Product Handbook 2026 - Volume 2

Steam traps Balanced pressure

8

Dimensions/weights (approximate) in mm (inches) and kg (lbs)

A

B

C

D

Weight

Size

Tube

Screwed Tube Screwed

C

58 (2.28) 74 (2.91) 81 (3.19) 95 (3.74)

0.53 (1.17) 0.49 (1.08) 0.60 (1.32) 0.73 (1.61)

¼"

0.44 (0.97) 0.51 (1.12) 0.60 (1.32)

½"

¾"

Tube

B

40 (1.57)

1"

106 (4.17)

40 (1.57)

DN8*

0.35 (0.77)

DN10

C

0.42 (0.93)

DN15

* DN8 only available for ISO 1127 tube ends.

A

5.2.25

Screwed

D

8.2 44

Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P180-05) supplied with the product. Installation note: The trap is designed for installation in vertical lines with the flow downward to ensure self-draining operation. Do not expose the element to superheat conditions since over-expansion may result. Suitable isolation valves must be installed to allow for safe maintenance/replacement.

How to order Example: 1 off Spirax Sarco non-maintainable DN15 BTS7 clean steam trap with tube ends to ISO 1127, Series 1. (21.3 mm O/D x 1.6 mm wall thickness). Tangent length of tube ends to be 40 mm for ease of orbital welding. Body to be self-draining. Suitable for pressures up to 7 bar g.

Spare parts There are no spare parts for the BTS7.

TI-P180-03 CMGT issue 13

Page 4 of 4

BTS7 Balanced Pressure Thermostatic Steam Trap

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