J41B ammonia stop valve

J41B Flanged ammonia globe valve Structure characteristics and uses:
1. The middle flange is a square structure, and the valve stem is connected by an interbar.
2. The sealing surface of the valve body is spherical and convex, and the valve foot is sealed with a line.
3. The sealing surface adopts babbitt alloy, which has good sealing performance and long service life
Main performance specifications of J41B flanged ammonia globe valve:
Applicable medium: liquid, gas, ammonia, nitrogen, hydrogen
Applicable temperature: -10ºC-150ºC
J41B Flanged ammonia stop valve test pressure:

Nominal pressure PN(MPa)	Test pressure (MPa)
Nominal pressure PN(MPa)	Shell strength test	Seal test
1.6	2.4	1.76
2.5	3.75	2.75

J41B Flanged ammonia globe valve Main parts materials:

Product type	Part name
Product type	Body, bonnet	Stem	Packing	Sealing surface	Shims	Fasteners
J41B-16/25C	Cast steel	Carbon steel	Tef-lon	Ba sub alloy	Asbestos rubber sheet	High quality carbon steel
J41B-16/25Q	Nodular cast iron	Carbon steel	Tef-lon	Babbitt	Asbestos rubber sheet	High quality carbon steel
J41B-16/25K	Malleable cast iron	Carbon steel	Te-flon	Babbitt	Asbestos rubber sheet	High quality carbon steel

J41B Flanged ammonia globe valve main size table:

Nominal diameter DN(mm)	Main overall dimensions and connection dimensions (mm)
Nominal diameter DN(mm)	L	D	D1	D2	D6	b	f	f2	z-d	H	DO
J41B-16C J41B-16Q J41B-16K
10	130	90	60	40	35	14	2	4	4-14	196	120
15	130	95	65	45	40	14	2	4	4-14	196	120
20	150	105	75	55	51	16	2	4	4-14	196	140
25	160	115	85	65	58	16	2	4	4-14	204	160
32	180	135	100	78	66	18	2	4	4 to 18	208	160
40	200	145	110	85	76	18	3	4	4 to 18	248	200
50	230	160	125	100	88	20	3	4	4 to 18	248	200
65	290	180	145	125	110	22	3	4	4 to 18	321	240
80	310	195	160	135	121	24	3	4	8 to 18	325	240
100	350	215	180	155	150	24	3	4.5	8 to 18	371	280

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