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6189750/1
IM-P012-02
CMGT Issue 1
TD42SLT
Thermodynamic Steam Trap
Installation and Maintenance Instructions
1. Safety information
2. General product information
3. Installation
4. Commissioning
5. Operation
6. Maintenance
7. Spare parts
TD42SLT Thermodynamic Steam Trap
© Copyright 2025
1
IM-P012-02 CMGT Issue 1
Printed in UK
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Table of Contents
Related Manuals for Spirax Sarco TD42SLT
Summary of Contents for Spirax Sarco TD42SLT
- Page 1 TD42SLT Thermodynamic Steam Trap Installation and Maintenance Instructions 1. Safety information 2. General product information 3. Installation 4. Commissioning 5. Operation 6. Maintenance 7. Spare parts TD42SLT Thermodynamic Steam Trap © Copyright 2025 IM-P012-02 CMGT Issue 1 Printed in UK...
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Page 2: Safety Information
Group 2 of the above mentioned Pressure Equipment Directive. The products’ use on other fluids may be possible but, if this is contemplated, Spirax Sarco should be contacted to confirm the suitability of the product for the application being considered. -
Page 3: Protective Clothing
1.9 Tools and consumables Before starting work ensure that you have suitable tools and/or consumables available. Use only genuine Spirax Sarco replacement parts. 1.10 Protective clothing Consider whether you and/or others in the vicinity require any protective clothing to protect against the hazards of, for example, chemicals, high/low temperature, radiation, noise, falling objects, and dangers to eyes and face. -
Page 4: Residual Hazards
Customers and stockists are reminded that under EC Health, Safety and Environment Law, when returning products to Spirax Sarco they must provide information on any hazards and the precautions to be taken due to contamination residues or mechanical damage which may present a health, safety or environmental risk. -
Page 5: General Product Information
2. General product information 2.1 General description The TD42SLT is a thermodynamic steam trap with forged steel body and socket weld ends. Optional extras To prevent the trap being unduly influenced by excessive heat loss such as Insulating cover when subjected to low outside temperatures, wind, rain etc. - Page 6 (752 °F @ 493 psi g) Minimum operating temperature 0 °C (32 °F) Note: For lower operating temperatures consult Spirax Sarco. Maximum differentail pressure 42 bar (609 psi) PMOB Maximum operating backpressure should not exceed 80% of the upstream pressure Minimum operating differential pressure for satisfactory operation 0.25 bar...
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Page 7: Installation
5. Operation The thermodynamic steam trap will discharge condensate with a blast type action at a few degrees below steam saturation temperature, due care must be given to the site of the discharge. TD42SLT Thermodynamic Steam Trap IM-P012-02 CMGT Issue 1... -
Page 8: Maintenance
Tighten to the recommended torque (see Table 1). When maintenance is complete open isolation valves slowly and check for leaks. TD42SLT Thermodynamic Steam Trap IM-P012-02 CMGT Issue 1... - Page 9 72 - 79 ¾" 41 A/F 100 - 110 72 - 79 1" 55 A/F 140 - 160 100 - 114 Strainer (all sizes) 27 A/F 120 - 135 88 - 100 TD42SLT Thermodynamic Steam Trap IM-P012-02 CMGT Issue 1...
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Page 10: Spare Parts
Always order spares by using the description given in the column headed 'Available spares' and state the size and type of trap. Example: 1 - Strainer screen and gasket for a Spirax Sarco ½" TD42SLT thermodynamic steam trap. Fig. 3 TD42SLT Thermodynamic Steam Trap... - Page 11 TD42SLT Thermodynamic Steam Trap IM-P012-02 CMGT Issue 1...
- Page 12 TD42SLT Thermodynamic Steam Trap IM-P012-02 CMGT Issue 1...
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