Executive standard for welded metal hard seal butterfly valve
| Design and manufacture | Welding size | Structural length | Test and inspection |
| GB/T12238 JB/T8527 | GB/T12224 | GB/T12221 | GB/T13927¡¢GB/T26480 |
Main technical parameters of welded metal hard seal butterfly valve
| Nominal diameter | DN(mm) | 50~700 | ||||
| Nominal pressure | PN(MPa) | 0.6 | 1.0 | 1.6 | 2.5 | 4.0 |
| Test pressure | strength test | 0.9 | 1.5 | 2.4 | 3.75 | 6.0 |
| Sealing test | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 | |
| Airtight seal test | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
| Applicable media | Corrosivity of water, steam, oil, acid, etc | |||||
| Applicable temperature | Applicable temperature of carbon steel: – 29 ¡æ ~ 425 ¡æ, applicable temperature of stainless steel: – 40 ¡æ ~ 600 ¡æ | |||||
Material of main parts of welded metal hard seal butterfly valve
| Part name | Material Science |
| valve body | Cast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel |
| Disc | Cast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel |
| valve seat | Stainless steel, hardfacing Stellite and other hard alloys |
| seal ring | Stainless steel and high temperature resistant asbestos board are combined into multi-layer |
| Stem | 20cr13, 1Cr13 stainless steel, chromium molybdenum steel, special materials |
| axle sleeve | Austenitic stainless steel, 304 nitriding |
| filler | Flexible graphite, PTFE |
| Packing gland | Cast steel, stainless steel |
| Bracket | Cast steel, stainless steel |
Design drawing of this product
Main connection dimensions PN0.6/1.0MPa
| Nominal pressure PN0.6MPa | Nominal pressure PN1.0MPa | |||||||||||||||
| DN | Dimensions |
WT (kg) |
Dimensions | WT(kg) | ||||||||||||
| mm | L | D | d | H | H1 | A | B | L | D | d | H | H1 | A | B | ||
| 600 | 390 | 636 | 602 | 499 | 1280 | 570 | 660 | 450 | 390 | 636 | 602 | 499 | 1280 | 570 | 660 | 465 |
| 700 | 430 | 726 | 692 | 566 | 1480 | 750 | 550 | 660 | 430 | 726 | 692 | 566 | 1480 | 750 | 550 | 680 |
| 800 | 470 | 826 | 792 | 632 | 1608 | 750 | 550 | 780 | 470 | 826 | 792 | 632 | 1608 | 750 | 550 | 810 |
| 900 | 510 | 926 | 892 | 693 | 1857 | 750 | 550 | 820 | 510 | 926 | 892 | 693 | 1857 | 750 | 550 | 860 |
| 1000 | 550 | 1028 | 992 | 757 | 2038 | 900 | 750 | 1460 | 550 | 1028 | 992 | 757 | 2038 | 900 | 750 | 1625 |
| 1200 | 630 | 1228 | 1192 | 851 | 2237 | 1000 | 925 | 1590 | 630 | 1228 | 1192 | 851 | 2237 | 1000 | 925 | 1770 |
| 1400 | 710 | 1428 | 1392 | 876 | 2411 | 1000 | 925 | 2185 | 710 | 1428 | 1392 | 876 | 2411 | 1000 | 925 | 2425 |
| 1600 | 790 | 1628 | 1592 | 1095 | 2756 | 1000 | 925 | 3210 | 790 | 1628 | 1592 | 1095 | 2756 | 1000 | 925 | 3560 |
| 1800 | 870 | 1828 | 1792 | 1214 | 3093 | 1100 | 980 | 4090 | 870 | 1828 | 1792 | 1214 | 3093 | 1100 | 980 | 4545 |
| 2000 | 950 | 2028 | 1992 | 1332 | 3355 | 1100 | 980 | 5610 | 950 | 2028 | 1992 | 1332 | 3355 | 1100 | 980 | 6230 |
Main dimensions of welded metal hard seal butterfly valve PN1.6MPa
Nominal pressure
Product use
Welded metal hard seal butterfly valve is widely used in heat, petroleum, chemical, electric power, metallurgy, food, medicine, light textile, papermaking and other industries. It can be installed in industrial pipe network with temperature ¡Ü 425 ¡æ and medium of gas, air, steam, water, sea water, oil products, etc. for regulating flow and cutting off medium.
Product features of welded metal hard seal butterfly valve
1. Compact structure, small size, light weight, flexible operation, easy to use;
2. The three-dimensional eccentric multi-layer hard sealing structure is adopted, and its sealing performance is reliable and reaches zero leakage;
3. The valve has no flange, so it is convenient and beautiful to bind the pipe;
4. It has the characteristics of high temperature, high pressure, corrosion resistance and wear resistance.
Like valve (Tianjin) Co., Ltd., a valve manufacturer located in Tianjin, has a complete production process, and has obtained many certificates and patents, such as ISO9001, ISO14001, OHSAS18001, TS, API, CE, CCCF, etc., to provide protection for global customers.
Want a quick and easy way to get quotes? Want to buy safe and high quality products? Click below to learn more
