TRAILER MOUNTED 6000 PSI BREATHING AIR COMPRESSOR SYSTEM

SEALED BID CITY OF MOBILE
; . Purchasing Department

Do Not Return Via Email or Fax and Package Delivery:

. Bid Delivery Address:
Mailing Address:
P. O. Box 1948 Government Plaza
Mobile, Alabama 36633 4th Floor, Room S-408
(251) 208-7434 205 Government St.

Mobile, Alabama 36644

Postal Service Does Not Deliver to This Street Address

BID SHEET

This is Not an Order

READ TERMS AND CONDITIONS
ON REVERSE SIDE OF THIS PAGE
BEFORE BIDDING

Typed by: sy Buyer: 004
Please quote the lowest price at which you will furnish the articles listed below
BID NO. DEPARTMENT Commodities to be delivered F.0.B. Mobile to:
04/16/2026 6044 VARIOUS TO BE SPECIFIED

This bid must be received and stamped by the Purchasing office not later than:

12:01 P.M. TUESDAY, MAY 5, 2026

QUANTITY

Bid on this form ONLY. Make no changes on this form. Attach
ARTICLES any additional information required to this form.

UNITPRICE | EXTENSION

INIT
ul Dollars |Cents| Dollars | Cents

Approx
1-2

TRAILER MOUNTED 6000 PSI BREATHING AIR COMPRESSOR SYSTEM

TRAILER MAKE.

COMPRESSOR MODEL.

Upon award, the City will purchase Approximately one (1)- two (2) Trailer
Mounted 6000 PSI Breathing Air Compressor System

Provide literature and specifications on product bid.

Quote delivered pricing FOB MOBILE.

Page 1 of 3

TOTAL

RETURN ONE SIGNED COPY OF THIS BID

IN ENCLOSED ENVELOPE

Phone Number
Email Address

Firm Name

State delivery time within days of receipt of P.O.

Signature

Type or Print Name

BID CONTINUATION SHEET
P. 02 03
age __-"_ of.
Bid on this form ONLY. Make no changes on this form. Additional UNIT PRICE EXTENSION
quantity] ARTICLES ji ion to be submitted on separate sheet and attached hereto. | UN'T | ~Doltars [Cents] Dollars | Cents

Page 2 of 3

City of Mobile Business License Required - See Item 14
(on reverse side).

All vendors will be required to provide verification of
enrollment in the E-Verify program. Additional information
may be found at http://immigration.alabama.gov!

If the successful vendor's principal place of business is out-of-state,
vendor may be required to have a Certificate of Authority to do business
in the State of Alabama from the Secretary of State prior to issuance of a
Purchase Order.

Vendors are solely responsible for consulting with the Secretary of State
to determine whether a Certificate is required.

See: www.sos.alabama.gov/BusinessServices/ForeignCorps.aspx.
Please note that the time between application for the issuance of a
Certificate of Authority may be several weeks.

Upon notification, vendor will have 10 business days to provide the
Certificate of Authority and the E-Verify numbers to the

Purchasing Department before award can be completed.

(Vendors will possibly need to pay the expedite fee to meet this
requirement because application is not sufficient. We must have a copy
of the certificate with your Company ID number).

Vendors do not need a City of Mobile Business License or Certificate

of Authority from the Alabama Secretary of State, nor the E-Verify for
certification to submit a bid, but will need to obtain the Business License
and Certificate of Authority verification and/or provide the E-Verify
Certification, if applicable, prior to issuance of a Purchase Order.

Pricing to be firm for a six (6) month period following the award of this
bid.

State of Alabama Local Vendor Preference Law 41-16-50 (a) and (d) will
apply to this purchase.

This Bid is for only the work that is specified and listed in this bid
package. No additional work will be allowed without written
instructions and permission of the Purchasing Agent of the City of
Mobile.

TOTAL

RETURN ONE SIGNED COPY OF THIS QUOTATION
IN ENCLOSED ENVELOPE Firm Name

READ ABOVE INSTRUCTIONS BEFORE QUOTING

By

BID CONTINUATION SHEET 03

Page_03 of __03 __

ic Bid on this form ONLY. Make no changes on this form. Additional UNIT PRICE EXTENSION
nTITY| AR unit |---__ --
ual TICLES -_intormation to be submitted on separate sheet and attached hereto. wl Dollars [Cents] Dollars | Cents

Page 3 of 3

Any questions or problems, contact the City of Mobile Purchasing
Department at 251-208-7434 or purchasing@cityofmobile.org..

