SPIRAX SARCO · STEAM TRAPS
Spirax Sarco BTD52L Thermodynamic Steam Trap – 316L Stainless Steel for Clean Steam Systems
Spirax Sarco BTD52L thermodynamic steam trap in 316L SS for clean steam mains drainage. PN16, up to 10 bar g. Available at PC Engineering India.
Overview
The Spirax Sarco BTD52L is a thermodynamic steam trap manufactured entirely from 316L austenitic stainless steel, purpose-built for mains drainage in clean steam systems. Its corrosion-resistant construction makes it suitable for pharmaceutical, food processing, and other industries requiring hygienic steam applications.
Operating on the thermodynamic principle, the BTD52L uses the difference in velocity between steam and condensate to open and close a single disc element. This simple yet reliable mechanism ensures efficient condensate removal while minimizing steam loss. The trap is designed for operating pressures up to 10 bar g and temperatures up to 450°C.
The BTD52L complies with the European Pressure Equipment Directive 2014/68/EU and is available with EN 10204 3.1 material certification upon request—an important consideration for validated clean steam systems.
Key Features
- Full 316L stainless steel construction – body, cap, and disc for maximum corrosion resistance
- Compact thermodynamic design – simple operation with only one moving part
- Multiple connection options – BSP, NPT screwed ends; tube ends (ISO 1127, DIN 11850); sanitary clamp compatible
- PN16 body rating – maximum allowable pressure 16 bar g at 50°C
- Recommended operating pressure – up to 10 bar g at 220°C for steam service
- Optional insulating cover – aluminium cover available for installations exposed to low ambient temperatures or weather
- EN 10204 3.1 certification available – suitable for validated pharmaceutical and food-grade systems
Specifications
| Parameter | Value |
|---|---|
| Body Material | AISI 316L Austenitic Stainless Steel |
| Disc Material | AISI 316L Austenitic Stainless Steel |
| Cap Material | AISI 316L Austenitic Stainless Steel |
| Body Design Conditions | PN16 |
| Maximum Allowable Pressure (PMA) | 16 bar g @ 50°C |
| Maximum Allowable Temperature (TMA) | 450°C @ 8 bar g |
| Recommended Max Operating Pressure (PMO) | 10 bar g @ 220°C |
| Maximum Operating Backpressure (PMOB) | 80% of upstream pressure |
| Minimum Differential Pressure | 0.25 bar g |
| Cold Hydraulic Test Pressure | 24 bar g |
| Operating Temperature Range | 0°C to 450°C |
| Sizes Available | ¼", ⅜", ½" (screwed BSP/NPT); ½" tube end; DN10/DN15 tube ends |
| Tube End Standards | ISO 1127 Series 1, DIN 11850 Series 1 |
| Compliance | PED 2014/68/EU |
| Weight (approx.) | 0.45 kg |
Applications
The BTD52L thermodynamic steam trap is specifically designed for:
- Clean steam systems in pharmaceutical manufacturing and biotech facilities - Food and beverage processing plants requiring hygienic steam - Hospital and healthcare sterilization systems - Mains drainage on clean steam headers and distribution lines - Any application requiring corrosion-resistant, high-purity steam trap construction
The trap can be installed horizontally (preferred) or vertically where space constraints apply. For freeze-prone environments, the optional aluminium insulating cover is recommended.
Frequently Asked Questions
Get a Quote
Contact PC Engineering for pricing, availability, and technical support for the Spirax Sarco BTD52L Thermodynamic Steam Trap. Call us or fill in our inquiry form — our engineers will respond within 24 hours.
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