Multipurpose SK Series Ball Valves
Swagelok multipurpose SK series ball valves offer low-torque, quarter-turn
operation in a compact design providing positive shutoff in applications
up to 6000 psig (413 bar).
Specifications
Working Pressure
Temperature
Flow Coefficient
Body Material
Seat Material
End Connections
• Sizes
Configuration
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Up to 6000 psig (413 bar)
–40 to 302°F (–40 to 150°C)
Up to 1.4
316 stainless steel
PEEK
1/4 and 3/8 in.; 6 and 8 mm
On-off
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Features
- Spring-loaded PEEK seats:
- provide chemical compatibility
- provide leak-tight integrity in both low- and high-pressure systems
- O-ring stem seal:
- requires no packing adjustment
- provides leak-tight seal to atmosphere
- Stainless steel floating ball reduces wear and extends cycle life
- Directional handle:
- offers quarter-turn operation
- indicates flow direction
- indicates open/closed position
- Standard panel mounting
- Bidirectional flow
- Field rebuildable with seal kit
- ECE R110-type approval valves available
Testing
Every Swagelok SK series ball valve is factory tested in both flow directions with nitrogen at 1000 psig (69 bar). Seats have a maximum allowable leak rate of 0.1 std cm3/min. Shell testing is performed to a requirement of no detectable leakage with a liquid leak detector.
Cleaning and Packaging
All Swagelok SK series ball valves are cleaned and packaged in accordance with Swagelok Standard Cleaning and Packaging (SC-10). Cleaning and packaging in accordance with Swagelok Special Cleaning and Packaging (SC-11) is available.
Options
- Pneumatic actuators and ISO 5211-compliant pneumatic actuators
- Solenoid valves
- Position indicators
- Limit switches
- ISO 5211-compliant mounting bracket kits
- Electric actuators
- Oval, stainless steel directional, and locking bracket handle options
- Mixed end connections
- Hydrostatic testing
- Buna C O-rings for low-temperature service to –40°F (–40°C)
- PTFE-coated stainless steel ball
- Sour gas service
Certifications and Approvals
SK series ball valves are available with ECE R110-type approval for use in alternative fuel service. Valves with this approval have ultralow-temperature fluorocarbon / D2000 stem O-rings.
- Temperature rating: –40 to 248°F (–40 to 120°C)
- Pressure rating within the range: 3770 psig (260 bar)
See the ECE R110 approval document.
See all alternative fuels certifications and approval documents.