Liquiflo
Installation, Operation & Maintenance Manual
Max
®
Series Sealed Pumps
Models M2 thru M8
1.2 Pump
Specifications
Max
®
Series SEALED Pump Specifications
Pump Model
M2
M3
M4
M5
M6
M7
M8
Units
Port Size
1/2 1/2 3/4 3/4 1 1
¼ 1
½
in
Port Type
Threaded (NPT/BSPT) or Flanged (ANSI/DIN)
▬
Body Material
316 Stainless Steel
▬
Mounting Bracket
Motor Mounted, 316 SS
Pedestal, Epoxy-Painted Cast Iron
▬
Mechanical Seal
Single Internal or Double, Type 9T
▬
RMS
1
1800 1800 1800 1800 1800 1800 1800
RPM
Theoretical Displacement
2
.00138 .00193 .00289 .00491 .00675 .00859 .01105
GPR
Flow Rate @ RMS
2.5
(9.4)
3.5
(13)
5.2
(20)
8.8
(33.5)
12
(46)
15.5
(58.5)
20
(75)
GPM
(LPM)
Max Differential Pressure
3
350
(24)
350
(24)
350
(24)
350
(24)
350
(24)
350
(24)
350
(24)
PSI
(bar)
Max System Pressure
4
500
(34.5)
500
(34.5)
500
(34.5)
500
(34.5)
500
(34.5)
500
(34.5)
500
(34.5)
PSI
(bar)
Max Temperature
5
500
(260)
500
(260)
500
(260)
500
(260)
500
(260)
500
(260)
500
(260)
°F
(°C)
Min Temperature
-40
(-40)
-40
(-40)
-40
(-40)
-40
(-40)
-40
(-40)
-40
(-40)
-40
(-40)
°F
(°C)
Max Viscosity
6
100,000 100,000 100,000 100,000 100,000 100,000 100,000
cP or
mPas
NPSHR @ RMS
2
(0.6)
2
(0.6)
5
(1.5)
5
(1.5)
5
(1.5)
4
(1.2)
3
(0.9)
ft
(m)
Suction Lift (dry) @ RMS
2
(0.6)
4
(1.2)
6
(1.8)
6
(1.8)
7
(2.1)
6
(1.8)
14
(4.3)
ft
(m)
Weight
7
39
(17.7)
39.5
(17.9)
40
(18.1)
42
(19.1)
54
(24.5)
55.5
(25.2)
56
(25.4)
lbs
(kg)
RMS
= Recommended Maximum Speed
NPSHR
= Net Positive Suction Head Required
FOOTNOTES:
1
Under special conditions, Models M2 thru M4 can be operated up to 3600 RPM. Consult factory.
2
Based on new pump operating at RMS and 0 PSI differential pressure.
3
Maximum differential pressure is dependent upon fluid being pumped. Consult factory.
4
Must be derated for flanged pumps, based on the flange and temperature of the application.
5
Pump may require trimmed parts depending on the materials and temperature. Consult factory.
6
High viscosity fluids may require larger pumps with trimmed gears operating at lower speeds. Consult
factory.
7
Weight of pump with threaded ports, not including motor.
NOTES:
1
The actual maximum surface temperature depends not on the pump but primarily on the temperature of the
fluid being pumped. Temperature class can be controlled with the use of thermal sensors. Pump surfaces
will be approximately 20
°
F (7
°
C) above the temperature of the fluid being pumped.
2
Pump is designed to operate within the ambient temperature range of -4
°
F (-20
°
C) to 104
°
F (40
°
C).
3