The A216 reducing ball valve is a cast ball valve with different inlet and outlet diameters. Its core component is a ball with a through-hole, which rotates 90 degrees to open or close the flow. Compared to a standard ball valve, its two ends connect to different pipe sizes (e.g., inlet DN50, outlet DN32), typically employing an eccentric design or a variable diameter flow path to accommodate varying pipe diameters. The main structure includes:
1. Valve body: Cast or forged, material options include carbon steel, stainless steel, etc., with pressure ratings commonly ranging from PN16 to PN64 (refer to GB/T 12237 standard);
2. Ball: Surface often plated with hard chrome or coated with ceramic to improve wear resistance;
3. Sealing ring: Mostly uses PTFE or metal hard seals to ensure airtightness under high temperature and pressure.
Order specification
Name: Ball Valve.
Body & Bonnet: ASTM A216 WCB.
Stem: ASTM A182 F6A.
Size: DN 40×DN 32 (1.5 inch×1.25 inch).
Pressure: PN20(150LB).
Standard: API 6D.
Ends: Flanged.
Type of Face: Raised Face.
Bore: Reduced Bore.
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