2/2 way - Normally Closed - Direct Operated
Fittings: G = 1/4”
General description:
PARKER series 158 solenoid valves are
direct operated and do not require a minimum
differential pressure to operate.
They are used for steam and superheated
water where the flow rate has to be altered
by means of a manual regulator.
Series 158 valves are normally closed.
Temperatures:
The working temperature for media is:
+140°C for the version with a seal of ethylene
propylene (EPDM) and +180°C for the
version with a seal of Teflon (PTFE).
The minimum temperature for media is -
10°C for the two versions.
The maximum ambient temperature is:
with class “F” coils +50°C
with class “H” coils +80°C
Application:
Series 158 solenoid valves are ideal for the
control and regulation of steam in
equipment such as:
• Ironing machines;
• Steam-cleaning machines;
• Steam sprayers.
Coils:
For series 158 valves class “F” coils
(155°C) are available encapsulated in thermoplastic
containing 30% glass fiber
(types: ZB, YB) and class “H” coils (180°C)
are available encapsulated in thermoplastic
containing 40% glass fiber (type ZH).
All the coils are for continuous service,
100% E.D.
The rated voltage tolerance is:
±10% for A.C. power supply and
+10% -5% for D.C.
The “Z” and “Y” coils can be used on a.c.
with a frequency of 50/60 Hz (dualfrequency)
The “Z” coils have Faston terminals for DIN
43650A connector with protection to IP65.
The “Y” coil has terminals with 2 x 1,000
mm cables with protection to IP67 .
Installation:
The valves can be mounted in any position
without jeopardising their operation. It is
however advisable to install them with the
coil in a vertical position above the body