Technical Info

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 grams)

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.

GALVANISATION:
The Td fittings can be delivered - as requested by the purchaser - in black or galvanised 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

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 (in)

3/8

1/2

3/4

1

1 1/4

1 1/2

2

2 1/2

3

4

Nominal Size DN (mm)

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