Manhole Shield

 

Manhole Equipment: Shields

Pneumatic seal keeps ground water from flowing into the open manholes. Just inflate tube with 5-10 lbs. of air or nitrogen to form a water-tight seal. No clamps or sealing compounds required. Series 2730 (reversible 27″ & 30″) fits most communications manhole openings. Model 3336 (33″ & 36″) fits many Electric Utility manholes. Custom sizes are available. All aluminum fabrication.

Model Description Weight
2730-8A (27″ or 30″ dia.) 8″ High 17 lbs
  (68.5cm or 76cm) × 20cm (7.7 kg)
2730-12A (27″ or 30″ dia.) 12″ High 20 lbs
  (68.5cm or 76cm) × 30.5cm (9.0 kg)
3336-12A (33″ or 36″ dia.) 12″ High 24 lbs
  (84cm or 91cm) × 30.5cm (11 kg)
2750 Inner Tube Replacement 2 lbs
    (.90 kg)