United Electric J21K-16020 Pressure Switch
The United Electric J21K-16020 is a heavy-duty differential pressure switch designed for critical monitoring in industrial HVACR systems, chillers, and compressor circuits. Featuring an adjustable setpoint range of 1 to 15 PSID, this unit utilizes an opposing sealed metal bellows design to detect precise pressure deviations between two points. This mechanical accuracy is essential for filter status monitoring and verifying proof of flow in hydronic or air-handling applications. The rugged epoxy-coated diecast aluminum enclosure is NEMA 4X rated, ensuring high level protection against corrosion and moisture in demanding mechanical rooms.
For contractors, the J21K-16020 offers a reliable SPDT switch output rated at 15A, providing the flexibility to wire for normally open or normally closed logic. With a repeatability of ±1% and a narrow deadband of 0.1 to 0.6 PSI, it delivers consistent performance without constant recalibration. The 1/4 inch NPT pressure connection and 7/8 inch conduit hole allow for straightforward integration into existing piping and electrical layouts. This switch is a field-proven solution for preventing equipment downtime by sensing clogged filters or excessive flow deviations before they lead to system failure.
Key Benefits:- Precision Control: Features an adjustable 1-15 PSID range with an internal hex screw for secure setpoint calibration.
- Rugged Construction: Equipped with brass bellows and an epoxy-coated enclosure to withstand harsh environments.
- High Load Capacity: Durable 15A SPDT snap-action switch handles high electrical loads for direct control applications.
- Environmental Protection: NEMA 4X and UL/cUL certified for reliable operation in moisture-prone or industrial areas.
- Application Versatility: Ideal for chiller bypass, pump differential pressure, and HVAC filter monitoring.
- Can this switch be used for both liquid and gas? Yes, the United Electric J21K-16020 is compatible with water, glycol, inert dry air, and non-corrosive gases.
- How do I adjust the differential setpoint? Adjustments are made internally using a 5/16 hex nut to prevent unauthorized tampering in the field.
- What is the maximum working pressure? This model supports a maximum working pressure of 125 PSI and a proof pressure of 125 PSID.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $699.53
-65%$699.53
$244.84United Electric J21K-16020 Pressure Switch
The United Electric J21K-16020 is a heavy-duty differential pressure switch designed for critical monitoring in industrial HVACR systems, chillers, and compressor circuits. Featuring an adjustable setpoint range of 1 to 15 PSID, this unit utilizes an opposing sealed metal bellows design to detect precise pressure deviations between two points. This mechanical accuracy is essential for filter status monitoring and verifying proof of flow in hydronic or air-handling applications. The rugged epoxy-coated diecast aluminum enclosure is NEMA 4X rated, ensuring high level protection against corrosion and moisture in demanding mechanical rooms.
For contractors, the J21K-16020 offers a reliable SPDT switch output rated at 15A, providing the flexibility to wire for normally open or normally closed logic. With a repeatability of ±1% and a narrow deadband of 0.1 to 0.6 PSI, it delivers consistent performance without constant recalibration. The 1/4 inch NPT pressure connection and 7/8 inch conduit hole allow for straightforward integration into existing piping and electrical layouts. This switch is a field-proven solution for preventing equipment downtime by sensing clogged filters or excessive flow deviations before they lead to system failure.
Key Benefits:- Precision Control: Features an adjustable 1-15 PSID range with an internal hex screw for secure setpoint calibration.
- Rugged Construction: Equipped with brass bellows and an epoxy-coated enclosure to withstand harsh environments.
- High Load Capacity: Durable 15A SPDT snap-action switch handles high electrical loads for direct control applications.
- Environmental Protection: NEMA 4X and UL/cUL certified for reliable operation in moisture-prone or industrial areas.
- Application Versatility: Ideal for chiller bypass, pump differential pressure, and HVAC filter monitoring.
- Can this switch be used for both liquid and gas? Yes, the United Electric J21K-16020 is compatible with water, glycol, inert dry air, and non-corrosive gases.
- How do I adjust the differential setpoint? Adjustments are made internally using a 5/16 hex nut to prevent unauthorized tampering in the field.
- What is the maximum working pressure? This model supports a maximum working pressure of 125 PSI and a proof pressure of 125 PSID.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The United Electric J21K-16020 is a heavy-duty differential pressure switch designed for critical monitoring in industrial HVACR systems, chillers, and compressor circuits. Featuring an adjustable setpoint range of 1 to 15 PSID, this unit utilizes an opposing sealed metal bellows design to detect precise pressure deviations between two points. This mechanical accuracy is essential for filter status monitoring and verifying proof of flow in hydronic or air-handling applications. The rugged epoxy-coated diecast aluminum enclosure is NEMA 4X rated, ensuring high level protection against corrosion and moisture in demanding mechanical rooms.
For contractors, the J21K-16020 offers a reliable SPDT switch output rated at 15A, providing the flexibility to wire for normally open or normally closed logic. With a repeatability of ±1% and a narrow deadband of 0.1 to 0.6 PSI, it delivers consistent performance without constant recalibration. The 1/4 inch NPT pressure connection and 7/8 inch conduit hole allow for straightforward integration into existing piping and electrical layouts. This switch is a field-proven solution for preventing equipment downtime by sensing clogged filters or excessive flow deviations before they lead to system failure.
Key Benefits:- Precision Control: Features an adjustable 1-15 PSID range with an internal hex screw for secure setpoint calibration.
- Rugged Construction: Equipped with brass bellows and an epoxy-coated enclosure to withstand harsh environments.
- High Load Capacity: Durable 15A SPDT snap-action switch handles high electrical loads for direct control applications.
- Environmental Protection: NEMA 4X and UL/cUL certified for reliable operation in moisture-prone or industrial areas.
- Application Versatility: Ideal for chiller bypass, pump differential pressure, and HVAC filter monitoring.
- Can this switch be used for both liquid and gas? Yes, the United Electric J21K-16020 is compatible with water, glycol, inert dry air, and non-corrosive gases.
- How do I adjust the differential setpoint? Adjustments are made internally using a 5/16 hex nut to prevent unauthorized tampering in the field.
- What is the maximum working pressure? This model supports a maximum working pressure of 125 PSI and a proof pressure of 125 PSID.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
