MT Valves & Fittings product. Non-return valve with NBR ball and threaded connection. Made of EN-GJS-400 ductile cast iron with RAL5013 epoxy paint coating, NBR elastomer ball and connection threads in accordance with ISO228. The non-return valve is designed to completely shut off the flow of fluid in one direction, preventing a reversal of the flow. It withstands a maximum working pressure of 10 bar (150 psi) and a minimum opening pressure of 0.01 bar. It has an operating temperature range of 0°C to 80°C. Model 5142 is ideal for application in hot and cold water, dirty water and septic tanks, oils and neutral chemicals. It can be installed vertically with the ball at the top and vertically, as long as the flow is upward. MT cast iron valves are manufactured in accordance with the standard UNE-EN-12334. MT Industrial Division products are high-quality parts, specifically designed for industrial contexts. The entire range is manufactured under strict quality parameters and complies with the highest certifications in fluid handling. Available references and published specifications: • 5142020 — measures: CHECK VALVE THREADED END NBR BALL PN 10 3/4"; weight (kg): 1.2; small / large box: 1 / 4 • 5142025 — measures: CHECK VALVE THREADED END NBR BALL PN 10 1"; weight (kg): 1.2; small / large box: 1 / 4 • 5142032 — measures: CHECK VALVE THREADED END NBR BALL PN 10 1 1/4"; weight (kg): 1.5; small / large box: 1 / 4 • 5142040 — measures: CHECK VALVE THREADED END NBR BALL PN 10 1 1/2"; weight (kg): 2; small / large box: 1 / 4 • 5142050 — measures: CHECK VALVE THREADED END NBR BALL PN 10 2"; weight (kg): 3; small / large box: 1 / 4 • 5142065 — measures: CHECK VALVE THREADED END NBR BALL PN 10 21/2"; weight (kg): 5.4; small / large box: 1 / 4 • 5142080 — measures: CHECK VALVE THREADED END NBR BALL PN 10 3"; weight (kg): 8.3; small / large box: 1 / 1 Price and local availability on request. Source: https://mtspain.net/en/cast-iron-check-valve-nbr-ball-threaded-end/