The PIP Pulsating Strip Jets, for frost protection of vineyards, wet only a narrow, square strip of about 0.6 meters wide. The irrigation system wets only the vines and not the space between the rows. Water is applied directly to the vines at an application rate of about 3mm./hour as recommended for frost protection. The irrigation system operates at a very low flow and this, in general, is the main advantage of using the Pulsating Strip Jets system. For example, when the space between the vine rows is 2.4 meters (about 8 feet), by using the PIP Pulsating Strip jets water is applied to only 25% of the area. In such a case, compared to an overhead sprinkler system, that operates at the same application rate of 3 mm./hour, the required flow for operating the Pulsating system is only 25% of the required flow for operating the overhead sprinkler system.

(Fig. 1) The Pulsating strip Jets are wetting only
about 25% of the area. The area between
the rows remains dry (and without ice)

2. Advantages of the PIP Pulsating Strip Jets

The PIP Pulsating Jet system that operates at a much lower flow has the following main advantages:

• Drastically reducing the required investments in the water supply system (smaller size pumps, filters, main lines etc.)
• The Pulsating system can use smaller size reservoirs.
• When water is supplied from a reservoir with limited capacity, the PIP frost protection system can operate for a much longer time, than any other system.
• The Pulsating system saves large amounts of water.
• The soil is not saturated.
• The ground is not flooded.

3. PIP offers different options of Pulsating strip jets for frost protection:

The PIP pulsating strip jets series 200 with the strip head 2PJ (1.1) are now the most popular product used for frost protection of vineyards. Since
late 2006 such Pulsators are already operating in many vineyards in Chile and in California. Several thousands Pulsating Strip jets series 300 with the new innovative 3PJ (1.2) strip jet head (new Patent Application) is wetting a strip of about 0.6x12 meters. PIP is also producing the original Pulsating Strip jets series 100 (1.4) that have been used for frost protection of vineyards since 1995.

PIP Pulsator series 20Y with the innovated strip jet 2PJ wets a strip of about 8 meters long and 0.6 meters wide. PIP strip jet 2pj (Fig. 2)

• The inlet portion (4) of this strip jet has an outside diameter of 6 mm. and can be connected to any PIP Pulsator with a 6 mm. outlet port.
• The wings (3) are used for aligning the strip jets
• The hole (1) can be used for hanging the Pulsating Strip Jets from a wire
• The surface (2) is directs the water at a high uniformity to a square, long and narrow area

Flow, spacing and Application rates of Pulsator 20Y with 2PJ strip jets (fig.3)

At 4 meter spacing the pulsating strip jets operates with full overlapping for excellent uniformity of distribution.(fig.3)

4. The advantages of the PIP pulsating strip jet 20Y-066-2PJ

• The silicone sleeves of these Pulsators are protected from Fire Ants and other insects by a rigid casing without vents.
• The Pulsator can be assembled on a ½” PVC pipe.
• The innovative PIP strip jet 2PJ wets a square strip which is much more efficient than previously used strip jets
• A flexible PVC tube, about 1.5 meters long (with 6mm. O.D.) can be quickly cemented to the inlet of this Pulsator. Different PC drippers with a 4 mm. barbed outlet are assembled on the laterals and connected to the other side of the flexible tube.
• Different PC drippers with a straight nipple can be connected to the inlet of PIP Pulsator 20Y-046-000.
• This Pulsator can operate at any flow ranging from 8 to 25 LPH.
• The flow of each PIP Pulsator is pressure compensated and has the same flow regardless of the pressure in the system.
• Recommended operating pressures: 2-4 bars.
• The components of these Pulsators are produced from high quality plastic
• The Pulsator is very easy to assemble, install, operate and maintain.

5. The PIP Pulsating strip jet catalog # 30Y-066-3PJ

The PIP Pulsator Series 300 with a 3PJ strip jet head wets a square, narrow strip of about 12 meters long and 0.60 meter wide. A few thousands such Pulsators are already being used since late 2006 in different vineyards.

The PIP Pulsating strip jet Cat. # 30y-066-3PJ (fig.4)

Advantages of the Pulsating strip jets 30Y-066-3PJ

• ·The large spacing of the Pulsators reduces the cost of the frost protection system, material and labor.

The PIP Pulsating strip jets Catalog #: 10B-066-2PJ
PIP Pulsators series 100 are the same Pulsator that are used for frost protection of vineyards since 1995. A better water distribution is achieved with the PIP innovated 2PJ strip jet, which wets a square area of about 0.6 meters wide.

PIP Pulsating strip jets series 200 with the strip jet 2PJ operating at a flow of 12 L/H in vineyards in Chile (fig. 6 and 7)


The PIP pulsating strip jets wetting an 8 long strip (fig. 8)

The Pulsator creates an “Igloo” which covers and protects the vine.(fig. 9) The same leaf after the ice melts. (fig. 10)

Pulsating strip jets operating in Manton, Northern California (fig. 11)

Media filter with 4(fig.12) and 7(fig.13) containers in a frost protection project for vineyards in Chile.