Pitotless Nozzle US Patent 6,874,375; additional patents applied for

• Perfect for measuring flow-rates where job conditions do not allow water discharge such as stairwells or rooftops
• The versatility of the In-line Pitotless Nozzle allows for accurate flow-rate readings when discharging into a closed-loop system, a drain, a hose, or open atmosphere
• Read flow-rates at the test header while discharging at hose end
• Use three interchangeable Pitotless Nozzles to measure as low as 90 GPM up to 1400 GPM

The In-Line Pitotless Nozzle measures water flow-rate from a hose valve, pressure reducing valve, hydrant nozzle, between two lengths of 2 ½” hose, or just about any 2 ½” outlet. Hose or piping can be attached downstream of the unit without affecting the accuracy of the readings.

Common Applications

Common applications for the In-line Pitotless Nozzle include:

• Stairwell standpipe flow testing
• Pressure reducing valve flow testing
• Fire pump flow testing
• Fire flow testing of hydrants
• As an in-line flow meter for fire pumps.

Components

The In-line Pitotless Nozzle Kit includes the following items configured in a padded case. Each component can be sold as a separate line item.

• Pitotless Nozzle™ (Threaded). Sizes1⅛”, 1 ¾”, or 2”.  One size per kit.
• Differential Chamber. 2 ½” NH Female Swivel x 11”
• Differential Gauge. ½% full scale accuracy rated; 0-100 PSI.
• Gauge Tubes.  Two ¼” x 12” tubes w/ push-to-connect tube fittings and male quick disconnects.
• Discharge Valve. 2 ½” NH Slow close valve for controlling water discharge. Included in kit.  Optional depending on application.
• Equipment Case.  Seahorse CASE720; Air tight and crush resistant; 19.75” L x 15.53” W x 7.48”D

Optional Accessories

• 2 ½” Stream Shapers.  To minimize hose-burn.
• 30° or 45° Elbows. To angle the hose or the In-line Pitotless Nozzle to meet job conditions.

Use the chart below to choose the In-line Pitotless Nozzle size based on your expected flow range. One size is included in the kit. You can use various sizes by purchasing the Pitotless Nozzle Threaded separately and swapping them into the differential chamber. In this case the same differential chamber and differential gauge are used.

Specifications

• FM Approved
• Weight:
• All kit components including case = 20 lbs.
• Pitotless Nozzle, discharge chamber, and differential gauge = 8 lbs.
• Length: 18” in length from end-to-end, including the discharge valve.
• Flow-rate Measurement: Net pressure is calculated from the electronic digital differential gauge. GPM flow-rate is obtained by using the flow chart.
• 2 Year Warranty