Nuclear & Power Division Check & Excess Flow Check Valves

Description

Extreme reliability is inherent due to rugged design, simplicity of operation, and a minimum number of moving parts. Isolation standoffs prevent excessive heat transfer to the solenoid operator. Internal parts are contoured to retard buildup of contamination and sludge. Compact, light weight design provides excellent resistance to seismic vibration and shock. A completely enclosed and encapsulated coil ensures continuous operation during a LOCA event.

Application

These check valves are engineered for liquid or gas applications in the Nuclear industry. Typical applications are feed water control systems, dump lines, make-up water, miscellaneous process systems, N2 systems,monitoring and sampling systems.

Design Features and Benefits

  • Position sensing switches available for excess flow check valve
  • Solenoid operated reset capability
  • ASME Section III, Classes 1, 2 and 3
  • Valve ratings – ANSI class 150 to 2500.
  • Radiation resistance: Standard: 2×10*8 rads.
  • Qualified life: Up to 40 years + LOCA.

Excess Flow Check Valve

V520 – 50

Safety Shutoff

  • Liquid media
  • Operating pressure of 0 – 2500 PSIG
  • Maximum fluid temperature of 650°F
  • 3/8″ to 2″ line size
  • Typical closure flow rate for 3/4″ size: 1.5 to 3.0 GPM

Check Valve

V520

Non-Return Flow Control

  • Liquid or Gas media
  • Operating pressure of 0 – 2500 PSIG
  • Maximum fluid temperature of 650°F
  • 3/8″ to 3″ line size
  • Cv value of 1 to 30