Swagelok SS-6BK-1O is a stainless steel bellows-sealed valve designed for reliable system fluid isolation with a packless design and welded seal. This BK series valve features a 316 stainless steel body, PCTFE stem tip, and 3/8 inch Swagelok tube fitting connections. It is equipped with a 1 series pneumatic actuator configured for normally open (NO) spring return operation, making it ideal for applications where maintaining an open flow path during power or air loss is critical.

Technical Specifications

Specification	Value
Part Number	SS-6BK-1O
Actuator Type	Pneumatic (1 Series)
Operation Mode	Normally Open (NO) Spring Return
Flow Pattern	Straight (2-way)
Flow Coefficient (Cv)	0.86
Cleaning Process	Special Cleaning and Packaging (SC-11)
Testing	Helium leak testing (SCS-00020)
Stem Type	Conical

Materials of Construction

Component	Material
Body	316 Stainless Steel
Bellows	321 Stainless Steel
Stem Tip	PCTFE
Body Seal	Gasket with soft seat
Gasket	PTFE-Coated 316 SS Gasket

Pressure and Temperature Ratings

Condition	Rating
Room Temperature Pressure	500 PSIG @ 100°F (34.4 BAR @ 37°C)
Max Temperature Pressure	500 PSIG @ 200°F (34.4 BAR @ 93°C)
Temperature Range	-20°F to 200°F (-28°C to 93°C)

Features and Benefits

• Packless Design: Uses a bellows seal to eliminate the need for traditional stem packing, providing a leak-tight seal to the atmosphere.
• Welded Seal: Ensures robust containment for critical system fluids.
• Service Class: Rated for general service, offering high-purity performance and reliability.
• Actuation: Integrated pneumatic actuator allows for remote operation and automated system control.

Selection Note

When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Do not mix Swagelok components with those of other manufacturers.