PulseGuard
PulseGuard Ltd. and Inc.
PulseGuard Ltd. offers pulsation dampers | Please phone 44(0) 161-480-9625
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Fluid Flow Control Animations
Fluid Flow Control Animations

MULTIHEAD INTERACTION
Transients from one pump head,
disturb the check valves of the next.


Multiplex Diaphragm with LP and HP FLexorbers cross sectional view

When volumetric efficiency is less than 93%, the level of shock and pressure pulsation become greater can be tolerated by adjacent check valves.
Beware of hot and compressible liquids.

To prevent pressure transients in the suction line from breaking the liquid column into alternate slugs and voids, it is essential to intercept and remove the transients.

This may be achieved by placing a flow-through pressure pulsation interceptor individually in the line to each check valve, or one central damper, as shown here, with non interconnected pipes leading to a piping base block.

what this looks like Connection piping What this looks like

This prevents the check valve from one cylinder "talking" to an adjacent cylinder, causing it to open when it should be close, and creating an even greater fall in efficiency.

Similarly, in the discharge system, the extreme levels of discharge shock that comes from low efficiency, not only destabilizes valves that should be re-seating, but also makes control by feedback from instruments a near impossibility.

The rule is never to use a normal "manifold", they create the maximum interaction.

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Selecting Pulsation Dampeners for Different Pump Systems.
Flow through pulsation dampers are at least 3 times more efficient than T off line accumulators.
Dampeners that do, flow goes through, but pressure pulsation does not.
PulseGuard Pulsation DampersThe Smooth Flow People

Call Toll Free 1-888-DAMPERS (326-7377) / See also: Pulsation-Dampeners.com for a pulsation dampener.


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