Overview of ZZW type self operated temperature regulating valve:

ZZW type self operated temperature regulating valve is an actuator product that does not require external energy and uses the energy of the regulated medium to achieve automatic temperature regulation. It has nominal pressures of PN16, 40, and 64; The temperature regulation range is from 0 to 270 ° C; The temperature controller connector is G1 "external thread; Flange standard: PN16、 40 according to GB9113-88; PN64 according to JB79.2-94, PN16 is a convex flange; PN40、 65 is a concave flange, and the valve body is concave.

Main component materials of ZZW type self operated temperature regulating valve

valve body	ZG230—45	ZG1Cr18Ni9Ti
valve seat	ZG1Cr18Ni12Mo2Ti	Cr18Ni12Mo2Ti
valve core	1Cr18Ni9Ti	Cr18Ni12Mo2Ti
Bellows sleeve	1Cr18Ni9Ti	Cr18Ni12Mo2Ti
Balanced corrugated pipe	1Cr18Ni9Ti
Warm package	H62	1Cr18Ni9Ti
capillary	H62	1Cr18Ni9Ti
joint	35	1Cr18Ni9Ti

Main technical parameters and performance indicators of ZZW type self operated temperature regulating valve

Nominal diameter DN (mm)		15	20	25	32	40	50	65	80	100	125	150	200	250
Nominal pressure PN (Mpa)		1.6 4.0
Rated flow coefficient (KV)	Single seat	5	7	11	20	30	48	75	120	190	300	480	760	1100
	two-seater			12	22	33	53	53	132	209	330	528	836	1210
	sleeve			11	20	30	48	75	120	190	300	480	760	1100
Rated stroke (mm)				6	8	10	14		20				35
Maximum allowable pressure difference (Mpa)		1.6									1.5	0.5
Temperature regulation range (℃)		0~70, 50~120, 100~170, 150~220, 200~270
Adjustment accuracy (%)		±5
Allowable overload value (℃)		Add 50 to the upper limit of the temperature adjustment range mentioned above
Operating environment temperature (℃)		-40~+80
Install connector (M)		G1
Capillary length (M)		3. 5
Allowable leakage amount	Hard seal (1/h)	Double seat, sleeve: 5 × 10-3 × valve rated capacity (Class II) Single seat: 10-4 × valve rated capacity (IV)
	Soft seal (m1/min)	0.15	0.15	0.15	0.30	0.30	0.45	0.60	0.90	1.70	4.0	4.0	6.75	11.10

Ordering Instructions

1. Product model and name 2. nominal diameter DN (mm 3. nominal pressure 4. flow characteristics requirements 5. valve body material and valve internals 6. medium type and temperature range 7. pressure difference before and after the valve 8. sealing form 9. matching accessories