ASCO Numatics Introduces New Range of High Quality, High Performance Aseptic Diaphragm Valves

Unique design innovations enable reduced cleaning cycle times

ASCO Numatics introduces an extensive range of high quality, high performance aseptic diaphragm valves. The new valves have many applications in the pharmaceutical, cosmetics and life science markets and their enhanced CDSA (circumferential defined sealing angle) design, enables savings to be made in the time taken for system cleaning and sterilising. The enhanced sealing performance and the elimination of crevices at the diaphragm joint, enables Steam In Place (SIP) cycle times to be reduced and the time and chemical volume of Clean in Place (CIP) systems is also reduced.

The new range of valves comprises the KMD, KMA and Steripur styles, all with stainless steel 316L bodies which have contoured and streamlined surfaces and are self draining. The Steripur is a high cycle, piston design with stainless steel actuator. Its compact design makes it particularly suited to manifold valve assemblies which are commonly used in food and beverage applications. The KMA range features a diaphragm or piston actuator with stainless steel support and is ideal for steam applications. The compact KMD range has a highly smooth exterior making it suitable for washdown applications. All the valves are available with the option of a hand wheel and optical indicator, as a manually operated alternative to the actuated version.

Available in sizes from DN4 to DN100mm (1/4" - 4"), the range is completed with the option to supply as a welded assembly - designed to minimise the number of welds, or as a multiport design for mixing and blending applications. The multiport designs are compact and can be made to a customer’s specific requirements. All variations are designed to reduce dead legs in accordance with current good manufacturing practices (cGMP’s).

Tested and approved to EHEDG document N°8, ASCO Aseptic valves feature a circumferential defined sealing angle which, compared with valves with a conventional seat body, provides a number of important operational benefits. These include no dead volume, reduced cleaning times in SIP systems, reduced time and chemical volume of CIP systems and better sealing performance. A further design innovation is the flexible diaphragm suspension which extends operating life and provides better sealing performance.

Diaphragms are available in a choice of materials, EPDM, EPDM and PTFE (1 piece) and EPDM and PTFE (2 piece) to match the application, and all are interchangeable without changing the valve compressor or spindle. Accessories for the valves include optical position indicator and stroke limiter, top control box with AS-i interface, mechanical switch for the open position, manual override and support for inductive switches.

ASCO Numatics

Tel: 01695 713600


Published in Valve User Magazine Issue 10

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