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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter July 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

New Ferry MV Woods Hole Delivered

The newly built ferry M/V Woods Hole has been delivered to serve Woods Hole, Martha’s Vineyard and Nantucket.   Built by Conrad Industries of Morgan City, La.

Cargo Barge Launched for Alaska Marine Lines

Alaska Marine Lines celebrated the launch of its newest barge, Skagway Provider, at a ceremony July 7 at Gunderson Marine in Portland, Ore. where the vessel was constructed.

Romica Manufacturer Secures DNV GL Approval

U.K. winch maker Romica said it is to “redouble its exports drive” after its Romania-based manufacturing partner successfully acquired accreditation with DNV GL.

Ship Repair & Conversion

Quick Propeller Repair Prevents Drydocking

Recently a team of Hydrex diver/technicians performed a propeller blade cropping on a 190-meter container bulker berthed in Hamburg. Two parts of the tip of one

NASSCO Bags USS Oak Hill Modification Award

General Dynamics NASSCO-Norfolk was awarded a $42 million cost-plus-award-fee modification to a previously awarded contract for the repair and alteration for the USS Oak Hill (LSD-51).

IRClass First to Certify Indian Recycling Yards per EU Standard

IRClass is amongst the first organizations in the world to certify ship recycling yards according to EU standards as an ‘Independent Verifier’. IRClass Systems and Solutions Pvt.

Marine Equipment

Boeing 767 Shipped by Barge

MTS Statum completes marine towage of barge carrying Boeing 767 from Shannon Airport   Marine service provider Marine and Towage Services Group Ltd. (MTS) has

Volvo Penta Names Brown Commercial Marine Sales Director

Dave Brown has joined Volvo Penta of the Americas as director of commercial marine sales.   In this new position, Brown will provide strategic and administrative

Romica Manufacturer Secures DNV GL Approval

U.K. winch maker Romica said it is to “redouble its exports drive” after its Romania-based manufacturing partner successfully acquired accreditation with DNV GL.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Naval Architecture Offshore Oil Pod Propulsion Salvage Ship Electronics Ship Simulators Sonar
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: 0.0628 sec (16 req/sec)