Replacement seals for dispensing
1. Leak‑tightness: Replacement seals provide a hermetic seal between the connections and valves in beverage dispensing systems, preventing liquid or gas leaks and ensuring efficient system operation.
2. Protection: Seals also protect the contact surfaces between connections and valves, minimising wear and extending the service life of dispensing system components.
1. O‑rings: O‑rings are rubber, elastomer or other flexible material rings used to seal circular connections. They are common in quick couplings, fittings and tap connections in beverage dispensing systems.
2. Flat gaskets: Flat gaskets are pieces of flexible material such as rubber, PTFE or fibre, cut into specific shapes to seal flat surfaces. They are used in flange connections, check valves and other dispensing system components.
3. Compression seals: Compression seals are elastic pieces that are compressed between two mating surfaces to form a hermetic seal. These seals are used in threaded and adjustable connections, such as pipe unions and pressure‑regulating valves.
1. Nitrile rubber (NBR): Nitrile rubber is resistant to oils and fats, making it a popular choice for seals in beverage dispensing systems. It offers good chemical resistance and is suitable for applications at moderate temperatures.
2. Polytetrafluoroethylene (PTFE): PTFE is an inert material resistant to most chemicals, making it ideal for seals in acidic beverage dispensing systems such as cider. It is also resistant to high temperatures and has excellent sliding properties, reducing wear on connections.
3. Silicone: Silicone is a flexible, ageing‑resistant material, ideal for seals in low‑pressure, low‑temperature applications. It is chemically resistant and food‑grade, making it suitable for beverage dispensing systems.
Seals are essential components that ensure leak‑tightness and the correct operation of connections and valves in dispensing systems. They prevent liquid or gas leaks and protect the contact surfaces between components, extending the service life of the equipment.
The main types of replacement seals in tap beverage dispensing systems include O‑rings, flat gaskets and compression seals. These seals can be made from different materials, such as nitrile rubber (NBR), polytetrafluoroethylene (PTFE) and silicone.
When choosing a replacement seal, it is important to consider the type of seal, the material and the dimensions required for your specific application. Check the specifications of the dispensing system manufacturer, take measurements and follow their recommendations to purchase the correct seals.
When choosing a replacement seal, it is important to consider the type of seal, the material and the dimensions required for your specific application. Check the specifications of the dispensing system manufacturer, take measurements and follow their recommendations to purchase the correct seals.
Not all seal materials are suitable for all beverages. For example, PTFE is resistant to most chemicals and is ideal for dispensing systems for acidic drinks such as cider. Silicone, on the other hand, is more suitable for low‑pressure, low‑temperature applications. Always consult the manufacturer’s recommendations to choose the right seal material.
To determine whether a seal needs to be replaced, carry out visual inspections and pressure tests to check for leaks, wear or deformation in the seals. If you find any issues with the seals, it is important to replace them as soon as possible to ensure the correct operation of the beverage dispensing system and avoid problems.
While it is possible to replace seals yourself by following the manufacturer’s instructions and using the proper tools, in more complex situations it may be preferable to contact a professional, especially if you are not familiar with the dispensing system. A professional can ensure correct replacement and proper setup of the system.