Fluid system device

A valve having a body defining a valve chamber with a rotary valve member mounted therein and an operating stem extending out of the body, the improvement comprising:

• first and second stop surfaces on the exterior of said valve, said surfaces being positioned on laterally opposite sides of said stem and defined by radially opposite sides pf an integrally formed rib extending longitudinally of said body from both sides of said stem;
• and,
• a handle having a uniform thickness throughout its length connected to said stem for rotation thereof between first and second spaced points, said handle including first and second depending stop members bent downwardly from the plane of said handle along lines which are generally perpendicular to each other and with said first stop member formed on the end of said handle and said second stop member formed on the side of said handle, each of said stop members having inner and outer surfaces and front and rear edges, said front edge of said first stop member being positioned to engage said first stop surface at said first position of rotation with said inner surface of said second stop member laterally spaced from said second stop surface and said front edge of said second stop member being positioned to engage said second stop surface at said second position of rotation with said inner surface of said first stop member laterally spaced from said first stop surface, each of said stop members being located such that when said front edges engage their respective stop surfaces, the contact forces act parallel to the plane in which the line of bend of the respective stop member lies.