Double Orifice Air Release Valve

1. Design according to EN 1074-4:2000
2. Flange according to EN 1092-2:1997
3. Testing according to EN 12266-1:2012
Working pressure: 16kgf/cm2
Shell test pressure: 25kgf/cm2
Seat test pressure: 18kgf/cm2
4. Media: water, neutral oil
5. External and internal coating:100% fusion-bonded epoxy
6. SS304, 316 bolts/nuts/washers are available on request

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DIMENSION : MM

DN	L	H	D	K	D1	D2	nd	b	f	W	Weight/kg
40	232	373	150	110	84	40	4-19	19	3	180	19.50
50	232	373	165	125	99	50	4-19	19	3	180	19.50
40-65	232	373	185	110-145	118	50	4-19	19	3	180	20.00
65	232	373	185	145	118	65	4-19	19	3	180	20.22
80	232	373	200	160	132	80	8-19	19	3	180	21.00
100	238	458	220	180	156	100	8-19	19	3	226	31.50
150	238	458	285	240	211	150	8-23	19	3	226	35.00
200	238	458	340	295	266	150	12-23	20	3	226	40
250	238	458	405	355	319	150	12-28	22	3	226	49.00
300	238	458	460	410	370	150	12-28	24.5	4	226	59.00

MATERIAL FOR MAIN PARTS

No..	Part Name	Ibikoresho	Standards Oya.		No..	Part Name	Ibikoresho	Standards Oya.
1	Umubiri	Ductile Iron	EN1563-GJS-450	BS2789	13	Side Body	Ductile Iron	EN1563-GJS-450	BS2789
2/3	Float Guide	ABS			14	Cap	Nylon
4	Float	ABS			15	Gasket	EPDM	EN681-1	BS2494
5	Support	ABS			16	Bracket	Nylon
6	Seat Ring	EPDM	EN681-1	BS2494	17	Adjusting Screw	Stainless Steel	EN ISO15481	BS4174
7	Seat Support	ABS			18	Seat	EPDM	EN681-1	BS2494
8	Cover	Ductile Iron	EN1563-GJS-450	BS2789	19	Hinge Pin	Stainless Steel	EN ISO1234	BS1574
9	Washer	Ibyuma bya Carbone	EN ISO7089	BS4320	20	Side Float	ABS
10	Nut	Ibyuma bya Carbone	EN ISO4032	BS3692	21	Hexagon Bolt	Ibyuma bya Carbone	EN ISO4017	BS3692
11	Hexagon Bolt	Ibyuma bya Carbone	EN ISO4017	BS3692	22	Washer	Ibyuma bya Carbone	EN ISO7089	BS4320
12	O-ring	EPDM	EN681-1	BS2494

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