DQ1 2017-0989 Questions and Answers.pdf
PDF 1 MB Posted
- Attached to
- PMAA, 5504, AERATORS
- Solicitation number
- DQ1 PMAA 2017000989 3
- Issued by
- Denver County, Denver City, Colorado
About this file
This is a Questions and Answers document for solicitation DQ1 2017-0989, addressing inquiries regarding pond aeration equipment procurement. The contract requires two (2) separate pond aerator units, each capable of independently aerating up to 12 acres of water. Each unit must include six (6) diffusers, three (3) compressors, and one (1) enclosed cabinet, totaling twelve (12) diffusers, six (6) compressors, and two (2) cabinets across both units. The specification references the Keeton Industries TR6DP model as the basis for performance requirements, which features 1/2 horsepower Gast Rocking Piston compressors, programmable digital timers, and Duraplate membrane diffusers. The systems must operate with both diffusers and lake aeration tubing. Equipment specifications include 100% recycled plastic cabinets with dimensions of approximately 21.50" x 37.50" x 18.50", 275 CFM cooling blowers, adjustable aluminum manifolds, and self-weighted tubing with a 15-year warranty. All components include warranties, with diffusers carrying a lifetime warranty and the complete system backed by a full 2-year warranty.
The procurement follows a competitive bidding process awarding to the lowest responsive bidder meeting specifications, with no geographic preference or sole-source brand requirement. While the bid specifications reference the Keeton Industries TR series model, alternative brands are acceptable provided they meet the identical aerator elements and capability specifications. The contracting agency explicitly confirmed it does not show favoritism toward Colorado companies or local employers within seven miles of the project site. No pricing information, funding sources, or contract term details are provided in this questions and answers document.
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Other files
| File | Type | Posted |
|---|---|---|
| W-9 4_15.pdf | ||
| POTerms&Conditions1-1-09.pdf | ||
| DQ1 2017_0989 Bid Solicitation.pdf | ||
| DQ1 2017_0989 Bid Solicitation REVISED 03.10.17.pdf |
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DQ1 2017-0989 questions and answers
Q: Could you please provide drawings or pictures of requested items?
A: We based the bid off of the attached product type (see last pages of this PDF, for attachment), model TR6DP. We did not seek sole brand justification so we are ok going with a different brand, but it needs to have the same elements and aerator capability/capacity.
Q: Can you show any favoritism to Colorado companies? Specifically primary employers within 7 miles of the project?
A: No, our bid process is set up to award to the lowest bidder who meets the specifications.
Q: With the 2 quantity pond aerators, is it required to have a total of 6 or 12 diffusers, a total of 3 or 6 compressors and total of 1 or 2 enclosed cabinets?
A: We are requesting 2 aerators that are capable of aerating 12 acres of water. If you think of it as each aerator is a separate unit. Each unit should come with 6 diffusers, 3 compressors and a cabinet. That being said we are requesting 2 units/aerators, a total of 12 diffusers, 6 compressors and 2 cabinets.
Q: Are you using diffusers or lake aeration tubing or both?
A: Yes, we are using diffusers and lake aeration tubing.
keetonaquatics.com | 800.493.4831 | 970.568.7754
The Keeton Industries TR series of lake bed aeration systems are the ideal choice for ponds and lakes up to 24 surface acres in size. The TR series superior design is unmatched in energy efficiency, effectiveness and sound reduction. These systems feature 1/2HP Gast Rocking Piston compressors, high volume cooling blowers, programmable digital timers and fully adjustable aluminum manifolds housed in attractive, 100% recycled plastic cabinets. The TR series can operate up to 12 self-cleaning, non-clogging Duraplate™ membrane diffusers. Duraplate diffusers emit millions of tiny bubbles that increase dissolved oxygen levels while eliminating stratification, improving water quality and clarity. Like all of our aeration systems, the TR series are backed by a full 2 year warranty.
