SA18 Flush Mounted Fuel Drain Valve 1/8-27 NPT, SAF-AIR, FAA-TSO, McFarlane

Please confirm the SA18 fuel drain valve’s compatibility with your aircraft using this document:

• Fuel system parts section of McFarlane Aviation catalog (PDF)

Designed to be an exact replacement for the Auto Valve F391 line of flush fuel drain valves. These valves offer a dependable, low-cost solution when a flush mount is needed.

• Manufactured by SAF-AIR Products, Inc.
• FAA-TSO-C76 Approved
• Thread: 1/8 NPT
• Locking: No
• Flush Mounted: Yes
• Open Action: Push
• Use Pin Type Cup: Yes
• Material: 360 Brass
• Can be rebuilt, simply remove a ‘C’ clip
• Standard fuel resistant o-rings included
• A clean, no mess way to test fuel
• Push to test

Thread: “UNF” (Fine thread) type are straight, non-sealing threads that rely on an O-ring to provide a seal. “NPT” (Pipe thread) type are tapered thread that seal as they are tightened.
Locking: Valve locks in the open position for easy draining.
Flush mounted: Valve is designed to mount flush with aircraft skin.
Use Pin Type Cup: Pin type cups similar to MCCCA-39680 may be used with indicated valves for sampling fuel.
Open Action: “Spiral” valves require a push and turn action to open. “Push” valves require a push action to open.
Hose Adapter Size: A hose may be attached to the valve for ease of draining fuel. The size is the hose I.D.