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valve seats
Applications: Large and medium-sized industrial ball valves for use in the petroleum, natural gas, water treatment, pharmaceutical and chemical, heating, and other sectors. Products can be manufactured according to customer-provided designs and dimensions.
Detail
Product Specifications: NPS 1–40 (DN25–1000)
Pressure Rating: Class 150–2500 (PN16–420) | Base Materials: ASTM A105, A350 LF2, A182 F304, A182 F316, A182 F6A, A182 F51, A182 F53, A182 F55, A564 630 (17-4PH), Monel, Inconel.
Surface Treatment: Electroless Nickel Plating, Hard Chrome Plating, Tungsten Carbide, Chromium Carbide, Colmonoy, Inconel, and other specialty materials. | Packaging: Wooden crates, pallets, containers.
1. Introduction
Metal valve seats are all-metal sealing parts matched with valve balls, designed for high temperature, high pressure, abrasive and particle-containing media. They realize metal-to-metal hard sealing, suitable for harsh working conditions where soft seats cannot be used.
2. Common Materials
- Stainless Steel: 304, 316L, 310S
- Duplex Steel: 2205, 2507
- Nickel Alloy: Monel K500, Inconel 625, Incoloy 825
- Hard Alloy: Stellite 6 / Stellite 12
- Sprayed Coating: Tungsten Carbide, Titanium Oxide Ceramic
3. Key Features
- Resistant to high temperature and high pressure.
- Anti-wear, anti-erosion, anti-scuffing.
- Good performance for steam, slurry and particle media.
- Long service life, stable sealing under severe conditions.
- Suitable for cryogenic and elevated temperature cycling.
4. Applicable Working Conditions
- Temperature: -196℃ ~ 650℃
- High pressure, high temperature steam
- Slurry, powder, ash and granular medium
- Petrochemical, power plant, metallurgy, oil & gas
5. Matching Valve Balls
Floating ball, Trunnion ball, V-type ball, T-type ball with hard facing coating.
6. Advantage
Metal hard seat replaces soft seat in extreme temperature and abrasive service, no aging or deformation, greatly extending valve service life.
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