§1What this business is
A sluice valve is the gate valve fitted on water mains to open or shut the flow. This unit does not run a foundry. It buys cast-iron bodies, bonnets and wedges from a foundry, machines them on CNC lathes, a milling machine and drilling machines, laps the seats, fits the spindle, nuts, bolts and gaskets, and then tests every valve under water pressure before marking and painting. The report sizes the unit at 6,000 valves a year in large, medium and small sizes, made to IS 14846:2000 under a BIS licence. The main buyers are water boards, development authorities and public health departments.
Capacity: 6,000 sluice valves a year at 100%; 3,600 in year 1 (60%), 4,200 in year 2 (70%) and 4,800 from year 3 (80%).
§2Is it right for you?
Who it is for
A mechanical engineer or machine-shop owner near a foundry cluster who can handle government tenders.
Who it is not for
Someone far from casting suppliers or unable to wait for payment from water departments.
Advantages
- Water supply schemes and smart-city works keep demand rising
- No foundry is needed because castings are bought in
- Government water boards buy to the Indian Standard, which keeps out sub-standard makers
- The same machines can make other flanged water valves
Drawbacks
- Working capital of ₹112 L a month is larger than the fixed capital
- A BIS licence is needed before production starts
- Government buyers pay slowly and buy by tender
- The report says Indian valves struggle against Chinese prices
Skills you need
- CNC turning, milling and drilling of castings
- Seat lapping and valve assembly
- Hydrostatic body and seat testing
- Tender bidding and inspection handling
Why difficulty 3/5: Standard machining and assembly, but BIS licensing, tender sales and heavy working capital.
§3Market
Who buys
- Water boards and water works of states and cities
- Development authorities and industrial development corporations
- Drinking water and sanitation departments
- Building utilities and industries
How it sells
- Government tenders with inspection to the approved drawing
- Supply to pipeline and water-project contractors
- Dealers of pipes and valves
Good to know
- Prices in the report: large valve ₹26,000, medium ₹17,000 and small ₹10,000.
- The report puts domestic demand for sluice valves at ₹300 crore and expects 9% growth a year over the next decade.
- It advises locating near a foundry cluster such as Coimbatore, Rajkot, Kolhapur, Batala, Jalandhar, Howrah or Belgaum.
§4Raw material & machinery
| Item | Qty | Cost |
|---|---|---|
| CNC centre lathe, heavy duty (1000 mm between centres, 260 mm centre height) | 1 | ₹12,00,000 |
| CNC centre lathe, medium duty (1000 mm between centres, 260 mm centre height) | 1 | ₹10,00,000 |
| Universal milling machine (850 x 200 x 380 mm working surface) | 1 | ₹8,00,000 |
| Radial drilling machine, medium duty, 32 mm | 1 | ₹4,00,000 |
| Lapping machine, 900 mm working surface | 1 | ₹3,00,000 |
| Drilling machine, 20 mm | 1 | ₹1,00,000 |
| Double-ended bench grinder, 200 mm wheel | 1 | ₹1,00,000 |
| Hand cutters and pneumatic grinders | LS | ₹1,00,000 |
| DG set, 30 kVA | 1 | ₹10,00,000 |
| Universal testing machine | 1 | ₹4,00,000 |
| Hydraulic pressure testing machine (1000 PSI) and body/flange testing facility | LS | ₹1,00,000 |
| Measuring equipment, gauges and weighing machine | LS | ₹1,50,000 |
| Chemical analysis equipment and metallographic testing lab | LS | ₹2,50,000 |
From: DC-MSME import-substitution DPR — Sluice Valves (2021)
- Cast-iron sluice valve castings38 tonnes a month at ₹100 a kg = ₹38,00,000
- Spindles, nuts, bolts, bonnets, sealing gaskets, chemicals and other components to BIS standards₹17,00,000 a month
- Other consumables₹20,000 a month
From: DC-MSME import-substitution DPR — Sluice Valves (2021)
§5Licences & registration
- Udyam registration
- GST registration
- Factory licence
- BIS licence for sluice valves to IS 14846:2000
- No-objection or consent from the State Pollution Control Board
Start it in your state
Pick your state: today’s cost, central + state subsidy, raw material, land and help, on one page.
§6Schemes & subsidies
At ₹1.30 crore the project is above PMEGP's ₹50 lakh ceiling for manufacturing. CGTMSE can back the ₹87 L term loan and the cash-credit limit without collateral. The report also counts on a 15% capital subsidy of ₹10.50 L, which depends on the scheme open at the time.
§7Money
How the investment is worked out: Fixed capital ₹99 L (land and building ₹20 L, machines and equipment ₹64 L including 18% GST and 10% installation, testing equipment ₹9 L, miscellaneous fixed assets ₹3 L, preliminary and pre-operative ₹3 L) + working-capital margin at 25% ₹28 L + contingencies ₹3 L = ₹130 L. The full working capital is ₹112 L a month, the rest being a cash-credit loan.
Working capital: Working capital is ₹112 L a month: raw material ₹55.20 L, wages ₹2.26 L, utilities ₹0.45 L, other ₹1 L and ₹53 L for one week each of work in process, finished stock and bills receivable. The promoter brings 25% (₹28 L) and ₹84 L is a cash-credit loan.
Prices from April 2021 — check current machinery and casting prices.
§8Export potential
Confirm the HS code in the DGFT ITC(HS) lookup before you export
- The report gives HSN 84818010 for sluice valves.
- It says export demand is large but Indian valves find it hard to match Chinese prices.
§9Risks — where people fail
- Porous or cracked castings failing the pressure test
- Delayed payment from government departments
- Rising pig iron and casting prices
- Losing tenders to lower-priced bidders
§1030 / 60 / 90-day plan
A general plan that applies to any business. A plan for this business will be added after research.
- Days 1–30: Visit a working cast iron sluice valves (water works) unit, ask 10 buyers about price and quantity, and get quotations from 3 suppliers.
- Days 31–60: Udyam and the licences you need (Udyam registration, GST registration), a project report (DPR), and the scheme or loan file.
- Days 61–90: Space and machines, trial production, and first deliveries to 10 customers.
§11Who to connect with
§12Watch
There is no episode on this business yet. Shows are coming soon on the Podcast page.
Want to start Cast Iron Sluice Valves (Water Works)?
DPR, loan file or registration — ask us on WhatsApp.
¶Sources
Data review: 6 October 2026. Spotted a mistake? Report it. For information only — not legal or financial advice.