1/2'' 3/4'' Boiler use brass safety relief valve
1. Features and specification of safety relief valve
Maxi. Working pressure 10bar
Preset nominal pressure 2.5-3-6-7-8bar
Minimum sealing pressure -5% of the preset
Over pressure 10% of the preset
Reset value -20% of the preset
Max. Operating temperature 80ºC
Pipeline connection Thread according to ISO228/1
2. Dimension
| Dn |
Dn1 |
H |
H1 |
H2 |
L |
D |
| 1/2'' |
1/2'' |
71 |
23.5 |
9 |
28 |
31 |
| 1/2'' |
3/4'' |
73.5 |
26 |
9 |
30 |
31 |
| 3/4'' |
3/4'' |
73.5 |
26 |
9 |
30 |
31 |
3. Material specification of safety relief valve
| No. |
Part Name |
Material |
| 1 |
Body |
Brass |
| 2 |
Diaphragm |
EPDM |
| 3 |
Stem |
Brass |
| 4 |
Plate |
Nylon |
| 5 |
Gasket |
Red vulcanized fiber |
| 6 |
Inferior plug |
Nylon |
| 7 |
Spring |
Spring steel |
| 8 |
Spring plug |
Brass |
| 9 |
Handle |
Nylon |
| 10 |
Washer |
Steel |
| 11 |
Screw nut |
Steel |
| 12 |
Switch |
AI. |
4. Description of safety relief valve
Safety relief valve is typically used for controlling pressure on boiler in heating system, on stored hot water cylinders and in water systems generally. When the calibrated pressure is reached, the valve opens automatically and discharges atmosphere to prevent whole system in safety from over pressure.
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About us
We are specialized in HAVC system parts and brass valve fields for more than 25 years, Our main products cover brass manifold, radiator valve, motorized valve, ball valve, gate valve,check valve, stop valve, safety valve, air vent valve, brass fitting and so on with more than 40 series and 2000 varieties.
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