Pneumatic/Electric ellipse butterfly valve

ZSRWA - Pneumatic ellipse butterfly valve

ZDRWA - Electric ellipse butterfly valve

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

Application: used to large caliber, large flow, low pressure difference and normal leakage requirement.

Nominal dimension (mm)		80	100	125	150	200	250	300	350	400	450	500
Flow coefficient (Kv)	90^o	320	560	900	1280	2300	3500	5200	6800	9000	11000	14000
Flow coefficient (Kv)	60^o	150	265	420	585	1010	1630	2400	3200	4200	5300	6500
Nominal dimension (mm)		600	700	800	900	1000	1200	1400	1500	-	-	-
Flow coefficient (Kv)	90^o	20500	28000	36400	46000	57000	81000	105000	425000	-	-	-
Flow coefficient (Kv)	60^o	9300	12600	16500	20900	25000	35700	45550	55500	-	-	-
Rated travel		Regulating type: 60^o, two position: 90^o
Flow characteristics		Equal percentage
Nominal pressure		0.6, 1.0, 1.6MPa
Rangeability		30:1
Product model	Pneumatic	ZSRWA (GIX, AL etc pneumatic piston actuator)
Product model	Electric	ZDRWA (UNIC, PSQ, HQ, DHL etc electric actuator)
Action type		Pneumatic: pneumatic to open or close; Electric: electric to open or close
Flange standard		JB78-59, JB79-59, JB/T79.1-94, JB/T79.2-94, ANSI, JIS, DIN