Asco Numatics has introduced an extensive range of high-performance aseptic diaphragm valves.
The valves have many applications in the pharmaceutical, cosmetics and life science markets and their enhanced circumferential defined sealing angle (CDSA) 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 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 a stainless steel actuator.
Its compact design makes it particularly suited to manifold valve assemblies 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, 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 (cGMPs), and are tested and approved to EHEDG document Ndeg8.
They also have a flexible diaphragm suspension that extends operating life and provides better sealing performance.
Diaphragms are available in a choice of materials, EPDM, EPDM/PTFE (1 piece) and EPDM/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.
