452 Dual Plate Iron Check Valve
Ensure reliable unidirectional flow in demanding environments with the 452 Dual Plate Iron Check Valve, engineered for superior durability and corrosion resistance. Featuring nickel-plated ductile iron discs and a robust NBR seat, this valve excels in high-pressure water, oil, and gas systems, offering leak-free performance and minimal maintenance.
Key Features:
- Nickel-Plated Discs: Ductile iron discs with nickel plating resist corrosion, abrasion, and wear in aggressive or high-velocity media.
- NBR Seat Durability: Nitrile seats provide excellent resistance to oils, fuels, and hydrocarbons, ensuring long-term sealing integrity.
- Wafer-Style Efficiency: Compact, flangeless design installs seamlessly between ANSI B16.1/16.5 flanges, reducing labor and space requirements by 40%.
- 150# WOG Versatility: Rated for 150 PSI across water, oil, and gas applications, adaptable to mixed-media systems.
- Dual Plate Precision: Spring-assisted dual discs snap shut instantly to eliminate water hammer and backflow risks.
Technical Specifications:
- Body Material: Cast Iron
- Disc Material: Nickel-Plated Ductile Iron
- Seat Material: NBR (Nitrile Butadiene Rubber)
- End Connection: Wafer-Style (ANSI Compliant)
- Pressure Class: 150# WOG
- Temperature Range: -20°F to 250°F (-29°C to 121°C)*
Ideal Applications:
- Oil and gas pipelines
- Chemical processing plants
- Wastewater treatment systems
- HVAC and industrial cooling circuits
- Fuel transfer and storage facilities
Why Choose This Valve?
The 452 Dual Plate Check Valve combines rugged construction with advanced materials for extreme environments. The nickel-plated discs withstand corrosive fluids and abrasive particles, while the NBR seat ensures reliable sealing in hydrocarbon-rich systems. Its wafer design cuts installation time and costs, making it ideal for engineers prioritizing longevity, efficiency, and compliance.
Temperature range based on NBR seat limitations. Confirm media compatibility for specific applications.
Dimension, 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 | 3 |
| 2-½” | 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 | 15 |
| 6” | 8.62 | 6.69 | 2.99 | 3.09 | 1.22 | 20 |
| 8” | 10.87 | 8.82 | 3.50 | 4.11 | 1.30 | 35 |
| 10” | 13.27 | 10.43 | 4.49 | 5.00 | 1.97 | 61 |
| 12” | 15.98 | 12.20 | 4.49 | 5.83 | 1.69 | 116 |
| Pressure Rating | Temperature Rating |
|---|---|
| 150# WOG | 180 °F max. temp. |
Material
| Item | Part | Material | Specification |
|---|---|---|---|
| 1 | Body | Cast Iron | A126-B |
| 2 | Disc (plate) | Ductile iron/Ni plated | A216 |
| 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 | NBR |
¹ Only on 6”-12”