New at PipingDesign.com: 29 January 2001

I am considering setting up a web-based email service through the site. Users would be able to have a pipingdesign.com address. Let me know if anyone is interested.

Paul

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Cheng Rotation Vane
Cheng Fluid Systems

<<The Cheng Rotation Vane (CRV® ) consists of a set of stationary
vanes in a cylindrical body which is placed immediately upstream of an elbow or tee in a piping system. The CRV® eliminates elbow induced turbulence which negatively impacts the performance of pumps, compressors, flow meters, and other equipment. The CRV® inputs to the flow a counteracting gyroscopic motion to the resultant elbow induced gyroscopic motion, and enables the fluid to negotiate the turn through the elbow and then exit the elbow with a flat velocity profile. This results in an even distribution of process fluid through any cross-section of the elbow and transforms the elbow into the equivalent of a straight section of pipe. >>

Large Angle Diffuser
Cheng Fluid Systems

<<The Large Angle Diffuser (LAD® ) ensures an even flow
distribution in sudden expansions which occur ahead of the heat exchangers, boilers, condensors, and blow down systems. Without a LAD® long pipe runs or elaborate custom engineered baffles that consume pressure drop are required. The LAD® consists of a series of overlapping truncated cones, with a common focal point, that is located within the expansion. Despite a sudden increase in pipe diameter, the LAD® produces a flat velocity flow profile, that results in an even distribution of the process fluid during the concentric expansion. Using a LAD® avoids the limiting expansion of 15o between the expanding pipe diameters. >>

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Hammer Unions
Boltex Mfg. Co.

<<Small diameter piping connections that require a positive seal
and easy assembly and disassembly are made using unions. Unions are commonly used for inserting metering and regulating devices into a piping system or for connecting piping systems to vessels. Since the mating ends of the union are interchangeable, changing out a device can be accomplished with a minimum loss of time. A standard pipe union is made in three parts consisting of a nut, a male end and a female end. When the male and female ends are joined, the nut then provides the necessary pressure to seal the joint. Hammer unions, as manufactured and stocked by BOLTEX, are the same as other unions except that the nut has three lugs on the outside diameter that allow for the union to be sealed with a hammer instead of a wrench.>>

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About Flanges
Boltex Mfg. Co.

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Straightening Vanes
North Star Flow Products

<<The use of straightening vanes in meter runs serves a twofold
purpose: The turbulence often created in a complex piping system is straightened and smoothed to a normal flow pattern; the amount of straight pipe required preceding an orifice is reduced.>> Received on Mon Jan 29 20:12:00 2001