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APV_DKR2 ATEX_UK-0_022018.indd
UK
Double Seat Ball Valve DELTA DKR2
ATEX Design
Instruction Manual: UK-0
APV
9. Technical Data
DN
Inch
25
1"
40
1,5"
50
2"
65
2,5"
80
3"
100
4"
9.3.
max. tightening torque in Nm
(M)
10
15
22
25
40
65
9.4.
operating leakage at about 5 bar in L
(opening and closing process)
(Qs)
0,7
1,2
1,4
2,0
4,0
4,2
9.5.
operating leakage at about 5 bar in L
with operating leakage reduction
(Qs)
0,4
0,7
0,8
1,2
2,4
2,5
9.6.
pneum. air consumption in 6 bar NL
(V)
1,8
1,8
1,8
2,8
5,5
5,5
10. Materials
- housing, valve ball, shafts
1.4404
(DIN EN 10088)
- ball seal
PTFE
-
flange seal
standard:
EPDM
option:
HNBR, FPM, VM
Q
- housing seal
standard:
EPDM
option:
HNBR, FPM
- o-rings
FPM, NBR
- spring - potential equalization
1.4310
(DIN EN 10088)
Actuator
- yoke, actuator
1.4301
(DIN EN 10088)
- coupling
1.4301 / 1.4308
or
1.4057 / 1.4059
(DIN EN 10088)
- indicator
PE-solid
- piston
Polyacatal POM
- spindle bearing
Polyamide PA 12
- air connection
Polyamide PA 6.6