Applicable medium vapor system, natural gas, toxic waste gas purification, vacuum device, hot oil system, heating equipment, freezing system, ammonia, hot water, power station and other
applicable temperature -20 — 350℃
adopt standard Manufacturing standard: DIN3356 Inspection test standard: DIN3230 Structure length standard: DIN3202 butt joint standard: DIN3239
flange standard: DIN2543-2545
|
Scope of application |
Applicable media | Steam system, natural gas, toxic waste gas purification,
vacuum device, hot oil system, heating equipment, freezing system, ammonia, hot water, power station, etc |
||||||||
| Applicable temperature | – 20-350 ℃ | |||||||||
| Adoption
of standards |
Manufacturing standard: DIN3356 | Inspection and test standard: DIN3230 | ||||||||
| Structure length standard: DIN3202 | Butt joint standard: DIN3239 | |||||||||
| Flange standard: DIN2543-2545 | ||||||||||
|
Material quality |
Valve body | Valve cover | Valve stem | Valve disc | Tight sealing surface | Filler | ||||
| WCB | WCB | WCB | 13Gr | 2Gr | 2Gr | Flexible graphite | ||||
| 304 | CF8 | CF8 | 304 | 304 | 304 | Flexible graphite | ||||
| 316 | CF8M | CF8M | 316 | 316 | 316 | Flexible graphite | ||||
| 304L | CF3 | CF3 | 316 | 304L | 304L | Flexible graphite | ||||
| 316L | CF3 | CF3 | 316 | 316L | 316L | Flexible graphite | ||||
|
Feature point |
Bellows seal the stem |
Double and
triple bellows |
Double seal |
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| No lifting handwheel | Position indication | Easy maintenance | ||||||||
Welding bellows stop valve PN1.6-6.4MPa size data
| Nominal diameter
DN (mm) |
Dimensions (mm) | |||||||
|
L |
H |
D |
D0 |
D1 |
L1 |
a |
Handwheel |
|
| 10 | 130 | 220 | 36 | 10 | 18.4 | 10 | 37.30 | 120 |
| 15 | 130 | 245 | 36 | 15 | 22.5 | 10 | 37.30 | 140 |
| 20 | 150 | 245 | 44 | 20 | 28.5 | 11 | 37.30 | 160 |
| 25 | 160 | 265 | 48 | 25 | 34.5 | 12 | 37.30 | 180 |
| 32 | 180 | 270 | 48 | 33 | – | – | 37.30 | 200 |
| 40 | 200 | 285 | 55 | 39 | – | – | 37.30 | 240 |
| 50 | 230 | 320 | 64 | 48 | – | – | 37.30 | 300 |
| 65 | 290 | 365 | 82 | 65 | – | – | 37.30 | 320 |
| 80 | 310 | 410 | 95 | 76 | – | – | 37.30 | 360 |
| 100 | 350 | 430 | 117 | 98 | – | – | 37.30 | 380 |
| 125 | 400 | 470 | 143 | 123 | – | – | 37.30 | 400 |
| 150 | 480 | 500 | 167 | 148 | – | – | 37.30 | 450 |
| 200 | 600 | 533 | 217 | 198 | – | – | 37.30 | 500 |
Advantages
•
1, The bellows globe valve, its key component metal bellows, the lower end and the valve stem assembly using automatic roll welding, the upper end and the connecting plate automatic roll welding welding, forming a metal barrier between the fluid
medium and the atmosphere, to ensure that the valve stem zero leakage.
2, The valve disc adopts parallel design, the sealing effect is better, the service life is long.
3, Double durable bellows seal design (bellows + packing), to ensure zero leakage of the valve stem. No fluid loss, improve the safety of factory equipment. And meet the international sealing standards.
4, The valve cover comes with grease joint, which can directly lubricate the valve stem, nut and shaft sleeve, unlike the traditional lubricating thread only.
5,The valve stem tempering and surface nitriding treatment, has good anti-corrosion and anti-friction performance; Valve stem lifting position indication, more intuitive. Sealing surface surfacing Co based cemented carbide, wear resistance, corrosion
resistance, good anti-friction performance, long service life.
| Nominal Pressure (mpa) | Shell test
pressure (mpa) |
Seal test pressure (mpa) | Applicable
temperature (。C) |
| 1.6 | 2.4 | 1.76 |
350 ℃ or less |
| 2.5 | 3.75 | 2.75 | |
| 4.0 | 6.0 | 4.4 | |
| 6.4 | 9.6 | 7.04 |
