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H Y D R A U L I C , P I S T O N - S T Y L E P R E S S U R E S W I T C H
PSW18H Series
APPLICATION
Ideal for Control of Hydraulic, Lubricating and Light Fuel Oils
FEATURES
Rugged Compact Design
Convenient Setpoint Adjustments
High Cycle Life
Vibration Resistant to 15g
UL and CSA Approved Microswitch
Gold Plated Contacts
SPECIFICATIONS
Ports
1/4" NPT or 7/16-20 UNF (SAE-4)
Adjustment Range
70 to 1015 PSI (5 to 70 bar) and
150 to 2320 PSI (10 to 160 bar)
Proof Pressure*
5800 PSI (400 bar)
Temperature Rating
Ambient
-13° to 175° F (-25° to 80° C)
Media
-13° to 175° F (-25° to 80° C)
Max. Viscosity
450 SSU (1000 mm
Switching Element
SPDT Microswitch
Max. Switching Rate 100 cycles/minute
Repeatability
±3%
Electrical Connector
DIN Style Plug with Removable
Cable Plug Adapter
*Note: Do not subject switch to proof pressure during normal operation.
Even short pressure peeks must not exceed proof pressure.
MATERIALS OF CONSTRUCTION
Housing
Aluminum / Steel
Seal
Dynamic
PTFE
Static
Buna-N
PART NUMBER IDENTIFICATION
PART NUMBER
PSW18HA
70 – 1015
PSW18HB
150 – 2320 (10 – 160)
PSW18HC
70 – 1015
PSW18HD
150 – 2320 (10 – 160)
Numbers in parentheses indicate measurement in bar.
*Note: Hysteresis is not adjustable. Maximum values are shown.
2
/s)
PRESSURE RANGE
PSI
(5 – 70)
(5 – 70)
Terminals 1 - 2: Contacts open on rising pressure.
Terminals 1 - 3: Contacts close on rising pressure.
1.18 (30)
.79 (20)
Pressure port
material:
430 SS
All dimensions in inches (mm)
HYSTERESIS*
PSI
Lower Range
Upper Range
260 (18)
290 (20)
260 (18)
435 (30)
260 (18)
290 (20)
260 (18)
435 (30)
3
2
p
1
Switch Adjustment
2.95 (75)
1.18 (30)
1
/
NPT, or
4
7/16-20 UNF
PORTS
Female
1/4" NPT
1/4" NPT
7/16 – 20 UNF
7/16 – 20 UNF
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