2/2-Way Solenoid Valve, Direct-acting Type 742
G 1/4, G 3/8 Advantages/Benefits
EEx ed IIC T4
Normally closed
Body Materials:
brass, stainless steel
Metal seal between guide
tube assembly and body
Push-over coil
Design/Function Applications
The Type 742 is a direct-acting Single-phase bridge and varistor are • Dosing systems
plunger-type solenoid valve, housed in a flameproof enclosure to • Analytical devices
normally closed by spring action, protection classification "d". Coil • Fuels
assisted by the fluid pressure and terminal box correspond to • Petrochemical
(circuit function A). When energi- protection classification "e ", i.e. • Compressed air motors
zed, the armature and seal are increased safety. • Offshore-technology
drawn into the solenoid coil to open • Vacuum
the valve. The solenoid epoxy encapsulation
efficiently dissipates the heat
generated by the coil.
Fluid Control Systems
2/2-Way Solenoid Valve, Direct-acting Type 742
Technical Data
Circuit Function Body Material
A 2/2-way valve, Body of brass, seat 1.4305
normally closed Body and seat of stainless steel 1.4410
Valve internals 1.4105, 1.4303
PTB.-No. Ex-88.B.1049
Specifications
2)
Orifice Kv-Value QNn-Value Pressure Range Weight
1)
DN Water Air
Liquids Gases
[mm] [m 3 /h] [l/min] [bar] [kg]
2 0,12 130 0 - 20 0,9
4 0,50 540 0- 3 0,9
6 0,80 860 0- 0,5 0,9
1)
Measured with 6 bar upstream pressure and 1 bar pressure drop across the valve at +20 °C, 2)
Also suitable for technical vacuum.
All pressures quoted are gauge pressures with respect to the prevailing atmospheric pressure
Operating Data (Valve) Operating Data (Actuator)
Seal Materials / Fluids Handled / Temp.-Range Operating voltages 24, 110, 220, 240 V/UC
(universal current)
FPM Hot air, oxygen, per-solutions,
hot oils, oils with additves A bridge rectifier has been incorporated in the solenoid
-10 to +90 °C system, which makes it suitable for both direct and alter-
nating current operation for the same nominal voltage
PTFE Water, alcohols, oils, fuels, hydraulic (universal current to DIN 40 700).
substances, organic solvents
-20 to+90 °C Voltage tolerance ±10 %
Power consumption 10 W (hold)
For more detailed information please refer to resistance
chart (Leaflet-No. 1896009).
Rating IP 65
Max. ambient temp. +40 °C Duty cycle 100% continuously rated
Max. viscosity approx. 21 mm2/s Cycling rate up to 600 c.p.m.
Response times opening approx. 30 ms
closing approx. 60 ms Installation / Accessories
Installation as required, but preferably
The response times have been measured with water at a with solenoid system upright
working pressure of max. 6 bar. They depend upon
pressure and viscosity of the fluid handled. Electrical connection • moulded-in cable H05RN-F3
G, 3 x 0,75 mm2, length 3 m,
with tension relieving cable
gland
• junction box on request
Safety fuse A safety fuse with a medium
response time and rated
according to the nominal current
should be incorporated in the
circuit. The nominal current
rating is printed on the actuator.
2/2-Way Solenoid Valve, Direct-acting Type 742
Dimensions in mm
SW 22
18
53,5
43
6
h2
105
100
3000
7
17
NPT 1/4
G 1/4
48
SW 27
12 bei G 1/4
34,5
74,5
10 bei NPT 1/4 h2: brass = 94
stainless = 93
Stainless steel body DN 4 - 6
11
94
6,5
105
10,8
Ø26
40
14
12
37
56
56
76
Brass body DN 2 - 6
2/2-Way Solenoid Valve, Direct-acting Type 742
Ordering Chart (Other Versions on Request)
Circuit Orifice Flow Rate Port Pressure Body Seal Weight Voltage/ Order-No.
1)
Function Water Air Connection Range 2) Material Material Frequency
DN Kv-Value QNn
[mm] [m 3 /h] [l/min] [mm] [bar] [kg] [V/Hz]
A 2,0 0,12 130 G 1/4 0-20 Brass PTFE 0,9 024/UC 076 307 D
110/UC 076 308 N
220/UC 076 309 P
240/UC 076 310 B
4,0 0,50 540 G 1/4 0- 3 Brass PTFE 0,9 024/UC 089 500 H
110/UC 089 501 W
220/UC 089 502 X
240/UC 089 503 Y
Stainless PTFE 0,9 024/UC 076 311 Y
110/UC 076 312 Z
220/UC 076 313 S
240/UC 076 314 T
6,0 0,8 860 G 3/8 0- 0,5 Brass PTFE 0,9 024/UC 089 512 Q
110/UC 089 513 R
220/UC 089 514 J
240/UC 089 515 K
G 1/4 0- 0,5 Stainless FPM 0,9 024/UC 076 315 U
110/UC 076 316 V
220/UC 076 317 W
240/UC 076 318 F
1)
Measured with 6 bar upstream pressure and 1 bar pressure drop across the valve at +20 °C.
2)
Also suitable for technical vacuum.
Order-No. for Accessories
Safety Fuses [mA] Order-No.
24 V 1000 007 077 V
110 V 315 007 055 X
220/240 V 160 007 070 A
In case of special requirements We reserve the right to make technical 710-GB/ 2-0118
please consult for advice. changes without notice.
