GENERAL
INFORMATION
HOW
TO ORDER For ordering Td fittings please supply
the following data:
| 1 - |
Price List
Number |
| 2 - |
Type |
| 3 - |
Finish |
| 4 - |
Fitting Size |
| 5 - |
Quantity |
| 6 - |
In Plastic
Bags |
SYMBOLS In order
to simplify the tables for each fitting type, the
following symbols were established:
 |
Dimension |
Identifies
the nominal dimensions of each fitting |
|
BK |
Fittings with
black (oiled) finish |
|
GAL |
Fittings with
hot dipped galvanized finish |
|
Code |
TD fittings
reference code |
|
Index |
Unit gross
fee |
|
SP |
Number of pieces
per standard pack |
|
CP |
Number of pieces
per carton |
|
g |
Unit weight
(in grammes) |
STANDARD AND IDENTIFICATION
|
Standard for
production and use EN 10242 : 1994 |
|
Identification:
In accordance with the material selected for the
production and the type of thread the Td fittings
are identified as class "A" which means
that: |
| 1 - |
They are made
of black heart malleable cast iron of high quality
B 350 - 10. |
| 2
- |
The
threads are cut according to ISO 7/1, i.e. Parallel
internal thread (Rp) and tapered external thread
(R). |
APPLICATION All
the Td fittings are adequate for the supplying of
water, gas, steam and compressed air at pressure of
up to 25 bar and at 120 C° temperature, or under 20
bar pressure at temperatures in the 120 C° to 300
C° range.
DIMENSIONS All
the Td fittings are manufactured to the specifications
of standard EN 10242.
INSPECTION All
the Td fittings are inspected for conformity with
the specifications of standard EN 10242.
MARKING All the
Td fittings, when possible, are marked with "Td"
brand and/or with the nominal size Identification.
GALVANIZATION The
Td fittings can be delivered - as requested by the
purchaser - in black or galvanized finish. As prescribed
by the standard EN 10242, the mass of zinc coating
shall be not less than 500 gr/m², which corresponds
to a medium layer thickness of 70 µm. Both types of
finish are covered with an anti rust varnish. The
surfaces of the Td fittings are free from aromatic
hydrocarbons.
LEAK TEST Applying
the standard EN 10242 each individual Td fitting is
subjected to a pressure test with a min. Hydrostatic
pressure of 20 bar, which is equivalent to a pneumatic
pressure of min. 5 bar.
Correlation Td Catalogue
Number-EN Symbol
| Td |
EN |
| 1 |
G4 |
| 2 |
G1 |
| 85 |
- |
| 87 |
- |
| 90 |
A1 |
| 90R |
A1 |
| 92 |
A4 |
| 95 |
UA1 |
| 96 |
UA11 |
| 97 |
UA2 |
| 98 |
UA12 |
| 120 |
A1/45° |
| 121 |
A4/45° |
| 130 |
B1 |
| 130R |
B1 |
| 131 |
E1 |
| 180 |
C1 |
| 180R |
C1 |
| |
|
|
|
| Td |
EN |
| 240 |
M2 |
| 241 |
N4 |
| 245 |
N8 |
| 270 |
M2 |
| 271 |
M2
R-L |
| 280 |
N8 |
| 290 |
T9 |
| 291 |
T8 |
| 300 |
T1 |
| 310 |
P4 |
| 330 |
U1 |
| 331 |
U2 |
| 340 |
U11 |
| 341 |
U12 |
| 529a |
M4 |
| 370 |
- |
| 371 |
- |
| 372 |
- |
| 374 |
- |
|
|
Correlation of the inch and
mm sizes
| Fitting
Size |
3/8 |
1/2 |
3/4 |
1 |
1
1/4 |
1
1/2 |
2 |
2
1/2 |
3 |
4 |
| Nominal
Size DN |
10 |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
| Old
French Denomination |
12-17 |
15-21 |
20-27 |
26-34 |
33-42 |
40-49 |
50-60 |
66-76 |
80-90 |
102-114 |
|
