Plumbing Dbr 30%.docx

DCC BANK Islampur- Maharastra PLUMBING SYSTEM – DESIGN BASIS OF REPORT REVISION 001- 10%

1. PLUMBING DESIGN SYSTEMS FOR DCC BANK – ISLAMPUR MAHARASHTRA 1.1 PLUMBING SYSTEMS DESIGN REFERENCES Applicable Codes The following Codes were referred to while designing the Mechanical systems for the building. NBC – National Building Code - 2005 as per Indian Stds

1.2 Applicable Standards The following standards were followed for the plumbing system design and engineering calculation requirements. ASPE – American Society of Plumbing Engineering Design Handbook Vol-1 & Vol-2

1.3 1.3.1 1.3.2 1.3.3 1.3.4 1.3.5

1.4

PLUMBING SYSTEMS REQUIREMENTS Basic Plumbing Supply Fixtures like Water Closets, Urinals, Lavotaries for daily Hygene & sanitation needs of Bank Staff & Visitors. Showers for Recreational Activity of Banking VIP/ Guest Staffs. Rain Water Harvesting techniques for Water Conservation. SewageTreatment Plant for Water Reuse in landscape Irrigation. Borewell as a source of Potable Water demand.

Buildings Function Requirements

This DCC bank in Islampur – Maharashtra, will be provided with adequate Plumbing systems in accordance with the requirements of the Indian NBC[national Building Codes], . Building usage will be for Office related activities where in People gathered to work inside this BANK for 8 hrs/day occupancy.Requirements consisting potable cold water system for Lavotaries usage & WC ,Urinals & Shower bath as per GRIHA requirements. Storage Tank both Underground & Overhead Tank,sanitary drainage and vents system along with Septic Tank & Chambers, condensate and storm drainage system for Roof as per Arch Roof Plans.

Roof may have addional Hose Bib # 2 Nos on Each Wing Floor to be used for any general Application.Provision for Solar Panels of tube type/Plate type must be assigned by Architect & orientation as per any Solar Panel Dealor/ Consultant. Prepared by: Sr Mechanical Engineer Dolphin Engineering & Services, Belgaum - Mob: +919590513212

DCC BANK Islampur- Maharastra PLUMBING SYSTEM – DESIGN BASIS OF REPORT REVISION 001- 10%

Provision for 1 Nos Overhead Tank will be provided on Roof. Tank Sizing of these tanks will be in accordance with the Water Demand Calculation. These tank will be supported on any rigid structure or pedestal & all these load will be shared with the Structural Engineer. All Storm Water Calculation will be in accordance with Rainfall Data of Islampur/Sangli City & all FRD location after Storm Water Calculation will be as per Civil Engineer approvals. All storm Water line sizing will be as per NBC- 2005 Codes & any governing Stds. However Stormwater in any case should not be Drained into Septic to avoid Overflow but a separate Line shall be provided to collect it in Cistern Tank. Collected storm water can further be treated & used in Irrigation or Hardscape Maintainance to quality for Water Conservation Points in GRIHA Ratings. All Iandscape irrigation shall be done using DRIP IRRIGATION techniques to save more water. In any scenario, there shall be no provision for any type of Lawn Sprinklers.

1.5

Design of Plumbing System Approach.

The design of both drainage and water supply system will be in accordance with 2005 Edition National Building Code, 2007 Edition ASHRAE Application Handbook for hot water demand.

1.6 OVERALL SYSTEMS REQUIREMENTS 

Downfeed Plumbing System will be used to provide both Coldwater Supply to various bldg facility fixture units. Listed below are few Plumbing system requirement. o LAV’s. o WC o Urinals. o Shower Head. o Electric Water Heaters. o Water Hammer Arrestors. o CPVC/UPVC Pipe for Supply Water System. o UPVC Pipe for all Drainage & Storm Water System. o PVC PIPE for all Venting System o GI Pipe for all underground Piping. o Water Meters o Hose Bib in Basement Parking Zone & on Roof. o Drip Irrigation for Landscape Maintainance. o Sewage Treatment Plant for Water reuse. o Water Supply transfer pumps. o Sewage Submerssible Pumps if applicable at site.

Prepared by: Sr Mechanical Engineer Dolphin Engineering & Services, Belgaum - Mob: +919590513212

DCC BANK Islampur- Maharastra PLUMBING SYSTEM – DESIGN BASIS OF REPORT REVISION 001- 10%

