Nominal pressure (PN): 0 Structure type: closed Applicable industry: hydraulic nominal diameter (DN): DN32-DN2000 Valve body material: rubber flow direction: one-way connection type: ferrule temperature environment: normal temperature shape: duckbill type action mode: single-acting valve action: water drainage sealing material: rubber pressure environment: normal pressure Applicable medium: water Tap water brand: Xinli valve disc type: blowdown water check valve purpose: check valve standard: national standard valve type: accessories available: flange sealing method: soft sealing action form: slow closing valve disc quantity: single disc structure null: only available in stock, individual function: slow closing type specification type number: XH81 type (channel position): straight-through drive mode: hydraulic control