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 August 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

New Products

NavStation to Launch at SMM

Touch screen technology has transformed everyday life and now, thanks to Norwegian e-navigation specialist NAVTOR, it is set to revolutionize operations onboard busy vessel bridges.

SENER Announces the FORAN V70R3.0

SENER announces the new FORAN V70R3.0, available from July 31, 2014. With more than 45 years in the market, FORAN takes advantage of SENER´s innovative development

Logistical Scenario Analysis for Hydrodynamic Applications

To calculate the operability of the whole logistics chain, rather than only individual operations, MARIN has developed the hydrodynamic scenario analysis program ScenSim.

Shipbuilding

Vard Orders Parat Electric Steam & Hot Water Boilers

During the last month, PARAT Halvorsen AS has collected four new boiler plant orders from the Vard Group and their multipurpose platform ships of Vard 1 08 design.

N-KOM Lays Keel for Qatar’s First Liftboat

Nakilat-Keppel Offshore & Marine (N-KOM) has achieved another milestone with the keel laying of its first liftboat newbuild project, awarded in July 2014 by long-time

Imtech Marine Nav/Com Partner for Groen OSV

The first newbuild ship in a series of three offshore support vessels (OSVS) for shipowner Groen (Scheveningen), 7-Oceans, was delivered at Damen Maaskant Shipyards in Stellendam,

Ship Repair & Conversion

STS Young Endeavour Prepares for World Voyage

The Royal Australian Navy operated Sail Training Ship, Young Endeavour, is undergoing maintenance work in preparation for a 12-month world circumnavigation. It

Maritime Reporter @ 75: The Daily Cartoon

Maritime Reporter & Engineering News was founded by John J. O'Malley (1905-1980) in 1939, and today ranks as the world's largest audited trade publication in the world serving the maritime industry,

MN 100: Eastern Shipbuilding Group, Inc.

13300 Allanton Road Panama City, FL 32404 Tel: (850) 522-7400  Email: info@easternshipbuilding.com Website: www.easternshipbuilding.com President: Brian

Marine Equipment

Vard Orders Parat Electric Steam & Hot Water Boilers

During the last month, PARAT Halvorsen AS has collected four new boiler plant orders from the Vard Group and their multipurpose platform ships of Vard 1 08 design.

NavStation to Launch at SMM

Touch screen technology has transformed everyday life and now, thanks to Norwegian e-navigation specialist NAVTOR, it is set to revolutionize operations onboard busy vessel bridges.

Imtech Marine Nav/Com Partner for Groen OSV

The first newbuild ship in a series of three offshore support vessels (OSVS) for shipowner Groen (Scheveningen), 7-Oceans, was delivered at Damen Maaskant Shipyards in Stellendam,

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Navigation Offshore Oil Pod Propulsion Salvage Ship Electronics Ship Repair Ship Simulators Winch
rss | archive | history | articles | privacy | terms and conditions | 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: 0.1073 sec (9 req/sec)