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Application:

This valve is installed in pipeline, as device to prevent the medium flow back, the valve with micro-resistance   can prevent excessive pressure rising due to adverse flow when it is shutting down.

Features:

The valve disc rely on the force of medium flow to open the valve, it belongs to automatic valve. It is mainly used for the single way flow of media, allowing the media to flow in one direction to prevent accidents, to protect the system better. This type of valve in the pipeline should generally be installed horizontally;

The valve can be added with a buffer device.It can protect the system better by buffering.

Structure diagram:

Nominal diameter（mm）：DN40～DN1200

Nominal pressure（Ｍpa）：0.1～4.0MPA

Suitable temperature：≤150℃

Suitable medium: Water, sea water, steam, etc.

Type of sealing : soft sealing and hard sealing.

Type of control : automatic.

Material:grey cast iron, ductile cast iron, alloy cast iron, carbon steel, stainless steel, alloy steel.

Standard: GB, BS, ASME, JIS, DIN, EN, ISO and other country, also can be produced according to user’s requirements.