PUMP SERIES

Zhejiang Ligao Pump Technology Co., Ltd. JLM-S

Ligao JLM-S is a solenoid-driven diaphragm metering family for controlled dosing. The official page lists 1–20 L/h flow and a maximum pressure of 0.1 MPa, with 110 V or 220 V single-phase, 50/60 Hz supply options.

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Zhejiang Ligao Pump Technology Co., Ltd. JLM-S — manufacturer product photograph
JLM-S shown in the manufacturer’s catalog; supplied configuration depends on the selected model.

Published specifications

Manufacturer catalog data
Metering flow range1–20 L/h
Published maximum pressure0.1 MPa
Supply options110 / 220 V, single phase, 50 / 60 Hz
External control4–20 mA or pulse, selected version
Diaphragm wetted facePTFE
FamilySolenoid diaphragm metering pumps
Pumped mediumDosing liquid compatible with selected wetted materials
InstallationConfirm metering assembly and accessories

Product details

The published controls include manual stroke-length and frequency adjustment, local or external operation, and 4–20 mA or pulse signals. The display provides operating-mode and dosing information, including accumulated quantity. Confirm which functions and signal interfaces are included in the ordered controller version.

The diaphragm has a PTFE wetted face. The catalog lists PVC, PVDF or PTFE and stainless 304 or 316 head alternatives. Material choice must be based on the dosed chemical, concentration and operating temperature; the availability of a material option is not blanket chemical-compatibility approval.

The described accessories include a filter foot valve, injection valve and connecting hoses. Their materials, connection sizes and pressure ratings should be checked with the pump. The stated pressure is retained exactly as published for JLM-S and is not replaced with a higher rating from another JLM variant. Select the precise flow size and confirm output against system backpressure.

SELECTION NOTES

Specify the operating duty

Provide chemical and concentration, dosing range, system backpressure, suction lift and temperature. Confirm head and hose materials, supply voltage, control signal and calibration requirements.

Published limits may describe different configurations within a series. Confirm that the required operating conditions are valid together.