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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 details

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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