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liquid pressure switch / differential / for the petrochemical industry / adjustable
liquid pressure switch
GD series

Pressure range: 2 psi - 3,000 psi

... Ashcroft® GD differential pressure switch is designed for use on tough applications requiring a 316L SS enclosure. The straight forward design allows for easy field installation, while proven technology ...

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ASHCROFT
liquid pressure switch / differential / for the chemical industry / for the petrochemical industry
liquid pressure switch
LD series

Pressure range: 2 psi - 3,000 psi

... Ashcroft® LD differential pressure switch is designed for applications requiring high reliability, safety and accuracy. It's straight forward design facilitates easy field installation and calibration, ...

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ASHCROFT
water pressure switch / differential / for the chemical industry / for the petrochemical industry
water pressure switch
PD series

Pressure range: 2 psi - 3,000 psi

... Ashcroft® PD differential pressure switch was designed for use with harsh applications where uncompromising protection is required. It combines field-proven technology, stability and long cycling, making ...

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ASHCROFT
water pressure switch / mechanical / compact / stainless steel
water pressure switch
186

Process temperature: -30 °C - 120 °C
Pressure range: 0 bar - 10 bar

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Suco VSE France
diaphragm pressure switch / piston / compact / rugged
diaphragm pressure switch
0184, 0185 series

Process temperature: -40 °C - 100 °C
Pressure range: 0 bar - 100 bar

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Suco VSE France
diaphragm pressure switch / adjustable / IP65
diaphragm pressure switch
0163 series

Process temperature: -40 °C - 120 °C
Pressure range: 0.1 bar - 600 bar

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Suco VSE France
air pressure switch / for oil / for water / differential
air pressure switch
PSM-520

Process temperature: -25 °C - 80 °C
Pressure range: -0.4 bar - 30 bar

... site Protection cap for switch point adjustment Description The PSM-520 is used in industrial control, monitoring and alarm applications. The switch point can be specified by the ...

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WIKA Alexander Wiegand SE & Co. KG
liquid pressure switch / flush diaphragm / electronic / for hydraulic applications
liquid pressure switch
PSD-30, PSD-31

Process temperature: -20 °C - 85 °C
Pressure range: 0 bar - 600 bar

This electronic pressure switch is perfectly suited for a wide range of applications to include pneumatics, hydraulics, machine tools, compressors, pumps and machine building. It comes with an extensive ...

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WIKA Alexander Wiegand SE & Co. KG
gas pressure switch / piston / for hydraulic applications / OEM
gas pressure switch
PSM02

Process temperature: -20 °C - 80 °C
Pressure range: 0.2 bar - 400 bar

Presenting the latest Model PSM02 OEM compact pressure switch. Designed with two adjustment screws that enable easy and convenient on-site setting of the required switch point. Guarantees ...

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WIKA Alexander Wiegand SE & Co. KG
solid-state pressure switch / industrial
solid-state pressure switch
3600

... Ideal for Off-Highway, Mobile, Medical Gas Demanding Industrial Applications Fully Hermetically Sealed Built using our proven thin film sensing technology, 3600 Series solid-state pressure ...

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GEMS SENSORS & CONTROLS
air pressure switch / mechanical / OEM / low-pressure
air pressure switch
PS11 series

Process temperature: -40 °C - 121 °C
Pressure range: 0 bar - 1 bar

For low pressure applications, the longevity of our PS11 series pressure switch is hard to beat. A life expectancy of 1 million cycles means long-term reliability. Their snap-action microswitch ...

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GEMS SENSORS & CONTROLS
air pressure switch / diaphragm / OEM / compact
air pressure switch
PS31/PS51, PS32/PS52 series

Process temperature: -40 °C - 110 °C
Pressure range: 0 bar - 20 bar

The PS31 Pressure Switch, formerly the PMLA Model, is recommended for low temperature Pneumatic Applications. It comes with a factory setting but can be adjusted. It is made with metal blade contacts ...

