Product Details

Product overview
Our ZZWP self-operated temperature control valve uses the principle of thermal expansion of liquid and incompressibility of liquid to achieve automatic adjustment. The expansion of the liquid inside the temperature sensor is uniform. Its control function is to proportionally adjust the temperature change of the controlled medium, and the volume of the temperature-sensing liquid in the sensor expands or contracts. When the temperature of the controlled medium is higher than the set value, the temperature-sensing liquid expands. Push the spool down to close the self-operated temperature regulating valve to reduce the flow of the heat medium; When the temperature of the controlled medium is lower than the set value, the temperature-sensing liquid shrinks. The return spring pushes the spool to open, increasing the flow of the heat medium. Self-operated temperature regulating valve is mainly used in heating and air conditioning, domestic hot water, petrochemical, electric power, electromechanical textile, rubber, food and other industries.

Key features
1. Small size, light weight, easy installation;
2. Accurate and reliable and long life;
3. Maintenance-free work;
4. Easy to set up mediation;
5. Passive work (no power supply, normal operation of gas source);
6. No need for expensive debugging costs;

7. The valve body seal adopts V-ring high-temperature sealing assembly, which prevents the possibility of the valve stem being too tight or leaking;

Main connection size

(DN)		20	25	32	40	50	65	80	100	125	150	200	250
L	two way	150	160	180	200	230	290	310	350	400	480	600	730
	Tee	150	160	180	200	230	290	310	350	400	480	600	730
H	two way	52.5	57.5	75	75	85.5	92.5	100	110	142.5	158	170	640
	Tee	140	140	150	160	180	200	222	230	270	280	306	474
H1	two way	500		540		580	640	700	750	820	950	1100	1280
	Tee	500		540		580	640	700	750	820	950	1100	1280
H2		350
T		235		420		430			630			1000
d		25 (sheath diameter φ28)
weight(Kg)		8	10	13	15	18	30	35	60	75	85	110	150