Bellows Seal Globe Valves
Product Description KOSEN Bellows Seal Globe Valves introduced advanced foreign technology, using double bellows design, welded to the valve stem to maintain stable operating performance, avoid the valve vibration caused by valve plug vibration. At high temperature, the stem does not touch the medium...
The bellows seal globe valves is constructed with bellows inside. The lower end of stainless steel bellows is welded to the stem to prevent the process fluid from eroding the stem. The other end is placed between the valve body and the valve cover to form a static seal. Dual seal design can avoid leakage if the bellows fail to fill the stem, and the bellows are welded to the stem to maintain stable operation performance and avoid vibration of the stem caused by valve plug vibration. Most suitable for steam, flammable, explosive, heat conducting oil, high purity, toxic and other media on the pipeline.
Normal Size Range: DN15-DN400
Normal Pressure Rating: PN10~PN40
Temperature Range: -29~425Degree C
Design and Manufacture: DIN3356
Inspection and Test: ISO 5208,EN12266
Flanged ends dimension: DIN2543 ,DIN2544,DIN2545
Butt-welded ends dimension: EN12627
Face to face and end to end: DIN3202,EN558-1,ISO5752
Pressure-temperature ratings: DIN2401
Test & Inspection: DIN3230