AIR FLOW DIRECTION PRESSURIZATION

Brand Owner (click to sort) Address Description
ADI AIRFLOW DIRECTION INCORPORATED 4 Spring Hill Road West Newbury MA 01985 air flow direction and pressurization gauges and alarms;
ADI AIRFLOW DIRECTION INCORPORATED 4 Spring Hill Road West Newbury MA 01985 air flow direction and pressurization gauges and alarms;
BALL-IN-TUBE AIRFLOW DIRECTION INC. 4 Spring Hill Road West Newbury MA 01985 air flow direction and pressurization gauges and alarms; pressure indicators;
DOME-ON-THE-WALL AIRFLOW DIRECTION INC. 4 Spring Hill Road West Newbury MA 01985 air flow direction and pressurization gauges and alarms; pressure indicators;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves located within a housing and integrating a pressurization orifice. The initial opening of the valve in an axial direction enables gas to flow through the pressurization orifice at a first flow rate. The full opening of the valve in the axial direction enables the gas to flow through the second valve at a second flow rate, which is much higher than the first flow rate. The controlled pressurization of the gas through the orifice delays the time during which the gas reaches full recompression. The valve may be further provided with a vent for venting pressurized gas away from a nominally closed top surface of the lower valve element. The valve may be also provided with a valve inlet tube extending into a gas cylinder to prevent contaminants, particles and/or impurities from entering the valve.