Pressure Switches

Pressure Switches

Pressure Switches

Pressure Switch Manufacturer & Supplier

We are a pressure switch manufacturer producing a wide range of pressure, vacuum, and compound switches and sensors to meet the needs of any industrial application and operating environment. Each of our sensors is highly customizable with numerous pressure ranges, fittings, electrical connections, and wetted materials available for selection. The Whitman name was built on our pressure products over 45 years ago, and we pride ourselves on the quality and diversity of our offering. Contact our engineering team to discuss your custom project today and Whitman solutions we can design to meet your exact needs.

Pressure Switches

Whitman controls offers the most diverse selection of pressure switches in the industry. Our diverse line of switches are used across a wide range of applications including blowers, generator sets, off-road vehicles, compressors, wafer ovens, process equipment, flow control devices, pumps, wastewater, heating and cooling systems, and numerous other applications across industries. Our competitive advantage lies in our ability to custom engineer switch and sensor solutions that meet the exact needs of your application and media. Whitman has been working with large OEMs for over 40 years, and our longest running customers are those we have custom designed switch solutions for since our early years.

We offer low pressure units (up to 1,000 psig) and higher pressure units with proof pressures up to 6,000 psig and burst pressures up to 9,000 psig. These units come with a range of sensor elements, and are available with NEMA 4 and IP67 protection. Our adjustable pressure switches are field adjustable, allowing the end user the ability to adjust the set point of the switch in the field. Alternatively, our factory-set pressure switches are set by our professional staff at the factory to your exact pressure set point needs, and are not adjustable.

Compound Pressure Switches

Compound Pressure Vacuum switches allow the end user to control an applications where positive and negative pressures exist. Two of our most reliable pressure switches can also be custom designed as compound pressure switches including both the P88 and P100. These units afford the end user a wide range of pressure and vacuum set points, and can be used across numerous media and applications. Much like all our products, these compound switches are field adjustable or factory-set, and come with a vast array of pressure and electrical connections. 

Differential Pressure Switches

Differential Pressure switches measure the pressure differences between two points in an application and actuate when an end user pre-set actuation point is hit. Our snap action differential pressure switches are NEMA 4 rated and can withstand pressure spikes up to 9,000 psig. These devices have user set points from 0 to 250 PSI Differential and are capable of carrying light to moderate mechanical shock and vibratory loads.

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  1. P88 Economical Pressure Switch

    P88 Economical Pressure Switch

    $38.00

    Part # P88G

    The P88G Economical Pressure switches are typically used in applications where reliable switch control supersedes accuracy of set point. Controlling on and off functions for fans and pumps where one may need a wide differential to prevent over-cycling is an ideal application use for the P88G.

    • Set Point Range: 1.5 to 500 PSIG
    • Max System Pressure: 600 PSIG
    • Temperature range: -31°F to + 185°F (-35°C to +85°C)
  2. P117G - SS Body Pressure Switch

    P117G - SS Body Pressure Switch

    $80.75

    Part # P117G

    The P117G Stainless Steel Miniature Pressure switches are sharp, highly versatile devices that can be used in hundreds of OEM and routine mechanical applications. It is among our most popular switches given its durability and diverse set point options. There are numerous fitting and electrical connectors available featuring TB, TS, Military and DIN Connectors.

    • Set Point Range: 0.80 to 500 PSIG
    • Max System Pressure: 150% of Sensor Capacity
    • Temperature range: -65°F to +225°F (-54°C to +107°C)
  3. W117G - Ultra Pure Pressure Switch

    W117G - Ultra Pure Pressure Switch

    $97.50

    Part # W117G

    The W117G Ultra Pure Stainless Steel Pressure Switches have all welded stainless steel interiors which are Helium leak checked to pass 4 x 10-9 Std CC/Sec. These switches are used in silicon wafer ovens, numerous medical devices and other applications where even the slightest impurities are not tolerated. 

    • Set Point Range: 0.80 to 500 PSIG
    • Max System Pressure: 150% of Sensor Capacity
    • Temperature range: -65°F to +225°F (-54°C to +107°C)
  4. W117LG - Ultra Pure Long Body NEMA 4 Pressure Switch

    W117LG - Ultra Pure Long Body NEMA 4 Pressure Switch

    $124.00

    Part # W117LG

    The W117LG NEMA 4 Ultra Pure Stainless Steel Pressure Switches have all welded stainless steel interiors which are Helium leak checked to pass 4 x 10-9 Std cc/sec. These are the NEMA 4 rated weather-proof, liquid-resistant version of the W117G, suitable for out¬side applications or in areas of condensing humidity. 

    • Set Point Range: 0.80 to 500 PSIG
    • Max System Pressure: 150% of sensor capacity
    • Temperature range: -65°F to +225°F (-54°C to +107°C)
  5. J205G High Pressure/Low Set Point Pressure Switch

    J205G High Pressure/Low Set Point Pressure Switch

    $110.50

    Part # J205G

    The J205G High Pressure Low Set Point Pressure Switches are among our most versatile offering, affording the end user an extensive operating environment and a wide range of set point optionality.

    • Set Point Range: 0.80 to 800 PSIG
    • Max System Pressure: 5,000 PSIG
    • Temperature range: -65°F to +225°F (-54°C to +107°C)
  6. P605 High Pressure Fine Adjustment Model

    P605 High Pressure Fine Adjustment Model

    $131.25

    Part # P605

    The P605 Pressure Switches are a line of severe application controls that can withstand massive pressure spikes from hydraulic systems. These switches can see pressure spikes to 9,000 psig without comprising switch integrity or functionality. They also afford the end user higher set points to complement more severe environments and low set point repeatability. 

    • Set Point Range: 200 to 6,000 PSIG
    • Max System Pressure: 9,000 PSIG
    • Temperature range: -65°F to +225°F (-54°C to +107°C)
  7. J705 High Pressure/High Set Point Switch

    J705 High Pressure/High Set Point Switch

    $110.50

    Part # J705

    The J705 Pressure Switches are among our most durable products, affording the end user higher set points to complement more severe environments without sacrificing set point repeatability. These switches are designed for use with various oils, waters, and assorted gases, and are resilient against impeller spikes from pumps.

    • Set Point Range: 500 to 6,000 PSIG
    • Max System Pressure: 9,000 PSIG
    • Temperature range: -65°F to +225°F (-54°C to +107°C)
  8. P845 - Differential Pressure Switches

    P845 - Differential Pressure Switches

    $132.05

    Part # P845

    The Whitman Controls P845 Differential Pressure Switches are rugged and versatile, with excellent by-pass characteristics and the ability to handle a wide variety of media to 6,000 PSIG and set point ranges to 250 PSID. These switches are NEMA 4 rated and can tolerate submersion. They are commonly used across oil and water filter heads to detect when a filter element needs changing. It may be mounted in any orientation and is capable of carrying light to moderate mechanical shock and vibratory loads.
  9. P88C - Economical Compound Switch

    P88C - Economical Compound Switch

    $45.00

    Part # P88C

    The P88C Economical Compound switches are typically used in applications where reliable switch control supersedes accuracy of set point. These switches afford the end user the ability to operate in positive and negative pressure ranges. Controlling on and off functions for fans and pumps where one may need a wide differential to prevent over-cycling is an ideal application use for the P88.

    • Set Point Range: 1.5 to 500 PSIG Gauge and 6 to 28.0 InHg Vacuum
    • Max System Pressure: 600 PSIG
    • Temperature range: -31°F to + 185°F (-35°C to +85°C)

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