SECTION 033000 - CAST-IN-PLACE CONCRETE

Sludge Treatment Project Engineered Container Retrieval and Transfer System January 2012
c. Motor Housing Fluid: Air.
7. Guide-Rail Supports: Include the following for each sewage pump:
a. Guide Rails: Vertical pipes or structural members, made of stainless steel or other
corrosion-resistant metal, attached to baseplate and basin sidewall or cover.
b. Baseplate: Corrosion-resistant metal plate, attached to basin floor, supporting
guide rails and stationary elbow.
c. Pump Yoke: Motor-mounted or casing-mounted yokes or other attachments for
aligning pump during connection of flanges.
d. Movable Elbow: Pump discharge-elbow fitting with flange, seal, and positioning
device.
e. Stationary Elbow: Fixed discharge-elbow fitting with flange that mates to
movable-elbow flange and support attached to baseplate.
f. Lifting Cable: Stainless steel; attached to pump and cover at manhole.
B. Pump Discharge Piping and Valves: All pipe and fittings shall be either cast or ductile iron
pipe meeting ASTM A48 material specifications. Each pump discharge pipe shall be the same
diameter as the discharge of the pump and shall remain that diameter until it exits the tank. A
common flanged discharge line shall leave the valve box at an elevation specified by on the
engineered drawings. Valves shall be of the non-lubricated eccentric type with an elastomer
covering all seating surfaces. The elastomer shall be suitable for the service intended. Flanged
valves shall be manufactured in accordance with ANSI B16.1 including facing, drilling and
flange thickness. Valve bodies shall be ASTM A-126 Class B cast iron.
1. Valves 3" and larger shall be furnished with a welded-in overlay seat of not less than
90% nickel in accordance with AWWA C507-73. Sprayed, plated or screwed-in seats
are not acceptable. Plugs shall be of ASTM A-536 Grade 65-45-12 in compliance with
AWWA C-504 Section 2.2. The plugs shall be of one-piece construction with PTFE
thrust bearings on the upper and lower bearing journals to reduce torque and prevent dirt
and grit from entering the bearing and seal area.
2. Check Valves: Check valves shall be all iron body, bronze mounted, full opening swing
type. Valve clapper shall swing completely clear of the waterway when valve is full open,
permitting a "full flow" through the valve equal to the nominal pipe diameter. They shall
comply with AWWA standard C-508 latest revision. Check valves shall be rated at 175-
PSI water working pressure, 350-PSI hydrostatic test for structural soundness (2" through
12"). Seat tightness at rated working pressure shall be in accordance with values. shown
in AWWA standard C-500 for gate valves and fully conform to AWWA C-508. Check
valves shall be furnished with 125# ANSI flanged ends.
C. Controls: For each station, a duplex pump control panel shall be provide as per specification
drawings and shall have as a minimum, main disconnect switch, standard motor starters, digital
level control system with submersible level transducer. The panel shall be manufactured in the
USA by a UL698A registered shop and provided with a UL 698A label for Industrial Control
Panels Relating to Hazardous (Classified) Locations. Enclosure shall be UL Type 4X stainless
steel, minimum dimensions with pad-lockable 3 point latch with a swing out inner door and
include the following:
1. A GFCI convenience receptacle shall be provided.
2. Receptacle shall be industrial grade
Contract 44577 KW Annex – Rev. E 44577-CSI-SPEC-001 221329-4