140R3025Q0012_Att1_Specifications.pdf
PDF 133 KB Posted
- Attached to
- Replacement Skimmer & Actuator for HD WWTP Federal contract opportunity
- Solicitation number
- 140R3025Q0012
About this file
This document is a specifications attachment detailing requirements for a replacement rotating skimmer system at the Hoover Dam Wastewater Treatment Plant. The specifications describe a custom-made skimmer consisting of a 9-foot long, 8-inch diameter Schedule 40 steel pipe with a 60-degree opening along the side, coated for corrosion resistance. The pipe requires mounting capabilities at both ends for rotation, with one end serving as a drain and featuring a main gear and worm gear assembly driven by an actuator to rotate 30 degrees in each direction.
The document includes an image showing the deteriorated condition of the existing gears due to corrosion from wastewater and hydrogen sulfide exposure. The government requires replacement of both the existing skimmer and actuator, along with a spare set of gears (specifically the worm gear and bull gear) which require more frequent replacement due to wear. The specifications identify this as a replacement for a 25-year-old system that has deteriorated beyond repair, with the primary function being to remove surface materials from the Clarifier that don't go over the weir, allowing treated wastewater to flow through unimpeded.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Sol_140R3025Q0012.pdf | ||
| 140R3025Q0012_Clauses_Provisions.pdf |
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Text version
A tt ac hm en t 1
S pe ci fi ca ti on s W as te w at er S ki m m er a nd
A ct ua to r fo r H oo ve r D am
P ag e of ac h m en t
S p ec if ic at io n s
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S ki m m er a nd A ct ua to r
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T re at m en t G ro up a t t he H oo ve r D am , L ow er
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R ec la m at io n, D ep ar tm en t o f th e
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S ki m m er , A ct ua to r an d sp ar e pa rt s fo r th e
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W
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T hi s ro ta ti ng s ki m m er w as c us to m
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W T
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-f oo t l on g, -i nc h di am et er
, S ch ed ul e s te el p ip e w it h a
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, w it h w hi ch b ot h en ds w ou ld b e m ou nt ed to r ot at e an d on e si de w ou ld a ct a s a dr ai n.
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T he p ur po se o f th is d ev ic e is to d ra in a ny m at er ia l t ha t r is es to th e su rf ac e of th e
C la ri fi er b ut d oe s no t g o ov er th e w ei r.
I n do in g so
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S ee th e pi ct ur e be lo w
F or th is p ur ch as e, th e go ve rn m en t r eq ui re s re pl ac em en t o f th e ex is ti ng s ki m m er a nd a ct ua to r, a nd al so a s pa re s et o f ge ar s, w hi ch r eq ui re r ep la ce m en t o n a m or e fr eq ue nt b as is
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S pe ci fi ca ti on s W as te w at er S ki m m er a nd
A ct ua to r fo r H oo ve r D am ag e
T hi s pa ge in te nt io na ll y le ft b la nk
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