... ,125mm,150mm,200mm 3. Seal test pressure: 2.4Mpa Wet Alarm Valve1. FM&UL approved.2. Size:50mm, 65mm,80mm,125mm ... : 2.4Mpa4. Packing: Wooden Box5. Material: Ductile Cast Iron Wet Alarm Valve6. Applicable area: workshop, warehouse, hotels, shops, recreational place,Hospital ...