Ammonia stop valve

J41B type PN40 ammonia cut-off valve: manual, flange connection, straight-through type, seat sealing surface material is nylon plastic, notar pressure PN40, valve body material is carbon steel. Applicable media: liquid, gas, ammonia, nitrogen, hydrogen.

[Structure and Use]

1. The Zhongtong flange is a square structure, and the stem is connected by a hidden rod.

2. The seal face position of the valve body is convex, which is sealed with the disc with a thread.

3. The sealing surface is made of pasteurized alloy, with good sealing performance and long service life.

Products and services that meet fluid control requirements

Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.

Detail

Usage and Performance Specifications

[Product Component Materials]

Product type	Part name
Product type	Valve body, valve cover	Valve stem	Packing material	Sealing surface	Gasket	Fastener
J44B-(16/25)C	Cast steel	Carbon steel	Polytetrafluoroethylene	Babbitt alloy	Asbestos rubber board	High-quality carbon steel
J44B-(16/25)O	Ductile iron	Carbon steel	Polytetrafluoroethylene	Babbitt alloy	Asbestos rubber board	High-quality carbon steel
J44B-(16/25)K	Malleable cast steel	Carbon steel	Polytetrafluoroethylene	Babbitt alloy	Asbestos rubber board	High-quality carbon steel

Product appearance and structural dimensions

Nominal diameter	Main external dimensions and connection dimensions
Nominal diameter	L	D	D1	D2	b	Z-d	H	D0
J44B-16C
15	130	95	65	45	14-2	4-Φ14	170	120
20	150	105	75	55	14-2	4-Φ14	190	140
25	160	115	85	65	14-2	4-Φ14	205	160
32	180	135	100	78	16-2	4-Φ18	270	180
40	200	145	110	85	16-3	4-Φ18	310	200
50	230	160	125	100	16-3	4-Φ18	358	240
65	290	180	145	120	18-3	4-Φ18	373	240
80	310	195	160	135	20-3	8-Φ18	435	280
100	350	215	180	155	20-3	8-Φ18	500	300
125	400	245	210	185	22-3	8-Φ18	614	320
150	480	280	240	210	24-3	8-Φ23	674	360
200	600	335	295	265	26-3	12-Φ23	811	400
250	650	405	355	320	30-3	12-Φ25	969	450
300	750	460	410	375	30-3	12-Φ25	1145	580
350	850	520	470	435	34-4	16-Φ25	1280	640
400	980	580	525	485	36-4	16-Φ30	1452	640
J44B-25C
15	130	95	65	45	16-2	4-Φ14	170	120
20	150	105	75	55	16-2	4-Φ14	190	140
25	160	115	85	65	16-2	4-Φ14	205	160
32	180	135	100	78	18-2	4-Φ18	270	180
40	200	145	110	85	18-3	4-Φ18	310	200
50	230	160	125	100	20-3	4-Φ18	358	240
65	290	180	145	120	22-3	8-Φ18	373	240
80	310	195	160	135	22-3	8-Φ18	435	280
100	350	230	190	160	24-3	8-Φ23	500	300
125	400	270	220	188	28-3	8-Φ25	614	320
150	480	300	250	218	30-3	8-Φ25	674	360
200	600	360	310	278	34-3	12-Φ25	811	400
250	650	425	370	332	36-3	12-Φ30	969	450
300	750	485	430	390	40-4	16-Φ30	1145	580
350	850	550	490	448	44-4	16-Φ34	1280	640
400	980	610	550	505	48-4	16-Φ34	1452	640