A DIN 3202 F6 Ball Check Valve is a specialized non-return valve primarily used for wastewater, sewage, and viscous fluids. Unlike traditional swing check valves, this design uses a rubber-coated ball that moves up and down inside the valve body to allow or block flow.
The "F6" designation refers to the standardized face-to-face length, making it a globally recognized component in pumping stations and water treatment plants.
1. How It Works
Opening: When the pump starts, the fluid pressure pushes the ball up into a lateral "pocket" or chamber, out of the flow path. This creates a Full Bore opening with very low pressure drop.
Closing: When the pump stops, gravity and backpressure pull the ball back down onto the seat, creating a tight seal and preventing backflow.
Technical Attributes
1,Design Standard,EN 12050-4 / DIN EN 16767
2,Face-to-Face Dim.,DIN 3202 F6 / EN 558 Series 48
3,Size Range,"DN50 to DN600 (2"" to 24"")"
4,Pressure Class,PN10 / PN16
5,Body Material,Ductile Iron (GGG40 / GGG50)
6,Bonnet Material,Ductile Iron GGG50
7,Ball Material,Stainless steel or Carbon Steel Core + NBR/EPDM Coating
8,Sealing Design,Resilient Seat (Rubber-to-Metal)
9,Bore Type,Full Bore (Unobstructed straight-through)
10,Mounting Position,Horizontal or Vertical (Upward flow only)
11,Flange Standard,EN 1092-2 (PN10/PN16)
12,Coating,"Fusion Bonded Epoxy (FBE), Blue RAL 5005"
13,Coating Thickness,≥ 250 Microns
14,Bolting Material,Stainless Steel AISI 304 (A2)
15,Bonnet Gasket,NBR / EPDM
16,Shell Test Pressure,"1.5 × PN (e.g., 24 Bar for PN16)"
17,Seat Test Pressure,"1.1 × PN (e.g., 17.6 Bar for PN16)"
18,Working Temp.,−10°C to +80°C
19,Applicable Media,"Sewage, Viscous Liquids, Sludge, Waste Water"
20,Opening Pressure,Very low (Approx. 0.03 – 0.05 Bar)
21,Maintenance,Removable Bonnet for ball cleaning/replacement
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
