ALLEGRO 9510-50 - 8" Manhole Ventilation Passthru (MVP)

Maintains and redirects air flow with minimal restriction into manholes

The first manhole system that combines the low profile manhole air vent, 90° elbow, and built-in mounting all in one unit. This unit comes with a collapsible duct, for easy entry, stored in a small storage bag that can be dropped into the manhole with a quick release of the drawstring. The Collapsible duct springs back into shape once the worker is down into the manhole. The ducting is vinyl and polyester with PVC coating, heat resistant up to 180° F, meets ASTM 227 specs, and is UL 94V-0 flame retardant. The manhole cover fits into a flat channel corner for stabilization. Compact, lightweight, and made from Linear Low-Density Polyethylene (LLDPE), this unit is easy to store and ships in one small carton. Recyclable.

Features:

• MVP made from Linear Low-Density Polyethylene (LLDPE)
• Bright yellow color for easy visibility
• Available with and without 15' (4.5 m) ducting
• Ducting is made from vinyl and polyester with PVC coating
• Ducting is heat resistant up to 180° F (88.2° C)
• Small storage bag holds ducting
• Quick release draw string to drop ducting into manhole
• Patented by Allegro
• Made in USA

Benefits:

• The first manhole system that combines the low profile
  manhole air vent, 90° elbow, and built-in mounting all in
  one unit.
• Collapsible duct, for easy entry, stored in a small storage
  bag that can be dropped into the manhole with a quick
  release of the drawstring.
• The manhole cover fits into a flat channel corner for
  stabilization.
• Compact, lightweight, and made from Linear Low-Density
  Polyethylene (LLDPE), this unit is easy to store and ships
  in one small carton.
• Ducting springs back into shape once worker is down into the
  manhole
• Reduces overall size, storage, and shipping cost

Applications:

• Construction
• Industrial
• Sewer
• Confined Space

Specifications: