Brass One Way Check Valves: Classification and Characteristics

A brass one way check valve refers to a type of valve whose opening and closing member is a circular valve disc that relies on its own weight and the medium pressure to act and block the reverse flow of the medium, classified as an automatic valve. The brass one way check valve only allows the medium to flow in one direction and prevents reverse flow. Typically, this type of valve operates automatically; under the action of fluid pressure flowing in one direction, the valve disc opens. When the fluid flows in the reverse direction, the fluid pressure and the weight of the valve disc act on the valve seat, thereby cutting off the flow.

Classification of Brass One Way Check Valve Products

The motion mode of the valve disc of a brass one way check valve can be classified into lift type and swing type.

The lift type check valve is structurally similar to a globe valve but lacks the valve stem that drives the valve disc. The medium flows in from the inlet end (lower side) and out from the outlet end (upper side). When the inlet pressure is greater than the sum of the valve disc's weight and its flow resistance, the brass one way check valve opens. Conversely, the valve closes when the medium flows back.

The swing type check valve has a valve disc that is inclined and can rotate around an axis. The working principle is similar to that of the lift type brass one way check valve.

Performance Characteristics of Brass One Way Check Valve

The brass one way check valve is commonly used as a foot valve in water pumping devices, preventing water from flowing back. When combined with a globe valve, it can serve as a safety isolation function. The downside is its high resistance and poor sealing when closed.

All parts of the valve are made of high-quality brass material, which offers excellent corrosion resistance and oxidation resistance.

The sealing surfaces of the valve seat and valve disc are made of brass material, providing a good sealing effect with soft-to-soft contact sealing.

The valve disc features a swing type structure, which automatically swings open under the influence of pressure when the medium enters. When the medium stops flowing and the pressure returns to zero, the valve disc automatically closes.

The bonnet part is designed with threads, effectively reducing costs and lowering the valve's price, minimizing waste.

Brass one way check valves, with their unique structure and material characteristics, play an important role in many fields. Whether lift type or swing type, brass one way check valves can effectively block the reverse flow of mediums and ensure the normal operation of systems. When selecting a brass one way check valve, Carbo is undoubtedly a brand known for reliable product quality and excellent performance, capable of meeting the usage needs in various complex environments.