Irrigation equipment and specifications

Irrigation equipment from pump to emitter: what to choose and how to quote

Irrigation equipment here runs from the water source to the plant, and buyers usually assemble a system in that order: a pump to lift and push water, hose or pipe to carry it, fittings and valves to join and isolate it, sprinklers, emitters or spray hose to deliver it, and a timer or controller to run it. Most listings are components rather than finished systems, so the questions that matter are how each part connects to the next and what pressure and flow it sees at that point.

For lifting and moving water, petrol engine pumps cover most farm duties. The Leapaq WP30X is a three-inch clean-water pump listing 1000 L/min, 28 m of lift and 8 m suction on a 6.5 HP engine. Yaofeng splits the job in two: the YFTP30 handles water carrying debris at up to 1300 L/min and 26 m head, while the YFHP20 trades volume for pressure with 65 m total head and 500 L/min. The ERAYAK EYP petrol pumps run from 2 to 4 inches, with the EYP100B reaching 86 m³/h, and the small JOYWAY JW-WP520 comes in 1 or 1.5 inch sizes on a 52 cc engine. For pits and drainage, the Fengqiu Crane QDX750HF is a 0.75 kW submersible pump giving 22 m of head at 80 L/min and passing solids up to 5 mm. Spray rigs use a different pump type, such as the Shuangding MB4130/3.0 diaphragm pump in shaft or pulley drive.

Water then travels through hose or pipe. Neetrue's PVC lay-flat hose comes in four grades: NTS-1012 is rated from 3 bar at 1 inch down to 1.5 bar at the largest sizes, and the heavier grades from 10 down to 5 bar. Its NTS-101GS suction hose is steel-wire reinforced for the pump intake, rated 4 or 3 bar by size, and the prefabricated-hole main pipe carries factory-welded outlets for drip branches, with walls rated at 4 or 6 bar and hole spacing set to your layout. Joints and branches come from Airuiteke, whose PP equal coupling spans nine sizes from 20 to 110, alongside double-union ball valves from 20*20 to 63*63 for isolating a line and pipe saddles with 61 main-and-outlet combinations for taking off a branch.

At the delivery end, the choice follows crop and spacing. The Dewo DC-S2-3 impact sprinkler publishes flow and radius for six nozzles, from 360 L/h at 9.5 m to 1030 L/h at 13.0 m. Runte's RT-9816 and RT-9821 rain guns throw water 15–17 m and 22–25 m across open fields. For drip lines, the Runte RT-8070 pressure-compensating drippers offer 2 to 8 L/h over 1.0–3.0 bar, and the TOLV 4 L/h anti-drip emitter comes with a 2026 test on 30 samples across 50–350 kPa. Neetrue rain-spray hose waters a strip through holes in the tube itself, in normal and double-wing forms from 20 to 76 mm. For hand watering, the Meizhi MZ243 metal nozzle and Green Source models such as the GS1124, with nine spray patterns, finish the hose.

Control ranges from a tap timer to a two-wire network. The Yangteng 07014 runs two outlets from one tap on two AA batteries at 1 to 8 bar. RAIN LING covers zone systems: the RL-CA08 runs eight stations with AC 24 V 1 A output, the RL-CA13 and RL-CA16 grow from four stations in modules, and the RL-CJ100 decoder controller reaches 100 stations over a bus of up to 3 km. Controllers drive solenoid valves such as the RAIN LING EVA/EVD valves, from one to four inches at 0.5–8 bar, or the Yilin YL28009-3, a 24V AC valve with a 3-inch internal thread. Around them sit RL-VQ quick-coupling valves for keyed outlets, air-release valves at high points and an automatic drain valve that opens at 0.2 bar to empty lines at low points.

To specify, start with the water: its source, what it carries, the flow you need and the pressure required at the furthest outlet. Work back through emitters, hose and fittings to the pump duty, and forward from the controller output to the valve coils. Give every connection a size and thread standard on both sides, and ask for each pump's flow at your head from its curve.

Prepare a category-specific sourcing brief · Read procurement guides

Compare the right fields

Read competing quotations on the same basis

Compare quotations at the same level of supply, part against part or package against package. Set pump offers side by side at the flow you need at your system head, read from each supplier's curve, and note the engine, port size and what the water carries. Compare hose, pipe and fittings at the same diameter, pipe standard and working pressure. For control, match the controller output to the coil current of the valves quoted and count stations, modules and decoders. Then ask each supplier to list every item in the price with its connection sizes and threads, so parts from different makers fit together on site.

Questions for your supplier

• What flow does this pump deliver at our system head, and can you send the curve?
• What size and thread standard does each connection use on the items quoted?
• What working pressure applies to this hose, fitting or valve at the size we order?
• Which controller output and valve coil current apply, and how many valves can one station drive?
• Which items, accessories and manuals are included in the price for each line?

Send these questions with your enquiry and ask for the model-specific documents in the quotation.