ART. 478 DIAPHRAGM SAFETY VALVE FEMALE THREAD / FEMALE THREAD FOR SOLAR SYSTEMS

Able to protect plumbing tanks and boilers from excessive pressures.
With hand wheel for manual opening.
This handwheel should be operated at least once a year to check the cleanliness of the drain opening.
Nickel-plated brass body.
Nominal pressure: 10 bar.
Available calibration: 6 bar.
Minimum and maximum operating temperature: -20 ° C, 160 ° C.
Opening overpressure: 20%.
Closure completion error: 20%.
Thread connection ISO228 (corresponds to DIN EN ISO 228 and BS EN ISO 228).