No employee of the City, mechanic, mechanic supervisor, firefighter,
captain, chief, fire mechanic, fire mechanic supervisor has the authority
or permission to authorize any additional work or service

that increases the cost of the purchase order. Only the Purchasing
Agent can authorize any additional work or additional expense to the
City of Mobile.

All Changes must be done in writing and can only be issued by the
Purchasing Agent.

Successful bidder will have sufficient competence and capacity to complete the
work required in a timely and professional manner. City has the discretion to
make additional inquiries or require additional documentation of any bidder's
fitness to perform the work, and may, in its sole discretion, reject any bidder as
not sufficiently responsible to perform the work. Such inquiries may include
consideration of previous work the bidder may have done for the City that the
City considers to have been significantly deficient.

CONE OF SILENCE. From the time of advertising, and until the final award
by completion of a signed contract or purchase document issued by the City,
there is a prohibition on communication by respondents (or anyone on their
behalf) with the City staff and elected officials regarding this request for bids,
proposals, or qualifications. This does not apply to communications directly
with the Procurement Department staff during authorized question periods, or
with designated City staff during pre-bid conferences, interviews, requests for
clarification, and written contract negotiations. Breaking the established
prohibition on communication, if proven, may result in a disqualification of
your submittal.

THE ABOVE TO BE AWARDED ALL OR NONE.

TOTAL

RETURN ONE SIGNED COPY OF THIS QUOTATION READ ABOVE INSTRUCTIONS BEFORE QUOTING
IN ENCLOSED ENVELOPE Firm Name

By

TRAILER MOUNTED 6000 PSI BREATHING AIR
COMPRESSOR SYSTEM

COMPRESSOR:

Specification for a high-pressure compressor and purification system to supply
breathing air that meets or exceeds the requirements of CGA Pamphlet G-7,
Compressed Air for Human Respiration, the requirements of ANSI/CGA G-7.1,
Commodity Specification for Air, Grade E, and all other recognized standards
for respirable air. The compressor and the purification system shall be designed
and produced by the same Manufacturer. The Manufacturer shall operate under a
Quality Management System which complies with the requirements of ISO
9001:2015 for the design, manufacture, inspection, test, and service of air & gas
compressors and associated spare parts for commercial and military applications.
The system shall be designed for a maximum working pressure of 6,000 PSIG.
All equipment shall be new and of current design and manufacture. Used or
refurbished equipment is unacceptable. Specifications are subject to change
without notice.

Open Vertical 6000 PSI SERVICE

The system shall be supplied on a vertical steel frame designed for both the static
and dynamic loads of the system and of sufficient size to adequately
accommodate all of the system's components. The integral base helps eliminate
guesswork and insure correct placement / installation allowing for unrestricted
cooling airflow to the compressor and prime mover, and providing access for
operation and maintenance.

All piping and tubing shall be properly supported and protected to prevent damage
from vibration during shipment, operation, or maintenance. Piping and tubing
shall be installed in a neat and orderly arrangement, adapting to the contours of
the system. All instrument tubing shall be either 300 series stainless steel or
pressure rated hose.

The system shall be warranted free from defects in material and workmanship for
a period of twenty four months from date of shipment or twelve months from
date of start-up, whichever expires first. The warranty shall not impose
limitations on the system's accumulated operating hours during the warranty
period.

Performance Table

Charging Air
. FAD | Rate? Purificatio | Processing
Electrical | SCFM HP | RPMI] Block n System| Capability"
SCF (cu ft)
M
E1/dual drive 8.1 9.7 7.5 | 1180 |K12.14 II P2S 67,000

2 Based on standard inlet conditions.
3 Based on recharging an 80 cu ft cylinder from 500 to 3000 PSIG.
4 Based on an inlet temperature of 68 degreesF.

