3/8″ Boiler Safety Valve, 1.9 bar

Commercial espresso boilers carry a spring-loaded safety valve as protection against overpressure. If the pressurestat fails to switch the element off, this valve opens at 1.9 bar and vents steam safely.

Stamped Rating

The cap is marked Nostral, CE, CAT. 1, CW614N, EN ISO 4126-1, BAR 1.9 and DN 3/8, with a working range of -10 to 200 °C. Side vents direct the steam away from the body and a pin on top shows when it lifts.

Specifications

Nostral 3/8″ 1.9 bar Set pressure: 1.9 bar
Nostral 3/8″ 1.9 bar Thread: 3/8″ male
Nostral 3/8″ 1.9 bar Standard: EN ISO 4126-1, CE Cat. 1
Nostral 3/8″ 1.9 bar Material: CW614N brass
Nostral 3/8″ 1.9 bar Temperature range: -10 to 200 °C
Nostral 3/8″ 1.9 bar Brand: Nostral

Machines Listed

Cimbali M15 to M39, Wega Atlas, Nova and Polaris, Astoria Gloria and Sabrina, La Marzocco Linea and FB80, Faema E61 and E98, Profitec Pro 500 and Expobar. Check your old valve’s stamp first. A 1/2″ port takes the 1/2″ 1.8 bar valve.

If a safety valve has been venting, the pressure switch needs checking too; our repair team can fit it for you. More boiler fittings are listed under coffee machine spare parts.