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GEMS SENSORS & CONTROLS
gas pressure switch / electronic / with digital display / IP65
gas pressure switch
PST

Process temperature: 0 °C - 50 °C
Pressure range: -2,000 mbar - 2,000 mbar

... sensors have ABS housing (IP 65 protection), a 10-digit LCD display and red LED in front. Configuration is by software or DIP switch. This sensor is easily and quickly mounted using the 1/4 turn system and wall mount ...

air pressure switch / mechanical / modular / miniature
air pressure switch
SY series

Process temperature: -10 °C - 50 °C
Pressure range: 13, 15 bar

Syntesia pressure switches feature a high degree of miniaturisation and a modem attractive design. As they are extremely modular, the Syntesi« series can be installed facing up or down. They come reody assembled with ...

air pressure switch / mechanical / miniature / modular
air pressure switch
PS x00 series

Process temperature: -10 °C - 50 °C
Pressure range: 13, 15 bar

Skillair® pressure switches feature a high degree of miniaturisation and a modern attractive design. As they are extremely modular, the Skillair® series can be installed facing up or down. They come ready assembled with ...

diaphragm pressure switch / adjustable / IP65 / IP54
diaphragm pressure switch
PM series

Process temperature: -5 °C - 60 °C
Pressure range: 1 bar - 10 bar

... R1/8, G1/4, M5 and tube 4/2, depending on the chosen product series, while the operating pressure has a value of -5 to 60 degrees Celsius. The operating pressure is between 1 and 10 bar, while the ...

mechanical pressure switch / increased safety
mechanical pressure switch
PS 113 A/PS 115

Process temperature: 0 °C - 90 °C
Pressure range: 50 Pa - 200,000 Pa

For accurate gas-type independent pressure measurement of venting procedures Easy to integrate Including connection cable Flange size: DN 16 ISO-KF Rugged construction Dependable long-term ...

mechanical pressure switch / adjustable
mechanical pressure switch
PS 115

Process temperature: 5 °C - 90 °C
Pressure range: 50 Pa - 200,000 Pa

Adjustment range 0.5-2000 mbar For use with SV 110 Can also be used with differential pressure Flange size: DN 16 ISO-KF Rugged construction Dependable long-term operation

differential pressure switch / with digital display / relative / adjustable
differential pressure switch
PNI02x series

Process temperature: -25 °C - 80 °C
Pressure range: 0 bar - 250 bar

... comparison of set/actual values directly in the sensor Automatic adjustment of the switch point Clearly visible LED display Efficient differential pressure monitoring

air pressure switch / diaphragm / industrial
air pressure switch
DL...K series

Pressure range: 0.2 mbar - 150 mbar

The Diaphragm pressure switch comes with micro switch intended for regulating and monitoring air pressures on industrial/commercial fittings. The micro switch ...

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Honeywell Thermal Solutions
air pressure switch / diaphragm / industrial
air pressure switch
DL...E series

Pressure range: 0.2 mbar - 50 mbar

Diaphragm pressure switches with micro switch (silicone-free versions available) for monitoring air pressures on industrial and commercial installations, for positive ...

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Honeywell Thermal Solutions
air pressure switch / diaphragm / industrial
air pressure switch
DL..A series

Pressure range: 0.2 mbar - 150 mbar

... Pressure switch with gold-plated contacts for voltages of < 24 V, Pressure switch with pilot lamp, Pressure switch ...

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Honeywell Thermal Solutions
liquid pressure switch / diaphragm / industrial / compact
liquid pressure switch
0110

Pressure range: 0.1 bar - 50 bar

... quick attachment and reliable connection High protection class (to IP67 or IP6K9K) Compact and rugged design in industrial environments like construction and agricultural machinery or commercial vehicles ...

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SUCO
liquid pressure switch / piston / industrial / adjustable
liquid pressure switch
0111

Pressure range: 50 bar - 150 bar

... , available as normally open or normally closed Piston pressure switch 0111 - Deutsch DT04 - 2P (50 - 150 bar) Pressure range: 50 to 150 bar (+/- 5) 600 bar Overpressure safety: Pressure ...

