Irrigation Frequently Asked Questions

Pressure-Compensating (PC) emitters maintain a uniform discharge rate even with pressure variations caused by sloped terrain or long lateral runs. They are recommended for undulating fields or long rows. Non-PC emitters produce higher flow at higher pressure and lower flow at lower pressure; they are cost-effective for flat fields and short row lengths.

We recommend flushing lateral lines during initial system installation, after fertilizer injections, and at least once every 2–4 weeks during operating season. Regular end-cap flushing removes accumulated organic matter and chemical sediment before clogging occurs.

Standard thin-wall drip tape operates best between 0.6 bar to 1.2 bar (8.7 to 17.4 PSI). Exceeding recommended pressure ratings may cause tape bursting or connection detachment, so installing a pressure regulator at the sub-main connection is highly advised.

Our electrical solenoid valves come with multiple standard voltage options including 24V AC, 12V DC, 24V DC, and 9-12V DC Latching (ideal for battery-operated field controllers). Custom voltage specs can also be supplied upon request.

Air release valves should be installed at system high points, immediately downstream of pumps, adjacent to control valves, and at the ends of long mainline pipe sections to release trapped air pockets and prevent vacuum collapse during drainage.

Hydraulic valves utilize slow-closing diaphragm mechanisms driven by line pressure. By controlling the opening and closing speed via pilot controls, the valve prevents rapid fluid deceleration, neutralizing destructive pressure surges (water hammer).

MOQs depend on the product line:

• Drip Tape / Drip Line: 10,000 to 50,000 meters depending on wall thickness.
• Valves & Fittings: 500 to 1,000 pieces per standard item.
• Full Container Load (FCL): We offer mixed-product container consolidation for distributors to meet individual item MOQs easily.

Standard order lead time is 15 to 25 business days from order confirmation and deposit payment. Peak agricultural purchasing seasons may extend lead times slightly; urgent shipment requests can be prioritized upon consultation.

We support standard global trade terms including FOB, CIF, CFR, EXW, and DDP/DDU. Goods are shipped via ocean container freight (FCL/LCL), air cargo, or international express for urgent sample deliveries.

Yes. We offer comprehensive OEM private labeling services. We can customize outer tape laser markings, carton printing, plastic fitting colors, and roll packaging labels matching your company branding guidelines.

Absolutely. We can adjust emitter spacing (e.g., 10cm, 15cm, 20cm, 30cm, 50cm) and wall thickness according to specific regional agricultural requirements, subject to minimum production volume thresholds.

Trex manufacturing facilities are certified under ISO 9001 (Quality Management System) and ISO 14001 (Environmental Management). Our products undergo rigorous hydrostatic, tensile, flow-uniformity, and UV aging tests in compliance with ISO 9261 international drip emitter standards.

Yes, all Trex drip tubing, PE pipes, plastic sprinklers, and fittings are manufactured using high-grade virgin polymers enriched with carbon black and specialized UV inhibitors to withstand harsh sunlight exposure and agricultural chemicals.