COM-2B Series
Cross Over Manifold

COM-2B Series Cross Over Manifold

The COM-2B Series Cross Over Manifold is the next logical step in engineering evolution from the COM-1. This unit was designed to allow the user to enjoy a virtually uninterruptible supply of regulated gas with only a 0.01% change in outlet pressure with varying inlet pressure from bottles. Borrowing from the technology of the time proven CYL-20 Series cylinder regulators, the COM-2B employs two discrete single stage regulators built into a single body. These regulators serve as the primary and secondary

changeover regulators with the common outlet port connected to a single PR-1 Series regulator.

As the primary supply source depletes and falls below the operating outlet pressure of the primary regulator, the secondary supply source takes over, feeding through the secondary regulator to the PR-1 Series regulator. Once this occurs, the knob on the secondary regulator is rotated to a stop and the depleted supply source can be safely changed while your process is still in operation.

The COM-2B series is supplied complete with 2" diameter inlet pressure gauges for both regulators and a common outlet gauge. The unit is mounted on a 300 series stainless steel bracket that is easily surface mounted near the gas supply.

  • 316L stainless steel construction
  • Electropolished body with better than 25 Ra finish in diaphragm cavity
  • 20 micron inlet filter
  • Bubble tight shutoff
  • 2" diameter gauges
  • Outlet pressure ranges are 10, 25, 50, 100 and 250 psig
  • Change over pressures between 15-250 psig
  • Proof pressure is 2 times maximum working pressure
  • Burst pressure is 4 times maximum working pressure
  • Weight: 7.3 lbs (3.31 kg)
  • Mounting style is surface mounted bracket (see Outline & mounting dimensions)

    Maximum Temperature & Operating Inlet Pressures

    Stainless Steel
    Seat Material Maximum Temperature* Maximum Operating Inlet Pressure
    Tefzel® 150º F (66º C) @ 3600 psig (24.82 MPa)
    High Density Teflon® 150º F (66º C) @ 3600 psig (24.82 MPa)
    CF Teflon® 175º F (80º C) @ 3600 psig (24.82 MPa)
    PCTFE (formerly Kel-F 81) 175º F (80º C) @ 6000 psig (41.37 MPa)
    Polyimide 500º F (260º C) @ 3600 psig (24.82 MPa)
    175º F (80º C) @ 6000 psig (41.37 MPa)
    PEEK 500º F (260º C) @ 3600 psig (24.82 MPa)
    175º F (80º C) @ 6000 psig (41.37 MPa)

    * Temperatures in excess of 175º F require the use of a metal knob or the Tamper Proof option

    Brass
    Seat Material Maximum Temperature* Maximum Operating Inlet Pressure
    Tefzel® 150º F (66º C) @ 3600 psig (24.82 MPa)
    High Density Teflon® 150º F (66º C) @ 3600 psig (24.82 MPa)
    CF Teflon® 175º F (80º C) @ 3600 psig (24.82 MPa)
    PCTFE (formerly Kel-F 81) 175º F (80º C) @ 3600 psig (24.82 MPa)
    Polyimide 175º F (80º C) @ 3600 psig (24.82 MPa)
    PEEK 175º F (80º C) @ 3600 psig (24.82 MPa)


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