Series mountable gas valve
AssigneeHoneywell International Inc.
InventorsGlenn R. Bergum, David M. Edlund
Life of this patent
Estimating the term…
Abstract
A gas flow control valve configured to facilitate back-to-back mounting with a second, similarly constructed valve. The gas valve includes a valve body defining an inlet port and an outlet port, the inlet and outlet ports being surrounded by seal forming O-rings of different diameters. Flanges surrounding the inlet and outlet ports are configured with distinct attachment features for accommodating bolts for securing one valve in series with another or with a pipe flange or other auxiliary device, the inlet flange having either a slot dimensioned to hold and prevent rotation of a bolt head or nut, or a clearance slot permitting use of a wrench, and the outlet flange having the other slot configuration.
Claims18
In a fluid control device of the type including an inlet portion having a first surface with an inlet port therein and an outlet portion having a second surface with an outlet port therein, the inlet and outlet portions being of complementary configurations which permit the outlet port of either of two devices having such inlet and outlet portion configurations to be directly joined in a fluid tight manner to the inlet port of the other such device, the improvement which comprises:
- a first groove in the first surface, said first groove being of a first diameter and surrounding the inlet port for accommodating a first O-ring;
- and
- a second groove in the second surface, said second groove being of a second diameter different from the first diameter and surrounding the outlet port for
- accommodating a second O-ring, whereby, when two of the fluid control devices are connected in an outlet to inlet arrangement, sealing may be achieved with dual concentrically arranged O-rings.
A back-to-back valve train comprising:
- a first valve comprising:
- a first valve body including a first valve inlet portion, defining a first valve inlet port, and a first valve outlet portion defining a first valve outlet port,
- a first valve outlet O-ring surrounding said first valve outlet port;
- and
- a second valve comprising:
- a second valve body including a second valve inlet portion, defining a second valve inlet port, and a second valve outlet portion defining a second valve outlet port,
- a second valve inlet O-ring surrounding said second valve inlet port;
- wherein said first valve outlet portion is configured to abut said second valve inlet portion such that said first and second valves are mounted back-to-back, and further wherein first said valve outlet O-ring has a diameter different from a diameter of said second valve inlet O-ring such that each of said first valve outlet O-ring and said second valve inlet O-ring form a seal between said first valve outlet portion and said second valve inlet portion.
Dependencies are inferred from the claim text.