Safety Valves - Atlantic CORHYDRO Manual De Instalación, Uso Y Mantenimiento

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:
Storage tank model
Important:
• If an array of several devices is installed, a valve assembly must be fi tted to each tank and
a non-return fl ap on the overall supply pipe.
• If the pressure of the distribution network exceeds 5 bar, a pressure reducer must be fi tted
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 fl ow direction indicated by arrows on the body of the security unit.

5.3.2. Safety valves:

The safety valves are fi tted to the tank inlet using a T (see diagram below).
On cold water inlet only
1 single G 1¨ unit
No non-return valve or fl ap should ever be fi tted between the safety valve or safety unit
!
and the tank.
A non-return fl ap preceded by a valve must be fi tted 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.
18.08.15
500
G 1"
Safety unit
SAFETY UNIT
1¼¨ kit with 2 G 1¨ units
CORHYDRO / CORFLEX
750 900 1000
G 1¼" (2 x G 1")
Safety valve/non-return fl ap/valve
1500 2000 2500
SAFETY VALVE
On tank inlet
Valve diameter ≥
tank connector diameter
Page 21 / 86
EN
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