8″ Manhole Ventilation Passthru (MVP)
The Manhole Ventilation Passthru (MVP) is designed to maintain and redirect air flow with minimal restriction into manholes, sewers and tanks. The MVP is the first manhole system that combines the low-profile manhole air vent, 90° elbow and built in mounting all into one easy assembly. Patented by Allegro (US Patent No. D673,668).
MATERIAL
MVP
Linear Low-Density Polyethylene (LLDPE)
Recyclable
Bright yellow color
DUCTING
Vinyl and polyester with PVC coating
Compressible inner support coils
Heat resistant up to 180° F (88.2° C)
Meets ASTM 227 specs
UL 94V-0 Flame Retardant
FEATURES:
Low profile elbow fits underneath the lower cross bar of the guardrail
Manhole cover fits into flat channeled corners for stabilization
Small storage bag holds ducting
Quick release draw string to drop ducting into manhole
Collapsible duct for easy entry springs back into shape once worker is down into the manhole
Combines three components, the low-profile manhole air vent, 90° elbow and built-in mounting all into one easy assembly
Reducing overall size, storage and shipping cost