Professional Invoice & Hydraulic Design System for Pakistan
๐ HVAC & MEP By Engr Jaffar
๐ช Shop / Business Details
๐ Estimate Details
๐ Note: Prices may vary according to distance from shop location. Transport charges will be added based on actual distance. Material rates are subject to market fluctuation. Estimate valid for 15 days from date of issue.
๐ค Customer / Buyer Details
๐๏ธ Project Details
๐ ๏ธ Select Service Type
๐๏ธ
โ
From Scratch New Installation
Complete plumbing from zero โ boring, pipe laying, fittings, fixtures, tanks, drainage โ full system in a new building or empty plot. Everything from boring to running condition.
๐ง
โ
From Running Existing System
Work on an existing running plumbing system โ changes, additions, repairs, upgrades, leakage fixing, shifting of pipes, adding new points, replacing fixtures.
๐
โ
Consultancy Advisory & Design
Design consultancy, system planning, pipe sizing advice, hardware/material buying guidance, layout drawings, BOQ preparation or general plumbing consultation.
๐๏ธ From Scratch โ Complete New Plumbing
๐ Project Scope
๐ฉ Pipe Material Preference
โ Scope of Work โ Select All That Apply
๐ Work Phases & Timeline
Phase / Activity
Duration
Unit
Status
๐ Additional Notes for Scratch Work
๐๏ธ From Scratch โ Complete New InstallationRefer Materials & Labor tabs for costing โ
๐ง From Running โ Existing System Work
๐ Existing System Info
๐ ๏ธ Work Required
โ Select Work Items for Running System
๐ Job Items Detail
Work Description
Qty
Unit
Est. Rate (Rs.)
Amount (Rs.)
Running Work Estimate: Rs. 0
๐ Notes & Site Conditions
๐ Consultancy โ Design & Advisory Services
๐ Consultancy Type
๐ฐ Fee Structure
๐ Hardware / Material Buying Guidance (If Applicable)
List items client needs guidance to buy โ pipe types, sizes, brands, where to buy, price guidance.
Item / Material
Size / Spec
Recommended Brand
Est. Market Rate (Rs.)
๐ Consultant Notes
๐ Consultancy Service TotalRs. 5,000
โ๏ธ
Please select a Service Type above to continue
Choose From Scratch, From Running, or Consultancy
๐๏ธ Building Configuration & System Design
๐ Building Type
๐ฅ Occupancy
๐ฟ Fixtures Count
๐ Pipe Run Details
๐ Recommended System Specifications
0
Overhead Tank (Litres)
0
Underground Tank (Litres)
0"
Main Supply Pipe (Inch)
0"
Branch Line Pipe (Inch)
0"
Drainage Main (Inch)
0
Expected Pressure (PSI)
0
Flow Rate (L/min)
0
Required Pump (HP)
๐ Pipe Sizing Chart - Water Flow & Pressure Loss
Pipe Size
Max Flow (L/min)
Velocity (m/s)
Pressure Loss
1/2" (15mm)
15 L/min
1.5 m/s
Low
3/4" (20mm)
25 L/min
1.8 m/s
Low
1" (25mm)
40 L/min
2.0 m/s
Medium
1.25" (32mm)
65 L/min
2.2 m/s
Medium
1.5" (40mm)
90 L/min
2.4 m/s
Medium
2" (50mm)
150 L/min
2.8 m/s
High
3" (75mm)
300 L/min
3.2 m/s
High
4" (100mm)
500 L/min
3.5 m/s
Very High
๐ฏ Recommended Pipe Layout Design
Click "Calculate Optimal System Design" to see your custom pipe layout recommendation...
๐ก Design Tips for Zero Water Loss:
โข Use loop/ring main for double/triple story - ensures equal pressure on all floors
โข Install pressure reducing valve on ground floor if pressure exceeds 60 PSI
โข Keep pipe bends minimum - each 90ยฐ elbow = 0.5m equivalent pipe length
โข Use check valve near pump to prevent backflow
โข Install air release valve at highest point to prevent air locks
โข Tank overflow should be 1 size larger than inlet pipe
โข Slope drainage pipes 1:100 minimum for self-cleaning velocity
Item Description
Unit
Qty
Rate (Rs.)
Amount (Rs.)
Materials Subtotal: Rs. 0
Fixed Contract Labor
Work Description
Unit
Qty
Rate (Rs.)
Amount (Rs.)
Hourly Rate Labor
Worker Type
Rate/Hour (Rs.)
Hours/Day
Days
Amount (Rs.)
Daily Rate Labor
Worker Type
Rate/Day (Rs.)
Days
Workers
Amount (Rs.)
Per Square Foot Labor
Work Type
Rate/sqft (Rs.)
Total sqft
Amount (Rs.)
Labor Subtotal: Rs. 0
ESTIMATE / INVOICE
Original Copy - For Customer
๐ช From (Shop/Dealer)
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๐ค To (Customer/Buyer)
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Estimate No: -
Date: -
Valid Until: -
Payment: -
Project:- |
Size:- |
Distance:- km |
Transport: Rs. 0
Material Charges
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Description
Unit
Qty
Rate
Amount
Materials Total: Rs. 0
Labor Charges
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Description
Details
Amount
Labor Total: Rs. 0
Rs. 0
Materials
Rs. 0
Labor
Rs. 0
Transport
Rs. 0
Subtotal
GST / Tax (18%)
Rs. 0
GRAND TOTAL
Rs. 0
Terms & Conditions:
1. This estimate is valid for 15 days from the date of issue.
2. Prices may vary according to distance from shop location and market fluctuations.
3. 50% advance payment required to start work. Balance on completion.
4. Material wastage allowance of 5-10% is standard.
5. Any additional work not mentioned in this estimate will be charged separately.
6. Warranty on materials as per manufacturer terms. Labor warranty: 6 months.
7. Site conditions may affect final cost. This is an estimate, not a final quotation.