Manifold for replacing relief valves
First Claim
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1. In a relief valve manifold having a piped flange for a base, a contiguous, enlarged and elongated sidewall mounted thereon for a body and a pressure-tight, horizontal wall sealed thereon for a top, the improvement comprising:
- (a) a plurality of port means lying in a horizontal plane and depending in side-by-side relation from the top wall of the body within the enlarged portion of the same, having a bleeder valve means communicating with the outside thereof mounted in the sidewall of the same, said port means being mounted to straddle a vertical plane containing a horizontal swing-axis running therethrough adjacent to and below the plane of the port means within said body and a plurality of valve means for closing said port means;
(b) a port-closing means operationally-mounted through the sidewalls of said body on said swing-axis;
(c) at least one handle means having an aperture therethrough offset from and extending in the direction of the swing axis and an inner side face perpendicular thereto operationally-connected to the port-closing means outside of and on the swing-axis of the manifold for actuating each valve means for closing each port; and
(d) interlocking means mounted on the top wall of the body outside of said manifold operationally-engaging the aperture in one of said handle means and abutting the inner side face of the other handle means for selectively permitting the closing of one of said port means one port at a time while positively maintaining the remaining ports open for servicing the valve means in the closed port means.
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Abstract
A manifold mounting pairs of relief valves in side-by-side clusters having a slide-rod interlock cooperating with swing-mounted clapper discs and operationally engaging handles connected thereto for selectively isolating one valve at a time from pressure in the manifold in preparation for its removal and replacement under pressure therefrom.
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Citations
11 Claims
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1. In a relief valve manifold having a piped flange for a base, a contiguous, enlarged and elongated sidewall mounted thereon for a body and a pressure-tight, horizontal wall sealed thereon for a top, the improvement comprising:
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(a) a plurality of port means lying in a horizontal plane and depending in side-by-side relation from the top wall of the body within the enlarged portion of the same, having a bleeder valve means communicating with the outside thereof mounted in the sidewall of the same, said port means being mounted to straddle a vertical plane containing a horizontal swing-axis running therethrough adjacent to and below the plane of the port means within said body and a plurality of valve means for closing said port means; (b) a port-closing means operationally-mounted through the sidewalls of said body on said swing-axis; (c) at least one handle means having an aperture therethrough offset from and extending in the direction of the swing axis and an inner side face perpendicular thereto operationally-connected to the port-closing means outside of and on the swing-axis of the manifold for actuating each valve means for closing each port; and (d) interlocking means mounted on the top wall of the body outside of said manifold operationally-engaging the aperture in one of said handle means and abutting the inner side face of the other handle means for selectively permitting the closing of one of said port means one port at a time while positively maintaining the remaining ports open for servicing the valve means in the closed port means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. In an apparatus for isolating one valve at a time from pressure in a manifold which is in fluid communication with a source of pressure, wherein said manifold mounts two pairs of valves in four ports in side-by-side relation to straddle a common vertical plane and fluid communicates with the inlets to said valves and said source of pressure through said ports in a common horizontal plane within said manifold, the improvement comprising two clapper members each swing-mounted within the manifold on an axis which extends in a plane parallel to the plane of the ports, said axis displaced from the horizontal plane of the ports in a direction toward the source of pressure, and directed in perpendicular relation to planes containing the axes of opposed pairs of said ports and in eccentric relation thereto, a pair of handles having radial slots therethrough offset from and extending in the direction of the swing mounted axis and an inner face perpendicular thereto operationally connected to each clapper member on said swing-axis outside of said manifold, a compression spring centered rod slidingly mounted on a horizontal axis in said common vertical plane above the horizontal plane containing said ports and arranged for engaging one of the slots of said handles at one end thereof and abutting the inner side face of the other handle at its other end so that one port of the four ports in the manifold closes at any one time for servicing the valve in that port.
Specification