Dervos bellow seal globe valve is designed as per EN13709 with face to face dimesnsion per EN558. The special designed bellow seal make sure zero leakage from stem.
Quick Detail
Type |
Globe Valve |
Norminal Size |
DN 65 |
NorminalPressure |
PN 40 |
Construction |
Bolted Bonnet, Rising Stem, Bellow Sealed |
ConnectionType |
RF Flange |
Operation |
Handwheel |
Design Code |
EN13709 |
Face to Face |
EN 558 |
Connection |
EN1092 |
Test & Inspection |
EN12266 |
Body Material |
Carbon Steel 1.0619 |
Bellow Material |
SS304, SS316, SS316L and etc |
ApplicableTemp |
-29℃~+420℃ |
Application |
Water, Oil, Gas |
Structure Feature
1. Standard design of double-wall bellow seal
2. Heat-dissipating bonnet design;
3. With lubricant storage device;
4, With design of circlip to fix stem nut;
5. Reasonable product structure, reliable sealing performance and good appearance;
6. The sealing surface is welded with Co-based hard alloy, which has good wear resistance, corrosion resistance, anti-friction performance and long service life;
7. Stem has nitriding treatment with good corrosion resistance and anti-friction performance;
8. With position indicator for stem movement;