The Cabinet
• 100% recycled plastic cabinet
• 20”W x 36”L x 27” T
• 275 cfm cooling blower
• Sound reduction package
• 1” ASTM certified Acoustical Foam
• Programmable digital timer
• (3) 4-valve adjustable aluminum manifold
• 8’ grounded plug
The Compressors
• 1/2 HP Rocking Piston
• 15.9 cfm air flow
• 40psi max pressure
• 115V – 15.9A max, 7.8A average
• Thermal overload protection
• Pressure relief valve
• Intake filter
• Pressure Gauge
The Tubing
• Self-weighted
• 1/2” I.D. with 1/4” sidewalls
• Fishhook resistant
• Will not kink or break
• Available in 100’ and 500’ lengths
• 15 year warranty
The Diffuser
• Self-cleaning
• Non-clogging
• Self-weighted
• Fishhook resistant
• High Oxygen transfer
• Lifetime warranty
Model Features Acres
TR-6DP 6 Diffuser and 3 Compressors 6 - 12 Acres
TR-9DP 9 Diffusers and 3 Compressors 9 - 18 Acres
TR-12DP 12 Diffusers and 3 Compressors 12 - 24 Acres
TR SERIES
UP TO 24 ACRES
keetonaquatics.com | 800.493.4831 | 970.568.7754
TITLE:
DATE: SHEET:
1520 Aquatic Drive
Wellington, Colorado 80549
O: (970) 568-7754
TF: (800) 493-4831
www.keetonaquatics.com
3 HP GAST (MODEL 75R640) ROCKING PISTON COMPRESSOR WITH
AIR OUTPUT OF 13.35 CFM AT 0 PSI, 40 PSI MAXIMUM
CONTINUOUS DUTY OPERATION. COMPRESSOR DRAWS A MAXIMUM
OF 15.9 AMPS @ 115V. COMPRESSOR IS WIRED FOR 115V AND IS
FITTED WITH A DUPLEX WIRING BOX/ PLUG, SERVICING THE
COMPRESSOR AND COOLING FAN.
HIGH-FLOW SQUIRREL CAGE BLOWER, RATED AT 275 CFM FOR CABINET
COOLING. FAN COMES WITH OILABLE BEARINGS AND SCREENED INLET
AND OUTLET OPENING(S).
INTERIOR OF CABINET, FITTED AND GLUED WITH ACOUSTICAL
CONVOLUTED FOAM INSULATION. 1" ASTM RATED C 423-90A, TO THE
NEAREST 0.05 SABINS/FT² WITH A NOISE REDUCTION COEFFICIENT OF
0.40. OSHA APPROVED SOUNDPROOFING AND UL-94 RATING.
MODEL FFP-546-4 ALL ALUMINUM MANIFOLD WITH PRESSURE RELIEF
VALVE, LIQUID-FILLED STAINLESS STEEL PRESSURE GAUGE (0-30 PSI
RATED) AND 4-VALVE MANIFOLD WITH BRASS BARB OUTLETS.
TR QUIET LINE AERATION SYSTEM CABINET MADE OF 100% RECYCLED
PLASTIC WITH THE DIMENSIONS OF 21.50" (L) X 37.50" (W) X 18.50" (H).
CONTROLS 24 HOUR/ 7 DAY DIGITAL TIMESWITCH.
120V, SPST AND SPDT SWITCHING, 1 CHANNEL, 6.3MM X 0.8MM
TAB TERMINAL(S) CONNECTION(S) (COMPLIES WITH DIN 46244).
(4-8) AIR OUTLET LINES FROM COMPRESSOR THROUGH CABINET
WITH 12" 220 PSI RATED FLEXIBLE BRAIDED VINYL TUBING. EACH
FLEXIBLE TUBING OUTLET SHALL BE 4'-0" LONG AND FITTED WITH 12"
ID BARB CONNECTS. ALL AERATION SYSTEMS SHALL BE FURNISHED
WITH STAINLESS STEEL 1/2" WORMDRIVE CLAMPS TO FIT 5
16 " - 12" HOSE,
MODEL 67-06-1 TO CONNECT ON SHORE AND TO DURAPLATE(S)
(DDP-9) IN LAKE.
CABINET IS CONSTRUCTED
WITH (4) LEGS THAT CAN BE
BOLTED TO A CONCRETE SLAB
(39" (L) X 39" (W) X 4" (H)).
SYSTEM COMES WITH 8' 120V
(14-3) HEAVY DUTY WIRING
CORD WITH PLUG END.
TR QUIET LINE AERATION SYSTEM CABINET MADE OF 100%
RECYCLED PLASTIC WITH THE DIMENSIONS OF 21.50" (L) X 37.50" (W)
X 18.50" (H). CABINET LID COVER SECURED WITH PIANO HINGE
(BACK) AND LOCKABLE HASP (FRONT).
AIR FILTER ASSEMBLY (AC432) AND FILTER ELEMENT (AC393)
120V OUTLET
37.50”
TR
7-30-13
.5
39.50
37.50
(12)
TR SERIES
UP TO 24 ACRES
| DQ1 2017-0989 Q and A1 |
| Aerator pics |
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