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SUCO
diaphragm pressure switch / industrial / adjustable / compact
diaphragm pressure switch
0112

Pressure range: 0.1 bar - 50 bar

... High overpressure resistance, compact, small switches, available as normally open or normally closed Diaphragm pressure switch 0112 - AMP Superseal 1.5 (0,1 - 50 bar)

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SUCO
oil pressure switch / mechanical / for central lubrication units
oil pressure switch
DSB series

Process temperature: -25 °C - 80 °C
Pressure range: 300 bar

... astonishing pressure switch is directly incorporated to the lubricant line. the cul-de-sac may become a blockage, or harden after some time leaving the pressure switch ...

oil pressure switch / piezoresistive / for central lubrication units
oil pressure switch
DSA series

Process temperature: 10 °C - 60 °C
Pressure range: 1 bar - 30 bar

Typically, pressure switches can be used for oil, lubricants and fluid grease. However, when grease is used, a specific model of pressure switch is required to prevent hardening near ...

piezoresistive pressure switch / for central lubrication units / with digital display
piezoresistive pressure switch
DSC series

Process temperature: -10 °C - 80 °C
Pressure range: 100 bar

The analogue pressure gauge visually checks the pressure changes in centralized lubrication systems. In centralized lubrication system with piston distributors pressure build-up, pressure ...

electromechanical pressure switch
electromechanical pressure switch
MH Series

Honeywell's MH Series pressure switches are easily customizable, durable, reliable electromechanical pressure on/off switches. They boast the following specifications: Pressure switching ...

electromechanical pressure switch / rugged
electromechanical pressure switch
HP / HE / ME / LP / LE

... environmental sealing and high proof pressure and burst pressure ratings for use in many rugged applications requiring making or breaking of an electrical connection in response to a pressure ...

electronic pressure switch / OEM
electronic pressure switch
MEP 2250 series

Pressure range: 0 bar - 400 bar

MEP 2250, Electronic pressure switch, dual outputMEP 2250 is designed for use in severe OEM applications and has excellent long term stability with zero drift. MEP 2250 has a dual output with switch ...

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Danfoss Industrial Automation
electronic pressure switch / OEM
electronic pressure switch
MEP 2650 series

Pressure range: 0 bar - 250 bar

MEP 2650, Electronic pressure switch, single outputMEP 2650 is designed for use in severe OEM applications and has excellent long term stability with zero drift. MEP 2650 has a single output: switch ...

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Danfoss Industrial Automation
steam pressure switch / bellows / increased safety / IP65
steam pressure switch
BCP

Process temperature: -20 °C - 70 °C
Pressure range: 0 bar - 63 bar

... installations with critical safety reasons. The controllers come as high and low pressure limiters as well as pressure controllers from low pressure BCP1 with narrow differential ...

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Danfoss Industrial Automation
liquid pressure switch / differential / with digital display / ATEX
liquid pressure switch
Digihelic® AT2DH3 series

Process temperature: -60 °C - 60 °C
Pressure range: 5 psi - 25 psi

... differential pressure controller approved by ATEX. At the same time, it is also a three-in-one instrument processing device. Users can use it as a digital display gauge, but also as a transmitter with current output, ...

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DWYER
gas pressure switch / differential / explosion-proof
gas pressure switch
AT11910

Process temperature: -60 °C - 60 °C
Pressure range: 11,200 Pa

The Series AT11910 is created as ATEX Approved 1910 Differential Pressure Switch, designed and developed by DWYER. It is made more durable and highly efficient in dealing with non-combustible compatible ...

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DWYER
air pressure switch / differential / adjustable / explosion-proof
air pressure switch
AT1ADPS

Process temperature: -60 °C - 85 °C
Pressure range: 10,000 Pa

... differential pressure switch is ideal for pressure, vacuum, and differential pressure systems in hazardous zones. Settings ranging from 0.08 in w.c. (20 Pa) up to 16 ...

