Rotary Valve

Rotary valves can also be called as an “airlock” as it keep things separate with an airtight fit. This could be 2 chambers which needs to have different pressure levels and the rotary valve allows this to happen and are often used to enter OR extract material from the chambers. As well as this the rotary valve is often used as a measuring or metering device.

Parmac have designed their own rotary valves as well as modified designs for customers with specific needs and requirements. Rotary valves can be painted on both sides if they need to be and Parmac can do this for you on request.

A common rotary valve to explain its uses is the common stopcock and is the simplest form of a rotary valve. The stopcock is a rotary valve that with rotation it plugs the flow of water or of gases through pipes. Other ideas of the use of a rotary valve could be:

Changing the pitch of brass instruments by a rotary valve .
Controlling the steam and exhaust ports of steam engines, most notably in the Corliss steam engine.
reversing the flow of air Periodically as well as fuel across the open hearth of a furnace.
Loading sample on chromatography columns.
Certain types of two-stroke engines.

Parmac’s main client for this product is the largest bulk haulier in the UK for whom we provide a number of valves for each year. Their valves consist of hard chromed and ground bore with hard chromed ground faced end plates and stainless steel rotors. The rotary valves can be a fixed or mobile unit to suit any requirement and the valves can be hydraulically or electrically driven as required. To discuss rotary valves in more details and what Parmac can do you for needs and requirement call to speak to us and prices are available on request.

Rotary Valve Breakdown Repairs and Rebuilds

As well as supply new rotary valves Parmac also offer a comprehensive breakdown and reconditioning service. On-site technicians available to service/repair valves as and when required and Parmac have a goods vehicle access so trailers can come onsite to be repaired under cover.

There are many types of rotary valves and are used in many different ways through all industries and the home without you even realising. Some valves are designed to transfer dry solids like graduals or powders within a pressurised or vacuumed system. Procol rotary valves are able to operate under these conditions whilst keeping the seal. Rotary seals are suitable for a wide range of uses and Parmac can help you get the correct rotary valve for your job, whether it’s a standard rotary valve, or a rotary valve that’s needed from your own design or if you need Parmac to design one especially for your needs.