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Yarway Series 5540
Series 5540
Spring loaded, globe style lift check valve ASME Class 800 may be installed in horizontal and vertical piping applications.
Yarway Series 5540

Specs

Certifications
ASME B31.1, CE, PED
End Connection
Socket Weld, Threaded
Application
Boilers, Boiler, Biomass Boiler and Power Boiler, Clean Steam, Pumps, Valves & Manifolds, HRSG, General Service
Body Design
Short Pattern
Material
316 Stainless Steel, Alloy, Carbon Steel, Metal, Stainless, Steel, Stainless Steel
Operating Temperature
High Temperature, Greater Than 400 F (204 C)
Pressure Class
ASME
Process Connection Type
SWE, Threaded
Seat/Seal Type
Metal-to-Metal
Shutoff Class
Class V (FCI 70-2)
Standards
ASME B16.34
Style
Back Check Valves
Valve Size
NPS 1-1/2 / DN 40, NPS 2 / DN 50, NPS 1/2 / DN 15, NPS 1-1/4 / DN 32, NPS 1 / DN 25
Valve Size Standard
NPS
Media
Hot Water, Liquid, Steam, Water

Features

  • Disc is spring loaded for positive closure in any position.
  • The disc is hardened, ground and lapped, to ensure leak free sealing over the valve’s full pressure temperature range.
  • Seat is overlaid with Stellite or equal hardfacing.
  • The integral seat hardfacing is overlaid directly onto the body base material, eliminating any possibility of leakage behind the seat.
  • Flat, precision machined and lapped seating surfaces eliminate damage from high impact seating.
  • All internal surfaces are accurately machined to provide maximum performance.
  • Socket weld ends standard.
  • Standard body and bonnet materials are carbon steel (ASME SA105).
  • Code compliance with ASME 16.34 and the ASME boiler and pressure vessel code, Section I.