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DWYER
Bourdon tube pressure switch / industrial
Bourdon tube pressure switch
BR4200 series

... applications. Bourdon tube pressure gauge for diaphragm seal and switch function Nominal range -1…3 bar to -1…15 bar, 0…4 bar to 0…400 bar High quality case with bajonet ring NS 100 Case, measuring ...

steam pressure switch / for water / diaphragm / sanitary wares
steam pressure switch
PHP

Process temperature: -5 °C - 200 °C
Pressure range: 0 bar - 12 bar

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ELETTROTEC s.r.l.
diaphragm pressure switch / piston / adjustable / ATEX
diaphragm pressure switch
PML / PPL

Process temperature: -5 °C - 60 °C
Pressure range: 0.5 bar - 600 bar

Switch rating 3(2)A / 250Vac Electrical connection DIN 43650 PG09 Adjusting range 0.5..10 bar, 10...100 bar; 30...150 bar; 150...350 bar Max static pressure 300 bar or 600 bar (according to the ...

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ELETTROTEC s.r.l.
diaphragm pressure switch / piston / adjustable / stainless steel
diaphragm pressure switch
PMN series

Process temperature: -40 °C - 140 °C
Pressure range: 0.1 bar - 600 bar

... Piston Adjustable Pressure Switch provides a good quality performance and functionality to be able to meet the standards and needs of the users and operators. The vacuum switch is integrated ...

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ELETTROTEC s.r.l.
electromechanical pressure switch / for pumps / for compressors / HVAC
electromechanical pressure switch
PS80 Series

Process temperature: -65 °F - 275 °F
Pressure range: 0 psi - 750 psi

Safe and reliable automatic reset pressure switch designed to fit to meet a broad spectrum of applications including HVAC & R, pumps and compressors by offering a wide range of pressure ...

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Sensata Technologies
electromechanical pressure switch / custom
electromechanical pressure switch
25PS

Process temperature: -40 °F - 275 °F
Pressure range: 500 psi

Sensata’s 25PS pressure switch family of products has been designed for direct control of electric motors and other demanding load applications requiring precise pressure settings. Sensata’s ...

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Sensata Technologies
industrial pressure switch / HVAC / for harsh environments
industrial pressure switch
20PS

The 20PS Family of Switch products (20PS, 39PS, 40PS and 41PS) was developed to meet the demanding needs of HVAC & industrial applications and has since become a staple in the heavy vehicle and off road ...

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Sensata Technologies
air pressure switch / solid-state / with digital display
air pressure switch
dV-2 PS

Pressure range: -1 bar - 700 bar

The dV-2 PS is a sophisticated digital pressure gauge with two independent pressure switch outputs. The gauge employs KELLER's proven microprocessor technology which produces highly accurate ...

liquid pressure switch / solid-state / compact
liquid pressure switch
PA-22 PS

Process temperature: -40 °C - 125 °C
Pressure range: 4 bar - 400 bar

... PS is a compact programmable pressure switch and pressure transmitter. It offers continuous analog 0,5…4,5 V signal for process monitoring and switch functions to activate ...

oil pressure switch / mechanical / piston / diaphragm
oil pressure switch
PM1

Process temperature: -20 °C - 80 °C
Pressure range: -0.85 bar - 320 bar

Adjustable switch point ●Change over contact ●Flat plug 6.3×0.8 with rubber protection cap or ●Circular plug M12×1 Characteristics Mechanical pressure controller in which a membrane or piston is pre-tensioned ...

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GHM Messtechnik GmbH
electronic pressure switch / stainless steel / IP67
electronic pressure switch
PSD30

Process temperature: -20 °C - 85 °C
Pressure range: 1 bar - 600 bar

... .600 bar ●Display for pressure, Min/Max-peak values ●Manipulation protected via Password ●Different switching functions programmable Characteristics The pressure switch PSD30 conduces ...

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GHM Messtechnik GmbH
mechanical pressure switch / piston / diaphragm / stainless steel
mechanical pressure switch
PH1

Process temperature: -20 °C - 80 °C
Pressure range: 0.2 bar - 320 bar

Adjustable switch point ●Adjustable hysteresis ●Change over contact ●Plug DIN 43650-A ●Lateral cable exit Characteristics Mechanical pressure controller in which a membrane or piston is pre tensioned ...

