Deutsch 
English Original Rapa HSV 04 siphon protection valve for use in oil-bearing suction and supply lines. It prevents heating oil from leaking out automatically in the event of a break in the suction line due to the siphon effect. For EL heating oil in accordance with DIN 51603 for installation in cellars.
Technical data:
Valve type: Direct operated 2/2 seat valve, Operating principle: NC, Nominal size: NW5, operating pressure: -0.9 to 3 bar, flow rate: max. 120 l/h, ambient and medium temperature: -20°C to + 60°C, voltage: 230 V / 50 Hz, rated power consumption: 7 W, duty cycle 100%, protection class IP 54, any installation position, connection thread G 3/8’. TÜV-tested according to DIN 4736, part 2, edition 01/94 and draft 08/96.
Technical data:
Valve type: Direct operated 2/2 seat valve, Operating principle: NC, Nominal size: NW5, operating pressure: -0.9 to 3 bar, flow rate: max. 120 l/h, ambient and medium temperature: -20°C to + 60°C, voltage: 230 V / 50 Hz, rated power consumption: 7 W, duty cycle 100%, protection class IP 54, any installation position, connection thread G 3/8’. TÜV-tested according to DIN 4736, part 2, edition 01/94 and draft 08/96.