Spirax Sarco BTS7.1 is a fully sealed thermodynamic clean steam trap featuring an AISI 316L stainless steel body and wetted components, with sanitary clamp connections available in 1/2 in. and 3/4 in. sizes. Designed for PN7 pressure, it is suitable for clean steam condensate drainage from sterilizers, hygienic process vessels, and CIP/SIP systems.
BTS7.1 Stainless Steel Clean Steam Trap Product Photo
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Spirax Sarco BTS7.1 Stainless Steel Clean Steam Trap
Clean steam trap for sterilizers and CIP/SIP systems, with sanitary clamp connections.
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Specifications
- Trap type
- Fully sealed thermostatic steam trap
- Suitable medium
- Clean steam
- Body material
- AISI 316L stainless steel (1.4404)
- Wetted parts material
- AISI 316L stainless steel (1.4404)
- Internal surface roughness
- Ra 0.5
- External surface roughness
- Ra 0.75
- Connection type
- Hygienic clamp connection
- Connection size
- 1/2", 3/4"
- Design pressure rating
- PN7
- Maximum allowable pressure
- 7 barg @ 170°C
- Maximum allowable temperature
- 170°C @ 7 barg
- Minimum operating temperature
- 0°C
- Maximum cold hydraulic test pressure
- 10.5 barg
- Capacity
- At a differential pressure of 0.06-7 bar, cold water capacity: 320-900 kg/h; hot water capacity: 18-350 kg/h
- Installation orientation
- Install in vertical piping with downward flow
- Fail-open discharge option
- Fixed discharge orifice for opening in the event of failure
- Hygienic standard
- Complies with ASME BPE
- Pressure Equipment Directive
- Complies with 97/23/EC
- Wetted parts compliance
- Complies with FDA/3-A requirements
Application scenarios
Clean Steam Condensate Drainage from Sterilizers
Used at clean steam condensate drainage points on sterilizers to discharge condensate formed during operation. The valve is designed for clean steam service, features 316L stainless steel construction and sanitary clamp connections, and complies with ASME BPE hygienic standards.
Clean Steam Condensate Drainage from Hygienic Process Vessels
Used at condensate drainage points associated with process vessels that use clean steam to discharge condensate generated on the steam side. The product features 316L stainless steel wetted components, an internal surface roughness of Ra 0.5, and sanitary clamp connections, making it suitable for hygienic clean steam systems.
Clean Steam Branch-Line Condensate Drainage in CIP/SIP Systems
Used at clean steam branch-line or equipment condensate drainage points in CIP/SIP systems to discharge steam condensate during cleaning or sterilization-in-place. The product is specifically suitable for CIP/SIP systems and drains condensate at temperatures close to saturated steam temperature.
Selection points
316L Wetted Material and Low-Roughness Surface
The valve body and wetted components are made of AISI 316L stainless steel (1.4404), with an internal surface roughness of Ra 0.5 and an external surface roughness of Ra 0.75.
Hygienic and Pressure Equipment Compliance
The product complies with ASME BPE and the 97/23/EC Pressure Equipment Directive. All wetted components meet FDA/3-A requirements.
Sanitary Clamp Connection
The product uses sanitary clamp connections for clean steam systems and is available in 1/2 in. and 3/4 in. connection sizes.
Fully Sealed Thermostatic Steam Trap
This model is a fully sealed thermostatic steam trap designed for clean steam.
Vertical Downward Installation Requirement
The product must be installed in vertical piping with downward flow.
Fail-Open Fixed Bleed Orifice Option
A fixed bleed orifice option is available to provide discharge in the event of failure.
Installation & maintenance notes
Install for Vertical Downward Flow
This steam trap must be installed on vertical piping with downward flow.
Verify That Pressure and Temperature Are Within the Permitted Range
Before installation and commissioning, verify that actual operating conditions do not exceed 7 barg@170°C and that the operating temperature is not below 0°C.
FAQ
What applications is the BTS7.1 clean steam trap primarily intended for?
This model is used for condensate drainage in clean steam systems and can be applied to sterilizers, process vessels, and CIP/SIP systems.
What are the material and surface finish features of the BTS7.1?
Both the body and thermostatic element are made of AISI 316L (1.4404) stainless steel. The internal surface finish is 0.5Ra, and the external surface finish is 0.75Ra.
What connection sizes are available for the BTS7.1?
Available in 1/2-inch and 3/4-inch sizes, with hygienic clamp connections using sanitary quick-clamp ends.
What are the maximum operating pressure and temperature of the BTS7.1?
Under saturated steam conditions, the maximum operating pressure is 7 barg and the maximum operating temperature is 170°C. The body design pressure is PN7, and the design maximum cold hydraulic test pressure is 10.5 barg.
How should the BTS7.1 be installed, and can it be serviced?
It should be installed in vertical piping with downward flow to prevent the thermostatic element from being exposed to superheated steam. This model is a fully sealed, non-serviceable device with no spare parts available; a fixed discharge orifice is optional for opening in the event of failure.