DSZ44H Water Seal Gate Valve
Product overview
Product model: DSZ44H
Nominal diameter: DN50 ~ 800mm
Nominal pressure: PN0.6 ~ 1.6MPa
Main material: carbon steel, alloy steel
Applicable temperature: ≤550℃
Design standards: API 600, ASME B16.34, DL/T 531, JB/T3595
Structure Length: DL/T 531, ASME B16.10, GB/T 12221
Connection standard: DL/T 531, JB/T3595, ASME B16.25
Pressure test: API 598, GB/T 13927, JB/T 9092
Pressure-temperature grades: API 598, GB/T 13927, GB/T 26480, JB/T9092, JB/T3595
DSZ44H Water Seal Gate Valve product features
1, the use of flange bolts connection, both ends of the branch pipe flange connection or butt welding connection.
2, Stuffing box is designed into a water seal structure, access to 0.6
~ 1.6Mpa water filler, small friction, sealed, the system can be
isolated from the atmosphere, to ensure good air tightness.
3, the opening and closing pieces of double gate with two-way flexible seal, open and close easily, sealed, good performance.
4, the stem by quenching and nitriding surface treatment, good corrosion resistance, scratch resistance and wear resistance.
5, the structure is simple, compact and reasonable, easy maintenance, long life, handsome in appearance.
6, the valve work must be fully open or fully closed position, can not do with the control valve.
Main components of DSZ44H Water Seal Gate Valve
| Shell material | Suitable media | Applicable temperature ℃ |
| Carbon steel (C) | Water, steam, oil | ≤425 |
| Chrome Nickel Stainless Steel (P) | Nitric acids | ≤200 |
| Chromium nickel molybdenum stainless steel (R) | Acetic acid | ≤200 |
| Chrome-molybdenum steel (I) | Water, steam, oil | ≤550 |
| Part Name | material | |||
| Body | WCB | ZG1Cr5Mo | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| Valve plate | WCB | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| cap | WCB / 25 | ZG1Cr5Mo | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| Valve stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| filler | Vacuum combination filler | |||
| Stem nut | Aluminum bronze | |||
| Handwheel | Malleable iron | |||
DSZ44H Water Seal Gate Valve main dimensions
| Nominal pressure | test pressure | |||
| case | Sealed (water) | Seal (gas) | Sealed (water) | |
| 1.6 | 2.4 | 1.8 | 0.6 | 1.8 |
DSZ44H Water Seal Gate Valve Nominal pressure 1.6 MPa
| DN | L1 | L2 | D | D1 | D2 | b | f | zd | Dn | A | B | H | H1 | DO | RF | BW |
| 50 | 250 | 216 | 160 | 125 | 100 | 16 | 3 | 4-18 | 49 | 57 | 66 | 398 | 458 | 250 | 28 | 24 |
| 65 | 270 | 241 | 180 | 145 | 120 | 18 | 3 | 4-18 | 66 | 73 | 83 | 438 | 514 | 250 | 40 | 35 |
| 80 | 280 | 283 | 195 | 160 | 135 | 20 | 3 | 8-18 | 78 | 89 | 96 | 456 | 539 | 300 | 55 | 50 |
| 100 | 300 | 305 | 215 | 180 | 155 | 20 | 3 | 8-18 | 96 | 108 | 117 | 514 | 614 | 300 | 75 | 66 |
| 125 | 325 | 381 | 245 | 210 | 185 | 22 | 3 | 8-18 | 121 | 133 | 144 | 600 | 750 | 350 | 110 | 96 |
| 150 | 350 | 403 | 280 | 240 | 210 | 24 | 3 | 8-23 | 146 | 159 | 172 | 680 | 825 | 350 | 150 | 133 |
| 200 | 400 | 419 | 335 | 295 | 265 | 26 | 3 | 12-23 | 202 | 219 | 222 | 800 | 1000 | 400 | 223 | 203 |
| 250 | 450 | 457 | 405 | 355 | 320 | 30 | 3 | 12-25 | 254 | 273 | 278 | 840 | 1080 | 450 | 325 | 295 |
| 300 | 500 | 502 | 460 | 410 | 375 | 30 | 4 | 12-25 | 303 | 325 | 330 | 990 | 1280 | 450 | 430 | 395 |
| 350 | 550 | 572 | 520 | 470 | 435 | 34 | 4 | 16-25 | 351 | 377 | 382 | 1135 | 1470 | 600 | 570 | 510 |
| 400 | 600 | 610 | 580 | 525 | 485 | 36 | 4 | 16-30 | 398 | 426 | 432 | 1410 | 1815 | 650 | 740 | 665 |
| 450 | 650 | 660 | 640 | 585 | 545 | 40 | 4 | 20-30 | 450 | 480 | 484 | 1475 | 1925 | 700 | 955 | 860 |
| 500 | 700 | 711 | 705 | 650 | 608 | 44 | 4 | 20-34 | 501 | 530 | 535 | 1660 | 2170 | 750 | 1195 | 1070 |
| 600 | 800 | 813 | 840 | 770 | 718 | 48 | 5 | 20-41 | 602 | 630 | 638 | 1950 | 2570 | 800 | 1455 | 1295 |
| 700 | 900 | 914 | 910 | 840 | 788 | 50 | 5 | 24-41 | 692 | 720 | 738 | 2165 | 2870 | 850 | 2110 | 1830 |
| 800 | 1000 | 965 | 1020 | 950 | 898 | 52 | 5 | 21-41 | 792 | 820 | 840 | 2595 | 3395 | 950 | 2630 | 2390 |
Reminder:
All text, data and pictures in this article are for reference only.To see more details of the DSZ44H Water Seal Gate Valve performance parameters, structural dimension parameters, pricing, etc., or to request high quality printing samples, please Contact us.
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E-mail: baigangvalve@163.com
Site: www.lakrids.cn
Add: Tinglin Industrial Park, Jinshan District, Shanghai
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