SPIRAX SARCO · STEAM TRAPS
Spirax Sarco TD120M High Pressure Thermodynamic Steam Trap with Replaceable Seat
Spirax Sarco TD120M high pressure thermodynamic steam trap for superheated steam mains drainage up to 250 bar g. IBR compliant.
Overview
The Spirax Sarco TD120M is a maintainable high pressure thermodynamic steam trap engineered for superheated steam mains drainage applications. Designed to handle pressures up to 250 bar g, this steam trap is ideal for power plants, refineries, and heavy industrial facilities operating high-pressure steam systems.
The TD120M features a replaceable seat and disc assembly, significantly reducing maintenance downtime and total cost of ownership. The integrated strainer protects the trap internals from pipeline debris, ensuring reliable condensate removal without frequent servicing interruptions.
This product fully complies with Indian Boiler Regulations (IBR), 1950, making it suitable for statutory installations across India. The alloy steel construction ensures durability and long service life under demanding operating conditions involving superheated steam.
Key Features
- Replaceable seat and disc for easy field maintenance
- Integral strainer eliminates need for separate line strainer
- High pressure rating up to 250 bar g
- Suitable for superheated steam service up to 525°C
- IBR compliant as per Indian Boiler Regulations, 1950
- Available in butt weld, socket weld, and flanged connections
- Alloy steel body (ASTM A182 F22) for high-temperature strength
- Compact design with low condensate capacity for mains drainage
Specifications
| Parameter | Value |
|---|---|
| Sizes | ½", ¾", 1" (DN15, DN20, DN25) |
| Maximum Allowable Pressure (PMA) | 250 bar g @ 300°C |
| Maximum Allowable Temperature (TMA) | 550°C @ 80 bar g |
| Maximum Operating Pressure (PMO) | 220 bar g @ 374°C (saturated steam) |
| Maximum Operating Temperature (TMO) | 525°C @ 114.9 bar g |
| Minimum Operating Temperature | 0°C |
| Minimum Operating Differential Pressure | 8 bar g |
| Maximum Operating Backpressure | 50% of inlet pressure |
| Body Material | Alloy Steel ASTM A182 F22 |
| Disc Material | Steel BS EN ISO 4957 |
| Seat Material | Steel BS 4659 Gr. BD2 |
| Gaskets | Spirally wound stainless steel with graphite filler |
| Butt Weld Ends | Schedule 160 pipe |
| Socket Weld Ends | ASME B16.11 Class 6000 |
| Flanged Options | EN 1092 PN100/PN160/PN250; ASME Class 600/900/1500 |
| Weight (approx.) | 10.5 kg (weld ends), 17.8–21.7 kg (flanged) |
| Standards Compliance | Indian Boiler Regulations, 1950 |
Applications
The TD120M is specifically designed for high-pressure superheated steam mains drainage. Typical applications include:
- Power generation plants — HP and IP turbine steam lines, main steam headers - Refineries and petrochemical plants — process steam distribution systems - Steel and metal processing — high-temperature steam networks - Fertilizer and chemical plants — superheated steam mains - Any IBR-regulated steam installation requiring certified high-pressure steam traps
Frequently Asked Questions
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Contact PC Engineering for pricing, availability, and technical support for the Spirax Sarco TD120M High Pressure Thermodynamic Steam Trap. Call us or fill in our inquiry form — our engineers will respond within 24 hours.
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