Elastomer Flex-Tube Pulsation Dampeners
PumpGuard low pressure. Where you have 4 to 6 feet available directly on to the pump. An elastomeri c"hose" dampener for elastomeric hose pumps. PermaCushion for no pre fill required and a Flex Tube support.

Elastomer Flex-Tube / "Hose" Pulsation Dampeners for Sludge, Slurry, & Liquids with Suspended Solids
For Suction with PermaCushion, no Air charge required. Liquids containing grit, sand & relatively large solid objects. Use in suction & Low/High pressure discharge. For Pipe Sizes: 0.75" through 14"
PUMPGUARD - PuG -
SUCTION, FOOD, & SLURRY DAMPERS THE SYSTEM LIQUID
ONLY SEE (1) THE FACE TUBES & (2) THE INSIDE OF THE FLEX TUBE
The Cushion Housing (3) is normally Carbon Steel "Clear-FLow"
UN-OBSTRUCTED IN PLACE FLUSHABILITY. CODE CERT. 29, 289 |
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PumpGuard Flow Through Pulsation Dampener Application
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PIPE PROBLEMS (1), (2), (3)
SUCTION Systems:
The pressure generation from flow reversal in the suction pipe, when the shoe or wheel hits the hose, depends on the length of the suction pipe.
DISCHARGE Systems:
The pressure fall, and the height of the pulse that follows it, when the shoe or wheel lifts off, depends on the length of the discharge system.
Pulsation and hose pumps are system problems. No one can tell you how much pulsation has to be removed to enable your pump to work unless: The pipe system details are estimated and stated. |
Peristaltic - from Greek "contractions and dilations (of a canal) moving a fluid". The inside radius of the pipe, squared x 3.142, is its cross sectional area. Section Area x length is its volume, Volume x Specific Gravity is weight that your liquid adds drag, and so do number & type of "Ls" & "Ts" you choose. No one can calculate how much pulsation you need to have removed, without pipe detail. Pumps can't pump unless: systems are smooth enough.
(1) Grit, Scum, Sewage, almost anything other than broken tail lights lenses, wise in 4" balls of rag & paper - may be pumped for miles, by the pumps below. Provided the pipe length, flow rate, rpm are fixed, then suction PUMPGUARDS can be set for successful discharge use.
(2) Suction lines run up to 75ft / 23 meters, with huge pump priming and potential cavitation, problems that will cause even worse discharge pulsation.
(3) A more normal application: 40ft. of 3" pipe in Yorkshire, England - moderate potential pulsation.
ANSWER PumpGuard & Clear Flow Flex-Tube designed to allow 4" Diameter/100mm balls of rags & paper impregnated with broken tail light lens & wire to pass into ENVIROTECH pumps. Foam pre fill (no air) enables PumpGuard to continue working even after laceration of its Flex-Tube. For details see WORLD PUMPS June Edition 1998
RESULTS (1) No Sewers Overflow (2) Pumps can fill. (3) Smooth systems last for ever!
Pipeline reaction, to pumping action, is also reduced by having 3 off set pumps on one shaft.
See Also: PumpGuard Pulsation Dampener - PuG - (BELOW). With uninterrupted "clear flow", flex tube from end to end, designed for suction, sludge, slurry, easily flush able and even rod able. Available with food industry trim and with flow tube from FDA approved elastomer ingredients.

Sludge, Slurry, Hose, Peristaltic Pump Dampener Information: Pulsation Dampener / Pulsation Dampener Drawings / Pulsation Dampener Safety
See Also @ PulseDampeners.com: Centrifugal Pump Pulsation Dampeners and Gear Pump Pulsation Dampeners
Hose Pumps Pulsation Dampeners / Flow Through / Sludge and Slurry | Pump Surge Dampners | Contact PulseDampeners
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