product manual
J41B type PN40 stop valve for ammonia: manual, flange connection, straight-through, seat sealing surface material is nylon plastic, nominal pressure PN40, valve body material is carbon steel stop valve. Applicable medium: liquid, gas, ammonia, nitrogen, hydrogen.
Structure and use1 The center flange is a square structure, and the stem is connected by a hidden rod.
2 The sealing surface of the valve body adopts a spherical convex shape, which is in line with the valve flap to seal.
3 The sealing surface is made of Babbitt alloy, which has good sealing performance and long service life.
Product Parts Materialsproduct type | Part Name |
Body, bonnet | Valve stem | filler | Sealing surface | Gasket | fastener |
J41B-(16/25)C | Cast steel | Carbon steel | Teflon | Babbitt | Asbestos plastic sheet | High-quality carbon steel |
J41B-(16/25)O | Ductile iron | Carbon steel | Teflon | Babbitt | Asbestos plastic sheet | High-quality carbon steel |
J41B-(16/25)K | Malleable steel | Carbon steel | Teflon | Babbitt | Asbestos plastic sheet | High-quality carbon steel |
Product shape and structure size
Nominal diameter | The main dimensions and connection dimensions |
L | D | D1 | D2 | b | Z-d | H | D0 |
J41B-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 |
J41B-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 |
All text, data and pictures in this article are for reference only. If you need to see more product performance, structure size, price and other details, please contact us.
