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Category Archive for ‘Valves’

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Valve – Slide

The Fresco slide valve range is used to control the flow of powders, pellets and granular materials.

These applications should be gravity only and offer unrestricted material flow.

The slide plate seals up to a machined face providing a product tight seal.

The slide valves can be manufactured from a range of materials and are able to suit most sizes and applications. The slide valves can be supplied in either pneumatic, electric, rack and pinion or manual versions. With square, rectangle or round options available they are by far the most cost effective versatile flow control device.

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Valve – Rotary

We have an extensive range of rotary valves covering all applications.

The modular design of our rotary valves allows many different configurations using standard components.

The AL Airlock and BL Blow Through rotary valves have been designed for applications in the metering and pneumatic conveying of products in powder and granular form. Granular Valves are specially designed for gravity feeding and pneumatically conveying granular products.

The standard Airlock and Blow Through models are suitable for products up to a temperature of 150°C and a maximum pressure differential of 2 bar. Special configurations are available to accommodate temperatures between –200°C and +900°C. Pressure shock resistant up to 10 bar g and explosion proof models are also available.

The GL series of valves come in 5 sizes, covering a capacity range from approximately 5 to 79 litres per revolution at 100% filling. Standard models are suitable for handling products up to a temperature of 150°C and a maximum pressure differential of 1.5 bar. Other options are available on request.

Quick demountable options with easy slide rails for all valves are available ensuring quick and easy cleaning.

Drive options include chain, direct, air and hydraulic drive.

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Valve – Diverter

Fresco Systems has a great range of Diverter Valves to suit most applications.

Models include a Flap Type Diverter, Plug Type Diverter and a Fabricated Diverter Valve.

These Diverters have been designed to divert powders, pallets or granular materials from one discharge point to another with minimum degradation in pneumatic conveying and gravity applications. 

All versions are available in cast iron or stainless steel and are available in a large range of sizes.

There are four operating modes to choose from: pneumatic cylinder assembly, pneumatic actuator assembly, electrical actuator and hand operation. A smooth passage of product is guaranteed by precision machining and a good seal, ensuring a complete obstruction-free passage.

These user friendly designs require minimal maintenance and have no moving parts on the outside of the unit.