Precision Storage Vessels Pvt Ltd

Vellimalai, Kanyakumari, Tamil Nadu

ProcessWe use Linear Low Density polyethylene (LLDPE) raw material with density 0.932 to 0.936 mm per cubic cm and MFI range from 3 to 6 per 10 minutes. Raw material that we use has good mechanical strength, high environmental strength , crack resistance, material stability over a wide range of temperate and cycle time. The resin will have a fast and broad cure cycle, provide shrinkage from part to part and exhibit good wrap resistance.

Additives:The LLDPE granules in its original form cannot be process for tank manufacturing in rotational molding. It has to be converted in to color granules. This coloring is takes place with addition of color concentrate during extrusion process. Base raw material is LD. Loading of Colorant If black the percentage of carbon (at least 50%). If Milky white then percentage of titanium. 'Carbon' in black master batch act UV stabilizer therefore it will be added to the level of 2 to 3 % of LLDPE. Other wise tank life during expose to sunlight will be less and tank may develop crack.

Advantages of Rotational Molding:

• One part construction: Virtually stress free parts totally closed or opening.
• Uniform wall thickness,
• Metal inserts as integral parts.
• Product from this process can offer excellent load bearing properties and resistance to stress cracking and corrosion.

Chillers are designed to operate with a minimum water volume, which typically ranges from 22 litre to 38 litres per ton for air conditioning application, for to get better temperature accuracy. Most of the chiller compressors can only start 3 to 4 times per hour. If the compressor is off and if there is a demand for chilled water the compressor cannot get on immediately. Without chilled water, building will not get the required cooling. To solve this problem chilled water buffer vessels are added in the system. These tanks increase the capacity of the chilled water in the system and stabilize the return.

• Tank manufactured as per ASME Standard
• Ring supports
• Internal Baffle
• Air vent
• Insulation and cladding (optional)
• Material A36 (other materials consult factory)Flanged connection (inlet and outlet)
• Manhole (optional)
• Tank will be externally sandblasted to SA 2.5 and then coated with two coats of red oxide primer.
• Horizontal configuration also available
• Manufacturers data report for pressure vessels from U-1A as required by the provisions of ASME code will be furnished for each chilled water buffer tank.
• Standard working pressure 10 bar, Test pressure 15 bar.
• Plate Thickness are in excess to relevant codes