PulseGuard Pulsation-Dampeners.com
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Fluid Flow Control Animations
Fluid Flow Control Animations

Pulsation Dampeners - Pressure Pulse Dampening

Pulsation Dampeners - Pressure Pulse Dampening



Pulsation-Dampeners.com
Index | Selection / Quotation (What do you need?) | Contact Information

Click on the picture of the damper below to see how it works and is assembled, animated.
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Simply, how it works: 1. Pressure measured at one place in a piping system can be seen approx. 1400 meters (0.87 miles) away, one second later. That is to say the speed of pressure wave transfer is generally over 3,000 miles per hour. 3. Frequencies from short lengths of system must be addressed by flow through dampeners.* *Flow through dampeners give more flow fluctuation smoothing PLUS A. Pressure pulse interception. B. Flushability in place. C. Standardization (Flow-through are standard inventory). All at a lower cost! Principles of pressure activity reduction - briefly: I. Pressure transients, going from a small hole into a large diameter space, die away exponentially with distance to the first surface they could reflect from. II. Additionally, mass of liquid deadens the pulse. III. When the cavity is also eight times larger than the exit hole, what is left has difficulty finding its way back to the system. For dimensions, see inventory dimension tables Mounting nuts in three places Alternates: VTFE – elastomer backed encapsulated stiffener with virgin PTFE smooth face for clean in place; FlexFlon – two layers of modified PTFE diaphragms for toxins, pyroforic, and permeate service. Secondary containment sealing “O” ring 0 x 90 degrees to centerline piping option Importance of Prefill: For a pressure pulse interception duty, to 50 % of system pressure, to keep diaphragm up & dampener half full of liquid. Installation options: For best results use small connection to system for constant flow and larger to the pump for the peak flows. Not more than 10 pipe internal diameters long. Piping options are 90 x 90 or 45 x 45 Dampeners that do - Flow goes through, But Pressure Pulsation does not. FlexOrber MP (medium pressure) Pulse interception isolates the pump from the system response. Alternate – saves space beneath suction check valve