Highlight: DIN Stainless Steel Bellows Globe Valve
Product Introduction:
The WJ41H-16P gate valve adopts metal bellows sealing technology
with a double-sealing design. The stainless steel
bellows are welded to the valve stem at the lower end to prevent
process fluids from eroding the stem. The other end is
positioned between the valve body and bonnet to form a static seal.
If the bellows fail, the stem packing will also prevent
leakage, ensuring stable operational performance and avoiding stem
vibration caused by plug vibration. This valve is suitable
for cutting off or connecting regulated pipeline media,
particularly for pipelines carrying steam, flammable, explosive,
heat-conducting oil, high-purity, toxic, and other media. It
features a vertical plate structure, flange connection,
unidirectional
flow, and manual operation.
Product Technical Parameters:
Type Number | WZ41H-16p |
Nominal Pressure PN(MPa) | 1.0 - 4.0 |
Nominal Diameter DN(mm) | 15～400 |
Test pressure (MPa) | Strength (water) | 1.5 times of pressure nominal |
Sealing (water) | 1.1 times of pressure nominal |
Sealing (Air) | 0.6 times of pressure nominal |
Sealing for bellows (water) | 1.5 times of pressure nominal |
Raw material | WCB, CF8, CF8M |
Medium suitable: | Water, steam, oil mediums |
Working temperature | 200≤℃ |
Connection type | Flange |
Operational method | Hand-wheel, bevel gear, pneumatic and electric actuators |
Product Functions:
1. The product has a reasonable structure, reliable sealing
performance, and a beautiful appearance.
2. The sealing surface is surfacing welded with cobalt-based hard
alloy, featuring wear resistance, corrosion resistance, good
anti-friction performance, and a long service life.
3. The valve stem undergoes quenching and tempering as well as
surface nitriding treatment, providing good corrosion
resistance and anti-friction performance.
4. The right-angle German-standard bellows globe valve adopts
double-sealing, ensuring more reliable performance.
5. The lifting position indication of the valve stem is more
intuitive.
6. The material of parts, as well as the specification dimensions
of flanges and buttwelds, can be reasonably selected
according to actual working conditions or user requirements to meet
various engineering needs.
