ChillWaves Brass In-Line Spring Check Valve DN20 3/4" Male Thread, One-Way Non-return Vertical Check Valve，Prevent Water Back-flow(2-PACK) - CWJX258

• Size - 3/4" Male Thread Check Valve. Note，This thread is not an NPT thread, please refer to the dimensional drawing for specific diameters. MATERIAL - Made of high-quality brass, with strong wear and corrosion resistance, high compressive strength, durability, low magnetic permeability and high temperature ductility，with stainless steel spring, vertical and horizontal installation. Use - Used to prevent backflow of the medium in the pipeline, through the medium itself to flow and thus automatically open and close the valve flap, only allows the medium to flow in one direction, it is suitable for most gases, water, oil. WORKING PRESSURE & TEMPERATURE - 230PSI maximum working pressure, temperature range -4°F to +250°F (-20°C to +121°C) PRODUCT DESIGN - Can prevent fluid backflow, good sealing, easy to install and disassemble, thickened valve body, inner wall polishing treatment, smooth and not easy to scale, copper stem and copper core to prevent leakage., Manufacturer: ChillWaves