Risers, Spools, & Rings

Features

Risers

• 8 API 12F flange connections top and bottom.
• Usually angled to accommodate 12:1 roof pitch. Also available straight.
• Allows easier external access to vent bolt connections.
• Pipe ID suitable to accommodate Series 4000 Marsh Hawk installation.

Spools

• Different flange connections top and bottom to adapt an existing tank connection to a particular vent.
• Allows easier external access to vent bolt connections.
• Better accommodates torch cut roof vent connections for improved sealing performance.

Bolt Rings

• Provides drop-on installation of a Series 4000 Marsh Hawk directly onto a tank roof or other applications where the fasteners may be inaccessible.