Compressor

The compressor shall be an air-cooled, oil lubricated, four stage, three cylinder,
reciprocating compressor. The 3" stage and most importantly the final stage of
compression shall be of a single acting design. The crankcase shall be cast of
aluminum magnesium alloy and engineered for superior strength, reduced
weight, and exceptional heat rejection. In addition, it shall offer a generous 2.96
quart oil capacity. The crankshaft shall be of a single piece Nodular Graphite Iron
construction and supported in the crankcase by two long-life roller bearings. The
connecting rods shall be of single piece design with stages one and two being of
a high strength aluminum alloy construction and the third/final stage being of
forged steel construction. Each connecting rod shall incorporate a roller bearing
at the crank end and needle bearing at the pin end. The pistons shall be
constructed of an aluminum alloy. Piston rings on the second and third stage are
of cast iron; first and fourth stage rings shall be of a high strength polymide. The
final stage shall incorporate a ringed, free-floating, aluminum piston, which is
driven by a guide piston and third stage discharge pressure. The cylinders shall
be of cast iron construction with deep cooling fins on the external surface for
optimum heat dissipation. The cylinders shall be arranged in a dynamically
balanced, "W" configuration with each cylinder located directly in the cooling
fan's blast. The cylinders shall be removable from the crankcase. The
compressor's flywheel shall be cast iron. A multi-wing, high velocity cooling fan
shall be integral to the flywheel - no auxiliary cooling fan(s) shall be necessary.

Inter-stage pressures shall be monitored via mounted pressure gauges.

An intercooler shall be provided after each stage of compression, and an
aftercooler shall be provided after the final stage of compression. The coolers
shall be individually detachable from the compressor, located directly in the
cooling fan's blast and made of stainless steel. The aftercooler shall be designed
to cool the discharge air to within 18 degreesF of ambient temperature. A cool-down
cycle shall not be required prior to stopping the compressor.

A separator shall be supplied after each stage of compression, excluding the first
stage, and a coalescing separator shall be supplied at the discharge of the
compressor. A unique "zero loss" automatic condensate drain (ACD) system shall
be supplied for all of the separators. The system shall purge the separators on a
timed event, approximately every fifteen minutes yet significantly decrease the
interstage and final separator pressure drop as found on other brands. The reduction
in pressure loss shall allow the compressor to reach maximum operating pressure
quicker.

Additionally, during the blow down cycle, radiant noise levels shall be
significantly reduced and tubing to the ACD manifold and collection reservoir
are significantly reduced. The ACD system shall unload the compressor on
shutdown for unloaded restart. An exhaust muffler and condensate reservoir
shall be supplied. Manually operated valves shall be supplied to override the
automatic operation of the ACD system for test and maintenance purposes.

The compressor shall be lubricated by a low-pressure lubrication system. The
final stage of compression shall be lubricated by a pressurized lubrication circuit.
The other stages and the driving gear shall be splash lubricated. The low-pressure
lubrication circuit shall include a positive displacement low-pressure oil pump,
gear driven by the crankshaft, a non-adjustable oil pressure regulator, and full-
flow replaceable cartridge type oil filter element. Two highly visible sight glasses
shall be included to check the oil level; one on each side of the crankcase. The
oil drain for the compressor shall be extended to the outside of the frame to ease
fluid draining.

The compressor shall be equipped with an inlet filter with replaceable particulate
element.

Prime Mover and V-Belt Drive

The three-phase electric motor shall be of the T.E.F.C. (Totally Enclosed Fan
Cooled) design and the single-phase shall be of O.D.P. (Open Drip Proof) design.
The motor voltage, phase and frequency shall be specified by the purchaser. The
compressor and motor shall be mounted on a common frame. The compressor
and motor shall be arranged in a vertical design. Power from the motor shall be
transmitted to the compressor by a v-belt drive. The v-belt drive shall be designed
to tighten the drive belts automatically. Rotation arrows shall be affixed in a
conspicuous place on the compressor.

Electrical Control & Instrumentation

The compressor control panel (CCP) shall include an across-the-line magnetic
motor starter, industrial power supply and PLC controller. The CCP shall be built
in accordance with UL 508A, the standard for Industrial Control Panels and shall
be affixed with a UL label.

The PLC compressor control system consists of a programmable logic controller
for the monitoring, protection and control of the compressor systems.

Standard features of the CCP include:

- ANEMA type 4 electrical enclosure
- UL electrical panel
- Human Machine Interface (HMI) with 4-Line Back Lit Text Display and

Emergency Stop.

