Gruvlok, a subsidiary of Anvil International, is a leading manufacturer of pipe fittings and valves for mechanical, plumbing, oil & gas and fire protection applications. The extensive Anvil Gruvlok catalogue includes butterfly valves and iron pipe fittings, such as couplings, clamps, adapters, tees, flanges & caps. Gruvlok 7001 Series couplings are designed in accordance with ASME, ASTM and NFPA standards and are suitable for establishing a connection between similar-sized pipes. These flexible end pipes comprise a grooved connection & a ductile iron body with an EPDM gasket to provide long-term sealing in extreme weather conditions. They are capable of handling loads ranging between 12000 & 35000 lb and can withstand pressures up to 750 psi. The brand's 7700 Series butterfly valves facilitate a stem-to-disc connection for zero-backlash error and a DISC-TO-SEAT loading facility which maintains a leak-tight stem seal, irrespective of the disc position. These valves are available in bolt circle diameters of 3 & 5 inches and in gear & lever-operated handle variants.