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Accumulators
ACCU-PULSE
Pulsation Dampeners
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Accumulators
ACCU-PULSE Pulsation Dampeners
Developed
to remove
pulsating flows from
positive displacement pumps.
 •
increase system efficiency and pump life
• decrease maintenance and costs
• protect pipes, meters, valves and instrumentation from pulsation
and vibration
• ensure meter accuracy, longevity and repeatability
• reduce pressure fluctuations and diaphragm wear
• prevent foaming and splashing
Accumulators
ACCU-PULSE Pulsation Dampeners
Standard Features:
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lightweight,
compact design
-
150
psi rating
-
easy
in-line maintenance
-
2
year warranty
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3/8",
3/4" and 1" pipe connections; 10 & 85 Cubic
in.
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PP,
PVC, PVDF, 316 S/S, Alloy 20 and Hastelloy C
Accumulators
ACCU-PULSE Pulsation Dampeners
Pulsation Dampeners
Sizing Guide
The following formula
sizes Pulsation Dampeners for use on diaphragm, piston and
plunger type metering pumps.
Required Sizing Information:
V
= volume per pump stroke in cubic inches
K
= type of pump (K factor)
P
= mean operating pressure
D
= allowable pressure fluctuation as a percentage ( +/- from
mean)
n
= exponent for type of gas used (Nitrogen = 0.714; Air = 1.0)
V - Volume
per stroke calculations:
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1)
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Gallons
per minute / strokes per minute = gallons per stroke
Gallons per stroke X 231 cubic inches per gallon = cubic
inch per stroke or |
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2)
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.7854 X
(inch bore diameter)2 X inch stroke length
= cubic inch per stroke |
K - Type of pump:
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Single
Acting
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Double
Acting
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Simplex
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.60
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.25
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Duplex
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.25
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.15
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Triplex
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.13
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.06
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Quadruplex
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.10
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.06
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P
- Operating Pressure (Mean):
Allowable pressure fluctuations:
Minimum pressure Pmin = P - (P X D)
Maximum pressure Pmax = P + (P X D)
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Formula
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V
x K ( P / Pmin )
1 - (P / Pmax)
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= Cubic
inch capacity required |
Accumulators
ACCU-PULSE Pulsation Dampeners
Ordering Information
eg. Part # API-PVC-E-1
AP
- I - PVC - E - 1
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AP
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= ACCU-PULSE |
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I
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= Series Capacity |
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PVC
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= Body Material |
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E
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= Bellows Material |
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1
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= Size |
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Series
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Capacity
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Body
Material
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Bellows
Material
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Size
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I
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10 cu in
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PP= polypropylene
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N = neoprene
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1 = 3/8"npt(f)
series 1
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IF
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4 cu in
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PVC = polyvinylchloride
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B = buna-N
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2= 3/4"npt(f)
series II (std)
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II
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85 cu in
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PVDF =
poylvinyldene fluoride
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H = hypalon
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3 = 1"npt(f)
series II (no charge)
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IIF
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36 cu in
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S/S =
316 stainless steel
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E = EPDM
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4 = 2"npt(f)
series III (std)
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III
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370 cu in
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ALL20 =
alloy 20
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V = viton
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IIIF
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175 cu in
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HAST = hastelloy
C
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T = Teflon
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