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
ACCU-PULSE Pulsation Dampeners
Standard Features:
-
lightweight, compact design
-
150 psi rating
-
easy in-line maintenance
-
2 year warranty
-
3/8", 3/4" and 1" pipe connections; 10 & 85 Cubic in.
-
PP, PVC, PVDF, 316 S/S, Alloy 20 and Hastelloy C
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:
|
1)
|
Gallons per minute / strokes per minute = gallons per stroke
Gallons per stroke X 231 cubic inches per gallon = cubic inch per stroke or
|
|
2)
|
.7854 X (inch bore diameter)2 X inch stroke length = cubic inch per stroke
|
K - Type of pump:
| |
Single Acting
|
Double Acting
|
|
Simplex
|
.60
|
.25
|
|
Duplex
|
.25
|
.15
|
|
Triplex
|
.13
|
.06
|
|
Quadruplex
|
.10
|
.06
|
P - Operating Pressure (Mean):
Allowable pressure fluctuations:
Minimum pressure Pmin = P - (P X D)
Maximum pressure Pmax = P + (P X D)
|
Formula
|
V x K ( P / Pmin )
1 - (P / Pmax)
|
= Cubic inch capacity required
|
ACCU-PULSE Pulsation Dampeners
Ordering Information
eg. Part # API-PVC-E-1
AP - I - PVC - E - 1
|
AP
|
= ACCU-PULSE
|
|
I
|
= Series Capacity
|
|
PVC
|
= Body Material
|
|
E
|
= Bellows Material
|
|
1
|
= Size
|
|
Series
|
Capacity
|
Body Material
|
Bellows Material
|
Size
|
|
I
|
10 cu in
|
PP= polypropylene
|
N = neoprene
|
1 = 3/8"npt(f) series 1
|
|
IF
|
4 cu in
|
PVC = polyvinylchloride
|
B = buna-N
|
2= 3/4"npt(f) series II (std)
|
|
II
|
85 cu in
|
PVDF =
poylvinyldene fluoride
|
H = hypalon
|
3 = 1"npt(f) series II (no charge)
|
|
IIF
|
36 cu in
|
S/S =
316 stainless steel
|
E = EPDM
|
4 = 2"npt(f) series III (std)
|
|
III
|
370 cu in
|
ALL20 = alloy 20
|
V = viton
|
|
|
IIIF
|
175 cu in
|
HAST = hastelloy C
|
T = Teflon
|
|
