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, 125PSI; Shell test: 350PSI, 875PSI; Seal test: 200PSI, 500PSI.

2. Drawing & Dimension

Pressure	NPS	2	2.5	3	4	5	6	8	10
	DN	50	65	80	100	125	150	200	250
125LB	L	203	216	240	292	330	355	495	622
	D	152	178	190	229	254	279	343	406
	D1	120.7	139.5	152.5	190.5	216	241.5	298.5	362
250LB	NPS	2	2.5	3	4	6	8
	DN	50	65	80	100	150	200
	L	266.7	292.1	317.5	355.6	444.5	553.4
	D	165.1	190.5	209.55	254	317.5	381
	D1	106.43	125.48	144.53	176.28	246.13	303.21

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