Swing Check valve Specification	Iron PN16 Check Valve Application
Flange dimensions :DIN2533  Face to face : DIN3202-F6 /EN558 Testing confirm to DIN3230	Working Temp: 100 °C Working Pressure: PN10 or PN16 Suitable Media: Water,Steam,Oil ect. Not recommended for Steam Service. Caution: FREEZING WEATHER PRECAUTION - Subsequent to testing a piping system,Iron PN16 Check Valve should be left in an open position to allow complete drainage.
Ductile Iron Swing Check Valve Materials
No Part Name Materials 1 Body ASTM A126A(B) GG20 GG25 2 Seat Ring ASTM B36/B62,SS410 Brass,Bronze 3 Disc  ASTM A126A(B) GG20 GG25 4 Hinge Pin A216 WCB GS-C25 5 Hinge ASTM A126A(B) GG20 GG25 6 Nut A216 WCB GS-C25 7 Bonnet ASTM A126A(B) GG20 GG25 8 Split Pin A216 WCB GS-C25 9 Bonnet Gasket Graphite Graphite 10 Bolt A216 WCB GS-C25 11 Washer A216 WCB GS-C25 12 Nut A216 WCB GS-C25
Dimensions(DIN2533 Flange drilling)

DN	D	D1	D2	L	H	b	n	d
50	165	125	102	200	150	17	4	18
65	185	145	122	240	160	17	4	18
80	200	160	138	260	170	19	8	18
100	220	180	158	300	180	21	8	18
125	250	210	188	350	215	23	8	18
150	285	240	212	400	260	23	8	23
200	340	295	268	500	294	27	12	23
250	405	355	320	600	370	29	12	27
300	460	410	378	700	412	29	12	27
350	520	470	438	800	445	32	16	27