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Features e Unique Spill Bucket Mounting Ring - No bolt holes outside the ring, removes a leak path between the manhole cover and spill bucket mounting ring. The need for supplemental sealants is eliminated. Contractor - Friendly Installation - Studded mounting ring simply bolts together inside the spill containment bucket. No need to align bolt holes in the manhole cover. Raintight Service - Buna-N gaskets on the manhole and spill bucket mounting rings help prevent contamination of the sump area from surface water intrusion. • Highway 20 Load Rating - The rugged diamond plate steel manhole covers, as well as the cast iron (RT) or aluminum (SC) spill container covers meet H2O Load Rating requirements. * Spill Container and Manhole Positive I.D. System - Special recesses cast into spill container covers and machined into manhole lids allow 'Peel & Stick" tags to be attached to the lids. Matching bucket tags can be affixed to the inside of the spill container to prevent covers from getting switched. • CARB Certified - 311 Series Approval Letter #93-25, 500 Series EVR Approved 102-B, 511 and 611 Series Approval Letter #92-12. • FiIINapor Ports - Configurations are available to accommodate a single fill riser, dual ports for both a fill and vapor riser, and triple and quad ports for multi- ple fill and vapor risers. Vapor ports can be supplied with or without containment buckets. • Port Configurations - Standard port locations match the popular riser spac- ings (12", 14", 16" or 24") and bung con- figurations on underground storage tanks. Custom port locations are easily accommodated. * Monitoring Ports - Bolt -down, gasketed monitoring ports can be incorporated into the manhole cover to provide observation access to the sump without removing the entire cover. Standard port diameter is 5" (13 cm) with larger ports available upon request. Manhole Cover Sizes - Standard bolt - down manhole cover diameters of 30" (76 cm), 37" (94 cm), 42" (107 cm), and 48" (122 cm) allow ample access to the sump area. Provision for a W'-13 lifting eyebolt is provided on 42" and 48" mod- els. Heavy-duty reinforced lid options are also available. �► Spill Container Cover Options - Standard spill container options include the patented POMECO/OPW dam and Multi -Port Manhole Water Shroud System Option* groove Raintight (RT) design and the watertight Sealable Cover (SC) "plumber's plug" design. The Raintight cover features a finger -grip lifting facility and an integral seal. The sealable cover features.a cam -operated mechanism that expands the seal against the vertical wall of the mounting ring. Both of these water -shedding covers are protected by raised mounting rings. A below -grade (BG) option is available which provides watertight underground containment vessels while maintaining a non -water- tight flush manhole cover surface. Fastener Options - Two types of fasteners are available to secure the manhole lid and monitoring port to mounting rings. Standard are 5/16"-18 hex head bolts. Optional are POMECO/OPW Roto -Lock Fasteners. The POMECO/OPW Roto -Lock system enables a secure, watertight connection without the need to locate threaded bolt holes on the mounting ring. Custom Multi -Port Manholes - Contact your POMECO/OPW representative. Powder Coated Rings & Covers - Available upon request. The OPW/POMECO Multi -Port Manhole Water Shroud (MPWS) system is designed to completely isolate surface water and condensa- tion from the Tank Sump. The MPWS features an injection molded fiberglass Water Shroud lid that mates to a standard tank sump top hat reducer. Shroud Boots isolate the spill container buckets using stainless steel band clamps, which provide a tight seal between the water shroud top hat and the underside of the spill container mounting rings. A 6" Sump Inspection Port is provided on each FRP Cover, allowing full inspection access through the Multi -Port Gauge Port. The OPW/POMECO Water Shroud system is available in 33" and 36" models. The MPWS Water Shroud is sold separately. *Only available with new 500 Series Multi -Ports. Shroud Boots — Vinyl Plastisol Sump Inspect Port (SIP) — Vapor Tight, Clear ABS Construction Inspection Port FRP Cover — Injection Molded Fiberglass Cover