Engineered for high-reliability flow reversal prevention, the flanged tilting disc check valve delivers exceptional performance in horizontal and vertical pipeline installations. Its tilting disc mechanism minimizes water hammer and pressure drop while providing tight shut-off even under low backpressure conditions. Compared to conventional swing designs, this model offers faster closing response and reduced slamming, making it ideal for critical service in water treatment, HVAC, petrochemical, and marine systems. For applications requiring a lighter, space-saving alternative, our Wafer tilting type check valve conforms to tight footprints between flanges without compromising flow efficiency. When project specifications demand a durable, industry-standard configuration with full flange ratings, the robust Tilting Disc Check Valve series provides a comprehensive range of materials and pressure classes to match exact service conditions.
The flanged tilting disc check valve is built around a precisely balanced disc that pivots on a shaft positioned above the seating surface, enabling rapid, non-slam closure as flow decelerates. The body and bonnet are manufactured from durable cast materials, with seat options in resilient EPDM, NBR, or metal-to-metal configurations to handle diverse media temperatures and chemical compatibilities. Internal geometry is optimized through computational fluid dynamics to minimize turbulence and maximize Cv values, contributing to lower energy costs across pumping systems. This valve can be installed in horizontal lines with the cover facing upward and in vertical flows with upward direction, while its integral flange drilling accommodates ASME Class 150, 300, or PN-rated pipework. Accessible top-entry design simplifies in-line inspection and disc replacement without removing the valve body from the pipeline, significantly cutting maintenance downtime in continuous-process plants.
| Parameter | Specification |
|---|---|
| Nominal Diameter | DN 50 – DN 1200 (2″ – 48″) |
| Pressure Rating | PN 10 / PN 16 / PN 25 / PN 40; Class 150 / Class 300 |
| Body Material | Cast iron, Ductile iron, WCB, CF8, CF8M, duplex 4A/5A |
| Disc Material | CF8, CF8M, duplex stainless steel, with optional rubber lining |
| Seat & Seal | EPDM, NBR, Viton, PTFE, metal (Stellite / stainless steel) |
| Operating Temperature | -20°C to +200°C (soft seats); up to +400°C (metal seats) |
| Connections | Raised face flanges to ASME B16.5 / EN 1092 / JIS B2220 |
| Design Standard | API 6D, API 594, EN 13709; fugitive emission control per ISO 15848-1 (optional) |
| Flow Direction | Unidirectional — horizontal (cover up) or vertical (upward flow only) |
| Testing | Shell: 1.5 × rated pressure; Seat: 1.1 × rated pressure — acc. API 598 |
| Certification | CE, ATEX (zone 2 option on request), NACE MR0175 for sour service |
| Optional Features | Counterweight for heavy-duty vertical installations, limit switches, drain plug |
| Body | Disc | Seat | Typical Application |
|---|---|---|---|
| Ductile Iron | CF8M | NBR | Municipal water & wastewater |
| Cast Steel WCB | CF8 | Metal (13Cr) | Steam and thermal oil systems |
| CF8M | CF8M | PTFE | Chemical processing |
| Duplex 5A | Duplex 5A | Metal (Stellite) | Offshore / seawater |