Spirax Sarco BTS7 is a 316L stainless steel thermostatic steam trap for clean steam systems, suitable for operating conditions up to 7 bar g and 170°C. Available with BSP/NPT threaded or butt-weld connections, it complies with ASME BPE standards and can be used for clean steam condensate drainage from SIP, CIP, sterilisers, and process vessels.
BTS7 Stainless Steel Clean Steam Trap Product Photo 6
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Spirax Sarco BTS7 Stainless Steel Clean Steam Thermostatic Trap
Stainless steel thermostatic clean steam trap with threaded or butt-weld connections.
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After-sales support
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Specifications
- Operating principle
- Thermostatic
- Body design pressure
- PN7
- Maximum allowable pressure (PMA)
- 7bar g@170°C
- Maximum allowable temperature (TMA)
- 170°C@7 bar g
- Minimum allowable temperature
- -254°C
- Maximum operating pressure with saturated steam (PMO)
- 7bar g@170°C
- Maximum operating temperature (TMO)
- 170°C@7 bar g
- Minimum operating temperature
- 0°C
- Designed maximum cold hydraulic test pressure
- 10.5bar g
- Body material
- ANSI 316L (1.4404) stainless steel
- Thermostatic element material
- ANSI 316L (1.4404) stainless steel
- Connection type
- BSP/NPT threaded, butt-weld
- Connection sizes
- 1/4", 1/2", 3/4", 1" (threaded); 1/2", 3/4", 1", DN8, DN10, DN15 (butt-weld)
- Butt-weld tube-end standards
- ISO 1127 (Series 1), DIN 11850 (Series 1)
- Product standard
- ASME BPE
- Pressure Equipment Directive
- 97/23/EC (PED)
Application scenarios
Clean Steam Trapping in SIP Systems
Used at drain points on clean steam lines or equipment connections in SIP systems to discharge condensate formed during sterilization.
Clean Steam Line Trapping in CIP Systems
Used at drainage points on clean steam lines in CIP systems to discharge steam condensate.
Clean Steam Condensate Discharge from Sterilizers
Used to discharge condensate from clean steam systems in sterilizers; this thermostatic trap drains condensate at a temperature close to saturated steam temperature.
Clean Steam Trapping for Process Vessels
Used at clean steam connections or drainage points associated with process vessels to remove condensate formed during operation.
Selection points
316L Material and Cleanliness Standard Compliance
The valve body and thermostatic element are made of ANSI 316L (1.4404) stainless steel. All wetted parts comply with FDA requirements, and the product conforms to ASME BPE standards.
Threaded and Butt-Weld Connection Options
Available with BSP/NPT threaded connections or butt-weld connections. Butt-weld tube ends comply with ISO 1127 Series 1 and DIN 11850 Series 1.
Optional Fixed Bleed Orifice for Fail-Open Operation
An optional fixed bleed orifice is available to provide fail-open discharge.
Installation & maintenance notes
Avoid Superheated Steam Conditions
During installation and operation, prevent the BTS7 thermostatic element from being exposed to superheated steam conditions exceeding its maximum operating temperature of 170°C.
FAQ
What clean steam applications is the BTS7 suitable for?
The BTS7 is designed for clean steam condensate drainage in sterilizers, process vessels, and CIP/SIP systems. It can discharge condensate at temperatures close to saturated steam temperature.
What are the BTS7's construction and operating characteristics?
The BTS7 is a fully sealed thermostatic steam trap with a body and thermostatic element made of 316L stainless steel. This product is a non-maintainable device.
What piping connection options are available for the BTS7?
The BTS7 is available with BSP or NPT threaded connections, as well as butt-weld connections for ASTM steel tube, DIN 11850 (Series 1), and ISO 1127 (Series 1). The specific configuration must be confirmed according to the actual model and application conditions.
What are the BTS7's pressure and temperature limits?
The BTS7 body is designed for PN7 conditions. Both the maximum allowable pressure and the maximum operating pressure with saturated steam are 7 bar g@170°C. The maximum allowable and maximum operating temperature is 170°C@7 bar g, and the minimum operating temperature is 0°C.
What should be considered when installing the BTS7?
The BTS7 should be installed in a vertical pipe with downward flow to facilitate condensate drainage. The thermostatic element should not be exposed to superheated steam. Suitable isolation valves are recommended upstream and downstream of the trap to enable safe replacement.