Swagelok SS-6BK-TW-1C straight-through stainless steel bellows-sealed valve with actuator. Swagelok bellows valves feature a packless design and welded seals to isolate system fluids and achieve reliable, leak-tight performance. They are ideal for applications where an atmospheric seal is critical, offering a variety of options for general and high-purity service.

Specifications

Specification	Value
Actuator Model	Series 1
Actuator Mode	Normally Closed Spring Return
Actuator Type	Pneumatic
Bellows Material	321 Stainless Steel
Body Material	316 Stainless Steel
Body Seal	Gasket with soft seat
Cleaning Process	Special Cleaning and Packaging (SC-11)
Connection 1 Size	3/8 in.
Connection 1 Type	Tube Socket Weld (TSW)
Connection 2 Size	1/2 in.
Connection 2 Type	Tube Butt Weld (TBW)
Max Cv	0.86
Flow Pattern	Straight-through (2-way)
Gasket	PTFE-coated 316 Stainless Steel gasket
Maximum Temperature	200 °F (93 °C)
Pressure Rating at Max Temp	125 PSIG @ 200 °F / 8.6 BAR @ 93 °C
Minimum Temperature	-20 °F (-28 °C)
Room Temperature Pressure Rating	125 PSIG @ 100 °F / 8.6 BAR @ 37 °C
Service Class	General
Stem Tip Material	PCTFE
Stem Type	Conical
Surface Finish	Standard
Testing	Helium leak testing per SCS-00020
eClass (4.1 / 5.1.4 / 6.0 / 6.1 / 10.1)	37010201
UNSPSC (4.03 / 10.0 / 11.0501 / 13.0601 / 15.1)	40141609
UNSPSC (17.1001)	40183102