Design and installation of the water supply
Water supply and sewerage is considered to be the most ungrateful section in engineering (cheap and problematic), this time was no exception. Our project organization has successfully completed the design and installation of the VC (WWW) system in the new office of the tenant. The main problems were connected, as always with the slope of gravity pipes and the level of false ceiling and screeds. They altered someone else's project documentation, bringing it into conformity with reality.
DESIGN OF WATER SUPPLY AND SEWERAGE
3.1. The project provides for the installation of utility drinking and hot water to the bathrooms
and in the kitchen and connecting projected sanitary appliances to existing risers.
3.2. Distribution of internal networks of cold and hot water is made of galvanized steel pipes
GOST 3262-75 *.
3.3. In accordance with the Specifications of the Lessor, the drinking water supply systems are connected to
mounted building risers. Connect the B1 ∅32 system to the W1.1 ZC drinking water riser
32x3.2; Connect the system В1.1 ∅25 for flushing toilets to the standpipe Wwc1 ZC 32x3.2. To meet the needs
hot water supply T3 ∅25 project provides for the installation of electric water heaters. Internal
distribution of domestic and hot water is carried out to sanitary appliances in the serviced
premises. Border design are shut-off valves on the floor branches of risers.
3.4. On the branches of the risers of water supply (located in communication cabinets) the project provides
installation of valves, regulating and balancing valves, as well as for metering water consumption installed
pulse water meters with nominal flow rates: cold water supply - 1.5 m³ / h.
3.5. Distribution of domestic and hot water pipelines is hidden in
wall and ceiling structures.
3.6. Installation of equipment and sanitary devices to produce in accordance with SP73.13330.2012
"Internal sanitary systems" and SP 40-102-2000 "Design and installation of piping systems
water supply and sewage from polymeric materials ", as well as in accordance with the instructions of the plant
installed equipment manufacturer. Estimated water consumption is determined in accordance with SP 30.13330.2012
"Internal water supply and sewerage of buildings".
3.8. Pipelines of domestic and hot water supply systems should be insulated with foam insulation
rubber type K-Flex ST.
3.9. The connections of the water extraction fittings of sanitary appliances should be made through flexible connections.
3.10. Provide service access to the serviced equipment.
PROJECT DOCUMENTATION OF WATER SUPPLY AND SEWERAGE
4.1. The project provides for the installation of the distribution of household sewage in bathrooms and in
kitchen and connecting projected sanitary appliances to existing stoyakam.
4.2. Distribution of internal sewage networks on the 1st floor is made of PVC pipes, distribution on -1 floor of
cast-iron bezrastrubny pipes and shaped parts like SML production SAINT-GOBAIN
4.3. Connecting to the existing network of domestic sewage provide risers Art. S42 and
Art. S412 ∅100 by arranging tie-ins in accordance with the Landlord’s Specifications and connecting the internal
wiring of household sewage to sanitary appliances in the premises served.
Border design are sockets bends from tees installed on the risers and
main pipelines -1 floor. With the passage of the overlap of the 1st floor install fireproof
couplings to prevent the spread of fire on the risers.
4.4. Plumbing of the domestic sewage system on the 1st floor should be hidden in
wall and floor structures; wiring on the -1 floor to perform openly under the ceiling of the floor. All turns
(including turns through 90 °) of the distributing highway of the sewage system to be performed using 45 ° outlets.
4.5. The height of the installation of sewage discharge from plumbing devices to take the instructions
set out in the instructions of the manufacturer of the installed equipment.
4.6. To connect sanitary devices to the sewage system use special rubber
cuffs of the appropriate diameter to ensure the tightness of the system, avoid leakage and
smell.
4.7. On horizontal networks it is planned to install a cleaning at the beginning of each section along the way.
movements of wastewater and then no less than 10 m. For pipelines adopted slopes, providing
self-cleaning speed.
4.8. Installation of equipment and sanitary devices to produce in accordance with
SP73.13330.2012 "Internal sanitary systems", as well as in accordance with the instructions
manufacturer of the installed equipment. Estimated water flow is determined according to
With the joint venture 30.13330.2012 "Internal water supply and sewerage of buildings".
4.9. Provide service access to the serviced equipment.
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