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Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches
CD1H, CD2H Series
Description
Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches provide an ideal solution for pressure control applications requiring tamper proof external adjustment and environments which require water-tight NEMA 4 housings. These pressure switches are available in single or dual control settings for both positive pressure and vacuum models, to 150 psi. These snap-action switches may be wired normally open or normally closed through a 3/4"-14 NPT conduit connector to free leads to 18". All models feature self-locking set screw adjustment and dials which are calibrated for increasing setting. For applications requiring a highly accurate switch in a durable package, Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches are the ideal choice. Stripped models are also available.
Barksdale's CD1H and CD2H Housed Diaphragm Pressure Switches
Features
- High reliability
- Extremely versatile
- Calibrated dial for easy setpoint adjustment
- Ideal for pressure or vacuum
- Diaphragm Seal Option Available
Technical specifications
General Specifications*
| Accuracy: |
+/- 0.5% of the adjustable range |
Switch:
Type:
Rating: |
Single pole double throw (SPDT) single or dual circuit
10 amps @ 125/250 VAC, 3 amps @ 480 VAC (Class A or H limit switch); Consult sales drawing for ratings of optional limit switches. |
Wetted Parts:
Process Fitting:
Diaphragm:
Enclosure: |
304 stainless steel
17-7 PH stainless steel
Anodized aluminum |
| Electrical Connection: |
Free leads approximately 18" long, 16 AWG through 3/4" NPT conduit connector. |
| Enclosure Ratings: |
NEMA 4 |
| Pressure Connection: |
1/4" NPT female |
Approvals:
UL:
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All models are Underwriters' Laboratories
listed in the Electrical Construction Materials Directory under Industrial Control Equipment, float and pressure-operated; File E42816, and Canadian Standards Association listed under Guide 380-W-1.16, Class 3231, File 22355. |
Temperature Range:
Operating:
Storage: |
-40° to +165°F (-40° to +74°C)
-65° to +200°F (-54° to +93°C) |
Adjustment Instructions:
Pressure:
Vacuum: |
Turn self-locking adjustment screw counter
clockwise to increase pressure setting
Turn self-locking adjustment screw
clockwise to increase vacuum setting |
| Options: |
-Cleaned for Oxygen Service
-1/2" NPT Pressure Port
-NEMA 4X enclosure |
| Shipping Weight: |
Approximate 1.75 lbs. |
| * See product confi gurator for additional options. |
CD1H, CD2H Series House Diaphragm Switch
CD1H, CD2H Series
NEMA 4 Housing, Tamper-proof external adjustment dials, pressure up to 150 psi.
VCD1H, VCD2H Series
NEMA 4 housing, tamper-proof external adjustment dials, vacuum ranges from .06 - 30 inches Hg. Accuracy of +/-.5% of range. With tamper-proof external adjustment.
Applications
- Medical
- Water equipment
- Food & beverage
- Air proving in HVAC systems
- Engine monitoring
- Factory automation
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