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Hard Seal Gate Valve

Size range:DN50~1200
Pressure:PN6~250
Body material:ductile cast iron, WCB, stainless steel, etc.
Operation: manual ,worm gear ,electric, etc.
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Overview

Hard seal gate valve is a valve product with more stable sealing performance, high-temperature resistance, corrosion resistance, and wider adaptability. The sealing structure of the hard seal gate valve uses friction between metal materials to achieve the sealing effect. The excellent wear resistance and corrosion resistance of this sealing method can adapt to a variety of complex media occasions, and can also handle applications with high tightness requirements.

Features

  1. 1.High temperature and pressure resistance. Metal(hard) seal gate valves can be operated in media temperatures up to 400℃ and pressures up to 2500-5000psi.
  2. 2.High sealing. Metal seal gate valve adopts a metal-to-metal friction seal for a more stable sealing effect, with better sealing and longer service life.
  3. 3.Corrosion resistance. Metal seal gate valve sealing materials usually use stainless steel and other corrosion-resistant materials, able to operate in harsh media such as strong acids, strong alkalis, and high concentrations of salt solutions.
  4. 4.Adaptable. Metal seal gate valves use advanced sealing mechanisms that can adapt to high-viscosity media, media containing particles, cellulose, residues, and other media to prevent blockage.

Technical Specifications

DN L D D1 D2 b f Z-d H H1 Do
PN16
15 130 95 65 46 14 2 4-14 220 240 120
20 150 105 75 56 16 2 4-14 255 284 140
25 160 115 85 65 16 2 4-14 275 303 160
32 180 140 100 76 18 2 4-18 280 321 180
40 200 150 110 84 18 2 4-18 300 352 200
50 250 165 125 99 20 2 4-18 358 438 240
65 270 185 145 118 20 2 4-18 375 450 240
80 280 200 160 132 20 2 8-18 438 528 280
100 300 220 180 156 22 2 8-18 502 620 320
125 325 250 210 184 22 2 8-18 612 753 360
150 350 285 240 211 24 2 8-23 676 847 360
200 400 340 295 266 24 2 12-22 820 1039 400
250 450 405 355 319 26 2 12-26 969 1245 450
300 500 460 410 370 28 2 12-26 1142 1472 560
350 550 520 470 429 30 2 16-26 1280 1450 640
400 600 580 525 480 32 2 16-30 1452 1887 640
450 650 640 585 548 40 2 20-30 1541 2011 720
500 700 715 650 609 44 2 20-33 1676 2181 720
600 800 840 770 720 48 2 20-36 1874 2346 800

Note: Technical specifications may change without notice due to ongoing technological advancements.

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