Home screen customizable with distributor contact information

Real Time Clock (time and date)

Compressor on / off

Digital Display of Compressor Final Pressure

Digital Display of Compressor Oil Pressure

Digital Display of current Compressor Run Time

Digital Display of Final Separator Cycle Count

Compressor High Temperature Shutdown and Alarm

Full support of the Automatic Condensate Drain system (interval and
duration set points adjustable thru the HMI - password protected)

- Digital Display of time to next ACD Cycle

- Condensate Drain Reservoir full alarm

Full support of CO monitor alarm functions

Full support of SECURUS or equal purification system moisture monitor
warning and alarm functions

Built in overtime timer set at 5 hours - optional times available
Maintenance Timer (selectable between real time or compressor run time) to
give Digital Display of all needed Preventative Maintenance Evolutions
Motor overload alarm

Nonresettable hourmeter

Recoverable Run History (last 5 run periods)

Recoverable Alarm History (last 5 fault shutdowns)

Operator choice of display in BAR or PSI for ease of Maintenance

Repair:

PLC has removable Terminal Blocks for all functions
Diagnostic EEPROM (Electrically Erasable Programmable Read-Only Memory)
Capability
Support of Two (2) Communication Protocols
o Ethernet Connection
o Analog Phone Modem
Wiring shall be encapsulated within a split corrugated type loom.
Each wire end connection shall be machine crimped and numbered.

The HMI shall have 22 adjustable system parameters secured by password
protection. The HMI will provide display of all safety / fault shutdowns with a
scrolling text of up to three potential causes for the fault / shutdown.

The compressor oil pressure shall be monitored by a pressure transmitter and
digitally displayed on the HMI. The compressor shall shut down and a fault will be
indicated on the HMI should the compressor's oil pressure drop below the factory
preset value during operation. The oil pressure transmitter shall be by-passed during
start-up to permit the oil pump to achieve the normal operating pressure.

The low oil pressure and final air pressure transmitters shall be equipped with sealed
electrical connectors. The analog pressure sensors for oil pressure and final pressure
shall have adjustable set point and dead-band thru the HMI (password protected).

A temperature switch shall be supplied on the head of the final stage of compression.
The compressor shall shutdown and a fault will be indicated on the HMI should the
final stage temperature exceed the tamper-proof set point during operation.

Purification System

The purification system shall purify high pressure air to a quality that meets or
exceeds the requirements of CGA Pamphlet G-7, Compressed Air for Human
Respiration, ANSI/CGA G-7.1, Commodity Specification for Air, Grade E, and all
other recognized standards for breathing air. Purification shall be achieved by
mechanical separation of condensed oil and water droplets, adsorption of vaporous
water by a desiccant, adsorption of oil vapor and elimination of noxious odors by
activated carbon and conversion of carbon monoxide to respirable levels of carbon
dioxide by catalyst.

The high-pressure purification chamber shall have a working pressure of 6000 PSIG
with a 4:1 safety factor. The purification system shall utilize a replaceable cartridge.
The purification system shall be designed so that the replacement of the cartridge
can be accomplished without disconnecting system piping. The design of the
chamber shall preclude the possibility of operating the system without a cartridge
installed or with an improperly installed cartridge. A bleed valve shall be provided
to vent the purification system to facilitate replacing the cartridge. A pressure
maintaining valve and a check valve shall be supplied downstream of the purification
system to increase the efficiency of the purification system by maintaining a positive
back pressure. A check valve shall be supplied between the coalescing separator on
the compressor's discharge line and the purification system to maintain the positive
pressure in the purification system when the compressor shuts down.
6

Bauer P2S or equal purification shall process an average of 67,000 cu ft of air to
Grade E Standards at standard atmospheric conditions.

Testing and Preparation for Shipment

The system shall be tested by the manufacturer prior to shipment. A copy of the

manufacturer's
test report shall be available upon request.

A manufacturer's nameplate shall be securely affixed to the inside of the electrical
box. The nameplate shall include, at a minimum, manufacturer's name, model
number and serial number, compressor block number, voltage, frequency and date
of manufacture.
Offered with the compressor system are the following:

e Automatic condensate drain system,

e Inter-Stage- Gauges

e Electronic carbon monoxide monitor with calibration kit