United Electric J21K-357 Pressure Switch
The United Electric J21K-357 is a dual-bellows differential pressure switch engineered for precision monitoring in demanding HVAC and industrial environments. This model features an adjustable set point range of 0 to 70 PSID, providing reliable filter status monitoring and flow verification for chillers, compressors, and pump systems. The J21K-357 is housed in a rugged, epoxy-coated aluminum NEMA 4 enclosure, ensuring protection against water and dust in both indoor and outdoor installations. Its SPDT switch configuration, rated at 15A, allows for versatile electrical integration across normally open or normally closed circuits. Built with 316L stainless steel bellows and a 1/4" NPT connection, this industrial pressure switch delivers high repeatability and resistance to corrosive media, maintaining system safety and efficiency without the need for constant recalibration in the field.
Key Benefits:- Precise Differential Control: Adjustable 0-70 PSI range allows for fine-tuned set points to match specific system requirements.
- Durable Construction: 316L stainless steel wetted parts and an epoxy-coated enclosure withstand harsh conditions.
- Application Versatility: Ideal for chiller oil pressure monitoring and sensing pressure drops across filters.
- Weatherproof Protection: NEMA 4 rating ensures moisture and dust-tight integrity when used with watertight conduit fittings.
- What is the maximum proof pressure for the J21K-357? The unit is rated for a proof pressure of 70 PSID, but always verify system surges do not exceed nameplate limits.
- Can this be used for liquid and gas media? Yes, the 316L bellows are compatible with various media including water, glycol, and inert gases.
- How do you adjust the set point? Adjustments are made internally via a 5/16" hex nut to ensure the set point remains secure from tampering during operation.
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: $660.67
-65%$660.67
$231.23United Electric J21K-357 Pressure Switch
The United Electric J21K-357 is a dual-bellows differential pressure switch engineered for precision monitoring in demanding HVAC and industrial environments. This model features an adjustable set point range of 0 to 70 PSID, providing reliable filter status monitoring and flow verification for chillers, compressors, and pump systems. The J21K-357 is housed in a rugged, epoxy-coated aluminum NEMA 4 enclosure, ensuring protection against water and dust in both indoor and outdoor installations. Its SPDT switch configuration, rated at 15A, allows for versatile electrical integration across normally open or normally closed circuits. Built with 316L stainless steel bellows and a 1/4" NPT connection, this industrial pressure switch delivers high repeatability and resistance to corrosive media, maintaining system safety and efficiency without the need for constant recalibration in the field.
Key Benefits:- Precise Differential Control: Adjustable 0-70 PSI range allows for fine-tuned set points to match specific system requirements.
- Durable Construction: 316L stainless steel wetted parts and an epoxy-coated enclosure withstand harsh conditions.
- Application Versatility: Ideal for chiller oil pressure monitoring and sensing pressure drops across filters.
- Weatherproof Protection: NEMA 4 rating ensures moisture and dust-tight integrity when used with watertight conduit fittings.
- What is the maximum proof pressure for the J21K-357? The unit is rated for a proof pressure of 70 PSID, but always verify system surges do not exceed nameplate limits.
- Can this be used for liquid and gas media? Yes, the 316L bellows are compatible with various media including water, glycol, and inert gases.
- How do you adjust the set point? Adjustments are made internally via a 5/16" hex nut to ensure the set point remains secure from tampering during operation.
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.
Product Information
Product Information
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Shipping & Returns
Description
The United Electric J21K-357 is a dual-bellows differential pressure switch engineered for precision monitoring in demanding HVAC and industrial environments. This model features an adjustable set point range of 0 to 70 PSID, providing reliable filter status monitoring and flow verification for chillers, compressors, and pump systems. The J21K-357 is housed in a rugged, epoxy-coated aluminum NEMA 4 enclosure, ensuring protection against water and dust in both indoor and outdoor installations. Its SPDT switch configuration, rated at 15A, allows for versatile electrical integration across normally open or normally closed circuits. Built with 316L stainless steel bellows and a 1/4" NPT connection, this industrial pressure switch delivers high repeatability and resistance to corrosive media, maintaining system safety and efficiency without the need for constant recalibration in the field.
Key Benefits:- Precise Differential Control: Adjustable 0-70 PSI range allows for fine-tuned set points to match specific system requirements.
- Durable Construction: 316L stainless steel wetted parts and an epoxy-coated enclosure withstand harsh conditions.
- Application Versatility: Ideal for chiller oil pressure monitoring and sensing pressure drops across filters.
- Weatherproof Protection: NEMA 4 rating ensures moisture and dust-tight integrity when used with watertight conduit fittings.
- What is the maximum proof pressure for the J21K-357? The unit is rated for a proof pressure of 70 PSID, but always verify system surges do not exceed nameplate limits.
- Can this be used for liquid and gas media? Yes, the 316L bellows are compatible with various media including water, glycol, and inert gases.
- How do you adjust the set point? Adjustments are made internally via a 5/16" hex nut to ensure the set point remains secure from tampering during operation.
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.
