FDF-MG Two-way hydraulic solenoid valve

Product Description
FDF-MG Two-way hydraulic solenoid valve
General Characteristics
l Complete range of solenoid valves for refrigeration, freezing and air conditioning plant.
l Supplied both normally closed (NC) and normally open (NO) with de-energized coils.
l Wide choices of coils for A.C. and D .C
l Suitable for all fluorinated refrigerants.
l Opening pressure diff.:
Pilot type Direct-acting type
AC:0.05-21bar AC:0-21bar
DC:0.05-17bar DC:0-17bar
l Max working pressure:30bar.
l Temperature of medium :-25℃~105℃.
l FDF is also available with flange connections.
l Versions with UL and CUL approval can be supplied to order.
Operating principle
FDFseries solenoid valves are the direct-acting type valves. The pull of the solenoid coil opens the valve port directly by lifting the seat disc off the valve seat .While de-energized in the coil , plug stem will drop and close the valve port because of spring force and its weight.
FDF-M series solenoid valves are pilot type valves. While energized in coil ,the coil emerges magnetic field and picks up plug stem to open the small orifice .With the pressure in the upside of valve reduced, the pressure difference between both side of diaphragm makes the diaphragm lift to open the main orifice. While de-energized in the coil ,plug stem will drop and close the small orifice because of spring force and its weight .The flow medium enters into upside of diaphragm through throttle hole ,then pressure in both side of diaphragm ,balances ,then the diaphragm drops and closes the main orifice.
Technical data
FDF-MG Two-way hydraulic solenoid valve
Model
FormConnection Size
Opening diff. pressure(bar)
Kv ValueMax working pressureDimensions(mm)
Rated powermminLWHACDCDC
FDF3G
ODF
6
1/4
00.27117
31
76
241210
3/8
FDF6MG
10
3/8
0.05
0.6
127
32
80
12
1/2
FDF8MG
10
3/8
1.0
137
38
88
12
1/2
137
16
5/8
162
FDF10MG
12
1/2
1.8
137
45
88
16
5/8
166
FDF15MG
16
5/8
3
174
52
96
19
3/4
22
7/8
FDF20MG
22
7/8
5
190
58
115
22
7/8 long
230
28
9/8
250
FDF25MG
28
9/8
9.8
236
72
119
35
11/8
FDF32MG
35
11/8
15
281
86
133
42
13/8
FDF40MG
42
13/8
25
312
126
158
54
17/8
Dimensions
Installation
l The valve should be installed in horizontal pipe line under vertical position. The flow direction must be in the arrow direction.
l The supply voltage must meet the rated input voltage shown on the label of the coil. Coil taking away from valve when energized in coil is forbidden.
l When brazing the valve with connect tube in system ,follow points are very important.
l Before brazing, coil must be taken away and with wet rags covering the valve body to avoid damage.
l The brazing flame must be avoided facing the valve body.
l It is better to use low temperature type silver to braze.
l For the valve with hand lever ,you must turn the lever firstly ,then make leakage test to protect diaphragm.Company Information 1.Company and show 2.Production line:
3.Certificates:
Excellent supplier of Carrier and Johnson ControlsPackaging & Shipping

Packaging Details:
FDF-MG Two-way hydraulic solenoid valve Packaging detail
1.independent inner box 2.normal carton package 31*25*21cm
and plastic palletDelivery Detail:15days after order confimedOur Services
1)Our advantage:
We are the manufacturer with more than 60 years experience in valves. Best price,quality and service, Also we can control the production status.
Shanghai Thermostat team with strong ability in designing and after sell service. Cooperation with Carrier,ALCO, Johnson Controls has improved our quality to a new level.
2)Terms of payment:T/T, L/C, Western union.
3)Shipment:average 20-25days after receiving deposit.
4)Delivery: Shanghai ,by sea or air.
5)Gurantee:One year since delivery.
6)Inspection:100% testing for all the valves.
7)All kinds of CERTIFICATE OF ORIGIN.
Welcome to chooseShanghai Thermostat , we are always ready!FAQ
1.Q: What is your main market?
A: Our main market is north America, especially USA.
2.Q: Are you products standard?
A: Our model is standard, if you have specific demand, pls tell us.
3.Q: Do you have interest to do our own design items?
A: Absolutely! We have big interest.