旋启式止回阀

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	H	D	K	D1	n-d	b	f	Weight/kg
50	203	134	165	125	99	4-19	19	3	15
65	216	140	185	145	118	4-19	19	3	19
80	241	167	200	160	132	8-19	19	3	27
100	292	180	220	180	156	8-19	19	3	36
125	330	197	250	210	184	8-19	19	3	55
150	356	229	285	240	211	8-23	19	3	70
200	495	300	340	295	266	12-23	20	3	120
250	622	348	405	355	319	12-28	22	3	205
300	698	384	460	410	370	12-28	24.5	4	263

MATERIAL FOR MAIN PARTS

No.	Part Name	Material	Standards		No.	Part Name	Material	Standards
1	Body	Ductile Iron	EN1563-GJS-450	BS2789	7	Hexagon Bolt	Brass	EN ISO4017	BS3692
2	Body Seat	Gunmetal	EN1982	BS1400 LG2	8	Hexagon Bolt	Carbon Steel	EN ISO4017	BS3692
3	Disc Seat	Gunmetal	EN1982	BS1400 LG2	9	Bonnet	Ductile Iron	EN1563-GJS-450	BS2789
4	Disc	Ductile Iron	EN1563-GJS-450	BS2789	10	Plug	Stainless Steel	EN10088-1 1.4301
5	Axle	Stainless Steel	EN10088-1 1.4301		11	O-ring	EPDM	EN681-1	BS2494
6	Washer	Brass	EN ISO7089	BS4320