Asahi/America Introduces Type 57LIS ISO-5752 Short Pattern Butterfly Valve Make Converting from Metal to Plastic a Snap

Press Release:
  Dec 18, 2009 — Asahi/America, Inc., the leader in thermoplastic valve technology, has expanded its line of butterfly valves to include the Type 57LIS, which provides for easy direct replacement of metallic butterfly valves and conforms to ISO-5752 short face-to-face dimensions.

The Type 57LIS butterfly valve is an industrial quality thermoplastic valve that directly replaces metallic butterfly valves, without any modification to the existing piping system, in applications where metal valves constantly corrode. The face-to-face dimensions of the Type 57LIS (the distance between the two existing flanges), are the same as those of the metal valves that the Type 57LIS replaces.

The Type 57LIS is available in 3” to 8” as a lever-style or with Asahi’s PlasgearTM gear-operator, the industry’s first all-plastic housing design. Standard models are supplied as wafer-style for installation between two flanges or factory equipped with 316 stainless steel lugs for end-of-line applications. The Type 57LIS features an ISO 5211 top flange mounting pattern and molded padlock provision for lever handle models. The Type 57LIS can easily be electrically or pneumatically actuated using Asahi/America actuators.

The design features of the Type 57LIS are identical to those of Asahi/America’s Type 57 and Type 57L butterfly valves. Molded body stops on the valve body make it impossible to over-tighten the mating flanges upon installation. A molded flow-direction arrow on the valve body indicates fluid flow through the valve. A full seat design liner meeting class six bubble-tight shut-off requirements completely encapsulates and isolates the valve body and 316 SS stem from the process media. The valve’s spherically designed disc improves flow characteristics and increases CV values while extending the cycle life of the valve.

About Asahi
Asahi/America, Inc. specializes in providing solutions for fluid handling systems, individualized to meet virtually any customer’s need. Asahi is a leading manufacturer of corrosion resistant thermoplastic fluid handling products, including valves, actuators, pipe and fittings. The company maintains an extensive custom fabrication department, and provides on-site consultation, supervision and training where required. For more information contact: Asahi/America, Inc., 35 Green Street, Malden, MA 02148. Call toll free 877-24-ASAHI or 781-321-5409. Fax 800-426-7058. Send an email to or visit Asahi on the Internet at

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Tags: butterfly valve, type 57lis, asahi america, plasgear
Categorized Under: Butterfly Valves
Company Details:
 Contact:Jeff Baker 
 E-mail:jbaker -at- asahi-america -dot- com 
 Company:Asahi / America View Company Profile 
 Address:work655 Andover St 
 Location:workAndover, MA 01843  United States 
 Web Site: