install engineering cost Summary of calculation rules
1. Pipeline construction drawing reading 1 According to the design specification, the heating branch pipe shall not be less than DN20. 2. Conventional practices of thermal insulation - water supply: anti condensation thermal insulation, hot water: thermal insulation, fire protection: no thermal insulation, chilled water: even valves need thermal insulation, cooling water: according to the design requirements, it can be omitted if not required. Generally, the pipes in the ceiling shall be insulated. Water supply: concealed anti condensation insulation; Anti condensation heat preservation must be done at the entrance of open laying through the hall, bedroom and living room. Drainage: concealed laying for anti condensation insulation; It is necessary to make a drain on the toilet seat of the public toilet laid openly. Thermal insulation shall be provided in the pipe well except for fire fighting and spraying pipes. (Excerpt)
