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Boiler Use Safety Relief Valve

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...

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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  80℃

  • 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.


5. Certification of Huibo valve

Huibo-valve-certification_.jpg

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