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| VSS-QD Sugg. Specs |
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Suggested Specifications for Architects and Engineers Furnish and install, as shown on plans, a Federal Pump Corporation Type VSS-QD Quick-Disconnect duplex submersible sewage pump unit. The pumps shall be of cast iron construction with non-clog, balanced impellers, and rated as shown in the pump schedule. Each pump shall have Quick-Disconnect fittings including base plate, guide brackets, base elbow and lifting cable. Each pump shall be removable from the pit by riding up on the guide rail (4x4 wide flange beam), without disconnecting any piping or electrical connection, and without anyone entering the pit. Pumps shall be relowered to their operating position in the same manner. Each motor shall be air filled, protected by double-sealed oil chamber, and shall have a stainless steel shaft, thermal sensors, moisture sensing probe in the seal chamber, and 25-ft. waterproof cable. Motors shall be rated as shown in the pump schedule. Pump control shall be by a Type SBS Submers-a-bulb controller, including four mercury tube bulbs on Style 1 suspension bracket. A NEMA-4 junction box shall be provided together with a control panel in a NEMA-1 wall-mounting enclosure, including therein fusible disconnect switches, magnetic starters, HOA selector switches, automatic pump alternator, required relays and transformers, pump-run lights plus an alarm bell and silencer with lights to indicate high water and outer seal failure conditions. For concrete pit and thru-cover pump discharge, add the following
specification paragraph: For concrete pit and under-cover pump discharge, add the following
specification paragraph: The access door shall be single-leaf with steel frame, diamond steel leaf, steel hinges and torsion bars for easy opening. The door and frame shall have a corrosion-resistant coating plus required brackets for the Quick-Disconnect guide rails. Also furnish a concrete valve chamber of the size shown in the pump schedule, with steel-covered top access opening, to house the discharge check valves, gate valves and wye fitting. PUMP SCHEDULE:
SUGGESTED SPECIFICATION Furnish and install as shown on plans, a Federal Pump Corporation Type VSS-QD Quick-Disconnect duplex submersible sewage pump unit. The pumps shall be of cast iron construction with non-clog, balanced impellers, and rated as shown in the pump schedule. Each pump shall have Quick-Disconnect fittings including base plate, guide brackets, base elbow and lifting cable. Each pump shall be removable from the pit by riding up the guide rail (4x4 wide flange beam), without disconnecting any piping or electrical connection, and without anyone entering the pit. Pumps shall be re-lowered to their operating position in the same manner. Each motor shall be oil-filled, submersible, protected by a double-sealed oil chamber and shall have a stainless steel shaft and 25-ft. waterproof cable. Motors shall be rated as shown in the pump schedule. Pump control shall be a Type SBS Submers-a-bulb controller, including four mercury tube bulbs on a Style 1 suspension bracket. A NEMA-4 junction box shall be provided together with a control panel in a NEMA-1 wall mounting enclosure, including therein fusible disconnect switches, magnetic starters, HOA selector switches, automatic pump alternator, required relays and transformers, pump-run lights plus alarm bell and silencer with light to indicate high water condition. The control panel shall be of solid-state type with encapsulated plug-in circuit board. Furnish a Style PF-1 angle iron pit frame and steel cover for a concrete pit of the size shown in the pump schedule. The pit cover shall be gas-tight with pump removal plates, flanged openings for discharge pipes (if applicable), manhole with cover, vent connection and control openings. The frame and cover shall have a corrosion-resistant coating plus required brackets for the Quick-Disconnect guide rails. PUMP SCHEDULE:
SUGGESTED SPECIFICATION Furnish and install as shown on plans, a Federal Pump Corporation Type VSS-QD Quick-Disconnect duplex submersible sewage pump unit. The pumps shall be of cast iron construction with non-clog, balanced impellers, and rated as shown in the pump schedule. Each pump shall have Quick-Disconnect fittings including base plate, guide brackets, base elbow and lifting cable. Each pump shall be removable from the pit by riding up the guide rail (4x4 wide flange beam), without disconnecting any piping or electrical connection, and without anyone entering the pit. Pumps shall be re-lowered to their operating position in the same manner. Each motor shall be oil-filled, submersible, protected by a double-sealed oil chamber and shall have a stainless steel shaft and 25-ft. waterproof cable. Motors shall be rated as shown in the pump schedule. Pump control shall be a Type SBS Submers-a-bulb controller, including four mercury tube bulbs on a Style 1 suspension bracket. A NEMA-4 junction box shall be provided together with a control panel in a NEMA-1 wall mounting enclosure, including therein fusible disconnect switches, magnetic starters, HOA selector switches, automatic pump alternator, required relays and transformers, pump-run lights plus alarm bell and silencer with light to indicate high water condition. The control panel shall be of solid-state type with encapsulated plug-in circuit board. The pumps shall discharge thru the side wall of the pit. Furnish a Type Q Access Door (door size as shown in the pump schedule) for installation in the top slab of the concrete pit (pit size as shown in the pump schedule). The access door shall be single-leaf, with steel frame and diamond steel leaf, and have steel hinges and torsion bars for easy opening. The door and frame shall have a corrosion-resistant coating plus required brackets for the Quick-Disconnect guide rails. PUMP SCHEDULE:
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