MILTON ROY
A Hamilton-Sundstrand Subsidiary
Pulsation Damper Sizing
H-700B1-01…11
Volume of damper, Vo = Uxq
(Po/P1)0.7143 - (Po/P2)0.7143
= 0.0211160729756244 Liters
Where q = pump displacement (litres)
AxC (piston surface x stroke)
Q/N (flowrate L/min / strokes/min)
= 0.0006
P = average working pressure (bar) = 190
P1 = P - X (bar) = 187.15
P2 = P + X (bar) = 192.85
X = (O x P) / 100 (bar) = 2.85
O = remaining pulsation +/- (%) = 1.5
U = coefficient taking into account = 0.69
the number of piston and if pump
is single or double acting
Q= flowrate L/min = 0.025167 1.51 LPH
N= Stroke speed (strokes / min) = 45
Po = 0.8 x P = 152
* Note this is calculated based on single pump operation.
Selected model: L.1.0,05.10.D.N4.E
0,05 L capacity, Duplex SS shell, FKM Bladder,
rated 210 bar, 1/2" NPT Female, +/- 1.5% Pulsation
Milton Roy (FCD) Dosapro Milton Roy Williams Instruments LMI Y-Z Systems Linc
MILTON ROY
A Hamilton-Sundstrand Subsidiary
Pulsation Damper Sizing
H-700A1-01…11
Volume of damper, Vo = Uxq
(Po/P1)0.7143 - (Po/P2)0.7143
= 4.87032271007038 Liters
Where q = pump displacement (litres)
AxC (piston surface x stroke)
Q/N (flowrate L/min / strokes/min)
= 0.2151
P = average working pressure (bar) = 2.85
P1 = P - X (bar) = 2.78
P2 = P + X (bar) = 2.92
X = (O x P) / 100 (bar) = 0.07
O = remaining pulsation +/- (%) = 2.5
U = coefficient taking into account = 0.69
the number of piston and if pump
is single or double acting
Q= flowrate L/min = 20 32 LPH
N= Stroke speed (strokes / min) = 93
Po = 0.8 x P = 2.28
* Note this is calculated based on single pump operation.
Milton Roy (FCD) Dosapro Milton Roy Williams Instruments LMI Y-Z Systems Linc