China Supplier Refrigeration Regulating Pilot Valves

• Media: Ammonia, Fluorine,Propane,Propylene,etc
• Temperature: -50c to +150c
• Actuator: Manual
• Material: Carbon Steel
• Structure: Angle Type Globe Valve
• Application: Refrigeration Valve
• Model NO.: AM3
• Standard: DIN, GB, ANSI
• Transport Package: Individual Box for Each Valve
• Trademark: AMG
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000PC/Year

Product Description

DESCRIPTION
Flow regulating valves, servo-operated by different pilot valves screwed-in the main valve or mounted in an external pilot line.

The AM3 are designed to use with ammonia and other common fluorinated refrigerants, for liquid,suction, discharge or defrosting lines, and they have three ports, P,S1 and S2, to screw-in two or three pilot valves.

The relations between the ports where it is possible to screw-in the pilot valves on the AM3, are showing below:
= The pilot valves on the ports s1 and s2 are connected in series.
The main valve will be closed if any one of the pilot is closed.The main valve will be opened if both of the pilots are opened.
= The pilot valve screwed-in P, is connected in parallel with the pilot
valves in ports s1 & S2,so the AM3 valve will be open if the pilot in Pis open, irrespective if the s1 or s2 pilot valves, are open or closed.The main valve will be closed if the pilot in P is closed and at least one of the pilot valves in s1 or s2,are closed at the same time.

The degree of opening of AM3 valves is function of the differential pressure between the inlet and outlet, so if the pressure difference is△p = 0.3 bar,the main valve will be fully open,and if it is △p =0.2-0.3bar, the degree of opening will be correspondingly proportional to △p.
PARAMETER

Name	Type	(mm) Size (mm)								kv	Cv
		DN		ΦD	Φd	A	H	L	L1
AM3  Main Valves Series	AM320	3/4"	20	27	20	65	150	190	125	6	7
	AM325	1"	25	34	25	65	150	190	125	9	10.5
	AM332	1.25"	32	42	32	70	175	245	170	16	19
	AM340	1.5"	40	48	40	70	175	245	170	30	35
	AM350	2"	50	60	50	70	180	255	180	40	47
	AM365	2.5"	65	76	65	85	205	295	220	75	88
	AM380	3"	80	89	80	95	225	330	250	140	164
	AM3100	4"	100	108	100	125	260	415	330	200	234