shyoko sch80 pvc check valve 3/4'', true union ball check valve, ball-type control devices (no spring), rated at 150 psi @73f, clear [available 1/2'',1'',1.25'',1.5'',2''] shyoko shyoko valves, committed to providing each customer with the highest standard of customer service, with the highest value for money in the valve industry. <br> our purpose is providing the highest quality shopping experience for customers. <br> <br> main material:pvc、upvc<br> size:3/4" <br> end connection:socket (slip) <br> woking pressure: 150psi @ 73f degree <br> certificate:iso <br> <br> advantages:<br> 1. clear pvc for corrosion resistance, high strength, and less weight than fittings made from metal. <br> 2. operates without the need for any adjustments or settings. <br> 3. full flow design for insignificant flow loss. <br> 4. resistant to uv rays. <br> 5. allows for easy removal without breaking down the piping connection. <br> <br> how to work: <br> true union ball check valves operate without the need for any adjustments or settings. <br>line pressure moves the solid plastic ball off the elastomer seat, opening the valve. <br>when the inlet flow stops, back pressure moves the ball back onto the seat – stopping the flow. <br> <br> 100% satisfaction guaranteed <br> we guarantee that the quality of our products will be checked before shipment.