Solenoid-Driven Diaphragm Metering PumpHS Series

HS Series

Dial-Adjusted, Cost-Effective Dosing

HS Series
Key Specifications
Max Flow RateUp to 20 L/h
Max Back PressureUp to 10 bar
Stroke Frequency1–100 SPM
Power Supply220V AC / 50 Hz
Protection RatingIP65

Product Overview

The HS Series uses a rotary dial for stroke frequency adjustment, offering a compact form factor and straightforward operation. It is an economical choice for small to medium water treatment projects, with a robust housing designed to withstand demanding industrial environments at low maintenance cost.

Working Principle

An electromagnetic solenoid converts electrical pulses into linear reciprocating motion. Each pulse drives the diaphragm forward, displacing a precise volume of liquid through the discharge check valve. On the return stroke, the diaphragm retracts and draws liquid through the suction check valve. Dosing rate is controlled by adjusting stroke frequency (pulses per minute) and/or stroke length, providing a wide turndown ratio of up to 1:100.

Wiring & Signal Output

Power supply: 85–265 V AC / 50–60 Hz (universal input)
Control input: 4–20 mA analog signal (proportional dosing)
Control input: Pulse signal (1 pulse = 1 stroke)
Level alarm input: dry contact (NC/NO) for low-level shutdown
Fault output: dry contact relay (pump fault / low level)
Optional: RS485 Modbus RTU for SCADA/BMS integration

Product Features

Rotary dial stroke frequency adjustment for intuitive operation
Compact design with minimal installation footprint
Rugged housing suitable for harsh environments
Multiple liquid-end material options available
Ingress protection rating IP65

Technical Data

ModelMax Flow (L/h)Max Pressure (bar)Power (W)
HS-031031018
HS-071071018
HS-1510151018
HS-200720718

* Specifications listed are for standard models. Contact us for custom configurations.

Typical Applications

Small-scale water treatment stationsSwimming pool chemical dosingAgricultural irrigation fertilizationLaboratory metering

Installation & Application Gallery

Water treatment dosing system — multiple solenoid metering pumps installed in parallel

Water treatment dosing system — multiple solenoid metering pumps installed in parallel

Warehouse stock — solenoid metering pumps ready for dispatch

Warehouse stock — solenoid metering pumps ready for dispatch

Outdoor chemical dosing station — solenoid pumps with chemical storage tanks

Outdoor chemical dosing station — solenoid pumps with chemical storage tanks

Frequently Asked Questions

What is the maximum flow rate of this solenoid metering pump?+

The flow rate depends on the specific model. Solenoid metering pumps in the H Series range from 0.5 L/h to 60 L/h at maximum pressure. Refer to the technical table above for model-specific flow rates.

Can this pump dose corrosive chemicals such as hydrochloric acid or sodium hypochlorite?+

Yes. Liquid end materials including PVDF and SS316 are available for aggressive chemicals. PTFE diaphragms provide excellent chemical resistance. Please specify your chemical and concentration when requesting a quote.

What control signals does this pump accept?+

Standard models support manual stroke frequency adjustment. Advanced models (H+ and HS series) accept 4-20mA analog input, pulse input, and RS485 Modbus RTU for PLC/SCADA integration.

What is the ingress protection rating?+

IP65 as standard, suitable for outdoor and washdown environments. IP67 is available on request.

Is OEM or private label available?+

Yes. TL Environment offers OEM manufacturing and private label services. Contact us with your specifications and volume requirements.

Request a Quote

Share your process parameters (flow rate, back pressure, media) and we will provide an accurate quotation.

Get a Quote Download Datasheet

Material Options

Liquid End Materials
PVCPPPVDF
Diaphragm Materials
PTFEEPDM