Brass check valve, 2" thread female x female Check valves are an important element of every installation using substances under pressure. They are also used in water systems. Their main task is to ensure the flow of the working medium in only one direction and block its flow in the opposite direction. Technical data: - Material: brass; - Insert material: brass; - Size: 2"; - Thread type: female x female; - Maximum static pressure: 1.2 MPa (12 bar); - Maximum operating temperature: +100°C; - Seal type: NBR (flat).