Chem-Tech Series 100 Mechanical Diaphragm Chemical Metering Pumps with Degassing Technology - 120V AC

The Chem-Tech Series 100 Mechanical Diaphragm Chemical Metering Pumps with Degassing Technology are industry-proven dosing pumps designed for accurate, reliable chemical injection in water treatment and industrial process applications. Made for consistent performance under continuous duty, these pumps are especially well-suited for off-gassing chemicals such as sodium hypochlorite, where standard metering pumps can lose prime or accuracy.

Featuring a rugged mechanical diaphragm drive, sealed gear train, and integrated degassing capability, the Series 100 delivers stable chemical feed at pressures up to 100 PSI, making it a trusted solution in municipal, utility, and industrial environments.

What Is a Mechanical Diaphragm Chemical Metering Pump?

A mechanical diaphragm chemical metering pump uses a motor-driven diaphragm to move precise volumes of chemical through a sealed pumping chamber. This design isolates the drive components from the process fluid, providing a leak-free, pressure-stable dosing solution that performs reliably over long operating periods.

Compared to peristaltic pumps, mechanical diaphragm pumps are often selected when:

• Higher discharge pressure is required

• Consistent output must be maintained against backpressure

• Long service life and low maintenance are priorities

The Chem-Tech Series 100 has become a standard in chemical feed applications due to its balance of simplicity, durability, and dosing accuracy.

Key Features & Operating Benefits

• Mechanical diaphragm drive for consistent, repeatable dosing

• Sealed gear train reduces maintenance and extends pump life

• Self-priming operation simplifies startup

• Guided quad check valve system ensures accurate metering

• Bleed valve assembly standard for easier priming and pressure relief

• Manual feed rate control with locking lever for stable adjustment

• Industrial-grade diaphragm designed for continuous duty

Built-In Degassing Technology for Off-Gassing Chemicals

Why Degassing Matters

Certain treatment chemicals, most notably sodium hypochlorite, chlorine, and hydrogen peroxide, release gas during storage and injection. Gas accumulation inside the pump head can cause vapor lock, resulting in:

• Loss of prime

• Inconsistent dosing

• Reduced system reliability

Degassing Head Assembly

The Chem-Tech Series 100 is available with degassing head technology that actively removes gas bubbles from the pump head and returns them safely to the supply tank. This prevents vapor lock and maintains consistent chemical feed, even in demanding disinfection applications.

This makes the Series 100 an excellent choice as a:

• Sodium hypochlorite metering pump

• Degassing chemical feed pump

• Chlorination injection pump

Performance Range & Pump Capabilities

Flow Range

The Chem-Tech Series 100 is optimized for low- to medium-flow chemical dosing:

• Less than 3 GPD up to 30 GPD

• (0.47 to 4.72 LPH, model dependent)

This range is ideal for precision dosing rather than bulk chemical transfer.

Pressure Capability

• Maximum discharge pressure: Up to 100 PSI (7 bar)

The pump maintains accurate metering performance even in systems with backpressure, long injection lines, or elevated discharge requirements.

Materials & Wetted-End Options

To ensure chemical compatibility across a wide range of applications, the Series 100 is available with multiple material configurations.

Pump Head Materials

• Clear PVC

• PVC

Clear pump heads allow visual confirmation of flow and valve operation during startup and troubleshooting.

Diaphragm & Check Valve Components

• Diaphragms: CSPE, Viton, PTFE-faced CSPE-backed

• Seats & O-rings: PTFE, CSPE, Viton

• Check valve balls: Ceramic, PTFE

PVC wetted-end configurations are recommended for sodium hypochlorite applications, as noted in Chem-Tech technical documentation.

Adjustable Feed Rate Control

Flow adjustment is performed using a manual feed rate control knob with a locking mechanism. Operators can:

• Adjust output while the pump is running

• Fine-tune dosing without system shutdown

• Maintain repeatable settings once locked

This makes the Series 100 well-suited for systems requiring stable, economical chemical feed without electronic complexity.

Applications for Chem-Tech Series 100 Mechanical Diaphragm Pumps

Chem-Tech Series 100 Mechanical Diaphragm Pumps are widely used in:

• Municipal water and wastewater treatment

• Chlorination and disinfection systems

• Sodium hypochlorite injection

• pH control and chemical conditioning

• Industrial process water treatment

• Utility and infrastructure chemical feed systems

Their reliability and degassing capability make them particularly effective in off-gassing chemical applications.

Available Series 100 Models

Each model is designed to deliver accurate metering across its rated operating range.

Accessories & System Integration

The Series 100 integrates easily with a wide range of chemical feed accessories, including:

• KOP (Keep On Pumping) maintenance kits

• Pulsation dampeners

• Pressure gauges

• Chemical storage tanks

• Process controllers

These components allow the pump to be configured as part of a complete chemical feed system.

Maintenance & Reliability

Mechanical diaphragm pumps are known for long service life when properly maintained. Regular inspection and calibration help:

• Preserve dosing accuracy

• Prevent unplanned downtime

• Extend diaphragm and valve life

Chem-Tech Series 100 pumps are designed for ease of maintenance, with readily available replacement parts and rebuild kits.

Buy Chem-Tech Series 100 Mechanical Diaphragm Pumps

If your application requires accurate chemical dosing, dependable performance, and degassing capability for off-gassing chemicals, the Chem-Tech Series 100 Mechanical Diaphragm Pump is a proven solution. These mechanical diaphragm chemical metering pumps are widely used in municipal water treatment, chlorination systems, and sodium hypochlorite dosing applications.

At Cleanflow, we supply Chem-Tech chemical metering pumps and can assist with model selection, material compatibility, and application guidance across Canada and the USA.

Frequently Asked Questions