VARIBOX FC 800 NS4 Extractor Tube EPDM

Controlled Chemical Dosing from Your VARIBOX FC 800

When a production process requires small and accurately controlled quantities of chemicals, a high flow rate is not always the right solution. The VARIBOX FC 800 NS4 Extractor Tube EPDM is specifically developed for fine dosing applications, combining controlled product extraction with the safety of a closed dispensing system.

The NS4 extractor tube connects the chemical inside the VARIBOX FC 800 directly to your dosing installation. Product can be pumped from the container without opening the VARIBOX during normal use, helping keep both the liquid and its fumes safely contained.

With a dosing capacity of up to 50 litres per hour, depending on product viscosity and the connected pump installation, VARIBOX FC 800 NS4 Extractor Tube EPDM is an ideal solution for industrial processes where accuracy and controlled chemical supply are essential.

Fine Dosing with NS4

The NS4 system has been developed for applications that require precise dosing of relatively small volumes.

Instead of focusing on rapid emptying, VARIBOX FC 800 NS4 Extractor Tube EPDM provides a controlled supply of chemical to the connected process. This makes it particularly suitable for dosing installations where chemicals are introduced gradually and consistently.

The extractor tube reaches the lowest point of the VARIBOX inner container, allowing product to be drawn directly from the IBC while keeping the dispensing process closed.

For applications where significantly faster emptying is required, other VARIBOX extractor tube systems are available.

Keep Chemicals and Fumes Contained

The VARIBOX FC 800 NS4 Extractor Tube EPDM and matching NS4 coupler work together to form a closed dispensing system.

When the coupler is connected, chemical can be pumped directly from the VARIBOX FC 800 into the dosing installation. There is no need to open the container for normal dispensing.

Once disconnected, both the extractor tube and coupler automatically close. This helps prevent chemical product and fumes from escaping and reduces unnecessary operator interaction with the contents of the VARIBOX.

Automatic aeration integrated into the VARIBOX screwcap also means the container does not have to be opened for venting during normal use.

Together, these features support a cleaner and more controlled way of dosing chemicals.

Ready for Dosing Systems with a Return Line

Industrial dosing installations can require more than a single product connection. For applications where a return line is needed, the NS4 extractor tube includes a return connection as standard.

This provides a practical interface for dosing systems requiring product extraction and return functionality without creating an additional opening in the VARIBOX.

The result is a compact dispensing solution designed specifically around the requirements of controlled industrial chemical dosing.

Immediate Product Supply with a Non-Return Valve

The NS4 extractor tube includes a non-return valve that helps keep product inside the tube when the pump is switched off.

Because the chemical does not immediately flow back into the container, product remains available in the extractor tube. When the pump is restarted, it can begin drawing chemical without first having to remove a large amount of air from the line.

This feature supports reliable operation in dosing applications where the pump may regularly start and stop.

The non-return valve is not intended as a guaranteed 100% shut-off valve, and air may gradually enter during extended periods of inactivity.

EPDM Configuration for the VARIBOX FC 800

This version of the VARIBOX FC 800 NS4 Extractor Tube EPDM extractor tube is designed for the EPDM configuration of the VARIBOX FC 800.

Using the correct seal configuration is essential when building a chemical dispensing system. The extractor tube should be combined with the corresponding NS4 EPDM coupler to create the intended connection.

The suitability of EPDM depends on the chemical being handled as well as factors such as concentration, temperature and operating conditions. Chemical compatibility should therefore always be verified before selecting the configuration.

More Product from Every VARIBOX

Efficient extraction helps make better use of the chemical delivered in each VARIBOX.

Because the NS4 extractor tube extends to the lowest point of the inner container, it supports low residual volumes after dispensing. This means less usable chemical is left behind and less residual product needs to be managed afterwards.

For chemicals that are valuable, hazardous or require special disposal, reducing residual product can provide both operational and environmental benefits.

Part of the VARIBOX Safety Concept

The NS4 system is designed around the same principles as the complete VARIBOX concept: Safer, Reusable and Sustainable.

Safer

Closed dispensing helps reduce operator contact with chemicals and limits the possibility of product or fumes escaping during normal dosing. Automatic closing after disconnection adds another level of protection during everyday operation.

Reusable

The VARIBOX FC is developed for repeated industrial use. Components such as the VARIBOX FC 800 NS4 Extractor Tube EPDM can be inspected, maintained and replaced when necessary, supporting reliable operation of the complete system over time.

Sustainable

Accurate dosing and efficient extraction help reduce unnecessary chemical consumption and residual product. At the same time, serviceable components support the long-term reuse of the VARIBOX instead of treating the complete packaging as a disposable solution.

Built for Accurate and Safe Chemical Dosing

The VARIBOX FC 800 NS4 Extractor Tube EPDM provides a practical solution for processes where controlled chemical dosing, safe handling and reliable connection to dosing equipment are essential.

With fine dosing up to 50 litres per hour, a standard return connection, automatic closing and an integrated non-return valve, NS4 brings multiple dosing functions together in one closed system.

Combined with the corresponding NS4 EPDM coupler and VARIBOX FC 800, it creates a controlled route for your chemical from container to process.

Choose VARIBOX FC 800 NS4 Extractor Tube EPDM for precise dosing without compromising on safe chemical handling.