2 02/18 building wall penetrations may be made using the "core drilling" method providing proper care is taken to drill the holes to the size needed and square to the line of the pipe. WALL PENETRATION SEALS: All wall penetrations shall be sealed to prevent water from entering the building or manhole. The sealing material shall be as specified by the engineer. KOOL-KORE APPLICATION ENGINEERING PIPE SYSTEM DESIGN: Standard design techniques and practices for KOOL-KORE shall be used. Thermal Pipe Systems, Inc. Engineering Department may on request provide certain detailed design aspects of the piping for each project based on the project documents and drawings provided by the Design Engineer. It is understood that the project specifications and layout drawings will specify the type of service, temperature and pressure classifications, soil conditions, and general path and elevations of the system, location and design of manholes, known obstacles, the size of the carrier pipe, and valves and the maximum permissible heat gains. The design provided by Thermal Pipe Systems, Inc. and their engineers for the piping will be in accordance with good engineering practices. Fluid flow design will be based on Hazen-Williams formula with "C" Factor of 150, or a variation of the Euler formula for water flow. INSULATION: Thickness of insulation for KOOL-KORE pipe shall be as shown on the drawing on page three. TEMPERATURE AND PRESSURE: The KOOL-KORE piping system and all its components are designed to operate at temperatures up to 70ºF at 160 psig or at reduced pressures for elevated temperatures, as follows: TEMPERATURE (ºF) PRESSURE (psig) 80 144 90 121 100 102 110 80 120 64 130 49 DIMENSIONS AND WEIGHTS of insulated KOOL-KORE piping system are as shown on page three. The KOOL-KORE piping will be furnished in 20- foot lengths.