PEM 740 Aerating Jets


The center jet is the PEM 749.

PEM 740 Series Aerating Jets represent one of the most widely used spray effects in the world. This type of jet evolved over a period of time as to be one of the most effective and flexible, yet least flow demanding "White Water" spray effect jet.

PEM 740 Series Aerating Jets are extremely economical to use as they provide with a least possible flow of water, the maximum in visibility of spray effects. They are the "White Water' Jets. The jets are submerged to their immersion level. Built in swivel bases permit directional adjustment to appr. 150° off center line. Micrometric adjustment of the air intake sleeve permits changing the ratio of water drawn from the pool and air, thereby changing the appearance of the spray and its height.

Adjustment rules:

  • 1. Air Intake Sleeve UP, spray heavier and lower.
  • 2. Air Intake Sleeve DOWN, spray lighter and higher.

PEM 740B Series Aerating Jets are offered with suction strainer around the intake ports of the jet to prevent leaves or debris from plugging up these ports, causing the jet orifice to spray unimpeded to the height of the operating head pressure. PEM 740-A Series Jets are offered without the suction strainers for locations where they are not required or desired. These aerating jets require a constant water level with a differential not exceeding 20mm\0.750" plus or minus.

No Strainer 742A 743A 744A 745A 746A 747A 748A 749A
507-4010 507-4020 507-4030 507-4040 507-4050 507-4060 507-4070 507-4080
With Strainer 742B 743B 744B 745B 746B 747B 748B 749B
507-4110 507-4120 507-4130 507-4140 507-4150 507-4160 507-4170 507-4180
Pipe Size (in.) 3/4 3/4 1 1-1/4 1-1/2 2 2-1/2 3
Stream Size (in.) 0.750 1 1.250 1.5 2 2.5 3 3.5
Nozzle Orifice (in.) 0.625 0.750 1 1.25 1.5 2.0 2.5 3
Suction Strainer 0.125 0.187 0.2 0.250 0.325 0.50 0.50 0.625
Overall Height (In.) 7.5 77.50 9.5 10.5 13.5 15.5 17.920 21.5
Submersion Point (in.) 6.3 6.4 7.875 8.9 11.5 13.5 13.98 19.185
Overall Height (Strainer) (In.) 5 5.75 6.5 8 8.75 10.5 10.5 13
Overall Diameter (Strainer) (in.) 3.5 3.5 3.5 4.5 5.5 7.5 7.5 9


Product Image Item Name+
PEM 742A (No Strainer)

PEM 742A (No Strainer)

PEM 742A (No Strainer) Performances (742A & 742B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 2.2 21 5 3.4 35 8 4.5 53 10 5.6 66
PEM 742B (With Strainer)

PEM 742B (With Strainer)

Performances (742A & 742B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 2.2 21 5 3.4 35 8 4.5 53 10 5.6 66
PEM 743A (No Strainer)

PEM 743A (No Strainer)

Performances (743A & 743B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 4.0 16 5 5.6 10 8 7.2 30 10 8.2 36 15 10.1 54
PEM 743B (With Strainer)

PEM 743B (With Strainer)

Performances (743A & 743B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 4.0 16 5 5.6 10 8 7.2 30 10 8.2 36 15 10.1 54
PEM 744A (No Strainer)

PEM 744A (No Strainer)

Performances (744A & 744B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 6.1 13 5 7.7 20 8 9.8 30 10 10.9 36 15 13.0 54 20 14.6...
PEM 744B (With Strainer)

PEM 744B (With Strainer)

Performances (744A & 744B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 6.1 13 5 7.7 20 8 9.8 30 10 10.9 36 15 13.0 54 20 14.6...
PEM 745A (No Strainer)

PEM 745A (No Strainer)

Performances (745A & 745B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 8.5 12 5 10.9 16 8 13.3 22 10 14.6 27 15 17.2 39 20...
PEM 745B (With Strainer)

PEM 745B (With Strainer)

Performances (745A & 745B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 8.5 12 5 10.9 16 8 13.3 22 10 14.6 27 15 17.2 39 20...
PEM 746A (No Strainer)

PEM 746A (No Strainer)

Performances (746A & 746B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 10.3 11 5 12.5 15 8 16.4 20 10 19.1 23 15 24.1 32 20...
PEM 746B (With Strainer)

PEM 746B (With Strainer)

Performances (746A & 746B) Spray Height (Ft.) Flow (GPM) Nozzle Pressure 3 10.3 11 5 12.5 15 8 16.4 20 10 19.1 23 15 24.1 32 20...