Safety Valve - Atlantic CORHYDRO Notice D'installation, D'utilisation Et D'entretien

5.2. Hydraulic safety dimensions
The safety unit must comply with the standard. It must be positioned directly on the cold
water inlet.
The scale of the hydraulic safety provision depends on the capacity of the device.
Table of recommended hydraulic safety systems for storage tanks:
EN
Storage tank model
Important:
• If an array of several devices is installed, a valve assembly must be fitted to each tank and
a non-return flap on the overall supply pipe.
• If the pressure of the distribution network exceeds 5 bar, a pressure reducer must be fitted
to the overall supply pipe.
• If metal piping is used, use a cast-iron sleeve or a dielectric pipe joint (brass connectors
are prohibited).
5.3. Hydraulic safety installation
5.3.1. Safety units:
Safety units are always installed on the cold water inlet to the tank. When installing the unit,
respect the flow direction indicated by arrows on the body of the security unit.
5.3.2. Safety valves:
The safety valves are fitted to the tank inlet using a T (see diagram below).
1 single G 1¨ unit
No non-return valve or flap should ever be fitted between the safety valve or safety unit
and the tank.
A non-return flap preceded by a valve must be fitted to the cold water inlet if the tank is
equipped with a safety valve. To avoid scaling of these components, operate the safety unit
at least once a month by moving its controls to various positions.
Page 20 / 84
500
Safety unit G 1"
SAFETY UNIT
On cold water inlet only
1¼¨ kit with 2 G 1¨ units
CORHYDRO / CORFLEX
750 900 1000
G 1¼" (2 x G 1")
Safety valve/non-return flap/valve
1500 2000 2500

SAFETY VALVE

On tank inlet
Valve diameter ≥
tank connector diameter
U0594060-B
3000