_x000D_ Product name: Check valve - Type: Vertical -: DN15 _x000D_ _x000D_ Made of high quality brass, durable, durable and long-lasting _x000D_ _x000D_ The automatic in-line check valve is made of brass and stainless steel with surface precision treatment, good corrosion resistance and high pressure _x000D_ _x000D_ This type of valve is good for preventing liquid leakage, should be installed horizontally when installing, so that the medium can only flow in a single steer to to avoid accidents< /span> _x000D_ _x000D_ Female to female check valve. Suitable for water and central heating installations. _x000D_ _x000D_ Properties: _x000D_ _x000D_ Made of high quality brass, strong and durable for long-term use. _x000D_ _x000D_ Good corrosion and oxidation resistance. _x000D_ _x000D_ Good sealing ability prevents liquid leakage. _x000D_ _x000D_ _x000D_ Mainly used in petroleum, chemical, pharmaceutical, fertilizer and power lines. _x000D_ _x000D_ Instructions: _x000D_ _x000D_ The check valve should be installed on the horizontal pipe. The vertical check valve should be installed on the vertical pipe and the medium flow from bottom to top. _x000D_ _x000D_ The installation position of the check valve is not limited, it is usually installed on the horizontal pipe, and can also be installed on the vertical pipe and further the inclined pipe. _x000D_ _x000D_ During installation, please ensure that the flow direction of the medium corresponds to the arrow on the valve body._x000D_ _x000D_ Properties: _x000D_ _x000D_ Color: Gold. _x000D_ _x000D_ Material: brass. _x000D_ _x000D_ Type: vertical. _x000D_ _x000D_ Thread size: _x000D_ _x000D_ 20mm _x000D_ _x000D_ Flow direction: bidirectional. _x000D_ _x000D_ Operating temperature: -10120.