Hastelloy springs

Springs are an internal component of the dosing pump that directly contribute to the accuracy and continuity of dosing. By default, the springs fitted on Mixtron dosing pumps are made of 316 stainless steel, a material that guarantees good mechanical performance in the vast majority of standard applications.

In some cases, following our analysis of the application and chemical compatibility with the dosed additive, we at Mixtron may recommend opting for Hastelloy springs. This is a high-performance metal alloy known for its exceptional corrosion resistance, recommended when the dosed additive is particularly aggressive (concentrated acids, strong bases or complex chemical solutions) and you want to preserve the mechanical integrity of the dosing pump in the long term. In these cases, choosing Hastelloy springs means investing in the longevity of the dosing unit and in continuous performance, especially in industrial or agricultural contexts where plant downtime is costly.

Bell with ON/OFF function

The bell with ON/OFF function is an accessory that allows you to temporarily interrupt the additive dosing without having to remove the dosing unit from the hydraulic system. Using a special button, you can lock the suction piston and open two valves inside the dosing unit, allowing the incoming water to pass through and exit without any additive being drawn in.

This solution is particularly useful in all applications where the user needs to alternate between treated and untreated water without interrupting the flow of the system. A typical example is seasonal agricultural activities, such as fertirrigation or animal medication, where the need to dose the additive varies throughout the year.

The decision to equip the dosing pump with this accessory is at the discretion of the end user, but it represents a concrete added value for those who manage systems that require operational flexibility.

Seals and gaskets in Extreme version

Seals and gaskets are essential components for ensuring the hydraulic seal of the dosing unit and preventing leaks or contamination. In the standard configuration, Mixtron dosing units are fitted with gaskets that meet the requirements of most common applications.

When the additive being dosed is particularly aggressive, i.e. highly acidic, highly alkaline or chemically complex solutions, or when the chemical composition of the fluid to be dosed is not precisely known, we at Mixtron recommend opting for Extreme seals, available in Viton or EPDM. These materials offer superior chemical resistance and durability compared to standard seals, reducing the risk of premature degradation and ensuring greater reliability over time.

The Extreme version is therefore the ideal choice both in the presence of certified aggressive additives and as a preventive measure in all those contexts where the end use of the dosing device is not yet fully defined.

Tightening key for high-capacity models

On the high-flow models in the Mixtron range (MX.950, MX.1100 and MX.1300), the tightening key is included as standard with every order. This is not an optional extra, but an accessory that we considered essential given the nature of these dosing units: larger and heavier than standard models, they are less easy to manoeuvre during routine and non-routine maintenance operations.

The key allows you to easily open and close the dosing bell, simplifying all operations that require access to internal components, from checking seals to replacing worn parts. A simple tool, but one that makes a real difference in terms of practicality and the frequency with which the operator can work on the doser without difficulty.

Mixtron Blender

The Mixtron Blender is an additional mixing chamber designed to be installed downstream of the ByPass dosing unit, directly in the hydraulic system.

By its very nature, the ByPass dosing unit produces a pulsed injection of the additive, generated in the bypass and not in the dosing unit motor body. In some installations, this can result in insufficiently homogeneous mixing before the point of use of the solution. The Mixtron Blender solves this problem by providing additional mixing immediately downstream of the dosing unit, making it particularly suitable for systems with very short piping after the injection point and where the solution must be ready for use in a very short time.

This is a new accessory in our range, designed to meet a specific need for precision and consistency in the dosed solution, in contexts where every centimetre of piping is crucial.

Mixtron's advice on choosing the right accessories for dosing pumps

In conclusion, choosing the right accessory for a dosing pump always depends on the application, the nature of the additive being dosed and the installation context. In this article, we have analysed the main Mixtron accessories available for our dosing pumps, but each system has its own specific characteristics. For this reason, our team is available to provide personalised technical advice and guide you towards the configuration that best suits your needs. Contact us now for a dedicated consultation, and we will get back to you as soon as possible.