1. Main parts and materials & Standard & Testing

Parts Name	Material
Body、Bonnet	Cast Iron ASTM A126 CL. B
Disc	Cast Iron ASTM A126 CL. B+Bronze B62/Brass B16/Stainless Steel 2Cr13
Stem	Brass B16/Stainless Steel 2Cr13
Seat Ring	Bronze B62/Brass B16/Stainless Steel 2Cr13

*Design and Manufacture: MSS SP-70; Face to Face standard: ANSI 16.10; Flange End standard: ANSI 16.1.
*Nominal pressure: 250PSI; Shell test: 875PSI; Seal test: 500PSI.

2. Drawing & Dimension

NPS	2	2.5	3	4	6	8	10	12
DN	50	65	80	100	150	200	250	300
L	215.9	241.3	282.45	304.8	403.35	419.1	457.2	501.6
H1	382.5	423.9	476.2	595.3	806.4	1012.9	1339.8	1524
H2	320.5	349.25	388.8	482.6	638	793.7	1060.4	1193.8
D	165.1	190.5	209.55	254	317.5	381	444.5	520.7
D1	127	149.35	144.53	200.15	269.75	330.2	387.3	450.85

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