New Wafer Check Valve Now Available

Press Release
Monday, November 12, 2012

Asahi/America, Inc., the leader in thermoplastic fluid flow technologies, has expanded its offering of PVC wafer check valves to include sizes 4”, 6”, and 8”.

 

Wafer check valves are installed on the discharge side of pumps in applications such as aquariums, water attractions, water treatment and municipalities to prevent back-flow flooding that could seriously damage pump systems.



Asahi’s new wafer check valve’s body, disc and stopper assembly are machined from solid PVC plate stock, which conforms to ASTM D1784 Cell Classification 12454A. This material was selected based on its excellent chemical resistance and mechanical properties. The wafer check valves are machined, assembled and tested at Asahi/America’s corporate headquarters in Malden, MA.



The wafer check valve conforms to ISO 5752 face-to-face dimensions and is easily installed by slip-fitting the valve between two mating flanges. The valve body automatically centers on the mating flanges, once the stud pack is installed. A directional flow arrow on the valve body indicates the upstream and downstream sides of the valve. The lack of a bolt pattern allows one valve style to accommodate ANSI/DIN/JIS mating flange dimensions. The unique design of the disc and stopper permits the disc to fully open when upstream flow is present, without interfering with schedule piping and mating flanges.



In vertical applications, minimal back pressure provides a positive shut-off tight seal. In horizontal applications, an ETFE-coated stainless steel spring pulls the disc back to the closed position, with minimal back pressure required to fully shut off. A high Cv value ensures that user flow rates will be achieved.  



Asahi’s wafer check valve is available in PVC, 4” thru 12”, with EPDM seals and no spring, standard. All 4” – 8” wafer check valves operate at a maximum pressure of 150 psi, 10” and 12” valves at 90 psi and up to 120o F. Optional seals in FKM and an ETFE-coated stainless steel spring round out the offering.  

 

Maritime Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

New Products

INTERSCHALT VDR Earns CCS Certification

INTERSCHALT maritime systems AG, the provider of maritime software, services and systems for navigation and communications systems (NavCom) and manufacturer of Voyage Data Recorder (VDR) systems,

Coxreels Introduces Three-way Brake for 1600 Series

Hose, cord and cable reel manufacturer Coxreels announced the addition of an optional accessory to improve efficiency and safety of its 1600 Series reel, adding

Arctic Range of Liferafts Introduced

Ship operators working in polar regions can now equip vessels with liferafts from the SurvitecZodiac range that have been manufactured to meet Arctic operating conditions.

Shipbuilding

Brazilian Police to Probe Nuclear Submarine Program

Brazilian federal police are investigating potential irregularities in a military program that aims to build a nuclear-powered submarine in partnership with France by 2023, newspaper Folha de S.

General Dynamics Tops Q2 Estimates

General Dynamics Corp, a maker of ships, tanks and business jets, reported higher-than-expected quarterly earnings and revenues on Wednesday, and sharply raised its outlook for full-year profit.

Eastern Launches Second MPSV for Hornbeck

Eastern Shipbuilding Group, Inc. has launched the second of two 302’x76’x26’ multipurpose service vessels in the HOSMPSV 310ES series for Hornbeck Offshore Services, LLC.

Ship Repair & Conversion

Engine Refit for Mersey Pilot Boat

James Troop supplies two new Volvo Penta engines to upgrade Mersey pilot boat   Merseyside-based engine specialist James Troop & Co has secured a deal to supply

BAE Systems Awards Software Contract to SENER

The Spanish company SENER, Ingeniería y Sistemas S.A has closed a contract with U.K.-based BAE Systems PLC for the integration between FORAN CAD/CAM System and

Self-lubricating Bearing Polymer: Safe, Easy to Machine

Many plastics and metallic alloys present machining challenges as some deform and are difficult to maintain exacting tolerances, while others require strict and

Marine Equipment

Korean Registry Okays Transas ECDIS

Transas, one of the world's leading providers of integrated navigation solutions, received ECDIS type-approval from the Korean Registry (Korea Marine Equipment Research Institute),

MOL Wins Eco Awards in California

Mitsui O.S.K. Lines, Ltd. earned recognition from the ports of both Los Angeles and Long Beach, California, today, for its efforts to ensure compliance with

WGMA Urges Participation in Menhaden Survey

The West Gulf Maritime Association (WGMA) is urging its members with ships arriving at any port in the western US Gulf to participate in the Menhaden survey.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Offshore Oil Pod Propulsion Port Authority Salvage Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2589 sec (4 req/sec)