A-Best Industrial Inc. Fittings, Valves, and Tubing supplies semiconductor fabs, tool hookup contractors and gas system builders with DK-Lok clean fittings, metal gasket face seal fittings, bellows valves and vacuum fittings for UHP gas and high-purity systems. We're an authorized DK-Lok distributor at the Port of Los Angeles in San Pedro, CA. Orders ship the same day we receive your PO.
What we supply for semiconductor
Clean fitting specifications
- Materials: 316L stainless steel and 316L VAR
- Surface finish: 10 Ra (BA) or 5 Ra (EP)
- Cleaning: passivated to ASTM A380, cleaned in a Class 100 environment and double-bagged under nitrogen
- Traceability: heat codes laser-marked on every part
V13W bellows valves: up to 2,500 psig (derates at high temperature), -20°F to 1,200°F, 316 SS body with 321 SS bellows, 1/4" to 1/2" DK-Lok, socket weld or butt weld ends. Ratings vary by size, material and end connection.
Where they're used
- Gas cabinets, valve manifold boxes and gas panels
- Tool hookup and process gas lines
- Specialty and bulk gas distribution
- Vacuum and pump lines
- Process cooling water and facility utilities
Frequently asked questions
What finishes do DK-Lok clean fittings come in?
10 Ra (BA) or 5 Ra (EP), in 316L or 316L VAR stainless steel.
Can metal gasket face seal fittings be reused?
Yes. They can be remade with a new gasket.
How are clean fittings packaged?
They're cleaned in a Class 100 environment and double-bagged under nitrogen, with heat codes laser-marked for traceability.
Can you help match part numbers from another brand?
Yes. Send them through our cross reference or call us.
See also: Data centers · Stack testing · DK-Lok distributor in California
Building a gas panel or tool hookup? Call 310-833-3353 or email sales@abesttube.com.
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