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UE Controls 400 Series Differential pressure switches (Type J400K, single switch output with internal hex screw adjustment, Models 127-157 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Type J400K, single switch output with internal hex screw adjustment

Brass bellows with nickel-plated brass 1/4” NPT (female) pressure connections
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UE Controls 400 Series Differential pressure switches (Type J402K, dual switch output with internal hex screw adjustment, Models 455-457 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Type J402K, dual switch output with internal hex screw adjustment

Buna-N diaphragm and O-Ring with aluminum 1/4” NPT (female) pressure connections
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UE Controls 400 Series Differential pressure switches (Type J400 K, single switch output with internal hex screw adjustment, Models 455-457 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Type J400 K, single switch output with internal hex screw adjustment

Buna-N diaphragm and O-Ring with aluminum 1/4” NPT (female) pressure connections
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UE Controls 400 Series Differential pressure switches (Type J402 K, dual switch output with internal hex screw adjustment, Models 440-448 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Type J402 K, dual switch output with internal hex screw adjustment

Buna-N diaphragms and o-ring with epoxy coated aluminum 1/8” NPT (female) pressure connections ; Option M449 recommended
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UE Controls 400 Series Differential pressure switches (Type J402 K, dual switch output with internal hex screw adjustment, Models 559 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Type J402 K, dual switch output with internal hex screw adjustment

559 -Set Point Range: 10 to 100 psid /Deadband: 0.2 to 1 psi / Working Pressure: 30 ”Hg Vac to 225 psi

Teflon and Buna-N diaphragms, Buna-N O-Ring with aluminum 1/4” NPT (female) pressure connections
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UE Controls 400 Series Differential pressure switches (Type J400 K, single switch output with internal hex screw adjustment, Models 559 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Type J400 K, single switch output with internal hex screw adjustment

559 -Set Point Range: 10 to 100 psid /Deadband: 0.2 to 1 psi / Working Pressure: 30 ”Hg Vac to 225 psi

Teflon and Buna-N diaphragms, Buna-N O-Ring with aluminum 1/4” NPT (female) pressure connections
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UE Controls 400 Series Differential pressure switches (Type H400K, single switch output with internal adjustment via reference dial, Models 455-457 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Type H400K, single switch output with internal adjustment via reference dial

Buna-N diaphragm and O-Ring with 1/4” NPT (female) aluminum pressure connections
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UE Controls 400 Series Differential pressure switches (Type H402K, dual switch output with internal adjustment via reference dial, Models 455-457 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Type H402K, dual switch output with internal adjustment via reference dial

Buna-N diaphragm and O-Ring with 1/4” NPT (female) aluminum pressure connections
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UE Controls 400 Series Differential pressure switches (Type H402K, dual switch output with internal adjustment via reference dial, Models 459 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Type H402K, dual switch output with internal adjustment via reference dial

459 -Set Point Range: 10 to 100 psi /Deadband: 0.2 to 1 psi / Working Pressure: 30 ”Hg Vac to 225 psi

Teflon and Buna-N diaphragms, Buna-N O-Ring with 1/4” NPT (female) aluminum pressure connections
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UE Controls 400 Series Differential pressure switches (Type H400K, single switch output with internal adjustment via reference dial, Models 559 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Teflon and Buna-N diaphragms, Buna-N O-Ring with 1/4” NPT (female) aluminum pressure connections

559 -Set Point Range: 10 to 100 psid /Deadband: 0.2 to 1 psi /Working Pressure: 30 “Hg Vac to 225 psi /Proof Pressure: 225 Psi
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UE Controls 400 Series Temperature switches (Type B400,Single switch output, immersion stem, internal adjustment via reference dial, Models 120-121 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.
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UE Controls 400 Series Temperature switches (Type B400, dual switch output, immersion stem, internal adjustment via reference dial, Models 120-121 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.


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UE Controls 400 Series Temperature switches (Type B403, triple switch output, immersion stem, internal adjustment via reference dial, Models 120-121 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.
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UE Controls 400 Series Temperature switches (Type C400, single switch output, immersion stem, internal hex screw adjustment, Models 120-121 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.


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UE Controls 400 Series Temperature switches (Type C402, dual switch output, immersion stem, internal hex screw adjustment, Models 120-121 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.


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UE Controls 400 Series Temperature switches (Type C403, triple switch output, immersion stem, internal hex screw adjustment, Models 120-121 )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.


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UE Controls 400 Series Temperature switches (Type E400, single switch output, bulb & capillary, Models 2BS-8BS, 2BSA, 2BSB )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Internal adjustment via reference dial,


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UE Controls 400 Series Temperature switches (Type E402, dual switch output, bulb & capillary, Models 2BS-8BS, 2BSA, 2BSB )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Internal adjustment via reference dial,


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UE Controls 400 Series Temperature switches (Type E403, triple switch output, bulb & capillary, Models 2BS-8BS, 2BSA, 2BSB )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Internal adjustment via reference dial,


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UE Controls 400 Series Temperature switches (Type F400, single switch output, bulb & capillary, Models 2BS-8BS )
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities.

Internal hex screw adjustment.