Special brass valves, for special applications, available in the following models:
Inclined: 418 also available in the version with built-in spring check 419 (The spring placed inside prevents the return of the flow).
Inside the body, the flow area of the fluid is regulated by a moving shutter. When the obturator rests on the seat the valve is completely closed, when instead it is at its maximum distance, the valve is completely open. They are operated by means of a handwheel placed on the rod. Recommended for water, gas and air systems.
Maximum working temperature: 80 ° C
Threading: EN – ISO 228/1
Pressure gauge holder: 424
Pressure gauge holder M/F with stuffing box, bleed hole, thermoplastic handle.
Connections Threads UNI EN ISO 228-1
Allowed fluids: Non-hazardous liquids
Maximum working temperature 90 ° C
Conveyed-exhaust limiting pressure valves.
Available in the version with metal seat: 506 or with rubber seat: 506TG
Brass F/F conveyed-exhaust limiting pressure valves, adjustable from 0 to 10/16 bar
Free-exhaust straight pressure limiting valve: 570
Male threade, brass, filetto maschio, adjustable from 0 to 16 bar.
Admitted fluids gases, vapors and non-dangerous liquids.
UNI EN ISO 228-1 threads. Filettature: UNI EN ISO 228-1
Metal seat: from -10 a + 200° C
Rubber seat: from -10 a + 70° C
Expansion joint: 600
Threaded ISO 228/1
Maximum working pressure 10 bar, PN10
Working temperature: from -10° C to + 120 ° C
Automatic air vent “ROMA” available with plug cock: 606 Without plug cock: 606SRM
Automatic valve with single float, used for the evacuation and discharge of large volumes of air from water supply pipes. This sort of air vent may only be
Maximum working pressure (PN)16 bar
Minimum accumulation 0.5 bar (Grade A according to EN 12266-1)
Range of operation air evacuation from 0.5 bar to 16 bar (tolerance ± 10% max. detected)
Maximum working temperature (TS) 0°C (excluding ice) + 60°C