Caleffi thermal discharge safety valve 543 - 3/4" IG - 95°C - max. 10 bar
The Caleffi thermal discharge safety device 543 (manufacturer article no. 543503) offers maximum safety for wood or solid fuel boilers. It ensures that the water temperature remains reliably under control and protects the boiler from overheating if the limit temperature of 95°C is exceeded. An indispensable component for every heating system with solid fuel boilers.
Application:
This thermal discharge safety device has been specially developed for wood or solid fuel boilers with a built-in boiler or cooling coil. When the critical temperature of 95°C is reached, cold domestic water is passed through the heat exchanger to cool the boiler. As soon as the temperature drops, the valve closes automatically. The discharge safety device complies with the requirements of the DIN 3440 and DIN 4751 standards for solid fuel boilers with outputs up to 100 kW.
Product features:
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Effective overheating protection: Protects boilers by automatically opening at temperatures above 95°C.
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Reliable reset: Valve closes automatically when the temperature returns to the safe range.
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High-quality materials: housing and control spindle made of brass, seals made of robust EPDM, spring made of stainless steel.
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Easy installation: With 3/4" female thread connections and an immersion sleeve with 1/2" male thread for the temperature sensor.
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Compliant with standards: Complies with DIN 3440 and DIN 4751 as well as the ISPESL standard (Chapter R 3C. 1. G2).
Technical details:
| Characteristic |
Value |
| Housing |
brass EN 12165 CW617N |
| Max. operating pressure |
10 bar |
| setting temperature |
95°C |
| temperature range |
5-110°C |
| discharge capacity at 110°C with Qp = 1 bar |
3000 l/h |
| Max. sensor temperature |
130°C |
| connections |
3/4" IG |
| immersion sleeve for sensor |
1/2" AG |
| length of the capillary tube |
1300 mm |
| ambient temperature |
0-80°C |
The Caleffi thermal discharge safety device 543 is the optimal safety solution for wood and solid fuel boilers. Thanks to its reliability and high-quality workmanship, it is an indispensable accessory for the safe and efficient operation of your heating system.
Manufacturer information:
CALEFFI SPA
Strada Regionale 229 n. 25
28010 Fontaneto d`Agogna (NO)
Phone: +39 0322 8491
E-Mail: info@caleffi.com
Website: https://www.caleffi.com/de-de
