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526 Series Switchover

Stainless steel pressure differential automatic switchover with brass internals for ultra-high purity gas applications
5264011-01-001 shown

The 526 Series Switchover operates by opposing pressure differential. Once the primary cylinder depletes, it automatically switches from the primary side to the reserve side to deliver a continuous supply of high purity, non-corrosive gas. The system comes with either flexible hoses for use with two cylinders, or manifold connectors for use with the CONCOA 52 Series maniflex manifold system. Due to pressure differential considerations, an integral line regulator is available to maintain constant downstream pressure. Additional options for the 526 Series switchover include purge valves to allow purging after cylinder changeover and outlet valves to allow isolation of the pipeline. For more flexibility in supply mode including optimization of high pressure, high purity gas applications, consider the CONCOA fully automatic, computer-controlled IntelliSwitch.

  • 400 Series brass regulators with CAPSULE® seat design provide 360° filtration
  • Metal-to-metal diaphragm seal prevents gas contamination
  • Single knob priority valve permits easy switch of cylinder priority
  • Optional line regulator maintains stable line pressure during a changeover
  • Check valves in optional hose inlet glands prevents backflow
  • Optional Altos 2™ remote alarm delivers audible and visible alert before switchover occurs
  • Optional purge valve enables purging after cylinder changeover
  • Optional outlet valve allows isolation of pipeline
  • Optional intrinsic safety barriers support flammable gas service or use in hazardous environments
  • Max inlet pressure: 3000 PSIG (210 BAR); 4500 PSIG (310 BAR) optional
  • Gauges: 2 in (50 mm) diameter brass
  • Temperature range: -40°F to 140°F (-40°C to 60°C)
  • Outlet connections: 1/4 in MNPT (without line regulator); 1/4 in FNPT (with line regulator)
  • Helium leak integrity: 1 x 10⁻⁸ scc/sec
  • Cv: 0.1
  • Weight: 8.25 lbs. (3.71 kg)
  • Regulator bodies: Brass barstock
  • Diaphragms: 316L stainless steel
  • Seats: PTFE (line regulators); PCTFE (inlet regulators)
  • Filters: 10-micron sintered bronze
  • Internal seals: PTFE
  • Standard transducers (optional): 0-6000 PSIG (4-20 mA output)
  • Intrinsically safe transducers (optional): 0-5000 PSIG (4-20 mA output) 0-5000 PSIG (4-20 mA output)
  • Conformances: Cleanliness meets or exceeds CGA G-4.1; PED 2014/68/EU; ANSI/ASME B40.1; CRN OH5216.5; CRN OH15806.5
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ID Number
526 Series Switchovers Catalog Page
526 Series Automatic Switchover System with Inlet Pressure Transducers Installation and Operation
La Central de Cambio Automático Serie 526 con Transductores de Presión Installation and Operation
Centrale d’inversion automatique Série 526 avec transducteurs de pression d’entrée Installation and Operation
CONCOA Life Sciences Brochure
CRN File OH15806
CRN File OH5216

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.

CAPSULE® is a registered trademark of Controls Corporation of America; Altos 2™ is a registered trademark of Controls Corporation of America;