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Aerocon is pleased to be a distributor for the complete line of Aqua Environment high pressure assesories and assemblies.  These fine high pressure components compliment our extensive line of specialized and difficult-to-find products. 

 

Aqua Environment

AquaEnvironment, established 1967,  maintains an extensive product line of valves and regulators that are designed, manufactured, assembled, and tested at its facilities in the San Francisco Bay Area of California, USA.  Over the years Aqua Environment has developed a line of reasonably priced, dependable high pressure components for Marine, Petroleum, Process, Semi-Gas, and Safety Air applications.  Typical pressure ratings of 6000 PSI and 1/4" to 1/2" pipe sizes are offered.

Applications include:

  • Air compressor systems for fire fighter breathing air
  • Air and gas systems for commercial, military, and sport diving
  • Gas delivery systems for CNG (compressed natural gas) vehicle fuel
  • Control regulators for industrial pump shaft seals
  • Cryogenic gas control


The product technical bulletins herein describe a range of products that can be used alone or in combination to provide numerous fluid flow functions.  For example, the standard or high flow air operated valves can be used with a low pressure air solenoid valve to replace more expensive high pressure solenoid valves.  Feel free to contact us to discuss your application.

Application Notes:
Aerocon Systems  

Flow Coefficient Cv  and Flow Factor K

- an explanation and the difference between them -

For control valves it is often convenient to express the capacities and flow characteristics in terms of a 

* flow coefficent Cv  (pronounced C sub V or just CV)

is defined as:

* the flow of water at 60 deg F in US gallon/minute at a pressure drop of 1 lb/in2 across the valve. 

For example, a valve with a Cv of .03 will flow .03 gallons per minute at 1 psi.  A typical 1/2" ball valve with a C of 28 will flow 28 gallons of water per minute at 1 psi.  The rule of thumb is the larger the Cv number, the higher the flow rate.
 

The metric equivalent called the 

* flow factor K(pronounced K sub V or just KV)

is defined as:

* the number of cubic meters per hour of water at 20  deg C which will flow through the valve with a pressure drop of 1 kg/cm2 (1 bar). 
 

The connection between Cv and Kv can be expressed as:

* Cv= 1.16 Kv
* Kv = 0.853 Cv
 

Photos courtesy Bardstown Fire Department, 4 bank 4500 PSI with two filling stations

211 priority valves on top, 415 regulator to the right, 1018 sequence valves between 211's and bottles

Closeup of 1018 Sequence valves

Closeup of 211 Priority valves and 415 regulator

4 bank, 8 bottle cascade

Compressor to left in blue, white filling station