1. product features
Meet the requirements of advanced standards at home and abroad, reliable seal, excellent performance.
Valve body material variety, packing, gasket can be based on the actual conditions or user requirements reasonable selection, can be applicable to a variety of pressure, temperature and medium conditions.
Wedge type elastic gate structure, large diameter set rolling bearing, easy to open and close.
Can use a variety of piping flange standards and flange sealing surface type, to meet various engineering needs and customer requirements.
(5) developed pn1.0mpa low pressure carbon steel gate valve, can replace the iron gate valve, effectively solve the cast iron gate valve shell easy to freeze crack, gate easy to fall off, valve stem easy to rust, seal performance is not reliable and so on.
Developed pn1.0mpa low pressure stainless steel series gate valves, can be applicable to a variety of corrosive medium working conditions, reduce the cost, save materials.
2. Product use
Flange-connected steel gate valves are suitable for the nominal pressure PN1.0 ~ 16.0mpa, operating temperature -29 ~ 425 ° c (carbon steel) and -40 ~ 200 ° c (stainless steel) pipeline line, for cutting or connecting the medium in the pipeline.Through the selection of different materials, can be applied to water, steam, oil, nitric acid, acetic acid, strong oxidizing media and urea and other media, the driving mode is manual, bevel gear transmission and electric.
3. Standards and specifications
D&S | Structural length | Pressure temperature class | Connecting flange | Testing and inspection |
GB12234 | GB1221 | GB9131、 JB/T74、 HGJ67 | JB/T74~90、 GB9112~9131、 HGJ44~76 | JB/T9092 |
4.Materials and main parameters
Parts material | Body, bonnet, gate | WCB | ZG1Cr18Ni9Ti | CF8 (304) | CF3 (304L) | ZG1Cr18Ni12Mo2Ti | CF8M (316) | |
Sealing surface | Cr13 or carbide | Body (W) or carbide (Y) | ||||||
Stem and internals | 2Cr13 | 1Cr18Ni9Ti | 0Cr19Ni9 (304) | 00Cr19Ni11 (304L) | 1Cr18Ni12Mo2Ti | 0Cr17Ni12Mo2 (316) | ||
Packing | Flexible graphite | |||||||
gasket | Stainless steel wound gasket | |||||||
Applicable working condition | Applicable medium | Water, Steam, Oil etc. | Corrosive media such as nitric acid | Strongly oxidizing medium | Corrosive media such as acetic acid | |||
Suitable temperature | -29~425℃ | -40~500℃ |
5. Main external dimensions
Convex flange RF Z940H Z940Y Z940W Z940F Z941H Z941Y Z941W Z941F 16C 16P 16R 16I | 1.6MPa | ||||||||
DN | L | D | D1 | D2 | b | Z-φd | H | Denso type | |
40 | 200 | 145 | 110 | 85 | 16 | 4-φ18 | 595 | DZW10 | |
50 | 250 | 160 | 125 | 100 | 16 | 4-φ18 | 653 | DZW10 | |
65 | 265 | 180 | 145 | 120 | 18 | 4-φ18 | 665 | DZW10 | |
80 | 280 | 195 | 160 | 135 | 20 | 8-φ18 | 725 | DZW15 | |
100 | 300 | 215 | 180 | 155 | 20 | 8-φ18 | 787 | DZW20 | |
125 | 325 | 245 | 210 | 185 | 22 | 8-φ18 | 934 | DZW20 | |
150 | 350 | 280 | 240 | 210 | 24 | 8-φ23 | 955 | DZW20 | |
200 | 400 | 335 | 295 | 265 | 26 | 12-φ23 | 1105 | DZW30 | |
250 | 450 | 405 | 335 | 320 | 30 | 12-φ25 | 1343 | DZW30 | |
300 | 500 | 460 | 410 | 375 | 30 | 12-φ25 | 1516 | DZW45 | |
350 | 550 | 520 | 470 | 435 | 34 | 16-φ25 | 1678 | DZW90 | |
400 | 600 | 580 | 525 | 485 | 36 | 16-φ30 | 1849 | DZW120 | |
450 | 650 | 640 | 585 | 545 | 40 | 20-φ30 | 1937 | DZW120 | |
500 | 700 | 705 | 650 | 608 | 44 | 20-φ34 | 2234 | DZW180 | |
600 | 800 | 840 | 770 | 718 | 48 | 20-φ41 | 2432 | DZW250 | |
700 | 900 | 910 | 840 | 788 | 50 | 24-φ41 | 2489 | DZW250 | |
800 | 1000 | 1020 | 950 | 898 | 52 | 24-φ41 | 2643 | DZW350 | |
900 | 1100 | 1120 | 1050 | 998 | 54 | 28-φ41 | 2935 | DZW500 | |
1000 | 1200 | 1255 | 1170 | 1100 | 56 | 28-φ48 | 3410 | DZW500 | |
1200 | 1300 | 1485 | 1390 | 1325 | 58 | 32-φ54 | 3850 | DZW500 |