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Natural gas globe valve

Product Overview

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 ℃.

Structural characteristics

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.

Execution standard

Design and manufacture :GB/T12235
Structure length :GB/T12221
Connection flange :JB/T79.2
Pressure temperature :JB/T74
Test: JB/T9092

Performance parameter

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

Product Dimensions

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

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