KSB BOA-SuperCompact - Bellows-Type Globe Valves to DIN;EN

5 Valve Description
25 of 60
Part No. Description Material Note
506.1 Retaining ring, long Plastic -
Galvanised steel DN 200
506.2 Retaining ring, short Plastic -
Galvanised steel DN 200
580.1 Cap Plastic, glass-fibre reinforced, impact-
resistant
-
580.2 Protective cap Plastic -
689 Insulation cap Plastic -
903 Travel stop Galvanised steel -
904.1 Locking device Galvanised steel -
904.2 Travel stop Galvanised steel -
914 Hexagon socket head cap
screw
Galvanised steel -
916 Plug Plastic -
920.1 Hexagon nut Galvanised steel -
920.2 Hexagon nut Galvanised steel -
920.3 Hexagon nut Galvanised steel -
920.4 Hexagon nut Galvanised steel -
925 Stem nut Galvanised steel -
961 Handwheel Plastic, glass-fibre reinforced, impact-
resistant
DN 15-50
Aluminium, die-cast DN 65-150
Grey cast iron DN 200
5.3.4.6 Function
The valve consists of the pressure-retaining parts, i.e. body 100 and body bonnet 161.
These parts are joined by means of hexagon head bolts 901 and sealed to
atmosphere by O-ring 412.
The functional unit consists of valve disc 350, stem 200, and handwheel 961. The
passage of stem 200 in the body is sealed by a profile seal 410.
The stem seal is maintenance-free and does not require re-tightening.
5.4 Bellows-type Globe Valves to DIN/EN
5.4.1 BOA-H
5.4.1.1 Operating data
Table17: Operating properties
Characteristic Value
EN-GJL-250 EN-GJS-400-18-LT
Nominal pressure PN 16 PN 16/25
Nominal size DN 15 - 300 DN 15 - 350
13)
13) PN 25: DN 15-150