1.7 FUNCTIONAL REQUIREMENTS OF PLUMBING SYSTEM.   

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The building will be provided with adequate drainage and vent system for sanitary waste as well as storm water from the roof and adequate cold Drainage and water supply system will be connected at the available site drainage through various Ducts. Supply pumps will be provided to potable system demands for all the buildings. These Pumps will be installed at basement in dedicated space to supply the water from Ground Level Water Tank to Overhead Water Tank. All Overhead Tanks will be installed with Float valve to control the Water Level & this will be interlock with Supply Pump to automatically Switch On/Off the Pump & to avoid Overflow of water. However this mechanism will be discussed only after approval from Owner/Architrect. P.R.V will be provided if pressure at connection point with the water supply system network at site exceeds 80 PSI. All Plumbing material like Elbows, Connectors, Joints, Valves, Water hammer arrestors etc will be finalized only after through design phase. A potable water line service connections from municipal which is connected to the Ground Level Water Tank & to Supply pumps will be provided with water meter in which the location is shown on Civil water supply system network drawing. Drainage system will be Gravity Type & shall be connected to #1 nos Septic Tank at the basement.All the Effluent from these Tanks will be then connected to Municiple Sewer System or to Drainfield at site to be decided cy Civil Engg Personnel. However wheter a Submersible Pump for Effluent Pumping is requird at site can be discussed further during design phase. Pipes material will be in uPVC, Sched. 40 for sanitary drainage / vent and storm drainage system. Pipes material will be in uPVC, Schedule 40, cPVC, Schedule 40 for cold & hot water supply systems respectively. Copper Piping with insulation for Hot water Supply can be discussed during design phase.

1.8 GRIHA REQUIREMENT IN PLUMBING SYSTEM.

In anticipation to aim Maximum points in Water Conservation, below are mandatory requirement in designing & implementing Plumbing services.

1. 14.1.3: Reduce water demand through selection of low-flow fixtures by 70% below the GRIHA base case – 4 points. 2. 15.1.3: Reduce landscape water demand by at least 50% from the GRIHA base case – 4 points. 3. 16.1.2: The STP installed on site meets the CPCB norms – 2 points. Prepared by: Sr Mechanical Engineer Dolphin Engineering & Services, Belgaum - Mob: +919590513212

DCC BANK Islampur- Maharastra PLUMBING SYSTEM – DESIGN BASIS OF REPORT REVISION 001- 10%

4. 17.1.1: Demonstrate that the project meets the on-site water reuse requirements (through on-site recycle and reuse of waste water and use of on-site harvested rainwater) in its annual water requirements for domestic use, buildings, landscape and utilities as mentioned below:

2.9 LISTS OF ALL CALCULATIONS TO BE PREPARED BY THE PLUMBING ENGINEER @ DOLPHIN ENGINEERING & SERVICES. FOR CLIENT REVIEW AND DESIGN RECORDS Provide bound booklet including and depicting Calculations for all Plumbing booklet shall be titled Plumbing Systems Calculations (P-SC).

Systems. This

Potable Water Flow Demand & Load Calculations. 1.

Underground & OverHead Tank Sizing.

2.

Septic Tank Sizing.

3.

Cold Water & Hot Water Supply Pipe Sizing.

4.

Discharge Drainage & Venting Pipe Sizing.

5.

Potable Supply water Pump Sizing with Float Valve Selection.

6.

Hydraulic Calculation for Supply System .

7.

Plumbing Equipment Sizing Calculations.

8.

Sanitary Waste Discharge Load Calculations.

9.

Storm Drainage Systems Calculations.

In Addition as discussed above 

Fixture units (value) method will be used in design calculations on both potable water supply and sanitary drainage systems.

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All water closets either with flush valve or flush tank will be provided with perennial hose spray.

Prepared by: Sr Mechanical Engineer Dolphin Engineering & Services, Belgaum - Mob: +919590513212

DCC BANK Islampur- Maharastra PLUMBING SYSTEM – DESIGN BASIS OF REPORT REVISION 001- 10%

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AUTOCAD 2016 will be used to draft all Plumbing layout as required for detail Engineering.

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All Plumbing calculation will be done using various SreadSheet but not any dedicated Software.

LIST OF “IS” CODE TO BE FOLLOWED:                 

2082 : 1993 Stationary storage type electric water heaters (third revision) (Part 3/Sec 1) : Specific requirements of1979 urinals, Section 1 Slab urinals (second revision) (Part 3/Sec 2) : Specific requirements of 1985 urinals, Section 2 Stall/urinals (third revision) 2326 : 1987 Specification for automatic flushing cisterns for urinals (second revision) 2548 Specification for plastic seats and covers for water-closets: 2556 Specification for vitreous sanitary appliances (vitreous china): (Part 6) : 1995 Specific requirements of urinals and partition plates (fourth revision) (Part 7) : 1995 Specific requirements of accessories for sanitary appliances (third revision) (Part 8) : 1995 Specific requirements of siphonic wash-down waterclosets (fourth revision) (25) 5329 : 1983 Code of practice for sanitary pipe work above ground for buildings (first revision) (24) 2470 Code of practice for installation of septic tanks: (Part 1) : 1985 Design criteria and construction (second revision) (Part 2) : 1985 Secondary treatment and disposal of septic tank effluent (second revision) (23) 13592 : 1992 Specification for UPVC pipes for soil and waste discharge systems inside buildings including ventilation and rainwater system 12592 : 2002 Specification for precast concrete manhole covers and frames (first revision) (2) 10500 : 1991 Specification for drinking water (first revision) 4985 : 2000 Specification for unplasticized PVC pipes for potable water supplies (third revision) END OF BASIS OF DESIGN REPORT

Prepared by: Sr Mechanical Engineer Dolphin Engineering & Services, Belgaum - Mob: +919590513212