Double orifice air release valve

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Double orifice air release 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	L	H	D	K	D1	D2	n-d	b	f	W	Weight/kg
40	227	319	150	110	84	40	4-19	19	3	206	20
50	227	319	165	125	99	50	4-19	19	3	206	20
40/65	227	319	185	110-145	118	50	4-19	19	3	206	21
65	227	319	185	145	118	65	4-19	19	3	206	21.5
80	227	319	200	160	132	80	8-19	19	3	206	22
100	238	413	220	180	156	100	8-19	19	3	280	34.5
150	238	413	285	240	211	150	8-23	19	3	280	38
200	238	413	340	295	266	150	12-23	20	3	280	43
250	238	413	405	355	319	150	12-28	22	3	280	46.5
300	238	413	460	410	370	150	12-28	24.5	4	280	50

MATERIAL FOR MAIN PARTS

No.	Part Name	Material	Remarks		No.	Part Name	Material	Remarks
1	Body	Ductile Iron	EN1563-GJS-450-10	BS2789	12	O-ring	EPDM	EN681-1	BS2494
2	Float Guide	ABS			13	Side Body	Ductile Iron	EN1563-GJS-450-10	BS2789
3	Float	ABS			14	Cap	Nylon/Brass
4	Support	ABS			15	Gasket	EPDM	EN681-1	BS2494
5	Seat Ring	EPDM	EN681-1	BS2494	16	Bracket	Nylon
6	Seat Support	ABS			17	Adjusting Screw	Stainless Steel	EN ISO15481	BS4174
7	Cover	Ductile Iron	EN1563-GJS-450-10	BS2789	18	Seat	EPDM	EN681-1	BS2494
8	Washer	Carbon Steel	EN ISO7089	BS4320	19	Hinge Pin	Stainless Steel	EN ISO1234	BS1574
9	Nut	Carbon Steel	EN ISO4032	BS3692	20	Side Float	ABS
10	Hexagon Bolt	Carbon Steel	EN ISO4014	BS3692	21	Hexagon Bolt	Carbon Steel	EN ISO4014	BS3692
11	Cowl	Ductile Iron	EN1563-GJS-450-10	BS2789	22	Washer	Carbon Steel	EN ISO7089	BS4320