Check Valve (Check Valve MK4)

Check Valve MK4 pressure and gas retention valve for beer dispensing in Cask

Optimize your cask beer dispensing system on hand pump with the Check Valve MK4 pressure retention valve. Designed to maintain a constant flow and stop return drainage, this essential valve ensures product quality and consistency. With 3/8" tube inlet and 1/2" barb outlet, it is ideal for bars, breweries and restaurants. Corrosion-resistant, easy to install and maintain, and compatible with various dispensing systems, it ensures reliable, safe long-term performance.

Perpendicular beer inlet and horizontal outlet

The check valve helps maintain a constant flow in the beer line circuit and stops back‑drainage to the cask. Designed for cask dispensing systems.

For use in situations where a cask beer barrel has been installed for a hand pump. The check valve keeps the beer flowing freely out of the cask to the tap. With fitting for wall-mount installations.

Prevents the Cask tap from opening on its own due to excess or lack of pressure

Connections: 3/8" tube inlet and 1/2" barb outlet

This essential component ensures that gas and pressure remain at optimal, constant levels, contributing to the quality and consistency of the final product. Made from high‑quality materials, the valve resists corrosion and is suitable for continuous use in high‑demand environments such as bars, breweries and restaurants.

The Check Valve MK4 incorporates a non-return system that prevents gas or liquid backflow, thus protecting the integrity of the beverage and the dispensing equipment. In addition, its efficient design allows easy installation and minimal maintenance, making it a cost-effective long-term investment.

It is certified according to industry standards, ensuring reliable and safe performance. This product is compatible with various dispensing systems, thus offering versatility and adaptability.