Discharge flow rate at 8,4 bar (+20% Po): - with water:
>325 l/h (DN 15);
> 650 l/h (DN 20); 1.300 l/h (DN 25)
- with steam:
>100kg/h (DN 15);
> 225 kg/h (DN 20); 325 kg/h (DN 25)
Componenti
Components
Komponenten
Composants
Componentes
Componentes
Onderdelen
Cold water inlet
- 25 mm Ø
(rubber seals)
Connection to discharge pipe:
- 32 mm Ø
(glued)
83–100 mm
Connection to heater
➪
6
7
4
2
1
8
5
3
Technical
specification
Materials:
- Body: - DN 15 and DN 20:
brass EN 12165 CW617N, chrome plated
- DN 25:
brass EN 12165 CW617N
- Ball valve and check valve:
brass EN 12164 CW614N
- Safety relief valve obturator:
EPDM
- Safety relief valve seat:
- 526150 and 526151:
brass EN 12165 CW617N
- 526142, 526152, 526153 and 526163:
stainless steel EN 10088-3 (AISI 303)
- Seals:
EPDM
- Safety relief valve spring:
stainless steel EN 10270-1
- Check valve spring:
stainless steel EN 10270-3 (AISI 302)
- Connection kit (code 650972): - body:
stainless steel
- fittings:
brass EN 12164 CW614N
Medium: water
Max. working temperature:
120 °C
Max. inlet temperature:
65 °C
Max. working pressure:
10 bar
Safety relief valve opening pressure:
7 bar
Connections:
inlet 1/2”–1” M; outlet 1/2”–1” F; discharge 1” M (ISO 228-1)
Size of the
hydraulic safety
group
Maximum power output of
the water heater
- - - - - - - - - - - -
for direct heating systems
EN 1487
Maximum power output of the
water heater
- - - - - - - - - - - -
for indirect heating systems
EN 1488
Maximum volume of
the water heater
EN 1488
DN 15
4 kW
75 kW
200 l
DN 20
10 kW
150 kW
1000 l
DN 25
18 kW
250 kW
5000 l
For further details see EN 1487 - clause 12.
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