Women Owned Business Enterprise
RED-WHITE VALVE CORP.  |  SKU: 30077615  |  MPN: 462 2

Dual Plate Iron Check Valve | 462 Series | Wafer Style | NBR Seat

$83.00
Size | Connection Type | Min Order Qty (MOQ)
  • 150# WOG Cast Iron Construction – Built tough for general service, outperforms plastic body alternatives in system durability.
  • Dual Stainless Steel Plates – Spring-loaded design ensures faster closure vs. swing check valves, reducing water hammer.
  • Wafer Style for Tight Spaces – Fits snugly between ANSI flanges; easy to install and remove without heavy tools.
  • NBR Seat for Versatile Use – Seals well with hot/cold water, glycol blends, or non-corrosive fluids; rated to 180°F.
  • Stainless Steel Internals – Plates, pins, and springs are all 300-series stainless steel for corrosion resistance and extended service life.
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The 462 Series Dual Plate Iron Check Valve offers a compact, cost-effective solution for non-return flow applications in HVAC, plumbing, and industrial systems. Engineered with a cast iron wafer-style body, dual stainless steel spring-loaded plates, and a resilient NBR (nitrile rubber) seat, this valve delivers reliable backflow prevention in a lightweight footprint.

Unlike traditional swing check valves, the dual plate design ensures rapid closure and lower pressure drop, reducing water hammer and increasing efficiency. With a 150# WOG pressure rating and a temperature capacity up to 180°F, the 462 is built to perform in demanding liquid handling applications.

Key Features:

  • 150 PSI WOG Rated – Suited for a wide range of water and general service applications
  • Dual Plate, Spring-Loaded Discs – Faster shutoff and reduced slam compared to single-disc designs
  • Wafer Style Body – Compact profile installs easily between ANSI flanges
  • NBR (Buna-N) Seat – Ideal for systems using clean water and compatible fluids up to 180°F
  • Stainless Steel Internals – Corrosion-resistant discs, pins, and springs for long-term reliability

Technical Specifications:

Pressure Rating:

  • 150 WOG
  • Max temperature: 180°F

Body Material:

  • Cast Iron (A126-B)

Disc Material:

  • Stainless Steel (ASTM A276 S30400)

Spring & Pin Material:

  • Stainless Steel (ASTM A313 S31600 / A276 S30400)

Seat Material:

  • NBR (Nitrile Rubber)

Dimension, Weight

Size ØA (in) ØE (in) B (in) GR (in) F (in) Weight (lb)
2" 4.02 2.56 1.69 1.13 0.75 4
2½" 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 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 / Temperature Rating Value
Pressure Rating 150# WOG
Maximum Temperature 180 °F

Material

# 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 Only on 6"–12" sizes.

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