18	190	8-22
125	64	170	490	210	8-18	210	8-18	220	8-26
150	70	180	630	240	8-22	240	8-22	250	8-26
200	71	210	690	295	8-22	295	12-22	310	12-26
250	76	240	830	350	12-22	355	12-26	370	12-30
300	83	290	930	400	12-22	410	12-26	430	12-30
350	92	320	1010	460	16-22	470	16-26	490	16-33
400	102	350	1070	515	16-26	525	16-30	550	16-36
450	114	380	1140	565	20-26	585	20-30	600	20-36
500	127	410	1200	620	20-26	650	20-33	660	20-36
600	154	470	1340	725	20-30	770	20-36	770	20-39
700	165	550	1600	840	24-30	840	24-36	875	24-42
800	190	640	1780	950	24-33	950	24-39	990	24-48

Address : No. 11, Longhuai Road, Shuangjiang Street, Shuangyuan Economic Development Zone, Beichen District, Tianjin, China

Tel : 86-22-27553780 Fax : 86-22-27529983 E-mail : FW@bellaut.com