On-Line PC Dripper
On-line pressure-compensating (PC) dripper for even watering of trees, landscaping and greenhouses; flows of 2, 4, 8, 12, 16 and 24 L/h, sold in packs.
- Pressure-compensating: the same flow along the line
- Fitted onto lateral tubing (on-line)
- Flows of 2, 4, 8, 12, 16 and 24 L/h
- For orchards, landscaping and greenhouses
- Sold in packs; technical reference ISO 9261

Key Specifications
- Product code
- P142
- Reference standard
- ISO 9261
- Material & grade
- POM
- Applications
- Irrigation & agriculture, Landscaping, Greenhouses
- Dimensional options
- 6 rows in the specification table
What a PC dripper is and how it differs
A pressure-compensating (PC) dripper has an internal diaphragm that adjusts the flow path as water pressure rises and falls. As a result, the first dripper on the line, at higher pressure, and the last one, at lower pressure, give almost the same amount of water. On long rows or sloping ground this keeps watering even.
A non-PC dripper has no such diaphragm and its flow changes with pressure; it works on short lines and flat ground, but on long or sloping lines the first and last trees get different amounts of water. PC drippers usually cost more, but on large orchards that evenness is worth it.
Dripper flow and how to choose
In our rows the PC dripper comes in flows of 2, 4, 8, 12, 16 and 24 L/h. Low flows are used for pots, greenhouses and small plants and higher flows for large trees. Our catalogue also names an anti-drain (CNL) version that keeps the line full after the water is shut off; put it in your enquiry if you need it.
The number and flow of drippers per tree are set by an irrigation designer from the plant's water need, the soil and the watering schedule. The dripper is fitted onto 16 or 20 mm lateral tubing with a hole punch, and micro tubing can carry the water to the foot of the tree.
Fitting and caring for PC drippers
Push the dripper into the punched hole square to the pipe and with even pressure so no water leaks round the stem. Filter the incoming water and open the line ends from time to time to flush out collected particles.
On-Line PC Dripper — Technical Specifications
Wall thickness and weight are calculated from the standard series and are approximate; final values are confirmed in the quotation.
| Flow (L/h) |
|---|
| 2 |
| 4 |
| 8 |
| 12 |
| 16 |
| 24 |
On-Line PC Dripper — FAQ
Which flows are supplied?
2, 4, 8, 12, 16 and 24 L/h.
When is a PC dripper needed?
On long rows and sloping ground where pressure changes along the line.
Which pipe is it fitted on?
On 16 or 20 mm lateral tubing, using a hole punch.
Are drippers sold in packs?
Yes; our catalogue lists pack sales for this product. Put the quantity you need in your enquiry.



