TYPICAL SPECIFICATION
TANK HEATER ENGINEERING (MODEL THW)
Supply and install where shown on plans and with the manufacture’s recommendations, tank heater(s) as follows:
1. TYPE Tank internal tube bundle, single wall tubes, U – tube design
Sized for agitated or non-agitated tank (select one)
2. MATERIALS
Tubes copper -20ga Tubesheet (tube side) carbon steel
Front Head cast iron Tie rods and Spacers brass
Tube Supports brass Studs and Nuts carbon steel
Tank Gasket non-asbestos Head Gasket non-asbestos
Optional Tank Collar standard carbon steel Oversized (allows tank lining) carbon steel
3. CONSTRUCTION
The heat exchanger is to be designed and built in accordance with the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1. A manufacturer's data report for pressure vessels, form No. U-1 or a manufacturer's partial data report for pressure vessels form No: U-2, as required by the provisions of the ASME Code rules, is to be furnished to the user or designated agent upon request. This form must be signed by a qualified inspector, holding a National Board Commission, certifying that construction conforms to the latest ASME Code for pressure vessels for a minimum design metal temperature of 35 F, a tubeside working pressure of … psi at … F, and, a tank side working pressure of …psi at … F
4. CAPACITY
To heat ….US gallons of water in a tank in … hrs from … F to … F using…. USgpm of boiler water at … F. The tubeside pressure drop shall no more than … psi. Each unit shall contain a tube surface area of no less than.. sq.ft.
5. MANUFACTURER and MODEL
The Heat exchangers shall be Armstrong Model No. THW -……….
6. SHIPPING
Each Tank Heater shall be created for shipment. The front head and gaskets shall be inside the crate.
7. INSTALLATION
Each heat exchanger shall be connected to the proper relief valves, vent and/or vacuum breaker as required.