The check valve may include a sealing cap (122) that contacts a valve seat (120) to seal the valve.
A three-way poppet valve that can restrict or eliminate backflow without the use of an external check valve.
A check valve (3) is accommodated in the valve body (2) concentrically therewith.
A check valve and a vacuum pack having the same valve.
A check valve ball may be disposed within the vacancy, wherein the vacancy may be configured to facilitate a displacement of the check valve ball between an open position and a closed position.
A plurality of one-way valves (3) is uniformly distributed on the one-way valve mounting plate (4).
A valve housing includes a first one-way valve fluidly coupled to the fluid reservoir, and a second one-way valve fluidly coupled to the intraosseous port.
At least one manually operable element is coupled to the second one-way valve operable to upset the second one-way valve and maintain it open.
To prevent air from escaping the inflatable object, the inflation valve can include a non-invertible one-way valve and/or an invertible one-way valve.
The invention relates to a non-return valve (10) with a valve housing (11) and a valve closing body (18) in the shape of a ball in particular.
A a non-return valve (30) is provided between the pumping system and the well, to prevent flow of fluid from the pumping system side back towards the well side of the non-return valve.
A ball check valve assembly (22) has a port (36) of circular cross section.
Preferably the non-return valve is lockable in its open state.
The check valve is deployed in a high purity metering pump.
A check valve may be provided to bypass the filter.
The main body includes an internal check valve bore.