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
|
-29β~+420β
|
|
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;
