CHECK VALVES

VALVES-GATE-GLOBE-CHECK-CHECK-VALVES

Overview

STAINLESS STEEL CHECK VALVES provide passive, automatic backflow prevention for stainless steel piping systems. Designed to allow forward flow and prevent reverse flow, check valves protect pumps, regulators, filtration systems, chemical feed lines, and process equipment from reverse pressure, contamination, or system damage.

Ace Stainless offers a complete stainless check valve lineup including swing check, spring-loaded inline check, dual-plate wafer check, and ball check valves, with options for threaded, socket-weld, wafer, or flanged installation. Valves are available in 304/304L, 316/316L, duplex, and specialty alloys for corrosive and high-performance service environments.

Each valve is engineered for optimal cracking pressure, low pressure drop, and reliable sealing performance in water, chemicals, steam, gas, and high-purity systems.

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Technical Data

  • Swing Check Valves: Low cracking pressure, ideal for water & clean fluids
  • Inline Spring Check Valves: Controlled cracking pressure, all-orientation installation
  • Dual-Plate Wafer Check Valves: Compact design, low pressure drop, flanged or wafer
  • Ball Check Valves: Clean, sanitary-friendly design with minimal moving parts
  • Body Materials:
    • 304/304L Stainless Steel
    • 316/316L Stainless Steel
    • Duplex & Super Duplex (optional)
  • Connection Types:
    • NPT Threaded
    • Socket Weld
    • Wafer between flanges
    • ANSI B16.5 Flanged
  • Seat Options:
    • Metal-to-metal
    • PTFE / RPTFE soft seat
    • EPDM or Viton® (fluid-specific)
  • Performance Data:
    • Cracking pressure based on design (spring or disc)
    • Hydrostatic body & seat testing included
    • Low pressure drop designs available
    • Reverse-flow sealing ensured by design geometry

Applications

  • Preventing backflow in pump discharge lines
  • Protecting filters, regulators, and instrumentation
  • Maintaining pressure in chemical dosing systems
  • High-purity RO & DI water distribution loops
  • Steam condensate systems (swing or piston check)
  • Compressed air & inert gas backflow prevention
  • Marine, offshore, and corrosion-resistant piping
  • OEM skid packages and modular industrial systems

Industries Served

  • Water Treatment, Filtration & RO Systems
  • Chemical Processing & Corrosive Media Lines
  • Pharmaceutical & Sanitary Water Systems
  • Food & Beverage Processing Utilities
  • Marine & Shipboard Water Systems
  • Refinery & Petrochemical Flow Networks
  • HVAC & Industrial Chilled Water Systems
  • OEM Equipment Manufacturing

Integration & Automation

ACE provides complete check valve integration support including material verification, flow-direction labeling, seat selection guidance, and system-matching assistance for pumps, flow meters, and process control assemblies.

  • Check valve alignment with pump curves and system pressure requirements
  • Cracking pressure selection for chemical dosing & metering
  • Preassembled stainless spool pieces with integrated check valves
  • Custom tagging, serialization & BOM grouping for large projects
  • Orientation guidance for swing vs inline spring check valves

Ideal for EPC firms, OEMs, contractors, and industrial facilities requiring reliable, corrosion-resistant backflow protection.

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