FW: Monsoon master stream nozzle

Subject: RE: Monsoon master stream nozzle
Date: Tue, 15 Nov 2011 13:26:05 +0000

Mr Hansen-

            Good morning!  Looking at the photo of your Master 2000 it has an operating pressure of 100 psi, so within the flow range of the nozzle base nozzle pressure should be about 100 psi.(back pressure)

Can you verify that your nozzle has all the parts indicated above, most specifically the poppet, control spring, and the square seal shown on the piston?  Also, looking from the inlet side there is a filter screen in the center of the nozzle, make sure this is not plugged.  If all of these items are in place and in good order  I am unsure why the nozzle would be causing your pump to cavitate. Is it possible that there is a recirculation valve or PRV open somewhere causing the water to taken another path?  What are engine pressure, residual pressure, etc… when flowing this device.  Is this from Draft or a pressurized source?  Any additional information you can provide on your set up is a great help.

Can you please provide the serial number of the units, it will be configured as  TFTM- then six digits.

Thank you

Doug Heller

Task Force Tips, Inc.

Technical Service Coordinator

TFT Main Ph: 800.348.2686

Direct Service Ph: 800.854.6864

Service-TechnicalSupport@tft.com

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From: Lenard Hansen [mailto:chieflenard@hotmail.com]
Sent: Monday, November 14, 2011 10:37 PM
To: TFT Service and Technical Support
Subject: Monsoon master stream nozzle

We have a couple of monsoon 300-2000gpm nozzles.  When pumped on the master stream device, the pump will start to cavitate like there's no "back pressure" on the nozzle.  In other words, just like an open hose end without a nozzle.  When we look at the tip, we don't find any markings that would indicate a desired pressure that we read on brochures from TFT.  A picture is enclosed to help identify the type of nozzle.  Do you have any suggestions or answers for us?
Lenard
Astoria Fire & Rescue
555 30th Street
Astoria, OR  97103