This is such a valve as using the self pressure variation to realize self control while keep the flow through this control system unchanged. With a flow indication, it is easily adjusted and suitable for the flow control of heat supply, air-conditioning etc. non-corrosive media. Through once adjustment before running can get the system's flow automatically constant at the required set value.

Model	PN(MPa)	Casing test pressure	Working temperature	Medium used
ZLF-16	1.6	2.4 MPa	0~100℃	Water oil etc. non-corrosive media

DN	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350
L	110	110	115	160	200	215	230	275	290	310	350	430	520	635	670
D	95	105	115	135	145	160	180	195	215	245	280	335	405	460	520
D1	65	75	85	100	110	125	145	160	180	210	240	295	355	410	470
D2	45	55	65	78	85	100	120	135	155	185	210	265	320	375	435
H1	72	72	81	108	138	138	143	170	193	208	254	289	325	357	372
H2	70	70	74	91	147	147	154	189	211	227	260	303	367	430	495
Flow control range       (m3/h)	0.1~1	0.1~ 1.5	0.2~2	0.5~4	1~6	2~10	3~15	5~25	10~35	15~50	30~80	40~180	100~300	150~1500	200~700