
Fittings
Siemens PA 20 · 1999
1/35
Technical data
Fitting
Flow fitting
C74451-A1789-A2
Flow fitting
C74451-A1789-A1
Flow fitting
C74451-A1789-A21
Flow fitting
C74451-A1789-A22
Flow fitting
C74451-A1789-A3
Screwed sample
connection
3
/
8
Ć18 NPT R
3
/
4
3
/
8
Ć18 NPT
Material Stainless steel (1.4404) PP
1)
Permissible oper.
temperature T
B
160 _C
90 ºC
Permissible oper.
pressure P
B
at T
B
16 bar
1.5 bar at 20 ºC
0.2 bar at 90 ºC
Weight Approx. 2 kg Approx. 1.5 kg
Dimensions See Fig. 1/21
Flow Recommended 0.1 to 0.5 l/min. (max. 10 l/min)
Fitting
Flow fitting
M54145-A92
Flow fitting
M54145-A102
Flow fitting
M54145-A93
Flow fitting
7MA8500-8AB
Screwed sample
connection
R
3
/
4
FourĆhole flange DN 25
Material PP
1
) PVDF
3
) PTFE/GF25
2
)
Permissible oper.
temperature T
B
90 _C 130 _C 120 _C
Permissible oper.
pressure P
B
at T
B
6 bar at 20 _C
0.2 bar at 90
_C
6 bar at 20 _C
1 bar at 130
_C
4 bar at 120 ºC
6 bar at 20 ºC
Weight Approx. 0.25 kg Approx. 2 kg Approx. 0.3 kg Approx. 2 kg
Dimensions See Fig. 1/21 See Fig. 1/25
Flow Recommended 0.1 to 0.5 l/min. (max. 10 l/min)
Fitting
Flow fitting
M54445-A20
Flow fitting
M54445-A21
Screw connector for
welding on
M54445-A25
Screw connector
7MA8500-8BR
Screwed sample
connection
Rd 78 x
1
/
6
For welding on
Material Stainless steel (1.4301) PP
1)
Permissible oper.
temperature T
B
160 _C 90 _C
Permissible oper.
pressure P
B
at T
B
16 bar
6 bar at 20 _C
0.2 bar at 90
_C
Weight Approx. 1 kg Approx. 1 kg Approx. 0.25 kg Approx. 0.1 kg
Dimensions See Fig. 1/21
Flow Recommended 0.1 to 0.5 l/min. (max. 10 l/min)
Fitting
VARIVENT
flow fitting
7MA8500-8AD
VARIVENT
connector for welding on
7MA8500-8AG
Immersion fitting
C74451-A1789-A10, -A12,
-A14, -A16
Immersion fitting
7MA8500-8FU, -8FV, -8FW
Screwed sample
connection
DN 50 for welding on
(DN 40 to DN 125 possible)
For welding on Ć Ć
Material Stainless steel (1.4404) PVC
2)
PP
1
)
Permissible oper.
temperature T
B
135 _C with EPDM gaskets
4
)
200
_C with Viton gaskets
5
)
60 _C 90 _C
Permissible oper.
pressure P
B
at T
B
25 bar 0.2 bar 0.5 bar
Weight Approx. 0.85 kg Approx. 2 kg Approx. 1.8...3 kg Approx. 2 kg
Dimensions See Fig. 1/25 See Fig. 1/23
Flow Recommended 0.1 to 0.5 l/min. (max. 10 l/min) Ć
1
) PP: polypropylene
2
) PTFE/GF25: polytetrafluor ethylene with 25 % glassĆfiber
3
) PVDF: polyvinylidene fluoride
4
) EPDM: ethylene propylene caoutchouc
5
) Viton: fluor caoutchouc
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