Screw with wing nut interchangeable for the American market Field of application : Industrial – Transports Coupling & Uncoupling: Screw type Coupling under pressure: Male under pressure, Female under pressure Both under pressure Uncoupling under pressure Shut off: Double flat valve, Free passage Materials: Tempered & zinced steel, Brass Dimensions: 3/4″ – 1″ – 1 1/4″ – 1 1/2″ Working pressure: 200 bar to 250 bar Flow rate: 62 l/min to 300 l/min.