Specialty / HVAC Tanks

AAtanks specialty tanks are designed to fit the needs of HVAC systems, hot water and cold water systems, boiler systems and for many more applications. Products include buffer tanks, blowdown tanks, flash tanks, glycol makeup packages, chemical pot feeder tanks, primary and secondary headers.

Buffer Tanks

AAtanks manufactures 2 types of buffer tanks: chilled water bufffer tanks (CBT) and hot water buffer tanks (HBT)

CBT Chilled Water Buffer Tanks

Chilled water Buffer Tanks (CBT) are designed for chilled water systems with insufficient water volume capacity, in relation to the chiller capacity. Relatively low water volume systems require additional "buffer" capacity for the system to eliminate problems such as excessive chiller cycling, poor temperature control, and erratic system operation. The properly sized CBT adds the necessary volume to “buffer” the system volume.

CBT Chilled Water Buffer Tank

Download CBT Chilled Water Buffer Tank Submittal Form

HBT Hot Water Buffer Tanks

AAtanks ASME Hot Water Buffer Tanks (HBT) are designed for use with today’s high efficiency systems that incorporate small, modular low-mass boilers. A properly sized AAtanks Hot Water Buffer Tank adds necessary thermal mass to the system to dampen fast transitions and minimize boiler cycling that occurs during zero or low domestic load conditions.

HBT Hot Water Buffer Tank

Download HBT-2 Hot Water Buffer Tank Submittal Form

Download HBT-4 Hot Water Buffer Tank Submittal Form

Buffer Tank Construction:

ASME Construction
Material: Carbon Steel (Optional Stainless Steel (304/316))
Standard Design Pressure: 125 PSI (200 PSI & 250 PSI models available)
Standard Design Temperatures: -20F to 450F
Standard Finish: Red Oxide Prime Painted
Internal Baffle Standard on CBT Tanks
Insulation Available
Interior and Exterior Epoxy Finish Available Upon Request
Custom Designs Available

Blowdown Tanks

AAtanks type BDT boiler blowdown tanks are designed to reduce temperature and pressure of the blowdown discharge from the boiler. This equipment is essential because it is undesirable to discharge the boiler blowdown directly to a sanitary sewer.

BDT Boiler Blowdown Tank

Download BDT Boiler Blowdown Tank Submittal Form

Construction:

ASME Construction
Material: Carbon Steel (Optional Stainless Steel (304/316))
Standard Design Pressure: 125 PSI (200 PSI & 250 PSI models available)
Standard Design Temperatures: -20F to 450F
Standard Finish: Red Oxide Prime Painted
Over 40 Sizes Based on Inlet/Outlet and Venting Design Requirements

Flash Tanks

AAtanks FTA Flash Tanks are designed to allow high-pressure condensate to flash and a reduced pressure steam. This reduced pressure steam is then used to supply heat to a "low" pressure supply main. It can also be used to reduce and cool to low-pressure steam before re-introducing it to the boiler or condensate receiver, or discharge directly from the system. The vessels are available in standard volumes from 13 to 180 gallons. Sparge and drop-leg designs are also available to meet any design condition.

FTA Flash Tank

Download FTA Flash Tank Submittal Form

Construction:

ASME Construction
Material: Carbon Steel (Optional Stainless Steel (304/316))
Standard Design Pressure: 125 PSI (200 PSI & 250 PSI models available)
Standard Design Temperatures: -20F to 450F
Standard Finish: Red Oxide Prime Painted
Custom Designs Available

Glycol Makeup Packages

Glycol makeup packages function by automatically supplying pressurized water, or water/glycol mixture to a closed-loop space heating, chilled water, snowmelt, radiant heating, or process control system. The engineered package is designed to ensure that critical minimum system pressure levels are maintained. AAtanks offers four types of glycol systems, including the Glymatic (single system package), the GMP (single system package), the GMPD (single/dual system package), and the GMPT (twin pump with alternator package).

Glymatic System

AAtanks Glymatic system consists of a free-standing solutions reservoir that contains the glycol/water or water solution at atmospheric pressure. A pressurization assembly is mounted on the solutions reservoir’s high density polymer cover, keeping the pressurization unit off the floor.

GMP 6 or GMP 18 Glycol Makeup Package

Download GMP 6 or GMP 18 Glycol Makeup Package

Simplex System

The AAtanks single system GMP is designed to automatically service one closed-loop system. This GMP-series is available with 50 or 100 gallon reservoir capacities and 1/3 and 1/2-HP pump pressurization control station with magnetic starter.

GMP Simplex Glycol Makeup Package

Download GMP Simplex Glycol Makeup Package

Duplex System

The AAtanks double system GMP is designed to automatically service two separate closed-loop systems. This GMPD-series is available with 50 or 100 gallon reservoir capacities and 1/3 and 1/2-HP pump pressurization control station with magnetic starter.

GMPD Duplex Glycol Makeup Package

Download GMPD Duplex Glycol Makeup Package

Twin System

The AAtanks twin pump system GMP is designed to automatically service one closed-loop system. This GMP-series is available with 50 or 100 gallon reservoir capacities and 1/3 and 1/2-HP pump pressurization control station with magnetic starter.

GMPT Twin Glycol Makeup Package

Download GMPT Twin Glycol Makeup Package

Construction:

non-ASME Construction
Standard Discharge Pressure: up to 70 PSI (higher discharge pressures available)
Standard Design Temperatures: 0F to 160F
Factory Discharge Pressure Setting: 12 PSI

Chemical Pot Feeder Tanks

AAtanks by-pass chemical feed tanks are designed for reliable induction of chemical treatment into a closed loop system. Typically used in hydronic and process piping systems. The tank shall incorporate a chemical fill basin with a minimum dimension of 6" to help facilitate complete introduction of required solutions.

CPFTA Chemical Pot Feeder Tank

Download CPFTA Chemical Pot Feeder Tank Submittal Form

Construction:

ASME or non-ASME Construction
Material: Carbon Steel
Standard Design Pressure: 200 PSI (250 PSI models available)
Standard Design Temperatures: -20F to 450F
Standard Finish: Red Oxide Prime Painted

Primary & Secondary Headers

Primary / Secondary Headers are used in heating and cooling systems that require the primary and secondary loop of their system to be interlocked. The PSA is designed to keep both connected hydraulic circuits completely independent from one another and to provide a means for system air elimination. The PSAV builds on that functionality with the inclusion of Internal coalescence coils in the tank that eliminate entrained air and separate debris associated with start-up and maintenance of the system. As a result, the PSAV replaces the need for an air/dirt separator.