product manual
J41B type PN40 globe 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 purpose
1. 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 materials
| product type | Part Name | |||||
| Body, bonnet | Valve stem | filler | Sealing surface | Gasket | fastener | |
| J41B-(16/25)P | stainless steel | stainless steel | Teflon | Babbitt | Asbestos plastic sheet | stainless steel |
Product appearance 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 |
