• Hydraulicspneumatics Com Sites Hydraulicspneumatics com Files Uploads 2012 03 Marsh Bellofram Type 77

    Vacuum pressure regulator

    March 6, 2012
    Type 77 industrial vacuum pressure regulator monitors and controls pressures from 29 in.-Hg vacuum to 150 psi. It offers flow capacities to 40 scfm. Fixed negative 15 psig bias spring maintains vacuum outputs and controls system pressure. Adjustable opposing range spring increases controlled pressure outputs.
    Type 77 industrial vacuum pressure regulator monitors and controls pressures from 29 in.-Hg vacuum to 150 psi. It offers flow capacities to 40 scfm. Fixed negative 15 psig bias spring maintains vacuum outputs and controls system pressure. Adjustable opposing range spring increases controlled pre
    Hydraulicspneumatics Com Sites Hydraulicspneumatics com Files Uploads 2012 03 Marsh Bellofram Type 77
    ssure outputs. They are available with 1⁄4 or 3⁄8 NPT and 1⁄4 or 3⁄8 BSPT port size. Balanced supply valve keeps output virtually unaffected by supply pressure changes. Stack-up construction allows for disassembly and repair without disconnecting from air line.

    They feature aluminum die-cast construction with weather-resistant vinyl paint finish. Output pressure droop under varying downstream flow conditions is minimized by aspirator tube, which adjusts the air supply valve opening in accordance with flow velocity. The dampening action of the aspirator tube maintains continuous and stable output pressure.

    It provides precise vacuum pressure control within sub-atmospheric monitoring applications. It can be installed upstream or downstream from the vacuum pump. Upstream installation is preferred for applications in which the rapid evacuation of a vessel or system is required, because pump exhaust capacity is normally greater than that of the regulator. In all other applications, the regulator can be located between the pump and the vessel. Units may be either pipe-, panel- or bracket-mounted to suit particular application needs.

    The Precision Controls Division of Marsh Bellofram Corp., (304) 387-1200, www.marshbellofram.com

     

    Continue Reading

    May 10, 2017
    Author Brendan Casey lays out his hydraulics know-how that he acquired over 27 years in a simple handbook made for people that want to improve their skills in troubleshooting ...
    May 15, 2023
    Electrification presents challenges as well as opportunities to re-evaluate and improve upon the design of hydraulics and pneumatics.

    Sponsored Recommendations

    May 15, 2024
    Production equipment is expensive and needs to be protected against input abnormalities such as voltage, current, frequency, and phase to stay online and in operation for the ...
    March 13, 2024
    With experienced Product Engineers and Customer Service personnel, Altech provides solutions to your most pressing application challenges. All with one thought in mind - to ensure...
    March 13, 2024
    Introducing the All-In-One DC-UPS, a versatile solution combining multiple functionalities in a single device. Serving as a power supply, battery charger, battery care module,...
    March 13, 2024
    With experienced Product Engineers and Customer Service personnel, Altech provides solutions to your most pressing application challenges. All with one thought in mind - to ensure...