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BUFFER TANKS FOR CHILLED & HEATING WATER CIRCUITS

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BUFFER TANKS FOR CHILLED & HEATING WATER CIRCUITS

AQUAZONE BUFFER TANKS FOR CHILLED WATERAn Aquazone buffer tank is often incorporated into a chilled water system that has insufficient water volume throughout the piping network in relation to the chiller capacity. By adding a buffer tank to the system, extra volume is created which provides additional “buffer” capacity and eliminates the problems such as excessive compressor cycling, poor temperature control and erratic system operation.

In some instances when a large building is undergoing refurbishments or extensions,, the capital expenditure of a larger chiller can be deferred, by installing large buffer tanks and utilizing the existing chiller. These tanks are insulated so that the stored water maintains it’s chilled temperature. This allows the tank to charge up during off peak periods, thus reducing the chillers work load during peak periods throughout the next day.

With the addition of sparge pipes and baffles the Aquazone tanks can be used as Thermal Energy Storage Tanks. As a storage system the Aquazone tank allows the chiller to operate at off-peak times of the day providing the Facility Manager with an effective strategy for energy cost reductions.

Aquazone tanks can also be utilized in heating water systems. Refer to our Sales Department for further information.

WHY USE A AQUAZONE BUFFER TANK?• Pre-insulated Aquazone tanks to the BCA - Section J

• All Aquazone tanks have Zero Ozone Depletion Potential

• They are aesthetically pleasing in any plant room, as they come standard with Stainless Steel/ Aluminium/ Cladding

• Due to the cladding there is no need to paint them, thus providing a low maintenance exterior.

• Are suitable for indoor and outdoor situations.

• Available in various materials and pressure ratings.

THERMAL TANKSAquazone tanks can be provided with internal spargepipes so that incoming liquid is dispersed evenlythroughout the tank. The resulting temperaturestratification coupled with correctly sized insulationprovides an effective Thermal energy Storage Tank for use in chilled and heating water applications.

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STANDARD AND CUSTOM MADE STORAGE SOLUTIONS TO SUIT YOUR APPLICATION

Note: This model is for illustration purposes only. All the components detailed above would normally be used on the same tank.The intended function of the tank and overall design of the system will dictate the components within the tank.

Refer to our Sales department for further information.

Automatic Air Vent

Certified Lifting Lugs

Metallic/ HDPE top cover

Closed Cell, Cross Linked, PolyethyleneInsulation. Thickness compliant with the“R-value” stipulated in the BCA-Section J.

Material of Construction(Mild steel, Stainless steel & Duplex Stainless

steel)

Metallic cladding Aluminium or Stainless steel unless specified

otherwise.

AQUAZONE tanks are constructed,inspected and tested to AS1210 Pressure

Vessel Standard.

Sparge pipe arrangements to promote stratification

Pressure Gauge

Safety Relief Valve

Baffle arrangements(both horizontal and vertical)

to create serpentine flow

Flanged Inlet & OutletsBoth DIN PN16 & AS2129 TABLE E & PN25/PN40 for

higher pressures. (Can be sized according to your

system requirements)

Sacrificial Annodes (Cathodic Protection System)

Name plateDrain

Temperature Gauge

Headhole/ Manhole as perAS1210

Inspection opening according to AS1210 Table 3.20.4

Masterflow reserve the right to make changes without notice.

BUFFER TANK SPECIFICATIONS AND ACCESSORIES

CalorifierStorage vessel that has the capacity to generate heat within a mass of stored water. The stored water within the calorifier is heated as it circulates around heated coils which is generally connected to a heating source such as a boiler within a closed circuit.

Expansion VesselExpansion Vessels absorb the impact ofwater hammer and maintain systempressure below piping & equipment limits as they accommodate expansion volume that occurs due to temperature fluctuations.

Stainless Steel TanksTanks can also be constructed usingStainless Steel 316, Stainless Steel 304 and Duplex Stainless Steel.

Servicing Australia & New Zealand Head Office +612 9748 2022

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10000 AVBT10000 NB200 2170 2330 3770Your Size AVBT##### NB###

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4500 AHBT4500 NB200 1800 2650 21307000 AHBT7000 NB200 1950 3320 2280

10000 AHBT10000 NB200 2170 3700 250016000 AHBT16000 NB200 2170 4900 250020000 AHBT20000 NB200 2170 6800 2500

Your Size AHBT##### NB###Please Note: All sizes can vary. Always confirm with Sales Office

*These dimensions are with insulation.

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Standard Vertical Aquazone Buffer Tank

Standard Horizontal Aquazone Buffer Tank

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