Single small orifice air release valve with DN25 isolation valve

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Single small orifice air release valve with DN25 isolation valve

Remarks:
1.Design according to BS EN 1074-4:2000
2.Test according to EN 12266-1:2012
Working pressure:16kg/cm³ Shell test pressure:25kg/cm³ Seat test pressure:18kg/cm³
3.Media: water, neutral oil
4.External and internal coating:100% fusion-bonded epoxy
5.Material 304, 316 used in bolt, nut and washer can be available by requirements.

Product details

DIMENSION : MM

DN	W	H
15	132	233
20	132	233
25	132	233
32	132	233

FLANGE DIMENSION

Flange	DN	H	D	K	D1	n-d	b	f	w	Weight/kg
40-65	25	218	185	110-145	118	4-19	19	3	132	7
80	25	218	200	160	132	8-19	19	3	132	7.5

MATERIAL FOR MAIN PARTS

No.	Part Name	Material	Standards
1	Body	Ductile Iron	EN1563-GJS-450-10	BS2789
2	Float	ABS
3	Nut	Carbon Steel	EN ISO4032	BS3692
4	Washer	Carbon Steel	EN ISO7089	BS4320
5	O-ring	EPDM	EN681-1	BS2494
6	Cover	Ductile Iron	EN1563-GJS-450-10	BS2789
7	Hexagon Bolt	Carbon Steel	EN ISO4014	BS3692
8	Adjusting Screw	Stainless Steel	EN ISO15481	BS4174
9	Gasket	EPDM	EN681-1	BS2494
10	Cap	Nylon/Brass
11	Seat	EPDM	EN681-1	BS2494
12	Bracket	Nylon
13	Hinge Pin	Stainless Steel	EN ISO1234	BS1574
14	Isolation Valve	Brass		BS2874 CZ137
15	Flange	Ductile Iron	EN1563-GJS-450-10	BS2789