Indirect Heated Storage calorifiers are one of the easiest method of generating hot water for both domestic and industrial applications. Storage calorifiers are installed in hospitals, hotels, sports centers and general residential buildings. PRECISION Calorifiers can be used in sites where a dedicated plant producing steam for laundry or hot water boiler is available.

Storage Calorifier

Storage calorifers are sized to meet the peak demand period with recovery periods varying from one to four hours.

Advantages

• Electric power is not required, hence no big investments in Transformer etc.
• Heating coil duty is high.
• No frequent shutdown due to short circuit etc.
• No need of higher inventory electric spares.

ASME Code construction:- All tanks are constructed in accordance with ASME code section IV.Stamped and labeled for 125 PSI (8.6 BAR) Standard. Precision also design High Capacity Water Heaters / Calorifiers as per British Standard BS 853:1996 or BS 5500:1997 or in accordance with Art 3.3 of the European Directive EEC/97/23 for pressure equipment. Hot Water Indirect KW Shell Material Configuration Capacity.

Copper Coat

Internally surfaces are first grit blasted and cleaned to a white metal finish and then, 100% pure solid copper is sprayed (by metallization process) uniformly in the tank. Once the tank surface is cooled, two coat of precision coat (polymerized coating) is applied to all internal surfaces above the copper coated tank. The tank are then forced cured at 95°C to form a glossy lining unaffected by thermal shock from 6°C to 100°C.

Precision coat is approved by US department of agriculture and with NSF/61 certification for drinking water.

Standard – Shells

Steel SA516 Gr-70
Coating FDA approved Precision coat material

Copper lined vessel

It is uneconomical to manufacture pressure vessel with copper. To make it economical pressure vessels are Manufactured in carbon steel, as per required thickness and then lined with Copper sheets. Precision use 1.2 to 1.6 mm (above 5000 liter 1.6 mm) thick copper sheet which are tack welded to carbon steel shell and Further pulled back by vacuum, so that copper sheet is intact with carbon steel shell. Anti vacuum valve is fitted with all copper lined shells as standard to prevent vacuum (partial /full) that occurs during drain or due to unusual operating conditions..

Standard – Shells

Steel SA516 Gr-70
Copper BS2870-C106

Direct Oil / Gas Fired water heaters are the best solution where fuel fired hot water system can be used. Wide range output can be achieved in this water heaters. Fully automatic burners are used for safe operation.

Advantages

• Efficiency is maintained throughout the range of load.Even at part load all energy is converted into heat.
• Space requirements are minimum.
• Separate boiler not required.
• Installation is simplified.
• The calorifier can be installed with minimum electric load.
• Maintenance is kept to a minimum.
• Low nox burners are used.
• Fuel efficient burners are used.
• Diesel oil, Natural Gas, LPG and Propane can be used.
• Can also be used with solar or heat pump system where oil or gas fired system can be considered as a backup.

Water heaters are fitted with removable type fire tube heat exchanger. These heat exchangers are made of carbon steel tubes and coated with specially formulated coating material to withstand high temperature.

Burner

Mono block pressure jet fully automatic oil / gas fired burners are used to heat the water. Depend on recovery, burners can be selected either on / off type or full modulation type. Burners will be highlyfuel efficient and with low nox capabilities.

Gas Fired Burner

• Energy Saving and compatible with environmental requirements
• Quiet in operation and designed for easy maintenance
• Designed and approvaed in accordance with the European Standard EN676
• Plug – in contact facilities the installation
• Hinged flange
• Designed for one stage, two stage, or modulating operation
• Available for natural gas, LPG, town gas, biogas.

Oil Fired Burner

• Energy Saving and compatible with environmental requirements
• Quiet in operation and designed for easy maintenance
• Reliable and trouble – free
• Designed and approved in accordance with the European Standard EN267
• Suitable for high resistance boilers
• Industry standard components easily available
• Designed for on / off and high/low operation
• Plug-in contact facilities the installation
• With hydraulic air adjustment
• Fuel – Light distllate oil Class D (1.5-5.5 cSt@40°C)