Popular pump models and technical performance
Honda manufactures self-priming centrifugal pumps engineered for demanding agricultural environments.
Key model specifications:
- Honda WB20X (2-inch / 50 mm suction & delivery): Powered by a 4-stroke petrol engine, delivering a flow rate up to 670 litres per minute with a total head of 32 metres; ideal for small plots, nurseries, and drip manifolds.
- Honda WB30X (3-inch / 80 mm suction & delivery): Powered by a high-output GX160 engine, delivering up to 1,100 litres per minute; the standard choice for rapid flood irrigation and diggi water lifting.
- High-pressure series (e.g., WH20X): Designed for running overhead sprinklers and long-distance pipeline water transfer across undulating terrain.
- Fuel efficiency: Advanced 4-stroke OHV technology consumes substantially less fuel than conventional 2-stroke kerosene pump engines while producing cleaner exhaust.
Installation, priming and suction management
Proper suction line setup ensures peak pumping output.
Operational practices:
- Self-priming operation: Fill the pump casing with clean water before initial startup; the built-in check valve prevents backflow and re-priming delays.
- Suction line integrity: Use rigid, wire-reinforced PVC suction hoses with air-tight couplings; air leaks in the suction hose prevent water lift.
- Foot valve and strainer: Keep the bottom strainer suspended at least 30 cm above pond silt beds to prevent abrasive mud from damaging the cast-iron impeller.
- Suction head: Maintain total suction lift within 6 to 7 metres for optimum water discharge velocity.
Routine maintenance and SMAM purchase subsidy
Inspect engine oil (SAE 10W-30) before daily startup, clean the dual-element air cleaner in dusty conditions, and drain stale petrol from the carburetor bowl before seasonal storage. Small and marginal farmers can avail purchase subsidies under the Sub-Mission on Agricultural Mechanization (SMAM) at agrimachinery.nic.in.
Official source
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Sub-Mission on Agricultural Mechanization (SMAM) ↗Related on KisanPe
Common questions
What is the discharge capacity of a 3-inch Honda water pump (WB30X)?
A 3-inch Honda WB30X pump delivers a maximum flow rate of approximately 1,100 litres per minute (around 66,000 litres per hour) at low head.
Why is a 4-stroke engine superior to a 2-stroke engine for farm pumps?
A 4-stroke engine runs on pure petrol with separate engine oil, provides higher fuel efficiency, lower emissions, and produces less vibration and noise.
Are subsidies available for purchasing portable irrigation pump sets?
Yes, capital subsidies are available under the SMAM scheme and state micro-irrigation programs accessible on agrimachinery.nic.in.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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