1 of 2001
March 16, 2001
Products Affected
All SuperLite® Helmets and KMB BandMasks® manufactured prior to October 1993
High Flow Auxiliary Valve Part # 505-070
DSI® announces it's new, High Flow Emergency Valve, part # 505-070, as standard issue on all SL-17s, SL-27®s, KMB18s/28s, and manifold block assemblies starting Oct. of 1993.
Parts for the new valves are not interchangeable with the old style valves!
The old style valves PART # 505-018 are now discontinued and parts availability is limited to stock on hand.

The new emergency valve body is visibly different from the old style valve. It is slightly longer and the fittings are more offset. It also has the Kirby Morgan® diamond emblem engraved on the side for easier identification.

- 550-140 Emergency Valve Body
- 550-138 Stem
- 540-095 Washer
- 520-024 Packing
- 550-091 Packing Nut
- 520-025 Knob, Control
- 535-802 Spring
- 550-019 Locknut
- 505-070 Emergency Valve Assembly
Location numbers are for this sheet only.