Valve body design for use with pumps handling abrasive fluids

Details Valve body design for use with pumps handling abrasive fluids Valve body design for use with pumps handling abrasive fluids

1994-07-25

1995-07-11

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

13753325, 137902, 251368, A16K 1506

Patent

active

054311861

ABSTRACT:
An improved plastic valve body design and construction which has strength and durability similar to that of steel valve bodies but with significantly reduced manufacturing time and cost. The valve body comprises a unique and nonobvious combination of a previously unused plastic material and a complex rib design that results in performance similar to that of steel valves. The valve body is preferably comprised of Delrin or a nylon/Kevlar composite material. A plurality of ribbed members connect outer and inner faces of the valve body to provide increased strength and durability. The plastic valve body has the ability to deform to mate with the valve seat and thus extrusion gaps are eliminated. This allows use of more desirable softer polyurethane inserts.

REFERENCES:
patent: 3770009 (1973-11-01), Miller
patent: 4194527 (1980-03-01), Schonwald
patent: 4408629 (1983-10-01), Lafont
patent: 4529006 (1985-07-01), Block
patent: 5062452 (1991-11-01), Johnson
"Kevlar Wearforce Composites" brochure (date unknown).
"Valves & Seats" brochure, Harrisburg, Inc., (1989).

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