Hemco Industries recently unveiled that in addition to offering fall protection products -- gangways, loading racks/ramps, safety gates, etc. -- the company now offers a full line of Metal Goods Manufacturing (MGM) Co. Inc. Check Valves.
For over 50 years, MGM has been a leading engineer and manufacturer of check valves, fittings, tank gauges and laboratory testing equipment. All of MGM's valves are made of carbon stainless steel and come in a wide variety of models, including numerous sizes and specifications.
The MGM flow valve product line includes various threaded valves, flanged valves, check valves and more. MGM excels in producing tank gauge equipment and offering well fittings, magnetic gauging devices, control valves and other products. The laboratory equipment offered varies from Reid vapor pressure cylinders and apparatuses to sample cylinders and gasoline testing equipment.
Hemco Industries is continuously looking for new and innovative ways to provide a full line of chemical handling solutions. This series of valves can be installed in any orientation, with negligible effect on flow rate:
- The MGM Threaded Excess Flow Check Valves are designed for use where threaded connections are required. Bodies are machined from bar stock, not combined in sections, for added durability. The MGM Threaded Excess Flow Check Valves have male pipe thread on the top (inlet) and bottom ends and female pipe thread in the lower ends. The Threaded series is equipped with an orifice in the check mechanism to allow for pressure equalization and will reopen automatically after repairs are made.
- The Flanged Excess Flow Check Valves are designed for use where flanged connections are required. The Flanged Check Valves are double-flanged and equipped with either 150 or 300 raisedface, forged flanges. Like the Threaded Excess Flow Valve, this series of valves can also be installed in any orientation, with negligible effect on flow rate. Standard gaskets should be used on each end. Each valve has the proper flow direction indicated by an arrow stamped into the body.
- The MGM Back Pressure Check Valves are designed, threaded and flanged, and built to allow flow in one direction only. The check mechanism is held in the closed position by a spring, which stops flow in the reverse direction. When pressure from flow in the permitted direction overcomes the force of the spring, the check mechanism opens. When this flow stops or reverses, the check closes. The metal-to-metal seal allows for slight leakage after closure. These valves are recommended for use in all inflowing lines and may be used in any position. Back Pressure Check Valves are designed for installation in lines that flow into pressure tanks. They should be in inflowing lines when outward flow is never required. All MGM Back Pressure Check Valves do not reduce outlet pipe size. Back Pressure Check Valves should be installed as close as possible to the container, with the poppet pointed inward toward the container.
- The Wafer Excess Flow Check Valves are single-flanged, wafer-style valves with various designs that can fit inside Schedule 80 pipe or 160 tank nozzle pipes. The valve flange will fit inside the bolt pattern of 150 or 300 flanges. Standard gaskets should be used on both sides of the valve. The Wafer Flow Check Valves can be mounted in any orientation, with negligible effect on flow rate. Each valve will have the proper flow direction indicated by an arrow stenciled on the flange. The Wafer Back Pressure Check Valves are designed to allow flow in one direction only. The metal-to-metal seating allows for slight leakage in the closed position.
For more information, visit www. hemcoind.com or call (713) 681-2426.
