Hauck Orifice Meters are a simple, economical method of measuring air and gas flow on industrial combustion applications. OMG assemblies are available in threaded or weld-in designs. The threaded 100 series is suitable for gas or air service in 3/8″ to 6″ NPT. The weld-in 200 series is suitable for gas or air service in 3/4″ to 6″ pipe. Additionally, the 2000 series weld-in design is suitable for air service in 8″ to 28″ sizes. A wide range of standard orifice plates enables flow measurement of natural gas from a nominal 30 scfh to over 52000 scfh, and of air from a nominal 24 scfh to over 850,000 scfh. Customized orifice plates are available upon request.
• Threaded or welded design
• Heavy duty construction
• Simple one bolt plate removal
• Economical flow metering
• Easy to use
• Highly accurate results
The Hauck OMG series allows simple measurement of air and gas flow in industrial combustion systems. The OMG is designed for use in the most demanding and harsh installations. A wide selection of connection options and an extensive variety of orifice bore sizes make the OMG ideal for individual burner metering and total system metering. For example, on large multi-burner installations, an OMG can be installed at each burner’s air and gas connection and in the main air header or gas manifold for the furnace.
The heavy-duty construction of the OMG series allows pressure up to 25 psig for the 3/8″ to 4″ size. The 6″ through 28″ sizes are suitable for 10 psig service. All OMG components are suitable for temperatures up to 250°F. Higher temperature materials are available upon request. factory for higher pressure applications.
OMG assemblies not only provide accurate flow measurement, but also offer the convenience of serving as an auxiliary union connection in the piping. An OMG may be installed in any position provided the location chosen ensures easy access to both pressure cocks and sufficient clearance exists to remove the orifice plate. For maximum accuracy, use at least 6 pipe diameters upstream and 4 pipe diameters downstream of the OMG.
To assist in proper orifice meter and plate selection. The Hauck Orifice Calculator will calculate the flow of a given gas (Natural Gas, Propane, Butane, Coke Oven Gas or Air) under varying conditions. To properly select an orifice plate, the following information is needed: gas temperature, upstream pressure, gas type, and pipe size. The Orifice Calculator determines gas flow at a given differential pressure across the orifice plate.
Printable Literature
OMG Fact Sheet
OMG Specifications
OMG Parts List
OMG Instructions
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