Dual Plate Iron Check Valve | 465 Series | Wafer Style | EPDM Seat | 150 PSI WOG
Dual Plate Iron Check Valve | 465 Series | Wafer Style | EPDM Seat | 150 PSI WOG
465 Series Dual Plate Iron Check Valves provide efficient and compact backflow prevention for HVAC, plumbing, and industrial applications. The wafer-style cast iron body and dual stainless steel spring-loaded plates ensure fast, reliable closure and reduced water hammer compared to traditional swing check valves.
Equipped with a resilient EPDM seat, this valve delivers leak-tight performance up to 150 PSI WOG and 180°F. Its lightweight wafer design fits easily between standard ANSI flanges, offering space-saving installation without compromising flow capacity or durability.
Key Features & Benefits
- Compact Wafer Style Design — Space-saving body installs between ANSI flanges for simplified setup and maintenance.
- 150 PSI WOG Pressure Rating — Built for demanding commercial and industrial fluid systems.
- Dual Spring-Loaded Plates — Provide fast closure and minimal pressure drop to prevent water hammer.
- EPDM Seat — Resilient sealing surface ensures long-term performance in water, glycol, and hydronic systems.
- Stainless Steel Internals — Discs, pins, and springs made from ASTM A276/A313 stainless steel for corrosion resistance.
Pressure & Temperature Ratings
| Pressure Rating | Temperature Rating |
|---|---|
| 150# WOG | 180°F (Max) |
Dimensions & Weight
| Size | ΦA [in] | ΦE [in] | B [in] | GR [in] | F [in] | Weight [lb] |
|---|---|---|---|---|---|---|
| 2" | 4.02 | 2.56 | 1.69 | 1.13 | 0.75 | 4 |
| 2-1/2" | 4.76 | 3.15 | 1.81 | 1.42 | 0.79 | 5 |
| 3" | 5.24 | 3.70 | 2.52 | 1.71 | 1.10 | 7 |
| 4" | 6.73 | 4.61 | 2.52 | 0.23 | 1.06 | 11 |
| 5" | 7.60 | 5.71 | 2.76 | 2.59 | 1.18 | 14 |
| 6" | 8.62 | 6.69 | 2.99 | 3.09 | 1.22 | 20 |
| 8" | 10.87 | 8.82 | 3.50 | 4.11 | 1.30 | 38 |
| 10" | 13.27 | 10.43 | 4.49 | 5.00 | 1.97 | 61 |
| 12" | 15.98 | 12.20 | 4.49 | 5.83 | 1.69 | 116 |
Material Construction
| # | Part | Material | Specification |
|---|---|---|---|
| 1 | Body | Cast Iron | A126-B |
| 2 | Disc (Plate) | Stainless Steel | ASTM A276 S30400 |
| 3 | Spring | Stainless Steel | ASTM A313 S31600 |
| 4 | Hinge Pin | Stainless Steel | ASTM A276 S30400 |
| 5 | Stop Pin | Stainless Steel | ASTM A276 S30400 |
| 6 | Plug | Steel | — |
| 7 | Body Washer | PTFE | PTFE |
| 8 | Spring Washer | PTFE | PTFE |
| 9 | Eye Bolt¹ | Steel | ASTM A307-A |
| 10 | Seat | EPDM | — |
¹ Eye bolt included only on 6"–12" sizes.
Applications: Suitable for clean water, heating/cooling loops, and glycol-based hydronic systems. Ideal for horizontal or vertical (upward flow) installation.
Warning (California Prop 65): This product can expose you to chemicals including lead, known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.