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634 Series Switchover

High flow pressure differential switchover for industrial gas applications
6343162-01-580 shown

The 634 Series Switchover provides a continuous supply of industrial gas through two heavy-duty 6700 Series regulators. The 634 switchover is a semi-automatic switchover that operates by opposing pressure differential. Setting one regulator to a higher pressure prioritizes the bank. To change bank priority, the outlet pressures of both regulators must be adjusted accordingly. With delivery pressures from 0-15 PSIG (0-1 BAR) to 0-200 PSIG (0-14 BAR), the 634 Series switchover system is suitable for a broad range of high flow industrial gas applications. Line or station regulators should be installed at the point-of-use to ensure constant downstream delivery pressure. Additionally, the safe use of fuel gases requires flashback arrestors on hoses.

  • Semi-automatic pressure differential switchover allows continuous gas supply
  • Two heavy-duty 6700 Series regulators provide high flow capacity
  • Pressure ranges 0-15 PSIG (0-1 BAR) to 0-200 PSIG (0-14 BAR) support a broad range of applications
  • Integral maniflex manifold system facilitates easy installation and expansion
  • Left and right cylinder banks maintain reserve gas supply
  • Max inlet pressure: 3,000 PSIG (210 BAR)
  • Temperature range: -40°F to 140°F (-40°C to 60°C)
  • Max flow: 6000 SCFH (2830 LPM)
  • Outlet connection: 1/2 in FNPT
  • Weight: 23 lbs (10.4 kg)
  • Regulator bodies: Brass barstock
  • Bonnets: Forged brass
  • Master valves: Forged brass
  • Diaphragms: Fabric-reinforced chloroprene
  • Internal seals: PTFE and chloroprene
  • Seats: Chloroprene, EPDM, and FKM
  • Piping: Brass barstock
  • Conformances: Cleanliness meets or exceeds CGA G-4.1; ANSI/ASME B40.1; CRN OF11809.2; CRN OH15806.5
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See Catalog Page for Ordering Information

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Document
Language
ID Number
Revision
634 Series Semi-AutoSwitch HF Catalog Page
English
IN634SA
M
628 Series Maniflex Systems Installation and Operation
English
ADI3172
E
Regulators Installation and Operation Instructions
English
ADI1608
L
CRN File OH15806
English
CRNOH15806
26
CRN File OF11809
English
CRNOF11809
33

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. PSWarnings.ca.gov.

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