Ningbo Dewo Irrigation Equipment Co., Ltd.
宁波德沃灌溉设备有限公司
Ningbo Dewo Irrigation Equipment makes irrigation devices in Yuyao, Zhejiang: impact sprinklers, micro and landscape sprinklers, drippers, valves and connection parts. It moulds, assembles and tests in-house and takes OEM/ODM work. For farm sprinkling, the DC-S2-3 impact sprinkler has a full nozzle table with flow and radius at each pressure, which makes a good starting point for a quote.
What Dewo makes, by irrigation duty
Dewo's catalogue covers several kinds of watering, each with its own hydraulics. Pressure compensation and thread type vary across the range, so ask for them per product. When you benchmark Dewo's sprinklers, the Runte RT-9816 and RT-9821 Rain Guns and the Neetrue Rain-Spray Hose, Normal and Double-Wing show two other ways to spray a field.
[1][2]| Product group | What to ask for |
|---|---|
| Impact sprinklers | Flow and reach for each nozzle at a stated pressure, plus installation and distribution data. |
| Micro, inverted and upright sprinklers, foggers | The emitter itself, its mounting position, filtration needs and the duty it is built for. |
| Drippers and landscape products | Flow against pressure for the exact dripper and its use. The DC-S2-3 figures belong to that sprinkler alone. |
| Valves, saddles and sets | Connection standard, pressure and flow limits, and a parts list for each set. |
Models and specifications
Quote the exact model, configuration and operating conditions together, and ask the factory to confirm current availability.
Dewo DC-S2-3 Impact Sprinkler
Catalogue reference: DC-S2-3
The Dewo DC-S2-3 is an agricultural impact sprinkler offered with six nozzle sizes, from 2.5 to 4.0 mm. Dewo publishes flow and spray radius for each nozzle at set pressures, from 360 L/h at a 9.5 m radius up to 1030 L/h at 13.0 m. Pick a nozzle and pressure pair from the table, then ask Dewo for the inlet thread, the test setup behind the figures and a layout for your field. This page gives the full table, how to read it for a zone, and what to send with an order.
- Operating pressure
- 1.0000–4.0000 bar
- Spray range
- 9.5000–13.0000 m
- Nozzle diameter options
- 2.5000–4.0000 mm
DC-S2-3: flow and radius move with nozzle and pressure
The DC-S2-3 table is grouped by six nozzle sizes. The 2.5 and 2.8 mm nozzles are listed at 2, 3 and 4 bar. The 3.0 to 4.0 mm nozzles are listed at 1, 2 and 3 bar. At 2 bar, the 3.0 mm nozzle gives 510 L/h at an 11.5 m radius, and the 3.5 mm nozzle reaches the same radius at 660 L/h.
These duty points help you shortlist a nozzle. Before you lay out a field, ask Dewo how the points were measured and for a zone proposal. Pipe and hose sizing matter as well: our irrigation hose and pipe guide covers inner diameter, friction loss and working pressure. The page talks about saving water but gives no measured figures for yield, pump energy or irrigation efficiency.
[1]Is this a fit for your project?
Based on the manufacturer's published range.
A good fit for
- Farm impact-sprinkler orders that start from the published DC-S2-3 duty points.
- OEM and custom device orders within Dewo's moulding, assembly and irrigation range.
Confirm in writing before ordering
- Current factory and ISO 9001 certificate scope, plus model materials and connections.
- Where pressure is measured, distribution test conditions, your installed layout and the service terms Dewo will sign.
Starting a custom irrigation order
Dewo's wide range can cover most of a sprinkler or micro-irrigation order. Agree on the device first, then on how the installed system will be accepted.
[1][3]Describe the job
Crop and soil or landscape task, water source and the shape of each zone.
Choose the device
Product reference, nozzle or emitter, connections, mounting and what the set includes.
Approve the sample
Drawing and material revision, sample, and the hydraulic and distribution test you will accept.
Agree handover
Production inspection, spare parts, delivery date and written service terms.
Ningbo Dewo Irrigation Equipment Co., Ltd.
A useful inquiry starts with a clear task
Prepare the same requirement for each supplier. Add the exact model, configuration and acceptance conditions before comparing quotations.
Your entries stay on this page, are not uploaded or sent to a supplier, and clear after a reload. Copy or print to retain them.
Before comparing the order
0 of 6 essentials checked
Moulding, assembly and custom parts
Dewo's company and quality pages describe its own workshop and warehouse, injection production, mould making, assembly and testing. It offers OEM/ODM work and sample development. The pages do not list machines, test methods, sampling limits or lead times.
For a custom nozzle or fitting, ask for a controlled drawing, a material specification and written terms on who owns the tooling. Agree how flow tolerance and spray distribution will be tested on the sample before production starts. Ask Dewo to confirm the 15000-square-metre site and its current production capacity when you shortlist it.
[2][3]ISO 9001 and company documents
Dewo says it works to ISO 9001 quality management. The readable pages give no certificate number, issuer, validity date or site scope, and no company-specific record turned up in public authority searches by exact name.
When you qualify Dewo, request the current certificate with holder and scope, the company registration for the producing site, and product test reports that name the model. Production photos and general delivery promises are a starting point; agree capacity and delivery dates in the contract.
[2][3]Questions buyers should settle
When was Dewo founded?
Dewo's introduction mentions twenty years of experience without giving a date. Ask for the company registration if the founding year matters to you.
[2]How much water will Dewo sprinklers save?
The DC-S2-3 page gives flow and reach at each pressure but no measured saving. Base your estimate on a zone layout and a distribution test for your field.
[1]Sources
Each source is listed with the date it was checked. Ask the factory to confirm current stock, certificates and approvals for your market.
Dewo official DC-S2-3 page and nozzle table
manufacturer · Record checked 2026-10-11
Flow and radius for six nozzles at each listed pressure. Test conditions are not stated.
Dewo official company introduction
manufacturer · Record checked 2026-10-11
Product range, production scope, the 15000-square-metre site and the twenty-year experience line.
Dewo official quality and production page
manufacturer · Record checked 2026-10-11
Describes injection moulding, mould making, assembly and testing in Dewo's own workshop.
Dewo official contact identity
manufacturer · Record checked 2026-10-11
Gives the company location in Yuyao.
Related buying guides
Specifying Irrigation Hose and Pipe: Lay-Flat, Suction, Rain-Spray and Drip