Precision Storage Vessels Pvt Ltd Vellimalai, Kanyakumari, Tamil Nadu

Surge Vessel A surge tank is a vessel that is used to absorb the sudden change of pressure in the system as well as to provide extra water during brief drop in pressure. Specifications: Design Standards              -           ASME Section VIII Div I Working Pressure              -           up to 70 bar Volume                            -           100 litres to 100,000 litres Material                           -           SA516 GR 70 or A36 Painting Tanks are externally sand blasted to SA 2.5 and then coated with one coat of red oxide and one coat with blue enamel paint. Standard ASME Code Construction: All tanks are constructed in accordance with ASME Code Section VIII Div. 1 stamped and labelled for 150 PSI as standard. Non ASME standard tanks also available. Bladder Precision surge vessel are fitted with heavy duty replaceable Butyl Rubber Bladder.

Material : SA 516 GR 70 Or A 36

Materials Carbon Steel Stainless Steel Other Materials Upon Request    End Connections Flat Faced Raised Face Butt weld Features Filtration Down to 40 Microns Large Diffuser Screens Long and Short Neck Versions Available Fabricated Construction Sizes Ranges Size - 10” - 24” Size - 250mm - 600mm Long and Short Neck Versions Available Fabricated Construction Fabricated - Custom sized to meet requirements Ratings ASME Class 150 ASME Class 300 Applicable Codes Designed and manufactured in accordance with  ASMEB31.1, ASME B31.3 and/or ASME Section VIII, Div.1 CRN available in all Provinces Welders certified to ASME

Three Pass Wet Back Rugged Construction, Factory tested for optimum efficiency. Built in accordance with ASME Code. Proven three pass conventional wet back design for longer life cycles.   All our boilers are tested and inspected by HSB / Lloyds Register at all stages of manufacture.   Plate thickness of Isaac Boilers are in excess to ASME Code requirements.   All boilers are subjected to X Ray and NDT tests of the main weld seams.   High temperature ceramic wool insulation used.   ·         Low Nox emissions. ·         Easy access. ·         Bigger Furnace. ·         Higher heating surface. ·         Standard boilers working pressure 10 bar (upto 20 bar available)   Operation and maintenance manual, manufacturing report, electrical wiring diagrams, technical details of all valves, controls and other accessories are given to the customer at the time of delivery.

Type : Steam Boiler

Certification : ASME Standards

Fuel : LPG / OIl

Capacity : 1000 Kg/hr - 18000 Kg/ Hr

Pressure : 10 Bar

PVC Pressure pipes as manufactured as per IS 4985-2000 , DIN 8062 standards for irrigation sewage water and plumbing pipes with Sizes from 20 mm to 110 mm. We have independent lab facility with all testing instrument to test the pipe manufactured.Our Process ; In first stage of the extruder the powder is subjected to relatively high mechanical forces which are intended to reduce the pvc grains clusters .The rate at which this process occurs depends upon the temperature & lubricant balance. The internal lubricant will tend to encourage the breakup of the grain by weakening the bonds between the primary particlesThe external lubricant reduces the frictional heat & therefore reduces this mechanism. As the material passes further down the extruder barrel the temperature increases which reduces the bond strength between the molecules within the primary particles. Ultimately a homogeneous mass of molten plastics form.Unique features of our pipes are Non Toxic, Smooth inside bore, Non biodegradable, flexible.    Wall thickness exceeds the requirements of related standards.

Material : PVC

Thickness : 10-20mm

Color : Black, Blue, Grey, White

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.  

