Features: Quality: check valves made of solid brass structure, corrosion resistant, durable, good ductility at high temperatures, low magnetic conductivity, long service life, can be used for a long time. Working temperature range: -4 to +212 F (-20 to +100 °C). MaximumS working pressures 25/18/12 bar (PN-25/PN-18/PN-12). High safety: the spring check valves is also very easy to install and prevents liquid backflow. Just a few turns, the valves is tightened and no leakage. Perfect choice: Our check valves can be connectes to all pipes, hoses and 1inch male thread connections according to BSPstandards, this type of valves can be very good to prevent liquid leakage, the installation should be installed horizontally to allow only unidirectional flows of the medium to avoid accidents. Wide range of applications: suitable for water, steams, oil, nitricacid, urea and so on. Widely used in mechanical equipment, water supply and drainage, industrial plant, live aquatics plant, etc. Specifications: Material: brass Length: approx 4.8cm/2inch Package Includes: 1xCheck Valves note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.