Midland Brass Captive Sleeve Compression Union Fitting
The Midland brass captive sleeve compression union joins two tube ends into a leak-tight, permanent-feeling connection without soldering or flaring. Its three-piece design — body, captive sleeve, and nut, with the sleeve retained inside the nut — makes assembly fast and repeatable in the field, and the all-brass construction resists corrosion in air, oil, water, and vacuum service.
Key specifications
- Type: Captive sleeve compression union (tube-to-tube)
- Material: Brass
- Connection: Compression on both ends; captive sleeve retained in nut
- Tube OD sizes: 1/8", 3/16", 1/4", 5/16", 3/8", 1/2", 5/8", plus a 3/8" x 1/4" reducing union
- Temperature range: -65°F to +250°F
- Media: Compressed air, oil, water, and vacuum
Typical applications
Used throughout pneumatic, lubrication, and instrumentation systems to join lengths of copper, brass, or aluminum tubing — including air lines, oil and grease delivery lines, coolant and water lines, and control tubing on compressors and machinery.
Choose your tube outside diameter from the options above. The Midland brass captive sleeve compression union delivers a reliable, reusable tube connection for low-pressure air, oil, and water lines, with a corrosion-resistant brass body built for long service.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
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