Air valve-Uni Specifications Kinetic  3/4"、1"、1-1/2" BSPT      Combination 3/4"、1"、1-1/2" BSPT Standard Pressure  PN10 Product Composition They are designed to efficiently extract air trapped in pipes, filters, tanks, and other places where unwanted air might cause performance problems. The release valves are located at the outlet of pipes whose slope varies according to the hydraulic gradient, in areas where pipes are located above ground level, in long pipes with uniform slope, at the input of measuring instruments, the output of reducing valves, in diameter reductions, pumps, filtration systems, and on both sides of an underground crossing road. For correct operation, the valve should always be in a vertical position. Installing a manual ball valve under the Air Valve is recommended to make maintenance and repair operations easier without shutting the whole system. OUR SERVICES 1. Quick, efficient, and professional response within 24 hours, 14 hours of online services. 2. 10 years of manufacturing experience in the agriculture field. 3. Technical support and solution by the chief engineer. 4. Strict quality control system & team, high reputation in the market. 5. Full range of irrigation products for choice. 6. OEM/ODM services. 7. Accept sample order before Mass Order.