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GHM Messtechnik GmbH
oil pressure switch / electronic / with IO-Link interface / stainless steel
oil pressure switch
DS 300

Process temperature: -20 °C - 85 °C
Pressure range: 0 bar - 600 bar

DS 300 is an electronic pressure switch helps in exchange process data, diagnostic reports and status messages with a super ordinate control level. IO-Link interface equipped parameters can be set by ...

gas pressure switch / electronic / with digital display / stainless steel
gas pressure switch
PSC series

Process temperature: 0 °C - 80 °C
Pressure range: -1 Pa - 700 Pa

The PSC model is an electronic pressure switch with integrated display. This device is mainly used to continuously monitor pressure and allow simple switch point configuration ...

liquid pressure switch / bellows / differential / stainless steel
liquid pressure switch
SCH series

Process temperature: 70 °C
Pressure range: -1 bar - 0.1 bar

Most of the above pressure sensors of the mechanical pressure switches are equipped with the measuring bellows which are subjected to lower loads and show very slight movement in comparison with the permissible ...

liquid pressure switch / diaphragm
liquid pressure switch
BM45 series

Process temperature: -40 °C - 149 °C

... coarse or pelleted components. The BM45 functions by sensing components pressing against grid switch. On pressing the switch, it initiates a reactive micro-switch which can be wired ...

diaphragm pressure switch / explosion-proof
diaphragm pressure switch
BM65 series

Process temperature: -40 °C - 149 °C

The BM65 series is manufactured by Binmaster, and is a diaphragm switch that is ideal for use in hazardous locations and environments where there is a risk of combustible dust. The unit offers a mechanized point level ...

mechanical pressure switch / stainless steel / adjustable / explosion-proof
mechanical pressure switch
ATM/GR

Process temperature: -40 °C - 150 °C
Pressure range: 100 mbar - 1,000,000 mbar

... Customer benefits 2 limit switches adjustable over 0 - 100% of the pressure range Reverse polarity and short circuit protected Fast customization thanks to modular product design Pressure swtich and analog ...

diaphragm pressure switch / adjustable / stainless steel
diaphragm pressure switch
D1S, D2S series

Process temperature: -40 °C - 75 °C
Pressure range: -6 mbar - 10,300 mbar

The D1S and D2S series are diaphragm pressure switches, manufactured by Barksdale. These products are used for pressure control purposes, having stainless steel diaphragms. They also have welded wetted ...

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Barksdale
diaphragm pressure switch / adjustable / stainless steel
diaphragm pressure switch
D1T, D2T

Process temperature: -40 °C - 75 °C
Pressure range: -6 mbar - 10,300 mbar

... D1T/D2T is an adjustable diaphragm pressure switch that is capable of generating a pressure range of -0.006 to -1 bar and 0.005 to 10.3 bar. Enclosed in a metal housing and integrated ...

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Barksdale
water pressure switch / diaphragm / explosion-proof / stainless steel
water pressure switch
D1X, D2X serie

Process temperature: -40 °C - 75 °C
Pressure range: -6 mbar - 10,300 mbar

The D1X and D2X are metal diaphragm vacuum and pressure switches for controlling pressure in high-risk setting with stainless steel diaphragm. Their construction includes all wetted parts being welded. ...

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Barksdale

How to choose this product

pressure-switch

A pressure switch controls and adjusts a hydraulic or pneumatic system. It reacts to a pressure threshold or setpoint. Activating an on-off output, such as a dry contact, directly governs a mechanism which reestablishes the desired pressure.

Applications

These devices are found in process control, for compressor or pump operation, in chemistry, automobiles, agribusiness, the energy industry, hydraulics, construction, refrigeration units and in oil and natural gas installations.

Technologies

Relative or absolute pressure gas, vapor or liquid switches have a single input. Differential models have two inputs. Such switches can be mechanical or electronic.

Mechanical switches use a diaphragm, a piston or a Bourdon tube. The output contact may be normally open (NO) or normally closed (NC). A calibration screw is used to adjust the setpoint. Hysteresis parameters are set by the manufacturer or are adjustable.

Electronic switches also act as pressure transmitters. They use strain gauge, capacitive, inductive or piezoelectric measurement methods. Setpoints are programmable; readings are transmitted by two-wire, four-20 mA current loop or a three-wire 0-10 V arrangement. They are temperature-compensated and more precise.

How to choose

Choice will depend on the switch's working pressure and adjustment ranges, hysteresis, ability to withstand excess pressure and degree of protection.