消声止回阀

Remarks:
1. Design according to EN16767:2016, BS5153:1974
2. Flange according to EN 1092-2:1997
3. Test according to EN 12266-1:2012
Working pressure: 16kg/cm³ Shell test pressure: 25kg/cm³ Seat test pressure: 18kg/cm³
4. Media: water, neutral oil
5. External and internal coating: 100% fusion-bonded epoxy
6. SS304, 316 bolts/nuts/washers are available on request

产品详情

DIMENSION:MM

DN	L	D	K	D1	n-d	b	f	Weight/kg
50	140	165	125	99	4-19	19	3	7.3
65	140	185	145	118	4-19	19	3	9.1
80	152	200	160	132	8-19	19	3	11.5
100	185	220	180	156	8-19	19	3	14
150	248	285	240	211	8-23	19	3	27
200	318	318	295	266	12-23	20	3	37

MATERIAL FOR MAIN PARTS

No.	Part Name	Material	Standards
1	Body	Ductile Iron	EN1563-GJS-450	BS2789
2	Body Seat	Ductile Iron	EN1563-GJS-450	BS2789
3	Gasket	EPDM	EN681-1	BS2494
4	Screw	Carbon Steel	EN ISO1207
5	Disc	Ductile Iron	EN1563-GJS-450	BS2789
6	Spring	Stainless Steel	EN10088-1 1.4301