Electric Control Shut Off Butterfly Valves Double Eccentric 4-20mA DC

Price Negotiable

Price: Based on oroiect reauirements

MOQ: Negotiable

Delivery Time: 7 - 15 days for small orders, 15 - 30 days for large orders

Brand: WEYO

Product Description

ZDJW Electric Control and Shut-off Butterfly Valve

The ZDJW type electronic double-eccentric electric control butterfly valve is composed of an electronic actuator and a double-eccentric butterfly valve.

It uses a power supply of 220V·AC, 50Hz, and is equipped with a servo amplifier, a position signal generator, a handwheel mechanism, torque limit switches, travel switches, and a valve position indicator. It can accept 4-20mA·DC signals output by industrial control instruments or computers to control the valve opening, and can simultaneously output 4-20mA·DC valve position feedback signals. This butterfly valve features an advanced structure, convenient operation, reliable shut-off, and small leakage. The valve seat is available in both soft seal and hard seal types. It is suitable for occasions with large diameters and large flows. Due to its self-cleaning function, it is particularly suitable for regulating thick turbid slurries and media containing suspended particles.

Basic Technical Parameters
Nominal Diameter DNmm		50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
Rated flow coefficient Kv		85	140	302	600	1022	1579	3136	5340	8250	11917	16388	21705	27908	43116	166000	271000
nominal pressure MPa		1.01.6
actuator	model	381RSA-05				381RSB-10		381RSB-20		381RSC-50		381RSC-60			381RSD-150
	output torque N-m	50				100		200		500		600			1500
	input signal range	4-20mA·DC
Allowable pressure difference MPa		1.6	1.6	1.6	0.81	0.5	0.32	0.27	0.18	0.2	0.11	0.08	0.07	0.058	0.03	0.033	0.016
rated rotation angle		90°
full stroke time S		23				25				29			29			32
flow characteristic		Approximately equal percentage
leakage class		soft seal				GB/T4213Ⅵ
		hard seal				GB/T4213Ⅳ
valve seat sealing type		soft seal, hard seal
medium temperature ℃		-40～+180-40～+300
flange type		wafer type, flange type

Materials of main parts and applicable temperature range
Valve body, valve plate	ZG230-450	-40～+450℃
Valve body, valve plate	ZG1Cr18Ni9TiZG0Cr18Ni12Mo2Ti	-250～+550℃
valve stem	2Cr131Cr18Ni9Ti	-250～+550℃
valve seat seal	reinforced polytetrafluoroethylene	-40～+180℃
	metal elastic steel plate	-40～+250℃
	metal elastic steel plate	-40～+200℃
packing	XS450 rubber asbestos packing	+450℃
packing	flexible graphite	-200～+600℃

Nominal Diameter DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
ΦA	225				255		270		335			335			470
H	320	350	360	410	723	778	845	885	1025	1090	1180	1225	1270	1385	1755	1940
H1	55	65	75	110	120	135	180	210	235	274	305	330	350	400	460	520
L	43	46	64	64	70	76	89	114	114	127	140	152	152	154	165	190

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Company WEYO AUTO TECH

Location Room Milton103, Building 5 - 2, Lane 658, Jinzhong Road, Changning District, Shanghai.

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