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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:Â Grey Viton
Optional:Â Â Â FEP Encapsulated Silicone |
| 4 |
Element |
Stainless Steel - AISI 316L (4.4404) |
| 5 |
Nuts & Bolts
Washers |
Stainless Steel - AISI 316L (4.4404)
Austenitic Stainless Steel |
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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.
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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)
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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 Carolina Components Group.
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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 Carolina Components Group.
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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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