Material : LLDPE

Application : Water Storage

Color : Black, Off White, White, Blue

Feature : Heat Resistance, High Storage, Rust Proof

Capacity : 0-500ltr, 1000-2000ltr

Height : 0-5ft

Precision manufactures Standard Velocity Inline Air Separator and High Velocity Inline Air Separators with sizes from 2” to 36”. Maximum optimal flow range for standard series is 14906 GPM and for High velocity series Maximum optimal flow range is 33466 GPM. Precision In Line Air Separator are designed to eliminate air associated with any hydronic system. Inline Air Separators are designed and manufactured as per ASME Section VIII Div I and registered with National Board of Boiler and Pressure Vessel inspectors. Material of construction will be carbon steel. Connections are flanged to Class 150, Class 300, PN16 or PN25. External surface will be coated with red oxide primer and with one coat red enamel paint. Standard working pressure will be 10 bar. Designs up to 30 bar available on request.Each Inline Air Separator to be fixed with air vent. A tap is fitted on body top to facilitate system fast fill removal of floating impurities and air trapped within the air separator.ApplicationPrecision Inline Air Separator removes entrained air bubbles in the system. Small air bubble coalesce and form larger air bubbles which rise to the top of the vessel and vented through the air vent. Dirt particles that are collected at the bottom of the separator can be removed through the blow down valve. Precision inline air separators provide higher efficiency with reduced pressure drops so a smaller pump can be used to achieve maximum efficiency.

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 CalorifierStorage 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 IVStamped 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.Vessel Lining – Precision CoatPrecision coat is a polymerized coating which is applied to all internal surfaces of the tank. Tank surfaces are first sandblasted and cleaned to a white metal finish and then precision coat is applied uniformly. The tank is then forced cured at 95ºC to form a glossy lining unaffected by thermal shock from -6ºC to 100ºC. Precision coat is approved by US department of agriculture and with NSF/61 certification for drinking water.For steam and condensate the battery is a simple 2-pass U-tube battery. Heater batteries are constructed from finned tube. This extended surface reduces the overall size of the battery. Plain tube can be supplied and should be specified at the enquiry or order stage so that provision is made for fitting the larger battery. Plain tube will be recommended when the operating conditions are known to make it advisable.

Electric calorifiers are one of the easiest method of generating hot water for both domestic and industrial applications. Electric calorifiers are installed in hospitals, hotels, Sports Centres and General Residential Buildings.StandardsASME Code construction:- All tanks are constructed in accordance with ASME code section IV Stamped and labeled for 125 PSI (8.6 BAR) as Standard. Precision also design electric calorifiers as per British Standard BS 853:1996, BS 5500:1997 or in accordance with Art 3.3 of the European Directive EEC/97/23 for pressure equipment.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 fuel storage tanks are not required Installation is simplified The calorifier can be installed directly with the power supply Maintenance is kept to a minimum. Electric calorifiers are clean Electric calorifiers are extremely quiet Precision CoatPrecision coat is a polymerized coating which is applied to all internal surfaces of the tank. Tank surfaces are first sandblasted and cleaned to a white metal finish and then precision coat is applied uniformly. The tanks are then forced cured at 95°C to form a glossy lining unaffected by thermal shock from -6°C to 80°C. Precision coat is approved by US department of agriculture and with NSF/61 certification for drinking water.Standard – ShellsSteel SA516 Gr-70Coating FDA approved Precision coat materialHeating Element ( Howden UK)Heaters can be designed to operate in 3-phase, 415 volts, 50 HZ / 60 HZ supply. Precision uses two types of commonly used heating elements namely replaceable element and removable core element.Replaceable TypeThe elements on this type of immersion heater can be changed only after draining contents in the water heater.Removable Core TypeFailed elements can be changed without draining the calorifier or removing the immersion heater from the shell. This saves time in changing the defective elements and with less down time. By this we can save the heated water without draining it.MaterialsHeating elements are available in copper, incoloy or Incoloy 825 which are suitable for any water conditions.

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.BurnerMono 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)

Fabricated tee strainers are widely used when standard strainers cannot meet exact piping requirements. Standard units are fabricated as per ASME Section VIII Div I Standards.Features Suitable for Horizontal or vertical installations through bolt cover is standard Stainless Steel perforated screens as standard End connection can be Buttweld end or Flanged Medium Steam Liquid Gas and Oil Applications Waste Water Mining Process Equipment Power Industry Standard EquipmentFabricated tee strainer are manufactured in carbon steel A234 Grade. Tee strainers can also be manufactured in stainless steel or other alloy steel as per requirements.

