Top 5 Materials for High-Pressure Water Valve Bodies, Seats and Spools

Designing a high-pressure water hydraulic circuit is no easy task. So far, you’ve invested the time in specifying your system parameters, considering the flow media, pressure and flow velocity. And you’ve analyzed the additives flowing through your hydraulic circuit and consulted your material incompatibility charts to see how they might interact over the long run.

Choosing-Valve-Materials-blog3.jpgNow you’re ready to begin construction and select your materials  for your high-pressure water valve. As already discussed in this blog series, materials of construction have a long-term impact on the performance of the valve and the overall hydraulic system.

When selecting your industrial valve materials for the valve bodies, seats and spools, the corrosion level, temperature and pressure of the application will impact your decision. Also, certain materials are more durable and less susceptible to wear. Of course, cost is an important consideration when analyzing various metals and alloys.

To help guide your selection, here are some characteristics of popular valve materials:

1. Ductile iron

  • Low in cost
  • Readily available
  • Easily absorbs shock
  • Poor corrosion resistance


2. Brass and bronze

  • Low in cost
  • Readily available
  • Improved corrosion resistance over ductile iron


3. 316 stainless steel

  • Excellent corrosion resistance
  • High tensile strength at elevated temperatures
  • More costly than cast iron, brass and bronze valves


4. Monel (nickel-copper alloy)

  • Superior corrosion resistance
  • Ideal for cladding of valve trim parts


5. Inconel (alloy of nickel, chromium and iron)

  • Ideal for handling corrosive media
  • Maintains strength at high temperatures


Now that you’ve chosen your ideal valve material, your next step is selecting the material for your seals, gaskets and packing. To learn more about this important step in industrial valve material selection, stay tuned for the next blog post. In the meantime, view our infographic "Why Hydraulic Valve Materials Matter."

To learn more about selecting the right material for your high-pressure water valve, download "How to Choose the Proper High-Pressure Water Valve Material."

How to Choose Proper Valve Materials