1. Main parts and materials & Standard & Testing

Parts Name	Material
Body、Bonnet	Grey iron GG25
Disc	A105+2Cr13、GG25+2Cr13
Stem	Stainless Steel
Seat Ring	Stainless Steel

*Face to Face standard: DIN3202/F1, Flange End standard: DIN2532/2533.
*Nominal pressure: 1.6Mpa; Shell test: 2.4Mpa; Seal test: 1.8Mpa.

2. Drawing & Dimension

DN	15	20	25	32	40	50	65	80	100	125	150	200	250	300
L	130	150	160	180	200	230	290	310	350	400	480	600	730	850
D	95	105	115	140	150	165	185	200	220	250	285	340	405	460
D1	65	75	85	100	110	125	145	160	180	210	240	295	355	410

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