Pneumatics & Hydraulics


Hard-wearing pneumatic valves have long service life

April 2000 Pneumatics & Hydraulics

Numatics' well-known spool and sleeve assembly solenoid and pilot valves are used in sugar and paper mills worldwide. Here in South Africa Numatics' valves are working trouble-free in most of the major mills.

Numatics SA has been involved in upgrades at Nampak, Sezela and Swaziland mills. Its range of services vary from straight supply to turnkey projects as well as the installation of its equipment on site. Numatics SA has grown from a small operation to a company with representation in all major centres of the country. The main reasons for the growth are the reliability of the Numatics valves, competitive pricing and back-up service.

The Numatic valve consists of a stainless steel spool and sleeve assembly which ensures safe operation with fast response times. The reliability of the valves is maintained for both lubricated and unlubricated air. The hardness of the spool and sleeve ensures no damage from pipe scale or other airline contaminants, while the stainless steel construction combats any airline moisture. These features allow a typical service life in excess of 200 million cycles. The solenoid valves are fitted with low-power consumption coils and combined with low shifting forces, offer economical, high-speed switching.





Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

SMC´s FRL unit: compressed air filtration since 1961
SMC Corporation South Africa Pneumatics & Hydraulics
In pneumatics, the FRL unit is a key element as it ensures the proper functioning of the pneumatic equipment, thereby increasing the operating life.

Read more...
Smart positioner from Festo
Festo South Africa Pneumatics & Hydraulics
The latest CMSH pneumatic positioner from Festo boosts high-performance and long service life.

Read more...
Position detection for hydraulic cylinders
Instrotech Pneumatics & Hydraulics
Instrotech now offers Siko’s SGH wire-actuated encoders to measure stroke as well as speed in hydraulic cylinders.

Read more...
Ultra-high-pressure hose from Parker
Parker Hannifin - Sales Company South Africa Pneumatics & Hydraulics
Parker Hannifin has launched PFX30-05, a DN8 ultra-high-pressure hose that offers improved service life in industrial water-jetting/blasting applications.

Read more...
Putting the new into pneumatics
Parker Hannifin - Sales Company South Africa Pneumatics & Hydraulics
IO-Link enabled products are just one example of how Parker is providing customers with cutting edge technologies for use in globalised manufacturing operations.

Read more...
Position detection for hydraulic cylinders
Instrotech Pneumatics & Hydraulics
Instrotech now offers Siko’s SGH wire-actuated encoders to measure stroke as well as speed in hydraulic cylinders.

Read more...
Festo at the heart of absolute automation
Festo South Africa Pneumatics & Hydraulics
Festo is renowned as one of the leading pneumatic automation suppliers. Over the years, the company has also set the pace in both Process and Electric Automation. This is backed by its proven record of ...

Read more...
Parker’s High Performance Flange system
Parker Hannifin - Sales Company South Africa Pneumatics & Hydraulics
Parker Hannifin has announced that its mechanical flange system for machines and plants with working pressures of up to 420 bar has gained DNV GL approval for marine applications.

Read more...
Compressed air purity analyser
Artic Driers International Pneumatics & Hydraulics
Compressed air treatment using filters and dryers is an effective barrier to airline contamination. Until recently, auditing the compressed air quality in a system was difficult, but clients and professional ...

Read more...
Use compressed air efficiently
Artic Driers Pneumatics & Hydraulics
To attain sustainability, one of the areas that needs great attention is compressed air efficiency within the plant.

Read more...