Anvil® Introduces Two-Piece Large Diameter Gruvlok® Couplings

PORTSMOUTH, N.H. (April 11, 2011) — Anvil International, one of the largest and most complete manufacturers of pipe fittings, pipe hangers and piping support systems in the world, announced the introduction of two-piece large diameter standard groove couplings to its Gruvlok product line.

The new couplings will be available in both rigid and flexible styles and use standard grooves that conform to the American Water Works Association (AWWA) C606 standard for grooved and shouldered joints.

Most large diameter couplings on the market come in four pieces, making them difficult and time-consuming to install. A two-piece coupling offers substantial advantages for installers, especially for large jobs.

Large diameter couplings are typically heavy and often require special equipment. These new Gruvlok couplings require no special grooves, grooving tools, fittings or valves and use up to 23% less weight than competitive models.

“The Gruvlok line has always provided installers with high-quality products that are flexible and easy-to-install,” said Dean Taylor, Anvil’s vice president, sales and marketing. “The launch of these two-piece couplings is another example of Anvil’s commitment to meeting the wide-ranging needs of our users.”

Gruvlok two-piece large diameter couplings are rated for 350 P.S.I. on cut or roll grooved pipe and are available in sizes that range from 14" through 24".

About Anvil International
Anvil International is one of the largest and most complete manufacturers of pipe fittings, pipe hangers and piping supports systems in the world. For more than 150 years, Anvil has provided the highest–quality pipe products and services with integrity and dedication to superior customer service. The company offers expertise and product solutions for a wide range of applications, from plumbing and mechanical, HVAC, industrial and fire protection, to mining and oil and gas. Anvil offers products and services worldwide. Its manufacturing facilities are located in Pennsylvania (ISO 9001:2008 certified), Tennessee (ISO 9001:2008 certified), Texas (ISO 9001:2008 certified) and Rhode Island (ISO 9001:2008 certified). Anvil is a subsidiary of Mueller Water Products, Inc. (NYSE:MWA). For more information, please contact Anvil’s corporate offices at 603–418–2800, 2 Holland Way, Exeter, NH 03038, or visit

About Mueller Water Products
Mueller Water Products, Inc. (NYSE:MWA) is a leading manufacturer and marketer of products and services used in the transmission, distribution and measurement of water in North America. Our broad product and service portfolio includes engineered valves, fire hydrants, metering products and systems, leak detection and pipe condition assessment. We help municipalities increase operational efficiencies, improve customer service and prioritize capital spending, demonstrating why Mueller Water Products is Where Intelligence Meets Infrastructure®. The piping components systems produced by Anvil help build connections that last in commercial, industrial and oil & gas applications. Visit us at