Caleffi 519002 GLW 22mm - Ecopas full flow differential bypass Valve

Product no: 519002 GLW

Caleffi 22mm Comp - Series 519 Ecopas Full Flow Differential Bypass Valve

(Independently tested to meet British Gas specifications) - 519002GLW

Size: 22mm compression x compression

Differential bypass valve for use on heating systems where control is by zone or thermostatic radiator valves.

Fitted between flow and return permitting circulation through boiler and helps prevent unnecessary cycling of boiler
Independently tested t meet British Gas specifications.

Compression joints for use on copper pipes

Used in a system with variable flow rates

Simple to install, with only two joints to fix.

Can be fitted in any orientation

Approvals: WRAS

This 519 differential bypass valve uses a stainless steel compression spring to exert a pre-determined force onto the disc.
The force is adjustable via the control knob to set the required differential pressure between 1 to 6 metre head, which corresponds to 10 - 60 kPa. The setting is then locked using the locking screw, which is on the side of the control knob. This prevents unauthorised adjustment.