As part of their popular P series, LMI has introduced their P74 Metering Pump. The P74 is built to a cover maximum capacity of up to 0.58 GPH (2.2 l/h) and a maximum pressure of up to 250 PSIG (17.3 Bar). The pump features a pulse signal input that controls frequency, a manual stroke length control, and a manually adjustable frequency when in local control. Even more, the P74 is equipped with completely encapsulated electronics, chemical resistant housing, low level float switch input and unsurpassed performance.
Specifications
P74 Specifications:
Gallons per Hour
Liters per Hour
mL/cc per Minute
L/cc per Stroke
Maximum Injection
MinMax
MinMax
MinMax
MinMax
Pressure
0.001 0.58
0.004 2.2
0.07 37
0.07 0.37
250 psi (17.3 Bar)
Strokes per Minute
(Adjustable)
Stroke Length
(Adjustable)
Recommended Minimum
Average Input Power at Max Speed
Shipping Weight
MinMax
1 100
20%
22 watts
7.6 lbs (3.5 kg)
Liquid End Specifications:
Machined LIQUIPRO Liquid Ends
Liquid End
Head / Fittings
Balls
Liquifram
Seat / O-ring
Accs. Valve
Tubing
&
Connections
450TI
Acrylic / PVC
Ceramic
Fluorofilm
Polyprel
3FV
PE 1/4" O.D.
450SI
Acrylic / PVC
Ceramic
Fluorofilm
Polyprel
4FV
PE 1/4" O.D.
455TI
PP / PP
Ceramic
Fluorofilm
PTFE
3FV
PE 1/4" O.D.
455SI
PP / PP
Ceramic
Fluorofilm
PTFE
4FV
PE 1/4" O.D.
458TI
PVC / PVC
Ceramic
Fluorofilm
Polyprel
3FV
PE 1/4" O.D.
458SI
PVC / PVC
Ceramic
Fluorofilm
Polyprel
4FV
PE 1/4" O.D.
459TI
Acrylic / PVDF
PTFE
Fluorofilm
Polyprel
3FV
PE 1/4" O.D.
459SI
Acrylic / PVDF
PTFE
Fluorofilm
Polyprel
4FV
PE 1/4" O.D.
257
316ss/316ss
316ss
Fluorofilm
316ss/PTFE
-
1/4" NPT M
Molded LIQUIPRO Liquid Ends
Liquid End
Head / Fittings
Balls
Liquifram
Seat / O-ring
Accs. Valve
Tubing
&
Connections
352TI
PVDF / PVDF
Ceramic
Fluorofilm
Polyprel
3FV
PE 1/4" O.D.
352SI
PVDF / PVDF
Ceramic
Fluorofilm
Polyprel
4FV
PE 1/4" O.D.
353TI
PVDF / PVDF
Ceramic
Fluorofilm
PTFE
3FV
PE 1/4" O.D.
353SI
PVDF / PVDF
Ceramic
Fluorofilm
PTFE
4FV
PE 1/4" O.D.
358TI
PVC / PVC
Ceramic
Fluorofilm
Polyprel
3FV
PE 1/4" O.D.
358SI
PVC / PVC
Ceramic
Fluorofilm
Polyprel
4FV
PE 1/4" O.D.
3FV indicates that the pump is equipped with an LMI Three Function Valve (pressure relief, priming aid, line drain).
4FV indicates that the pump is equipped with an LMI Four Function Valve. This diaphragm type, anti-syhon/pressure relief valve is installed on the pump head. It provides anti-syphon protection and aids in priming, even under pressure.
AUTOPRIME Liquid Ends
AUTOPRIME Liquid Ends are used in applications with off-gassing liquids such as Sodium Hypochlorite.
Liquid End
Head / Fittings
Balls
Liquifram
Seat / O-ring
Accs. Valve
Tubing
&
Connections
D50HI
Acrylic / PVC
Ceramic
Fluorofilm
Polyprel
4FV
PE 1/4" O.D.
D50AI
Acrylic / PVC
Ceramic
Fluorofilm
Polyprel
-
PE 1/4" O.D.
D58HI
PVC / PVC
Ceramic
Fluorofilm
Polyprel
4FV
PE 1/4" O.D.
D58AI
PVC / PVC
Ceramic
Fluorofilm
Polyprel
-
PE 1/4" O.D.
Output Information - AUTOPRIME Liquid Ends (Liquid end models beginning with “D”)
AUTOPRIME liquid ends have 3 check valves: Suction on the bottom; Discharge on the front: Autoprime bleed on the top. By design, a repeatable portion of the process fluid continuously bleeds through the top check valve to be returned to the chemical supply. The result is the assurance that any gas in the head is automatically relieved thus eliminating air-binding. The maximum output per the tables above is reduced to account for the continuous bleed.
Maximum Output
Maximum Pressure
GPH
Liters/hr
mL/cc per minute
mL/cc per stroke
PSI
Bar
0.42
1.6
26.5
0.26
150 psi
10.3
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