Watts 0265220 USVR 3/4" Automatic Angled Differential Bypass valveThe Watts 0265220 USVR is a 3 4" automatic angled differential bypass valve designed for heating systems with zone or thermostatic radiator valve control. Fitted between flow and return, it maintains boiler circulation and prevents unnecessary cycling. Adjustable from fully open (position 0) to near closing at 0. 5 bar (position 7). Product No: 0265220 Connection: 3 4" female inlet x male union Body: Brass CW617N Max. operating pressure: 6 bar Max.

installer-adjustable between 30°C and 43°C

and hot water cylinder applications

1994–2000)

The Watts EDP279190 is a Series 174A bronze body pressure relief valve designed for pressure protection of hot water heating boilers and space heating equipment

Connection: 1/2" male x female BSP

not spinning

Power rating: 6

KIWA REG 4

expanded water from hot water cylinders and calorifiers

Replace when sparkling water output becomes flat or the CO2 cartridge is exhausted

Application: Heating and plumbing distribution systems

or on/off valve in heating