Circuit balancing valve

Details Circuit balancing valve Circuit balancing valve

2006-06-06

2006-06-06

Chambers, A. Michael (Department: 3753)

Fluid handling

With indicator, register, recorder, alarm or inspection means

Plural

C137S557000, C251S118000, C251S367000

Reexamination Certificate

active

07055547

ABSTRACT:
A circuit balancing valve includes a valve body having fluid flow passage extending therethrough. The fluid flow passage includes a fluid inlet passage-side in fluid communication with a supply line, and a fluid flow outlet passage-side in fluid communication with an outfeed line. A valve seat is provided in the valve body between the inlet and outlet flow passages, and a sealing member is selectively movable in the operation of the valve towards or away from the valve seat to restrict or permit fluid to flow from the inlet passage-side to the outlet passage-side. Fin members are disposed in the outlet passage. The fin members are provided as an axially elongated rib, with a radial spacing from each other of between about 45° and 135°. The inlet flow passage includes an enlarged diameter cylindrical section and a reduced diameter cylindrical section. A frustoconically shaped section disposed between the enlarged and reduced diameter sections, is characterized by a sidewall which tapers inwardly in a downstream direction. A respective pressure measuring probe is provided in communication with each cylindrical section to permit a measurement of the fluid pressures therein.

REFERENCES:
patent: 4419 (1846-03-01), Clarke
patent: 1521765 (1925-01-01), Guerrant
patent: 1547962 (1925-07-01), Seewer
patent: 2064795 (1936-12-01), Gerdts
patent: 2621015 (1952-12-01), MacGregor
patent: 2770252 (1956-11-01), Bass, Sr.
patent: 2852237 (1958-09-01), Rees
patent: 5303733 (1994-04-01), Nelson
Armstrong Pumps, Inc.-CBV Brochure, Crane Limited, Webpage page www.cranefs.com/ASP/ProdCelltem.asp?, Product Code= 11495&Whereclause=+WH, PN25 Bronze Balancing Valve, pp. 1-8, Sep. 1, 1999.
Armstrong Pumps, Inc. —CBV Brochure, Sep. 1, 1999 (pp. 1-8).
Crane Limited—website page www.cranefs.com/ASP/ProdCalterm.asp? Product Code+ 11495 & Whereclause=+ WH, PN25 Bronze Balancing Valve, 2 pages.

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