Series 542

Temperature relief valve, with fail-safe action.

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Product Description

Temperature relief valve, with fail-safe action.
Manual reset for burner switch off or alarm activation.
Discharge rating 1 1/2" x 1 1/4" - 136kW; 1 1/2" x 1 1/2" - 419 kW.
Certified and calibrated to INAIL (formerly ISPESL) standards.

Technical data

Medium temperature range: 5–100 °C
Minimum working pressure: 0,3 bar
Maximum working pressure: 10 bar

Certifications

CE2797
INAIL

Drawings and specifications

Part number Connection Drain connection Maximum discharge rating
Temperature setting
98 °C
2D drawings
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3D models
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Tender text
CALEFFI, 542870. Temperature relief valve, with fail-safe action. Manual reset for burner switch off or alarm activation. Discharge rating 1 1/2" x 1 1/4" - 136kW; 1 1/2" x 1 1/2" - 419 kW. Certified and calibrated to INAIL (formerly ISPESL) standards. Connection: G 1 1/2" A (ISO 228-1) M. Drain connection: G 1 1/4" (ISO 228-1) F. Maximum working pressure: 10 bar. Minimum working pressure: 0,3 bar. Medium temperature range: 5–100 °C. Temperature setting: 98 °C. Maximum discharge rating: 136 kW.
SCIP code
179cb9bd-382d-4bc4-94d5-dfa3e48bbd4f
Temperature setting
99 °C
2D drawings
Download
Download
3D models
Download
Download
Tender text
CALEFFI, 542880. Temperature relief valve, with fail-safe action. Manual reset for burner switch off or alarm activation. Discharge rating 1 1/2" x 1 1/4" - 136kW; 1 1/2" x 1 1/2" - 419 kW. Certified and calibrated to INAIL (formerly ISPESL) standards. Connection: G 1 1/2" A (ISO 228-1) M. Drain connection: G 1 1/2" (ISO 228-1) F. Maximum working pressure: 10 bar. Minimum working pressure: 0,3 bar. Medium temperature range: 5–100 °C. Temperature setting: 99 °C. Maximum discharge rating: 419 kW.
SCIP code
05596b4a-eaba-4c39-bf96-c540e852214d

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