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 |
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 | |
Media | |
Max. Viscosity | 450 SSU (1000 mm2/s) |
Switching Element | SPDT Microswitch |
2 3
p
1
Terminals 1 - 2: Contacts open on rising pressure.
Terminals 1 - 3: Contacts close on rising pressure.
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 |
1.18(30)
.79 (20)
.21 (5.3) | 2.83 (72) |
.59 (15) | .31 (8) |
|
Pressure port material:
430 SS
Switch Adjustment
2.95(75)
1.18(30)
1/4 NPT, or
PART NUMBER IDENTIFICATION
All dimensions in inches (mm)
PART NUMBER | PRESSURE RANGE | HYSTERESIS* | PORTS | ||||
|
| PSI |
|
| PSI |
| |
|
|
|
| Lower Range |
| Upper Range | Female |
PSW18HA | 70 | – 1015 | (5 – 70) | 260 (18) |
| 290 (20) | 1/4" NPT |
PSW18HB | 150 | – 2320 (10 – 160) | 260 (18) |
| 435 (30) | 1/4" NPT | |
PSW18HC | 70 | – 1015 | (5 – 70) | 260 (18) |
| 290 (20) | 7/16 – 20 UNF |
PSW18HD | 150 | – 2320 (10 – 160) | 260 (18) |
| 435 (30) | 7/16 – 20 UNF | |
|
|
|
|
|
|
|
|
Numbers in parentheses indicate measurement in bar.
*Note: Hysteresis is not adjustable. Maximum values are shown.
