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636 Series AutoSwitch HF

Enclosed switchover with brass internals and pressure switches for high flow industrial gas applications
6363000-01-580 shown

The 636 Series AutoSwitch HF provides a continuous supply of nonflammable industrial gases at a constant delivery pressure from two high pressure banks. Pressure switches enable visual alarms and an optional remote alarm to notify the user of the need to replenish a depleted bank. The CONCOA 636 Series AutoSwitch HF is designed to be used in conjunction with the CONCOA Altos 2™ remote alarm to provide audible and visible warnings of cylinder depletion.

  • Alarm-capable alert notifies remote users of low pressure conditions
  • High flow capacity supports a wide variety of industrial applications
  • Automatic pressure differential ensures fail-safe operation
  • Integral line regulator maintains stable line pressure during a changeover
  • User-friendly priority valve allows easy one-knob switch of cylinder priority
  • Max inlet pressure: 3000 PSIG (210 BAR)
  • Temperature range: -40°F to 140°F (-40°C to 60°C)
  • Max flow: 6000 SCFH (2830 LPM)
  • Inlet/Outlet connections: 1/2 in FNPT
  • Weight: 54 lbs (25 kg)
  • Priority valve and line regulator bodies: Brass barstock
  • Diaphragms: Fabric-reinforced chloroprene
  • Enclosure: Powder-coated steel
  • Tubing and fittings: 316 stainless steel, brass, and copper
  • Internal seals: Chloroprene, PTFE, and FKM
  • Seats: EPDM, PCTFE, and FKM
  • Conformances: Cleanliness meets or exceeds CGA G-4.1; ANSI/ASME B40.1; CRN OF11809.2
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ID Number
636 Series AutoSwitch HF Catalog Page
635/636 Series AutoSwitch Systems Installation and Operation
CRN File OF11809

WARNING: This product can expose you to chemicals including Lead, Chromium, Nickel, and 1-3 Butadiene, which are known to the state of California to cause cancer, birth defects, or other reproductive harm. And, this product can expose you to chemicals including Bisphenol A (BPA) which is known to the State of California to cause female reproductive harm. For more information go to www.

Altos 2™ is a registered trademark of Controls Corporation of America