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Valve seats and disks lapped and polished

Mechanical Seal and Valve Lapping and Polishing
Valley Design provides lapping and polishing services of flat mechanical seals, pump parts, valve seats and discs. Valve components made from a large variety of materials include Hastelloy, Inconel, Monel, Stainless Steel, Carbon Steel, Copper, Nickel, Ceramics, Glass, Sapphire, Macor and many exotic materials. We have even polished large wind tunnels for NASA.

Mechanical Seal and Valve Lapping and Polishing image

Valley Design polishes hundreds of valve and seal components in weekly production quantities which are used in petroleum, nuclear, natural gas, steam, vapor and medical applications. Valve seats and seals are polished to ultra-flat optical flatnesses as low as 1/10 wave and mirror surface finishes as low as 10 Angstroms. Valley’s precision lapping and polishing process enables greatly improved performance for safety relief valves and pressure relief valves used worldwide for applications which utilize high pressure steam and vapor. This new process allows recessed valve seals and seats to be polished flatter than ever before, increasing the maximum allowable working pressure. Valves may be flat or have recessed and / or protruding areas, some with single rails and others with double rails needing polishing. Valves and seals processed by Valley range in all sizes from < 1″ diameter parts to 24″ diameter and larger sized parts. Valley laps and polishes both newly machined valves and refurbishes damaged valves.

Components processed include:

  • Valve seats
  • Valve disks
  • Mechanical seals
  • Special valve components
  • Valve repair polishing

Valves and seals can be made from materials including Hastalloy, Inconel, Monel, Stainless Steel, Carbon Steel, Duplex Stainless, Titanium, Bronze and Aluminum Bronze, Copper Nickel, Graphite, Glass and Ceramics. Surface finishes can be measured using Valley’s WYKO interferometer which has a resolution of 1 Angstrom Ra. Valley’s extensive expertise in lapping and polishing over the past 35 years has enabled us to provide the widest range of capabilities available in the industry, from simple flat parts as small as 1mm square or diameter up to complex polishing of large wind tunnels for NASA. Contact Valley Design for all your precision lapping and polishing needs, including specialty requirements and tight tolerances.

Contract lapping, grinding and polishing by Valley Design:

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