CP Test - VALVCO manufactures grey cast iron manhole covers, manhole frames, manhole cover keys and manhole riser rings for municipal, industrial and urban settings.
Cast Iron Manhole with HDPE Skirt
12" x 12" skirt
8" x 8"skirt
8" x 12" skirt
7" x 9" skirt
Watertight Manhole Economical - yet durable, this manhole features a Heavy-duty cast iron (ASTM A-48 Class 30 or better) upper assembly. Certified by an independent laboratory to meet H-20 roadway loading. Lightweight, durable, corrosion and hydrocarbon-resistant High Density Polyethylene (HDPE) plastic shirt, painted lid with monitor well triangle. Buna-NO rubber gasket set into collar insures water-tight seal with pressure fit. High quality stainless steel bolts set into gasketed washers maintain water-tight seal.ECT distributes for the following manufacturers: CP Test / Valvco, Lyco / Nashua Foundries, Pemco. We offer a full line of their entire catalogs at discount pricing. Please let us know what we can quote. Below are some of our most common manholes.
Cast Iron Manholes with Galvanized
Metal Skirt
2" x 4" skirt
4" x 10" skirt
Flush Bolt Down Watertight Manhole
Manholes provide H-20 traffic-rating and help protect against
water infiltration for monitoring wells completed at-grade. High
grade Buna-N™ gaskets Utilizes a single brass Penta bolt
for minimum interference. Clearly marked "Do Not Fill" for
safety. Designed for ultimate strength with sturdy one-piece
construction. Small size allows for greater flexibility.