Abstract: In a thermal fluid system, a control valve includes a flow valve and a solenoid pilot valve. The flow valve has an inlet and an outlet; a control chamber for receiving a pilot pressure; and a valve member operable by the pilot pressure to selectively open and close a fluid path from the inlet to the outlet. The pilot pressure acts in a closing direction of the flow valve. The pilot valve provides the pilot pressure to the control chamber and is a 3/2 way valve with a first port in fluid communication with the control chamber, a second port to be connected to a pressure source, and a third port. The pilot valve has a first position connecting the first port with the second port and a second position connecting the first port with the third port.

Abstract: In a thermal fluid system, a control valve includes a flow valve and a solenoid pilot valve. The flow valve has an inlet and an outlet; a control chamber for receiving a pilot pressure; and a valve member operable by the pilot pressure to selectively open and close a fluid path from the inlet to the outlet. The pilot pressure acts in a closing direction of the flow valve. The pilot valve provides the pilot pressure to the control chamber and is a 3/2 way valve with a first port in fluid communication with the control chamber, a second port to be connected to a pressure source, and a third port. The pilot valve has a first position connecting the first port with the second port and a second position connecting the first port with the third port.

Abstract: A pair of pliers includes an upper structure, a lower structure including a lower handle, an over center linkage, and a lock member. The lock member is movable between a locking configuration and a release configuration. When the lock member is in the locking configuration, it prevents pivoting movement of the lower handle from a closed configuration and retains jaws of the pliers in a closed position. When the lock member is in the release configuration, it enables the lower handle to be moved away from the closed configuration and allows the jaws to move to an open position. Movement of the lock member from the locking configuration to the release configuration requires sequential movement of the lock member in a first direction and then in a second direction. The second direction is different than the first direction.

Abstract: Pliers include upper structure including an upper jaw and handle extending therefrom, and lower structure including a lower jaw and handle. The lower jaw may pivot relative to the upper jaw, and the lower handle may pivot relative to the lower jaw. An overcenter linkage operatively connects between the upper and lower structure, biasing the lower handle and jaw away from the upper handle and jaw, respectively, when in a jaw-opening position, and enabling the lower jaw and handle to be retained in a closed configuration when the linkage is in a jaw-closing position. A lock member is movable between a locking configuration preventing pivoting of the lower handle from the closed configuration and retaining the jaws in a closed position, and a release configuration enabling the lower handle to be moved away from the closed configuration, allowing the jaws to move to an open position.

Abstract: Pliers include upper structure including an upper jaw and handle extending therefrom, and lower structure including a lower jaw and handle. The lower jaw may pivot relative to the upper jaw, and the lower handle may pivot relative to the lower jaw. An overcenter linkage operatively connects between the upper and lower structure, biasing the lower handle and jaw away from the upper handle and jaw, respectively, when in a jaw-opening position, and enabling the lower jaw and handle to be retained in a closed configuration when the linkage is in a jaw-closing position. A lock member is movable between a locking configuration preventing pivoting of the lower handle from the closed configuration and retaining the jaws in a closed position, and a release configuration enabling the lower handle to be moved away from the closed configuration, allowing the jaws to move to an open position.

Abstract: A valve flow-directing vessel (42) comprising a sleeve (44) having a threaded installation portion (84) for connection to a receiving member, a plunger (46) movable within the sleeve (44) between a closed position and an opened position, and an orifice insert (48/50) fixedly attached to the sleeve (44). The orifice insert (48/50) defines an orifice (132) that is sealed when the plunger (46) is in the closed position and unsealed when the plunger (46) is in the opened position. The orifice (132) is the entrance to a passageway (130) having an exit (134) communicating with a delivery passage of the receiving member, and this exit (134) is positioned beyond the threaded installation portion (84) of the sleeve (44).

Abstract: A hub (12) for coupling a valve (10) having lead wires (14) to a conduit (16) carrying electrical lines to allow a watertight connection of the lead wires (14) to the electrical lines. The solenoid assembly (40) comprises a casing (66) including a boss (72) through which the lead wires (14) extend. The hub (12) comprises a conduit-coupling portion (84) and a boss-attaching portion (86). The boss-attaching portion (86) includes a rim (98) which is crimped to the outer surface of the boss (72) to attach the hub (12) to the solenoid assembly (40). The hub (12) is able to rotate relative to the boss (72) whereby it may be coupled to the conduit (16) without rotation of the solenoid assembly (40) and/or the conduit (16).