Diaphragm Switches
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D1T, D2T Series
Terminal Block Diaphragm Switch
NEMA 4 Housing with terminal strip, tamper-proof external adjustment, up to 150 psi.
Applications
- Machine tools
- Pneumatics
- Medical
- Marine & shipbuilding
- Pump & compressor monitoring
- Oil & gas
- Water equipment
- Mining
- Lubrication equipment

D1X, D2X Series
Explosion Proof Diaphragm Switch
Explosion-proof, tamper-proof external adjustment, up to 150 psi.
Applications
- Pump & compressor monitoring
- Hydraulic power units
- Oil & gas
- Food & beverage
- Utility & power generation
- Mining

CD1H, CD2H Series
Housed 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
Applications
- Medical
- Water equipment
- Food & beverage
- Air proving in HVAC systems
- Engine monitoring
- Factory automation
Diaphragm Seals
Threaded Off-Line Diaphragm Seals, Flush Face Diaphragm Seals, Sanitary Diaphragm Seals, Mini Diaphragm Seals, available with Barksdale's pressure switches, transducers/transmitters and solid state switches.
Types of Seals :
- Threaded Off-Line Diaphragm Seals
- Flush Face Diaphragm Seals
- Sanitary Diaphragm Seals
- Mini Diaphragm Seals

D1S, D2S, D1H, D2H Series
Stripped & Housed Diaphragm
D1S, D2S Series
Stripped, suitable for control box installations with adjustments up to 150 psi.
D1H, D2H, D3H Series
NEMA 4 Housing, tamper-proof external adjustment, up to 150 psi.
Applications
- Pump & compressor monitoring
- Engine monitoring
- Machine tools
- Hydraulic power units
- Medical equipment
- Waste management
- Food & beverage
- Factory automation
- Metal working