Spirax Sarco TD42 - General Product Information; Product Overview and Variants

IM-P068-24 ST Issue 5 5
2. General product information
2.1 General description
The TD42 range are maintainable thermodynamic steam traps which are suitable for
pressures up to 42 bar g, complete with integral strainer and screwed body connections.
The TD42L and TD42LC are specifically designed for lower capacity applications and
therefore, ideal for tracing and mains drainage applications. Note: '
L' and 'LC' denotes
lower capacity.
The TD42 and TD42H are specifically designed for higher load applications.
The TD42A, TD42HA, TD42LA and TD42LCA are designed for applications where the
release of air is a concern. It is supplied with an anti-air-binding disc. Note: the letter 'A' in
the nomenclature denotes that an anti-air-binding disc is used in this product.
The TD42L
, TD42LA, TD42H and TD42HA have electroless nickel preparation (ENP) body
surfaces which is both energy saving and oxidation resistant.
The TD42
, TD42A, TD42LC and TD42LCA have black body surfaces.
Please note that both the TD42S2, and TD42S3 are socket weld traps and are covered by
separate IMI's. See IM-P068-37 for the TD42S2, and IM-P068-38 for the TD42S3.
Groove indentifies
TD42A, TD42LA, TD42LCA
and TD42HA versions
which have an
anti-air-binding disc
TD42 shown
Groove
anti-air-binding disc
Fig. 1 TD42 and variants
Optional extras
Insulating cover: to prevent the trap being unduly influenced by excessive heat loss such
as when subjected to low outside temperatures, wind, rain etc.
Integral blowdown valve: A BDV1 or BDV2 can be fitted to the strainer cap, alternatively
the strainer cap can be drilled, tapped and plugged
" BSP or NPT.
Standards
These products fully comply with the requirements of the European Pressure Equipment
Directive 97/ 23 / EC.
Certification
This product is available with a manufactures Typical Test Report. Note: All certification /
inspection requirements must be stated at the time of order placement.
Note:
For additional information see the following Technical Information Sheets: TI-P068-22,
TI-P151-04 and TI-S01-03.