Orifice plates, differential pressure flow measurement equipment, venturi tubes, ASME flow nozzles, restriction unions and more...
Over 50 Years of Differential Pressure Flow Metering Experience...

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ABOUT THE FLOW NOZZLES Used for Gas, Liquid and Steam Flow Measurement
Standard Sizes: 1/8" - 60", All Flange Ratings. Available in stainless steel, carbon steel, brass, fiberglass, spun aluminum, PVC, Hastalloy, monel and other materials. Available in all line sizes and throats. Sized for standard, critical or sonic flow conditions. Also can be provided as part of an A.S.M.E. nozzle meter run with piping, flanges, calibration, etc.

The "STANDARD" FLANGE FLOW NOZZLE style is the most commonly used Flow Nozzle. It is designed to be inserted between pipe flanges. A special machined shoulder on the back side of the flange assures the proper alignment of the nozzle with the pipe I.D. This style Flow Nozzle utilizes pipe wall taps whose location is determined by the Beta Ratio.

The "TAPPED" TYPE FLANGED FLOW NOZZLE is similar to the "FLANGE" style, but includes a downstream tap (usually a 1/2" connection) provided in the flange of the nozzle. This style nozzle is recommended in smaller line sizes where the downstream tap may interfere with the pipe weld or downstream mounting flange.

The "WELD-IN" FLOW NOZZLE style is designed to be installed permanently in a pipe section. This nozzle has a specially machined step on its outside diameter that is used to align a beveled inlet and outlet bored pipe section. This type nozzle is widely used where high temperature and pressure applications prohibit the use of pipe flanges such as in power plant and feed water installations. Pipe wall taps are utilized with this style.


The "HOLDING RING" FLOW NOZZLE style is designed so that the welding of dissimilar materials is eliminated, A special holding ring and locating pins are made of the same material as the pipe that the nozzle Is to be installed in. This allows for the nozzle to be offered in a wide range of materials. This style is not recommended for line sizes below 4 Inches.
"Throat tap" type flow nozzles also available.


Lambda Square, Inc 1-800-587-5423 Tel: 631-587-1000 Fax: 631-587-1011


Lambda Square, Inc. specializes
in the manufacture of differential pressure flow measurement equipment including venturi tubes, orifice plate and orifice flanges, meter tubes, orifice holding blocks, orifice restriction unions, sanitary plates, single and dual chamber fittings, ASME flow nozzles, manifolds, straightening vanes, elbow flow meters, seal pots and many other liquid, gas and steam control products.
Please contact Lambda Square with any questions concerning design and custom manufacture.
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