Fabricated simplex basket strainer are generally made of steel. These strainers can be made in materials like carbon steel or stainless steel based on project requirements. Basket strainers has a flat top. Basket strainer design maintains low pressure drops. Fabricated simplex strainers weighs less compared to cast iron strainers. Major advantages of basket strainers are without dismantling the pipeline connections, strainer basket can be remove by unbolting the top flange bolts. Optionally an on/off back flush valve can be installed at the bottom of strainer which can be opened when huge amount of debris gets settled at the bottom of strainer.Standard Equipments Material A36 Fabricated basket strainer are manufactured as per ASME standard Channel support with 4 legs Flanges to PN16 Class 150, Class 300 Working pressure up to 30 bar Connection size 2” to 36” Flanged or butt weld Screen material stainless steel Body flange forged steel A105 Inlet/outlet connection flange forged steel A105 Bolt carbon steel Nuts carbon steel Vent and drain connection standard top. Bigger sizes with Davit assembly

Expansion tanks are used in a closed loop heating or chilled water HVSC system to absorb the expanding water and to control the pressure in the system. Expansion tanks are fitted with a replaceable type heavy duty butyl bladder which absorbs the expanded water thus avoiding direct water contact with the metal tank.Specifications : Designed and manufactured as per ASME Section VIII DIV I Replaceable bladder design Vertical configuration with ring support Easy to install Factory recharge Pressure – 0.83 bar Maximum Operating Temperature 115° C

Size : 10ft, 11ft, 12ft, 6ft, 7ft, 8ft

Material : Pvc

Thickness : 0-20mm

Color : Black, Off White, White

Finishing : Coated

Surface Treatment : High Density Polyethylene

Feature : Durable, Fine Finished, Light Weight

Precision Air and Dirt Separator are designed to eliminate air and separate debris associated with any hydronic system. In removable type High Velocity air and dirt separator, a removable flanged type end cover is installed so that easy access for coalescing medium and dirt removal. Non removal type high velocity air and dirt separator are also manufactured. Air and dirt separator are designed and manufactured as per ASME section VIII Div 1 and registered with National Board of Boiler and Pressure Vessel inspectors. Material of construction will be carbon steel. Connections are flanged to Class 150, Class 300, PN16 or PN 25. External surface will be coated with red oxide primer and with one coat red enamel paint. Standard working pressure will be 10 bar. Designs up to 20 bar available on request.Each air and dirt separator to be fixed with air vent. A tap is fitted on top of the removable cover (in removable type) and in body for non removable type to facilitate system fast fill and removal of floating impurities and air trapped within the air separator.ApplicationPrecision Air and Dirt Separator removes entrained air bubbles and dirt particles in the system. Small Air bubble coalesce and form larger air bubbles which rise to the top of the vessel and vented through the air vent. Dirt particles that are collected at the bottom of the separator can be removed through the blow down valve .In case of coalescing medium to be cleaned then top removable cover to be removed for access. Precision air & dirt separators provide higher efficiency with reduced pressure drops so a smaller pump can be used to achieve maximum efficiency.PALL Ring TechnologyPrecision air and dirt separator use proven PALL ring technology. By using Pall Ring technology micro bubbles as small as 18 microns, and dirt particles of 35 microns can be removed. It removes air from place where air vent cannot be installed and also it removes and separates solid particles. Pall Rings are kept in a stainless steel basket which can be removed from the top flange of removable type air and dirt separator. Pall rings are made of Stainless steel 304 material. Air bubbles are separated by the pall ring through coalescene process where dirt particles are caught and drifted to the bottom of the tank, further removed through blowdown valve.Typical SpecificationsFurnish and install, as shown on plans, a removable / non removable type Air and Dirt separator. The unit shall have flanged inlet and outlet connections to the vessel. A vent connection shall be fitted to the top of the vessel to enable installation of Airvent. Air and Dirt separators shall have all steel body construction designed fabricated and stamped as per ASME Section VIII Div I with a working pressure of 10 bar. Each Air & Dirt Separator to be fitted with a blow off tap to remove the air trapped within the separator. Air and Dirt Separator shall use high surface area pall rings made of stainless steel 304 to separate air and dirt with minimal pressure drop. Removable type Air and Dirt separator shall have removable upper head for removal, inspection and cleaning of the pall ring basket.

