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        Type 72

        Type 72

        產品詳細

        Type 72 Positive Bias Booster Relay
        • Four adjustable positive bias ranges, from 0-10 psi (0-0.7 BAR) to 2-150 psi (0.1-10.3 BAR)
        • Flow capacity up to 50 SCFM
        • Quick response to minute changes in downstream pressure
        • Dampening action of aspirator tube maintains stable output pressure
        • Output virtually unaffected by changes in supply pressure
        • Internal rolling diaphragm designed for millions of cycles
        • Honking and buzzing eliminated by action of integral baffle and aspirator tube
        • Can be disassembled and serviced without removing from line.
        Product Detail:
        The Type 72 Relay features an adjustable bias pressure which enables users to obtain an output pressure which is the sum of a controlled input signal pressure plus the bias. The relay offers an exceptionally high flow capacity (up to 50 SCFM/1400 LPM) with minimal pressure droop. Output pressure is accurately maintained under varying flow conditions by means of an aspirator tube, which adjusts the air supply valve opening in proportion to flow velocity. A balanced supply valve utilizing a rolling diaphragm makes the relay virtually immune to changes in supply pressure. Simple design makes maintenance easy, and the relay can be serviced without removing it from the line. The standard signal-to-output ratio is 1:1, but 1:2, 1:4 and 1:6 ratios are available on special request.

        The Type 72 Relay is used when high flow capacity is required in conjunction with a positive output pressure bias. Typical applications include:
        • Gas Flow Control
        • Tensioning Control
        • Clutch & brake controls
        • Volume boosting
        • Dancer roll loading
        • Calendar roll loading
        • Cylinder bucking control
        • Valve motor loading
        Part Numbers:
        Port Size (NPT)
        Range psig
        Range
        BAR
        Part Number
        Type 72 Positive Bias Booster Relay
        1:1 Ratio
        3/8
        0-10
        0-0.7
        961-062-000
        3/8
        0-30
        0-2.1
        961-063-000
        3/8
        1-60
        0.07-4.1
        961-064-000
        3/8
        2-150
        0.1-10.3
        961-065-000
        1/4
        0-10
        0-0.7
        961-052-000
        1/4
        0-30
        0-2.1
        961-053-000
        1/4
        1-60
        0.07-4.1
        961-054-000
        1/4
        2-150
        0.1-10.3
        961-055-000
        Options:
        Replace the last three digits of the part number with digits from the table below. If more than 2 combination needed, Consult Factory.
        OPTION
        3
        5
        7
        8
        9
        3
        Square Head
        003
        053
        073
        083
         
        5
        Epoxy Finish
        005
        075
        085
        095
        7
        Mounting Bracket
        007
        087
        097
        8
        Pressure Gauge
        008
        098
        9
        Tamper Resistant Cover
        009
        Pressure Gauge: Dual scale (English & Metric) 2-inch (50.8 mm) gauges are available
        Epoxy Finish: Gray epoxy coating for greater corrosion resistance.
        Mounting Bracket: Zinc-plated steel bracket for side mounting. (For T-79 order p/n 607-293-000)
        Tamper Resistant Cover: A cover placed over the adjusting screw to prevent ordinary hand adjustments.
        Cart:

         


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