Compressed Gas Hardware
Compressed Gas Hardware
Equipment for air stations, compressors, gas storage and transfer systems, including CGA hardware, manifolds, valves, pressure fittings, gauges, and regulators.
Dive shops must interconnect commercial gas cylinders to create stroage banks and “scuba air stations.” This requires a variety of specialized CGA (Compressed Gas Association) hardware and fittings with appropriate pressure ratings. GMC offers a wide selection of these items. SEE PRICELIST FOR BURST DISKS ASSEMBLIES FOR INDUSTRIAL VALVES. THESE ITEMS ARE NOT PICTURED OR LISTED IN THE CATALOG.
GMC offers a complete line of fittings for manifolding gas storage cylinders into cascade systems. Industrial / medical gases each have prescribed CGA (Compressed Gas Association) fittings to prevent accidental mixing and maintain commensurate pressure ratings. Each CGA fitting has a specific shape and thread which will MATE only to a matching fitting. Each matched fitting system is designated by a CGA number. GMC stocks manifolding hardware for standard breathing air to 3000 psi (CGA 346), hi-pressure breathing air (3000 - 5500 psi), oxygen (CGA 540), and inert gases like helium and argon (CGA 580). All commercial gas cylinders have specific CGA outlets on their valves, and a corresponding adapter / fitting is needed to mate with it. Direct valve connections require a nut and nipple (also called a tailpiece), to achieve a gas-tight seal. Occasionally, thread adapters are required to convert CGA connections to more practical threading systems. Special converters are also used to interconnect CGA outlets where gases and pressures are compatible. GMC offers a variety of CGA nut / nipple connectors as well as CGA thread adapters and converters.
GMC stocks a variety of valves for gas control applications at various pressure ranges. Control of some gases such as oxygen demand special consideration and certain valves are NEVER O2 compatible. Engineering questions should be directed only to our TEK department at 414-774-1616 or firstname.lastname@example.org.
The creation of scuba air stations requires a variety of high pressure fittings and components as well as certain specialized control hardware. GMC stocks a good selection of these materials. CAUTION: THESE COMPONENTS ARE FOR AIR SYSTEMS AND ARE NOT INTENDED FOR USE WITH PURE OXYGEN OR NITROX.
Dive shop air systems usually contain a number of pressure gauges. GMC stocks a selection of instruments with different pressure ranges, dial sizes, and mounting styles. Most of these gauges have an accuracy of 1-2% of full scale. CAUTION: THESE GAUGES ARE NOT INTENDED FOR USE WITH PURE O2 / NITROX WITHOUT FURTHER MODIFICATION AND ARE NOT SUITABLE FOR GAS MIXING PROCEDURES. SPECIAL TYPES ARE OFFERED FOR THAT PURPOSE (page 54).
GMC offers a wide selection of high pressure fittings for modern air and mixed-gas stations. Most fittings are available in plated carbon steel , stainless steel and brass. Service Pressures: 5,000 psi for steel / stainless. 3,000 psi for brass. Uses: Steel for normal compressed air applications, stainless for harsh marine enviroments. For oxygen / Nitrox service, use brass or stainless, but NEVER carbon steel (rusts). Threads: All fittings are 1/4” NPT or #4 JIC as denoted. Ordering: INDIVIDUAL STOCK NUMBERS INDICATE FITTING TYPE AND METAL AS DESCRIBED. NOTE: None of the fittings on this page come oxygen cleaned.