US 12,135,094 B2
Plumbing fitting
Richard Timothy Nortcliffe, Sheffield (GB); and Alasdair Worsley, Worksop (GB)
Assigned to AALBERTS INTEGRATED PIPING SYSTEMS LIMITED, Doncaster (GB)
Filed by AALBERTS INTEGRATED PIPING SYSTEMS LIMITED, Doncaster (GB)
Filed on Feb. 14, 2023, as Appl. No. 18/109,545.
Claims priority of application No. 2202007 (GB), filed on Feb. 15, 2022.
Prior Publication US 2023/0258277 A1, Aug. 17, 2023
Int. Cl. F16K 27/12 (2006.01); F16K 31/60 (2006.01)
CPC F16K 27/12 (2013.01) [F16K 31/607 (2013.01); Y10T 137/5109 (2015.04)] 18 Claims
OG exemplary drawing
 
1. A kit comprising:
a plumbing fitting comprising a pressure independent control valve (PICV) comprising a mechanism, the mechanism comprising a series of valves through which a flow rate of a fluid can be set independent of pressure, wherein the plumbing fitting comprises:
a body having a flow path extending therethrough and a cavity within the flow path to releasably receive the mechanism via an aperture;
an operational cap comprising the mechanism, the operational cap configured to move between a locked position where the operational cap is retained on the body and an unlocked position where the operational cap is releasable from the body;
wherein the operational cap is retained in the locked position by one or more bayonet fixings;
a protective cap, the protective cap configured to move between a locked position where the protective cap is retained on the body and an unlocked position where the protective cap is releasable from the body;
wherein the protective cap is retained in the locked position by one or more bayonet fixings; and
wherein the aperture is configured to be sealed by either of the protective cap or operational cap when the respective cap is in the locked position.