Flanged Ball Valves KOK A full bore, bi-directional valve mountable in any position. The ball valve housing is made of steel, two screwed-in connector pipes and two loose flanges. The stem has a blow-out protection and is mounted together with the sealing set on the inside of the body. The ball “floats� between two seals, set in the connector pipes. In a standard version, flanges and valve face are made acc. to Table 1 (p.5)
17
Standard accessories: wrench Optional accessories: mounting elements (flanges, seals, bolts, nuts) KOK mm PN
L
DN
40
H
R
Dz
g
Do
d
pcs.
weight
n
kg
130
90
125
95
18
65
14
4
2,5
100
130
90
125
105
22
75
14
4
3,4
40
150
112
160
105
20
75
14
4
4,1
100
150
112
160
130
24
90
18
4
5,9
40
160
115
160
115
20
85
14
4
5,4
160
115
160
140
26
100
18
4
7,8
15
20
25
100
MATERIAL SPECIFICATION- KOK BALL VALVE
+
+
+
+
Graphite
Ethylenepropylene rubber
Silicone rubber
Nitrile rubber
High-alloy steel
Other seals
Poliacetal
Polytetrafluoroetylene + filler
Carbon steels +
Polytetrafluoroethylene
Ball seals High-alloy steel
Stainless cast steel +
Brass
Stem Stainless steel
Alloy steel (with Cr5Ni coating)
High pressure cast steel
Ball High pressure steel
Brass
Body