DMN Westinghouse

AL/AXL

DMN-WESTINGHOUSE has designed The AL and AXL rotary valves for many applications in the metering and pneumatic conveying of products in powder and granular form. Due to the modular design of this extensive and flexible range of valves many configurations are available, using standard components. The AXL valves are supplied with a larger inlet in relation to rotor volume. They are specifically designed for applications where inlet size is more important than capacity or for handling products with poor flowability. The AL and AXL valve range includes USDA Dairy Accepted models and versions conforming to the EC 1935/2004 directive for sanitary use in the food and pharmaceutical industry. These stainless steel valves are easily detachable within minutes and meet the highest hygienic standards. The AL valves are also available with an optional body having one round and one square flange and a larger diameter inlet: the AML version. The AML valves can also be used as a transition piece from round to square or vice versa. Both AL and AXL standard and Dairy valves are optionally available in MZC execution with slide rails for easy removal of the end cover and rotor without damaging the housing. The AL valves are available in 10 consecutive sizes from 100-500mm (4"-20"), covering a capacity range of the rotor from 0.8-230 litre per revolution at 100% filling. In the 400-500 sizes the valves can also be supplied with square in- and outlet (type OS). The AXL valves are available in 4 sizes from 200- 350, capacity range of the rotor from 5.5-34 litre per revolution at 100% filling. The AXL size corresponds with the dimension of the inlet flange.

AL/AXL DAIRY

The AL-AXL Dairy rotary valves are designed for use in the food, pet food, chemical, and pharmaceutical industries where very high standards apply. The Dairy valves have an official USDA certificate of acceptance for use in dairy plants and are optionally available conforming to the EC 1935/2004 directive. The construction of the valve is designed to avoid bacteriological contamination. All product contact surfaces are in food grade material and smoothly polished. The AL-AXL Dairy valves are optionally available in MZC execution with supporting bars for easy removal of the end cover and rotor without damaging the housing. The MZC valves are easily detachable in a few minutes. The AL Dairy valves are available in 6 sizes, covering a capacity range from approximately 2.5 to 58 liter per revolution at 100% filling. The AXL valves are available in 4 sizes from 200-350, capacity range of the rotor from 5.5-34 liter per revolution at 100% filling. The AXL size corresponds with the dimension of the inlet flange. 

The body and end covers are constructed from AISI 316 stainless steel (DIN 1.4408). The rotor is manufactured from AISI 316L stainless steel (DIN 1.4404). For special applications, internal and external mirror polishing of the valve is possible. The shaft sealing is by means of gland packing or air purge. The standard models are suitable for temperatures up to 80 °C and a pressure up to 2 bar g. Flameproof and explosion shock-resistant versions up to 10 bar g are also available.

The MZC rotary valves have been widely used in sanitary applications (Dairy execution) as well as many other applications. The unit has an easy Removeable rotor which can be removed within a few minutes to facilitate inspection and cleaning. The configuration with direct drive has a very narrow construction. The direct drive, in conjunction with a frequency inverter, results in a very flexible, safe and maintenance free unit (no chains or grease). The extraction mechanism offers a high degree of operator safety and gives the line operators considerable flexibility in cleaning and maintaining the equipment between runs. Moreover the stability of the extraction mechanism ensures that the rotor can be easily moved in and out of the housing without damaging the housing or the rotor blades.

AML

The AML rotary valves have been designed for many applications in the metering and pneumatic conveying of products in powder and granular form. The AML valves can also be used as a transition piece from round to square and vice versa. The AML valve range also includes USDA Dairy Accepted models and versions conforming to the EC 1935/2004 directive for sanitary use in the food and pharmaceutical industry. These stainless steel valves are easy detachable in a few minutes and meet the highest hygienic standard. The AML valves are available in 7 consecutive sizes from 100-400, covering a capacity range of the rotor from 0,8 to 58 litre per revolution at 100% filling. Drive options include chain, direct, air and hydraulic drive.

USAL

The USAL rotary valves have been designed by DMN-WESTINGHOUSE for many applications in the metering and pneumatic conveying of products in powder and granular form. Due to the modular design of this extensive and flexible range of valves many different configurations are available, using standard components. The USAL valves are also available with two optional bodies in various material sorts, one having round-round flanges (AL) and one having round-square fl anges (AML). See separate leaflets for further information. The USAL valves are available in 3 consecutive sizes: 200, 250 and 300 covering a capacity range of the rotor from 5,5 to 19 liter per revolution at 100% filling.