PulseGuard Pulsation Dampeners

Fluid Flow Control Animations
PulseGuard Pulsation Dampeners
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Pre-Filling Pulsation Dampeners - Strut Valve Opened and Closed with 3/4" Wrench

As used on all aircraft. 304 stainless steel strut valve with 0.5”20tpi and 0.305” tpi. Also has a 0.75” AF Hex swivel nut, use standard wrench. Hose with bull nose nipple and gauge is all you need. A precharging or pre-filling tool assembly is not required. Items needed: 3/4” wrench from your tools (not sold by PulseGuard Inc.) Close valve and put seal cap on “Crack” the knurled nut leak down to pressure you need to set, gauge will read “A” Open valve, temperature increase will show gauge at “A” + Attach second gooseneck connector* and gauge with strut valve closed, no pressure should register *Do not mislay, there is a replacement charge. We photograph every shipment showing goosenecks before box is closed. Close strut valve. Nitrogen cooled flowing in, wait for temperature to stabilize Attach gooseneck* and “T” piece, hose and gauge to open cylinder valve, check gauge. Close cylinder valve, open strut valve, allow nitrogen to flow in, repeat to reach “A”. With strut valve closed remove seal cap Nitrogen Pre-fill Pressure “A”: 80% of theoretical steady state pressure for flow fluctuation smoothing. For pressure pulse interception 50% of steady state. Make calculation on absolute scale and convert back to gauge. As the strut valve can be used to stop too much nitrogen pressure entering dampener, regulator is optional. Nitrogen cylinders can be rented with regulators – pressure reducing valve. There is NOT one of those core pins in a strut valve. No special tools or pin depressor is needed. Regulator TESCOM 441100 Cylinder valve used to allow flow to H.P. hose. With a bubble solution, check that your activity has not loosened the pre-fill valve and caused a leak. NEVER RUN WITH ANYTHING ATTACHED TO THE VALVE, ALWAYS HAVE SEAL CAP ON! STRUT VALVE OPENED & CLOSED WITH 3/4


Fluid Flow Control Pulsation Dampeners