Our firm since its inception, normally regards item top quality as company life, constantly make improvements to generation technology, improve product excellent and repeatedly strengthen organization total good quality management, in strict accordance with the national standard ISO 9001:2000 for Factory Directly supply PTFE Lining Flange Steel Globe Valve, Welcome all clients of dwelling and abroad to go to our corporation, to forge a fantastic long term by our cooperation.
Our firm since its inception, normally regards item top quality as company life, constantly make improvements to generation technology, improve product excellent and repeatedly strengthen organization total good quality management, in strict accordance with the national standard ISO 9001:2000 for China PTFE PFA Lining and PTFE PFA Lined, Our stock have valued 8 million dollar , you can find the competitive parts within short delivery time. Our company is not only your partner in business, but also our company is your assistant in the coming corporation.
Features of dw41jh bellows stop valve
1. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance;
2. The sealing surface overlaid with Co based cemented carbide has good wear resistance, corrosion resistance, friction resistance and long service life;
3. The valve stem has good anti-corrosion and anti friction properties by quenching and tempering and surface nitriding treatment;
4. Double seal, more reliable performance;
5. Valve stem lifting position indication, more intuitive;
6. Parts material and flange, butt welding end size can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.
Main performance specifications
| Nominal pressure（MPa） | Shell test pressure（MPa） | Sealing test pressure（MPa） | Applicable temperature（℃） | Media used |
| 1.6 | 2.4 | 1.76 | ≤350℃ | Water, steam, oil, etc |
| 2.5 | 3.75 | 2.75 | ||
| 4.0 | 6.0 | 4.4 | ||
| 6.4 | 9.6 | 7.04 |
Materials of main parts of dwj41h German standard BELLOWS GLOBE VALVE
| Serial number | name | texture of material |
| 1 | valve body | GS-C25 1.73631.4308、1.4408、1.4306、1.4301 |
| 2 | Valve disc | ASTM A182-Gr.F6a ASTM A-182-F22ASTM A182-F304、F316、F321、F304L、F316L |
| 3 | Pivot pin | ASTM A182-Gr.F6a ASTM A-182-F22ASTM A182-F304、F316、F321、F304L、F316L |
| 4 | Bellows assembly | 1Cr18Ni9Ti、304、316 |
| 5 | Stem | ASTM A182-Gr.F6a ASTM A-182-F22ASTM A182-F304、F316、F321、F304L、F316L |
| 6 | Valve cover | GS-C25 1.73631.4308、1.4408、1.4306、1.4301 |
| 7 | filler | Flexible graphite、PTFE |
| 8 | Packing gland | GS-C25 1.73631.4308、1.4408、1.4306、1.4301 |
| 9 | Positioning film | 25、45、304、316 |
| 10 | Stem nut | copper alloy ZQA19-4 |
| 11 | handwheel | WCB、QT400-18 |
| 12 | Stud bolt | ASTM A193-B7、A193-B8、A193-B8M |
| 13 | Hexagon nut | ASTM A194-2H、A194-8、A194-8M |
| 14 | shim | Flexible graphite + stainless steel、PTFE |
Main connection dimensions
| model | model | ||||||||||||||
| Pressure rating | PN16 | ||||||||||||||
| caliber | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
| L | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | 980 |
| H | 195 | 200 | 220 | 225 | 235 | 250 | 260 | 265 | 370 | 400 | 515 | 550 | 600 | 630 | 680 |
| W | 120 | 140 | 140 | 160 | 160 | 180 | 200 | 220 | 250 | 300 | 350 | 400 | 450 | 500 | 500 |
| weight（kg） | 4 | 4.5 | 5 | 7 | 9 | 12.5 | 18 | 23 | 41 | 54 | 90 | 160 | 260 | 410 | 610 |
| model | DWJ41-25 | ||||||||||||||
| Pressure rating | PN25 | ||||||||||||||
| caliber | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
| L | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | 980 |
| H | 195 | 200 | 220 | 225 | 235 | 250 | 260 | 265 | 370 | 400 | 515 | 550 | 600 | 630 | 680 |
| W | 120 | 120 | 140 | 160 | 160 | 180 | 200 | 220 | 250 | 300 | 350 | 400 | 450 | 500 | 500 |
| weight（kg） | 4 | 4.5 | 5 | 7.5 | 9.5 | 13 | 19 | 24 | 43 | 57 | 95 | 168 | 300 | 510 | 680 |
| model | DWJ41-40 | ||||||||||||||
| Pressure rating | PN40 | ||||||||||||||
| caliber | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
| L | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | 980 |
| H | 195 | 200 | 220 | 225 | 235 | 250 | 260 | 265 | 370 | 400 | 515 | 550 | 600 | 630 | 680 |
| W | 120 | 120 | 140 | 160 | 160 | 180 | 200 | 220 | 250 | 300 | 350 | 400 | 450 | 500 | 500 |
| weight（kg） | 4 | 4.5 | 5 | 8 | 10 | 13.5 | 20 | 25 | 45 | 60 | 98 | 171 | 340 | 580 | 780 |
