DIFFERENTIAL PRESSURE SWITCHES

Product catalog summary

Overview: The P845 Differential Pressure Switch by Whitman Controls is designed for rugged and versatile applications, capable of handling a wide variety of media up to 6,000 PSIG. It is NEMA 4 rated, allowing for submersion, and is commonly used in oil and water filter systems to indicate when a filter change is necessary. The switch can be mounted in any orientation and withstands light to moderate mechanical shock and vibration.

Key Features:

Handles a wide variety of media.
Resistant to mechanical shock and vibration.
Set point options are customer or factory set and field adjustable.
Operates over a wide temperature range.
Available with various electrical interfaces and SPDT or SPST configurations.

Specifications:

Set point range: 2 - 250 PSID.
Maximum Differential Pressure: 2,000 PSID.
Maximum System Pressure: 6,000 PSIG.
Proof Pressure: 9,000 PSIG.
Temperature Range: -65°F to +225°F (-54°C to +107°C).
Maximum Amperage: ¼ Amps.
Sensor Element: Piston.
Weight: Approximately 8.5 oz.
Maximum Cycling: 100 CPM.
Wetted Parts: Steel spring, anodized aluminum body and piston, Buna seal, Loctite $271 sealing compound, anodized aluminum fitting with ¼-18 NPT Female.

Caution: Ensure compatibility of customer media and environment with construction materials.

Sensor Code and Performance Characteristics:

Sensor Code	Maximum System Pressure (PSIG)	Set Point Repeatability (PSIG)	Set Point Range (Decreasing PSID)	Set Point Range (Increasing PSID)
1	6000	± 2.0	2.0 - 7.0	7.0 - 13.0
2	6000	± 4.0	5.0 - 16.0	13.0 - 25.0
3	6000	± 8.0	10.0 - 21.0	25.0 - 45.0
4	6000	± 16.0	20.0 - 80.0	35.0 - 160.0
5	6000	± 32.0	35.0 - 120.0	120.0 - 250.0

Catalog excerpts

DIFFERENTIAL PRESSURE SWITCHES Our P845 Differential Pressure Switch can operate across a wide variety of media while providing differential setpoints to 250 PSID and withstanding maximum differential pressure up to 2,000 PSID. P845

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Differential Pressure Switches P845Switch Differential Pressure KEY FEATURES 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. • Rugged and versatile...

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Whitman Controls 2018-2019 Full Product Catalog
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