Spirax Sarco BTM7 Stainless Steel Thermostatic Clean Steam Trap

The Spirax Sarco BTM7 is a maintainable thermostatic steam trap designed to remove condensate from clean steam systems with minimal backing up. Applications include sterile steam barriers, process vessels and CIP/SIP systems. Manufactured in 316L stainless steel with minimal crevices, it is self-draining and operates close to steam temperature. Traps are individually packaged with protective end caps and sealed in a polythene bag.

Fixed bleed to ensure fail open operation Special connections to suit most piping systems.

For use on systems where there is, or maybe lactic acid present an FEP encapsulated silicone 'O' ring is recommended and available.

Certifications

This product is available with certification to EN 10204 3.1. Note: All certification / inspection requirements must be stated at the time of ordering.

Installation note:

The trap is designed for installation in vertical lines with the flow downward to ensure self-draining operation. Do not expose element to superheat conditions since over-expansion may result. Suitable isolation valves must be installed to allow for safe maintenance and/or replacement.

 

# Part Materials
1 Body (Inlet) Stainless Steel - AISI 316L (4.4404)
2 Body with Seal (Outlet) Stainless Steel - AISI 316L (4.4404)
3 O-Ring Standard:  Grey Viton
Optional:    FEP Encapsulated Silicone
4 Element Stainless Steel - AISI 316L (4.4404)
5 Nuts & Bolts
Washers
Stainless Steel - AISI 316L (4.4404)
Austenitic Stainless Steel
Download CAD Drawing Download CAD Reader

 

Standards
  • The BTM7 has been designed in general accordance with ASME BPE.  It also complies with the requirements of the European Pressure Equipment Directive 97/23/EC.
  • All wetted parts of this trap are manufactured from FDA approved materials.
  • Part 3, 'O' ring - The standard grey Viton 'O' ring complies with FDA CFR title 21, Paragraph 177, Section 2600.
  • The FEP encapsulated silicone option complies with USP Class VI and FDA CFR title 21, Paragraph 177, Section 1550.
Sizes and Pipe Connections
  • ¼", ½", ¾", 1" screwed BSP or NPT.
    ½", ¾", 1" O/D x 16 swg (0.065") wall thickness tube butt weld.
    ½", ¾", 1" sanitary clamp compatible hygienic connection.
DIN 11850 (Series 1) tube butt weld ends
  • 12 mm O/D x 1.0 mm wall thickness tube butt weld (DN10-D)
    18 mm O/D x 1.0 mm wall thickness tube butt weld (DN15-D)

 

ISO 1127 (Series 1) tube butt weld ends
  • 13.5 mm O/D x 1.6 mm wall thickness tube butt weld (DN8-I)
    17.2 mm O/D x 1.6 mm wall thickness tube butt weld (DN10-I)
    21.3 mm O/D x 1.6 mm wall thickness tube butt weld (DN15-I)
  • Note: Other connection options are available on request. Please Contact STI.
Pressure/Temperature Limits
  • The BTM7 should not be used in this region as damage to the internals may occur.
  • Note: For hygienic/sanitary clamp ends, the maximum pressure/temperature may be restricted by the gasket or sanitary clamp used. Please Contact STI.

 

 

Body Design Conditions
PMA Maximum allowable pressure 7 bar g @ 170°C
TMA Maximum allowable temperature 170°C @ 7 bar g
N/A Minimum allowable temperature -10°C
PMO Maximum operating pressure for saturated steam service 7 bar g
TMO Maximum operating temperature 170°C
N/A Minimum operating temperature 0°C
N/A Designed for maximum cold hydraulic test pressure 10.5 bar g

 

Capacities

 

Dimensions/Weights (approximate) in mm and kg
Size A B
Tube
C D
Screwed
E
Screwed
F
Sanitary Clamp
Tube Weight
Screwed
Sanitary Clamp
1/4" 70 - - 27 58 - - 0.53 -
1/2" 70 106 40 27 74 49 0.62 0.66 0.62
3/4" 70 106 40 32 81 49 0.68 0.77 0.62
1" 70 106 40 41 95 53 0.77 0.90 0.90
DN8* 70 106 40 - - - 0.53 - -
DN10 70 106 40 - - - 0.53 - -
DN15 70 106 40 - - - 0.62 - -

*DN8 only available for ISO 1127 tube ends.

 

 

 

 

 

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