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Donjoy is specialized in the development of high purity pump, valve controller, automatic regulating valve, aseptic valve, container and process pipeline safety control technology, container and tank cleaning technology, tank and pipeline lighting technology, ASME BPE pipe fittings, sterile pipe fittings, high clean pipe and so on.

Pumps

High cleanliness pumps are a type of pumps specially designed to transport fluids with extremely high requirements for purity, sterility, and contamination-free in ultra-clean environments. They are widely used in cutting-edge industries with strict standards for contamination control.

Screw Pump

Rotor Pump

Sanitary Centrifugal Pump

Self-Priming Pump

Homogeneous Mixing Pump

Flexible Impeller Pump

Emulsified Homogenizing Pump

Sine Pump

Valve Control

valve control unit, it receives from PLC/DCS or other automatic control system instructions to work, at the same time feedback the current valve position signal to PLC/DCS and other automatic control system, but also through the IO-Link, AS-I V3.0 version of the bus communication. Each location will display its current status through a different location color LED light.

valve positioner, it receives from PLC/DCS or other automatic control system instructions such as 4-20mA to work, at the same time feedback the current valve position signal to PLC/DCS and other automatic control system, but also through HART6/7 version of the bus communication.

Valve Positioner

Valve Control Unit

Valve Feedback

Actuator

The actuator is a power device that drives the valve movement. After receiving the control signal (electricity, gas, liquid), it is converted into mechanical force to push the valve stem to open, close or adjust the valve.

Pneumatic Actuators

Electric Actuator

Regulator Valve

The regulating valve is an actuator of the process control system. It can accurately adjust the process parameters such as flow, pressure, temperature, liquid level, etc. of the final medium in the pipeline by dynamically adjusting the valve core opening.

Pneumatic Regulating Valve

Electric Regulating Valve

Valves

Sanitary valves are designed to prevent pollution and ensure product hygiene and safety, and play a key role in the fields of food, pharmaceuticals, bioengineering, etc.

Hygienic Diaphragm Valve

Radial Diaphragm Valve

Sanitary butterfly valve

Flange Butterfly Valve

Single Seat Valve

Double Seat Valve

Sanitary Ball Valve

3 Way Ball Valve

Globe Valve

Angle Seat Valves

Tank Bottom Valve

Sanitary Check Valve

Filling Valve

Sampling Valve

Arc Valve

Safety Control Technology

Valve safety control technology is a key link in the field of industrial automation and process safety, especially in high-risk industries such as petrochemicals, electricity, and pharmaceuticals. It aims to ensure that valves can reliably perform safety functions under normal and abnormal conditions to prevent accidents such as leakage, overpressure, fire, and explosion.

Constant Pressure Valve

Pressure reducer valve

Safety Valve

Breathing Exhaust Valve

Cleaning Technology

Donjoy cleaning ball products have technical advantages such as lower noise, smaller flow consumption, longer service life, shorter cleaning time, and cleaner cleaning effect.

Tank Cleaner

Sight Glass & Lighting

It is usually a key observation component used in industrial process equipment (such as reactors, storage tanks, pipelines, filters, etc.) to monitor the internal material status (liquid level, color, fluidity, foam, precipitation, reaction progress, etc.) or equipment operation status in real time.

Sight Glass

Sight Glass Lighting

Man Hole

The sealable opening installed on closed equipment or containers such as storage tanks, reactors, boilers, pipelines, etc. Its core function is to provide internal inspection, maintenance, repair, cleaning, etc.

Round Manhole

Square Manhole

Filter

Core purification equipment in industrial processes and fluid systems, intercepting, adsorbing or separating impurities by physical or chemical means to ensure medium purity, protect key equipment, and improve product quality and system reliability

Millipore Filter

Pipeline Filter

Floor Drain

Floor Drains

Sanitary Fittings

It is the core component of fluid delivery systems in hygiene-sensitive industries such as pharmaceuticals, bioengineering, food and beverages, and cosmetics. It is designed to meet the stringent requirements of aseptic production, easy cleaning, and zero contamination residue.

Fittings

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Blog

2022-10-29

How to select suitable lobe pump?

Q: How to select suitable lobe pump?A: Firstly, you should know the viscosity of the medium that the lobe pump will be used for and required flow rate & head/pressure.

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