Monel 400 Valves


Arrow Piping Solutions is a trusted manufacturer and supplier of Monel Valves, including Monel 400 and Monel K500 variants, fabricated as per ASTM A494 M35-1 standards. These valves are known for their superior corrosion resistance and are ideal for use in harsh environments, including seawater, steam, alkalis, and caustic solutions.


Our product range includes Monel 400 Needle Valves, Instrumentation Valves, Globe Valves, Plug Valves, Manifold Valves, and more. We manufacture all types of Monel valves with forged bar stock and precision engineering, delivering high performance in pressure control and regulation applications.

Monel 400 Valve Specifications

Size1/2" to 4" (DN25–DN200)
Connection TypesWelded, Socket, Flanged, Clamped, Threaded
Thread StandardsNPT, PT, BSPP, G
Pressure ClassPN10/16, up to 20000 PSI
Material GradesMonel® 400 (UNS N04400), Monel K500 (UNS N05500)
Seal MaterialsPPL, PTFE, Soft Graphite
Manufacturing ProcessForged Bar Stock
Function Types2-Way, 3-Way, 4-Way, 5-Way, Diverter, Normally Open/Closed
OperationManual, Electric, Pneumatic
Leakage RateSoft Seal: Zero Leakage, Hard Seal: ≤ Rated Flow 10⁻⁵
Applicable StandardsASME B16.34, API 598, BS 1868, MSS SP-25, MSS SP-55
Approval CertificationsAPI 598, MSS SP-110, ANSI B16.11, NACE Certified

Applications of Monel Valves

Monel Valves by Arrow Piping Solutions are widely used in industries requiring resistance to aggressive environments and high-pressure operations, including:

  • Oil & Gas
  • Power Generation
  • Petrochemicals
  • Marine & Offshore
  • Food & Beverages
  • Dairy and Cosmetics
  • Chemical Industry
  • Pharmaceuticals
  • Water Treatment
  • Desalination Plants
  • Instrumentation Systems
  • Skid Units
  • Gas Supply Systems
  • HVAC

Equivalent Grades of Monel Alloy

Grade/AlloyUNS No.ForgingCastingBar Stock
Monel 400N04400B564 N04400A494 M35-1B164 N04400
Monel K500N05500--B865 N05500

We also provide alternatives to Swagelok and Parker including Os-Lok Monel Instrumentation Valves, which offer 100% leak-proof operation for oil, gas, water, and inert gases.

Port of Dispatch: Mumbai, India

Packaging: PVC wrap, Wooden Box, or Customized as per Client’s Need