DI Double Eccentric Butterfly Valve

ADVANTAGES

Features:
Three Eccentric Design
Stainless Steel sealing, good sealing performance with both low temperature and high temperature, anti-corrosive, long life
Sealing seat anti-frictional and long life
Bi-Directional
Fire safe Design
Low Friction Body Seat
Adoptive Standards:
Valve Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
Standard Test :
Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test: 1.1 times the working pressure with water.
Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.
Special Test: On request, any other test can be carried out according to special instruction by client.

PARAMETER INFORMATION

el		D343H-10	D343H-10P	D343H-10R
		D343H-16	D343H-16P	D343H-16R
		D343H-25	D343H-25P	D343H-25R
		D343H-40	D343H-40P	D343H-40R
Working Pressure（MPa）		1.0~4.0
Temperature（℃）		≤425	≤200
Medium		Water, Oil, or Non corrosive	nitric acid	Acetic Acid
Material	Body, Disc	WCB	CF8/304	CF3M/316L
	Stem	2Cr13	304	316L
	Body Sealing	bead welding 507	－	－
	Disc Sealing	304＋flexible graphite	304＋PTFE	304＋PTFE
	Packing	flexible graphite	PTFE	PTFE

mm	inch	L		H	Dt343H			Dt643H			Dt943H			PN4.0MPa
mm	inch	Short Pattern	long Pattern	H	H1	A1	B1	H2	A2	B2	H3	A3	B3	D	D1	Z-d
50	2	108	150	112	350	180	200				530	250	255	165	125	4-18
65	2.5	112	170	115	370	180	200	625	355	92	550	250	255	185	145	8-18
80	3	114	180	120	380	180	200	625	355	92	565	250	255	200	160	8-18
100	4	127	190	138	420	180	200	645	355	92	600	250	255	235	190	8-22
125	5	140	200	164	460	180	200	675	550	138	640	250	255	270	220	8-26
150	6	140	210	175	555	270	280	715	550	138	705	300	315	300	250	8-26
200	8	152	230	208	605	270	280	800	550	138	775	300	315	375	320	12-30
250	10	165	250	243	680	270	280	850	550	138	945	300	315	450	385	12-33
300	12	178	270	283	800	380	420	925	450	220	1070	300	315	515	450	16-33
350	14	190	290	310	830	380	420	1035	450	220	1140	300	315	580	510	16-36
400	6	216	310	350	915	450	470	1070	650	280	1210	300	315	660	585	16-39
450	8	222	330	380	960	480	490	1190	650	280	1335	575	714	685	610	20-39
500	20	229	350	410	1020	480	490				1415	575	714	755	670	20-42