Diaphragm pressure relief valve

Detailed Product Description 1.Flexible in action 2.Long in service life 3.Stable operation

Diaphragm pressure relief valve

Diaphragm pressure relief valve is installed in the high-rise building and fire water piping system. When the pressure in the pipeline higher than the relief valve’s setting pressure, it will automatically open the pressure relief to protect the pipe safety.

 

 

                                                                               1.Small ball valve  2.Diverter valve  3.Small ball valve

Materials for main parts:

Diaphragm type
No.	Name of parts	Material
1	Bonnet	Cast Iron,Ductile Iron,Carbon Steel,SS
2	Spring	Spring Steel,SS
3	Diaphragm gland	Ductile Iron
4	Diaphragm	NBR
5	Stem	2Cr13
6	Disc	Ductile Iron
7	O-ring	NBR
8	O-ring Gland	Ductile Iron
9	Valve seat	SS
10	Body	Cast Iron,Ductile Iron,Carbon Steel,SS

 

Main external dimensions(mm):

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600
L	203	216	241	292	330	356	457	533	610	686	762	864	914	1067
H	300	337	467	520	580	640	778	889	1010	1037	1264	1294	1324	1600

 

  Installation schematic diagram:

 

 Pojects:

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Diaphragm pressure relief valve