Natural gas globe valve is a kind of non corrosive gas ammonia, liquid ammonia special valve, liquid ammonia globe valve is designed for ammonia gas, gas pipeline or device. Attention has been paid to fire protection requirements in structure. The packing is made of polytetrafluoroethylene, and the sealing surface of ammonia stop valve is Babbitt alloy seal. The sealing is reliable and the concealed rod design is absolutely free of leakage. PTFE or nylon is used as the sealing material of the valve body, which is soft sealing. It is suitable for ammonia gas, liquefied petroleum gas pipeline system, as the opening and closing device, and also suitable for other pipelines with temperature ≤ 80 ℃.
Series of stop valves are suitable for cutting off or connecting the pipeline medium under nominal pressure PN1.6-42.0mpa (CL150-CL2500) and working temperature -46-550 ℃ in petroleum, chemical industry, pharmaceutical industry, chemical fertilizer industry, electric power industry and other working conditions.
Its main structural features are as follows:
1. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance.
2, the surface welding Co base hard alloy, wear resistance, corrosion resistance, abrasion resistance, long service life.
3, the stem after conditioning and surface nitriding treatment, has good corrosion resistance and abrasion resistance.
4. The valve is equipped with reverse sealing structure, which ensures reliable sealing.
5. The material and flange size of the parts can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.
Design and manufacture :GB/T12235
Structure length :GB/T12221
Connection flange :JB/T79.2
Pressure temperature :JB/T74
Test: JB/T9092
Nominal size: DN10~150mm
Nominal pressure: PN1.6-16.0MPa
Applicable temperature: ≤550℃
Main materials: 25.WCB, Chromium-Nickel, chromium-Nickel-molybdenum steel, chromium-molybdenum steel
Suitable medium: water, oil, steam, nitric acid, acetic acid, etc
DN(mm) | L | D | D1 | K | D2 | b | f1 | f2 | Z-d | H | W0 | ||
J41B-25C、J41B-25Q、J41B-25K | |||||||||||||
10 | 130 | 90 | 60 | 40 | 35 | 16 | 2 | 4 | 4-14 | 196 | 120 | ||
15 | 130 | 95 | 65 | 45 | 40 | 16 | 2 | 4 | 4-14 | 196 | 120 | ||
20 | 150 | 105 | 75 | 58 | 51 | 18 | 2 | 4 | 4-14 | 196 | 120 | ||
25 | 160 | 115 | 85 | 68 | 58 | 18 | 2 | d | 4-14 | 201 | 120 | ||
32 | 180 | 140 | 100 | 78 | 66 | 18 | 2 | 4 | 4-18 | 208 | 120 | ||
40 | 200 | 150 | 110 | 88 | 76 | 18 | 3 | d | 4-18 | 248 | 160 | ||
50 | 230 | 165 | 125 | 102 | 88 | 20 | 3 | 4 | 4-18 | 248 | 160 | ||
65 | 290 | 185 | 145 | 122 | 110 | 22 | 3 | 4 | 8-18 | 321 | 240 | ||
80 | 310 | 200 | 160 | 138 | 121 | 24 | 3 | 4 | 8-18 | 325 | 240 | ||
100 | 350 | 235 | 190 | 162 | 150 | 24 | 3 | 4.5 | 8-22 | 371 | 280 | ||
125 | 400 | 270 | 220 | 188 | 176 | 26 | 3 | 4.5 | 8-26 | 400 | 320 | ||
150 | 480 | 300 | 250 | 218 | 204 | 28 | 3 | 4.5 | 8-26 | 432 | 320 | ||
DN(mm) | L | D | D1 | K | D2 | b | f1 | f2 | Z-d | H | W0 | ||
J41B-40C、J41B-40Q、J41B-40K | |||||||||||||
15 | 130 | 95 | 65 | 45 | 40 | 16 | 2 | 4 | 4-14 | 165 | 110 | ||
20 | 150 | 105 | 75 | 58 | 51 | 18 | 2 | 4 | 4-14 | 170 | 120 | ||
25 | 160 | 115 | 85 | 68 | 58 | 18 | 2 | 4 | 4-14 | 195 | 120 | ||
32 | 180 | 140 | 100 | 78 | 66 | 18 | 2 | 4 | 4-18 | 200 | 140 | ||
40 | 200 | 150 | 110 | 88 | 76 | 18 | 3 | 4 | 4-18 | 247 | 160 | ||
50 | 230 | 165 | 125 | 102 | 88 | 20 | 3 | 4 | 4-18 | 265 | 180 | ||
65 | 290 | 185 | 145 | 122 | 110 | 22 | 3 | 4 | 8-18 | 310 | 220 | ||
80 | 310 | 200 | 160 | 138 | 121 | 24 | 3 | 4 | 8-18 | 340 | 240 | ||
100 | 350 | 235 | 190 | 162 | 150 | 24 | 3 | 4.5 | 8-22 | 380 | 280 |