RIV 290 Ambra Series Vacuum Relief Valve, 1-1/2" BSPP Inlet, -0.3 bar, 050290000009
Technical overview
RIV 290 Ambra is a vacuum relief valve designed to protect tanks from excessive vacuum by allowing air intake when negative pressure occurs. It has a 1-1/2" ISO 228/1 (BSPP) threaded inlet and vents to atmosphere under a protective cap. Safety features include a mechanical stop that controls maximum opening, a second stop that prevents loosening from vibration and keeps a minimum calibration of about -0.3 bar (-4 psi), and an obturator design that helps prevent internal parts from falling into the equipment.
Features
- Protects tanks by relieving excessive vacuum through controlled air admission.
- Uses a 1-1/2" ISO 228/1 (BSPP) threaded inlet for direct installation.
- Limits maximum opening using a mechanical stop for safer operation.
- Prevents loosening from vibration and maintains about -0.3 bar (-4 psi) minimum calibration.
- Uses an obturator design that helps prevent internal parts from falling into the equipment.
- Allows tamper-proof sealing after setting using drilled tongues on the cap.
- Made in Itlay.
Specifications
Body MaterialBrass CW617N
SeriesAmbra 290 Series
Valve TypeVacuum relief
Inlet Port1-1/2" ISO 228/1 (BSPP)
Outlet PortAtmospheric vent
Min Calibration-0.3 bar (-4 psi)
Temperature Range0 to 180°C (without liquid)
Seal MaterialFKM
ApplicationVacuum tank protection