What is the difference between TD52M and TD52MA?

The TD52MA includes an anti-air-binding disc that allows faster air venting during system start-up. This is particularly useful in batch processes where rapid air removal is critical to achieving operating temperature quickly.

Can I use these steam traps with backpressure in the condensate return line?

Yes. The TD10 can handle backpressure up to 50% of upstream pressure, while the TD52M and TD259 can operate with backpressure up to 80% of upstream pressure. Ensure the differential pressure remains above 0.25 bar for satisfactory operation.

Is the TD52M suitable for outdoor installation?

Yes, but an optional insulating cover is recommended for sizes ¼" to ¾" when the trap is exposed to low ambient temperatures, wind, or rain. The cover prevents excessive heat loss that can affect trap performance.

What certification is available for these steam traps?

TD52M is available with EN 10204 3.1 certification. TD10 and TD259 are supplied with a manufacturer's Typical Test Report. Certification requirements must be specified at the time of order.

What is the minimum operating differential pressure required?

All three models require a minimum differential pressure of 0.25 bar (3.6 psi) between inlet and outlet for reliable operation.

SPIRAX SARCO · STEAM TRAPS

Spirax Sarco TD10, TD52M & TD259 Thermodynamic Steam Traps

Name: Spirax Sarco TD10, TD52M & TD259 Thermodynamic Steam Traps
Brand: Spirax Sarco

Spirax Sarco TD10, TD52M, TD259 thermodynamic steam traps for steam mains drainage & tracing lines. Supplied by PC Engineering India.

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Overview

The Spirax Sarco TD10, TD52M, and TD259 are thermodynamic disc-type steam traps engineered for efficient condensate removal in industrial steam systems. These traps operate on the principle of flash steam dynamics, using a single disc mechanism to reliably discharge condensate while preventing live steam loss.

The TD10 is a compact, miniature thermodynamic trap designed for small steam users such as steam irons and instrument tracers. The TD52M is a maintainable stainless steel trap suited for steam mains drainage with options for low capacity (TD52MLC) and anti-air-binding (TD52MA) configurations. The TD259 serves instrument tracing and small bore steam heating applications, with an anti-air-binding disc variant (TD259A) available for batch process start-ups.

All three models comply with the European Pressure Equipment Directive 97/23/EC and are available with appropriate certification documentation for quality assurance requirements.

Key Features

Thermodynamic disc operation for reliable condensate discharge
Stainless steel construction on TD52M for corrosion resistance
Compact design suitable for space-constrained installations
Anti-air-binding disc options (TD52MA, TD52MLCA, TD259A) for rapid air venting during start-up
Low capacity variants available for minimal condensate loads
Optional insulating covers for TD52M (¼" to ¾") to protect against heat loss in exposed environments
Maintainable internals for reduced lifecycle costs
BSP and NPT thread connections available

Specifications

Parameter	TD10	TD52M	TD259
Sizes	¼"	¼", ⅜", ½", ¾", 1"	¼"
Connections	Screwed BSP / Swagelok	Screwed BSP or NPT	Screwed BSP or NPT
Body Design Conditions	PN16	PN25	PN25
Max Allowable Pressure (PMA)	16 bar g @ 120°C	25 bar g @ 120°C	25 bar g @ 120°C
Max Operating Pressure (PMO)	10 bar g	17 bar g	17 bar g
Max Operating Temperature (TMO)	350°C @ 10 bar g	350°C @ 17 bar g	350°C @ 17 bar g
Min Operating Temperature	0°C	0°C	0°C
Max Backpressure	50% of upstream pressure	80% of upstream pressure	80% of upstream pressure
Min Differential Pressure	0.25 bar	0.25 bar	0.25 bar
Body Material	Stainless Steel	Stainless Steel	Stainless Steel
Certification	Manufacturer's Typical Test Report	EN 10204 3.1 available	Manufacturer's Typical Test Report

Applications

Spirax Sarco TD10, TD52M, and TD259 thermodynamic steam traps are used across a wide range of industrial applications:

- Steam mains drainage – Removing condensate from steam distribution headers and branch lines - Instrument and pipeline tracing – Maintaining temperature in small-bore tracer lines for process instrumentation - Small steam users – Draining steam irons, laboratory equipment, and low-load heating coils - Batch processing – Anti-air-binding variants ensure rapid start-up by venting air quickly - Process industries – Refineries, chemical plants, pharmaceuticals, food & beverage, and textile manufacturing

Frequently Asked Questions

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Contact PC Engineering for pricing, availability, and technical support for Spirax Sarco TD10, TD52M & TD259 Thermodynamic Steam Traps. Call us or fill in our inquiry form — our engineers will respond within 24 hours.

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