With all standard provisions like : One manhole Access ladder Hand rails 2 saddle of 200m height ½” acrylic tube with valves for level indication. Painted with one coat of primer and one coat of finish paint externally with internal wire brush cleaning

Material : Carbon Steel

Capacity : 500 Litres to 50,000 Litres

Features : Guaranteed oxygen removal to 0.005 cc/litre (7PPB) Guaranteed to eliminate titratable free carbon dioxide to O Guaranteed to heat water to the corresponding temperature of the saturated steam contained within the vessel Turndown 20-1 Capacities from 5000 # hr to 1,000,000 # hr 10 minutes of storage capacity minimum #430 stainless steel Riveted Trays. #304 Stainless Steel internal vent condenser (direct contact on units > 30,000 PPH) #316 Stainless Steel spray valves #304 Stainless Steel tray enclosure Our exclusive gliding tray door system for ease of tray inspection and removal All de-aerators designed for extract job conditions, no over or under sizing Completely packaged and ready for installation All vessels designed, built and stamped in accordance with the ASME code for 50 psig

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

StandardsASME Code construction : All tanks are constructed in accordance with ASME code section IV and labelled for 125 PSI (8.6 BAR) as Standard.Precision also design Buffer Vessel as per British Standard BS 853:1996, BS 5500:1997 or in accordance with Art 3.3 of the European Directive EEC/97/23 for pressure equipment.Vessel LiningPrecision Coat - Precision coat is a polymerized coating which is applied to all internal surfaces of the tank. Tank surfaces are first sandblasted and cleaned to a white metal finish and then precision coat is applied uniformly. The tanks are then force cured at 95°C to form a glossy lining unaffected by thermal shock from -6°C to 80°C. Precision coat is approved by US department of agriculture and with NSF/61 certification for drinking water.Glass Lining - Precision’s glass lining is a specially formulated vitreous porcelain enamel, which is applied to all interior surfaces of the tank. Tank surfaces are first sandblasted to a white metal finish and then Porcelain enamel is applied uniformly. The tank is then fired to 900°C in a furnace to achieve 100% molecular fusing of the glass to the interior steel surface, which forms a best possible glass coating for potable water in a strong vessel. Connection : Connection can be of screwed / flanged. Supports : Supports can be of L type, Ring type or Tubular. Painting : All Buffer vessels will be Externally Sandblasted to SA 2.5 and then coated with two coats red oxide primer. Working Pressure : Buffer Vessels are manufactured to 8.6 bar working pressure as standard (for other pressure please consult factory). Insulation : 50mm thick fiberglass wool encased in GI sheets and painted in Blue color.

Steam boilers must be blow down at regular intervals to resolve some of the suspended and dissolved solids formed during the course production of steam. These undissolved solids in the boiler water can give rise to foaming and scaling of the boiler tubes and shell. Selection of a blowdown vessel depends on the flow rate and the proportion of flash steam released. Blowdown vessels are manufactured in Carbon steel plates.

Material of Construction : Carbon Steel – Flanged to Class 150/PN16/ PN25 All steel body Stainless steel strainer Advantages : Elimination of air from closed circulation system Tangential style Low velocity vortex Avoid inefficient pump operation. Low pressure drop across the separators Benefits : Recover air perfectly Optimum pump operation Prevent pump cavitation. “Precision” tangential air separators are manufactured in state of the art modern facility with automatic machines Principle :Precision Tangential air separators removes air from the system through centrifugal action, with a combination of centrifugal force and with reduction of velocity. This makes the air, force water towards the outlet connection, where the separated air moves to the low velocity center. Air is removed from the system through air vent.Operating Conditions : Standard working pressure : 10 bar Standard Working Temperature – 177°C Can supply for pressure up to 30 bar

Air receivers are manufactured in quality Carbon steel for storing compressed air with capacities range from 100 litres to 50,000 litres.StandardsPrecision design and manufacture Air Receivers in accordance with EEC/ 97/23 for pressure equipment or ASME Pressure Vessel code.ConnectionConnection can be of screwed / flanged.SupportsSupports can be of L type , ring type or Tubular.Working PressureAir receivers are manufactured to 10.8 bar working pressure as standard ( Pressure available up to 50 bar)External PaintingAll compressed air tanks will be painted with RAL 5015 Blue colorOptional AccessoriesSafety Valve, Pressure Gauge, Auto Drain valve etc