A diverter/mixing valve is provided that includes a main outer housing and a barrel assembly disposed inside the main outer housing. When actuated, an actuator rotates the barrel assembly between an open end inlet position where a first fluid stream flows into a first inlet port and a second fluid stream is blocked from flowing into a second inlet port, and an open side inlet position where the second fluid stream flows into the second inlet port and the first fluid stream is blocked from flowing into the first inlet port.

A valve body having a ring of dissimilar material and a method of forming the valve body are described. The valve body includes an inlet, an outlet and a ring of dissimilar material. The method includes forming a valve core, splitting the valve core, placing a metal ring of dissimilar material between two pieces of the valve core, casting a valve body around the valve core, and fusing the metal ring to the valve body.

A diverter/mixing valve is provided that includes a main outer housing and a barrel assembly disposed inside the main outer housing. When actuated, an actuator rotates the barrel assembly between an open end inlet position where a first fluid stream flows into a first inlet port and a second fluid stream is blocked from flowing into a second inlet port, and an open side inlet position where the second fluid stream flows into the second inlet port and the first fluid stream is blocked from flowing into the first inlet port.

A valve body having a ring of dissimilar material and a method of forming the valve body are described. The valve body includes an inlet, an outlet and a ring of dissimilar material. The method includes forming a valve core, splitting the valve core, placing a metal ring of dissimilar material between two pieces of the valve core, casting a valve body around the valve core, and fusing the metal ring to the valve body.

A valve body having a ring of dissimilar material and a method of forming the valve body are described. The valve body includes an inlet, an outlet and a ring of dissimilar material. The method includes forming a valve core, splitting the valve core, placing a metal ring of dissimilar material between two pieces of the valve core, casting a valve body around the valve core, and fusing the metal ring to the valve body.

A pumping device includes a seal cap unit including a cap, an air relief member connected with the cap, and a regulating member connected with the air relief member. The cap has an air inlet hole and an air outlet hole. The air outlet hole has a through hole. The air relief member is mounted on the air outlet hole and has a guide hole and a plurality of apertures. The regulating member has an air relief hole and a plurality of draining holes. Thus, the air relief hole of the regulating member and the pressure relief member provide a double pressure relief function to release the excessive air pressure in the barrel.

A valve body having a ring of dissimilar material and a method of forming the valve body are described. The valve body includes an inlet, an outlet and a ring of dissimilar material. The method includes forming a valve core, splitting the valve core, placing a metal ring of dissimilar material between two pieces of the valve core, casting a valve body around the valve core, and fusing the metal ring to the valve body.

A pumping device includes a seal cap unit including a cap, an air relief member connected with the cap, and a regulating member connected with the air relief member. The cap has an air inlet hole and an air outlet hole. The air outlet hole has a through hole. The air relief member is mounted on the air outlet hole and has a guide hole and a plurality of apertures. The regulating member has an air relief hole and a plurality of draining holes. Thus, the air relief hole of the regulating member and the pressure relief member provide a double pressure relief function to release the excessive air pressure in the barrel.