GRUVLOK is one of the most widely known and highly respected names of American-made grooved couplings, valves, fittings and associated products. Gruvlok Mechanical Piping Products are easy to install and maintain. Through a combination of roll-grooving and two-bolt coupling design, the Gruvlok product line joins pipe and other components into a single, rugged yet flexible system. This makes Gruvlok products ideal for a variety of applications — particularly in tight spaces such as subfloors, UFAD systems, crawlspaces, trenches, and tunnels.

Gruvlok products eliminate the need for traditional expansion joints, allowing your system to expand and contract with your needs. With a Gruvlok union at every joint, you have the freedom to make on-site tweaks without altering the overall design of your system. Maintenance is as simple and flexible as installation. Every component in a Gruvlok system is easily replaceable and easily accessed, allowing you to make repairs without resorting to a total shut-down.

Who makes gruvlok fittings?

Today, ASC Engineered Solutions makes Gruvlok fittings. In 2019, Anvil International, the original manufacturer of GRUVLOK products merged with Smith-Cooper International. ASC Engineered Solutions is the manufacturer of fire protection, flow control, pipe joining systems and more.  Other recognizable brands made by ACS are ANVIL, FLEXHEAD, and SHARPE.