Pneumatic/Electric baffle butterfly valve

ZSRWD - Pneumatic baffle butterfly valve

ZDRWD - Electric baffle butterfly valve

Advantage: compact structure, small size and light, small friction resistance, small return difference, stable motion

Application: used to large caliber, large flow, medium and high temperature, strict leakage requirement.

Nominal dimension (mm)		150	200	250	300	350	400	450	500	600	700	800	900	1000	1200	1400	1500
Flow coefficient (Kv)	90^o	725	1290	2190	3350	4270	6350	7810	9870	14600	20500	27400	35900	42000	62600	82600	98700
Flow coefficient (Kv)	60^o	370	645	1180	1700	2030	3090	3820	4720	7120	9700	12500	16300	20000	28800	39600	44900
Rated travel		Regulating type: 60^o, two position: 90^o
Flow characteristics		Equal percentage
Nominal pressure		0.6, 1.0, 1.6MPa
Rangeability		60^o15:1; 90^o30:1
Product model	Pneumatic	ZSRWD (GIX, AL etc pneumatic piston actuator)
Product model	Electric	ZDRWD (UNIC, PSQ, HQ, DHL etc electric actuator)
Action type		Pneumatic: pneumatic to open or close; Electric: electric to open or close
Flange standard		Clamp valve or flange connection: JB78-59, JB79-59, JB/T79.1-94, JB/T79.2-94, ANSI, JIS, DIN