Compressed air products
Isolation valves, drain traps and ancillaries
Dimensions / weights (approximate) in mm and kg
Size
DN40
DN50
Weight
33
43
A
B C D
E F G
230
130
116 326
200
200 242
230
141
123 332
200
225 248
Flange bolt hole tappings
G
Size
DN40
DN50
ASME 150
1⁄2" - 13 UNC - 2B
" - 11 UNC - 2B
ASME 300
3⁄4" - 10 UNC - 2B
" - 11 UNC - 2B
JIS/KS 20K
M16 x 2 - 6H
M16 x 2 - 6H
B
Safety information, installation and maintenance
For full details, see the Installation and Maintenance Instructions
(IM-P148-37) supplied with the product.
Installation note:
The trap must be fitted in the horizontal plane below what it is draining
with the direction of flow as indicated on the body so that the float
mechanism is free to rise and fall in a vertical plane.
One of the advantages of the float trap for draining air and gas
systems is that no bleed is required for satisfactory operation.
However, because the trap has no bleed a seperate balance line is
needed to prevent it becoming air or gas locked.
It should be noted that the balance line is piped back to the
upstream side.
A balance line is essential for the correct operation of this
product.
It is recommended that a non-return valve is fitted when discharging
condensate into return lines where backpressure is experienced. It
is also recommended that a diffuser is fitted when discharging to
atmosphere.
For convenience of maintenance it is recommended that a union is
fitted in the balance line near to the trap cover and consideration
should be given to fitting isolation valves upstream and downstream
of the trap.
The CA46S must not be insulated.
Disposal
The product is recyclable. No ecological hazard is anticipated with
the disposal of this product providing due care is taken.
How to order
Example: 1 off Spirax Sarco DN50 CA46S-32 air and gas trap flanged
to EN 1092 PN40 having an austenitic stainless steel body and cover.
Spare parts
C
F
E
A
The spare parts available are shown in solid outline. Parts drawn
in broken line are not supplied as spares.
Available spares
Main valve assembly with float CA46S
Complete set of gaskets (packet of 3 sets)
How to order spares
5, 6, 7, 8 + 9, 14, 15, 16
3, 6
D
Always order spares by using the description given in the column
headed 'Available spares' and state the size and type of trap.
Example: 1 - Main valve assembly with float for a Spirax Sarco DN50
CA46S-32 air and gas trap.
*19
3
Dowel *2
*2
* Note: Items 2 and 19 are not an available spare.
8
9 715145166
Main valve assembly with float
Recommended tightening torques
or
mm
24 A/F
M16 x 85
24 A/F
M16 x 85
17 A/F
M12 x 8
Cheesehead
M5 x 20
10 A/F
M6 x 20
13 A/F
M8 x 20
Item
2
5
7
19
Size
DN40
DN50
DN40
DN50
N m
60 - 66
80 - 88
50 - 55
2.5 - 2.8
10 - 12
20 - 24
TI-P148-07 ST Issue 8
CA46 Austenitic Stainless Steel Air and Gas Trap DN40 and DN50
Page 3 of 3
9.5.40
