Hydrometers Technical

Specifications

  • Sizes: 1 ½”, 2”, 3”, 4”, 6” and 8”
  • Maximum working pressure:
    Manual Electric - 235 psi
    Pressure Reducing Manual Electric - 140 psi
  • Body: Cast iron, polyester coated
  • Valve diaphragm: Reinforced natural rubber
  • End Connections:
    1 1/2" - Male Pipe Thread
    2" - Female Pipe Thread
    3", 4", 6", 8" - Flanged
  • Flanges: Drilled to ANSI specification
  • Standards: EEC approval (class A)
  • Installation of a continuous acting air vent before the Hydrometer is highly recommended for accurate flow readings



Three-Way Selector

Three-way Selector Specifications

  • Operation: Three Position Manual Selector Auto-Open-Close
  • Construction: Brass and Stainless Steel
  • Connections: 1/8” FPT

Using the Three-way Selector

OPEN POSITION - Open the hydrometer by bypassing the solenoid or both the solenoid and pilot. Move the selector to “open”.

AUTO POSITION - Open and close the hydrometer using the solenoid. Move the selector to the “auto” position.

CLOSE POSITION - Manually close the valve overriding the solenoid. Move the selector to the “close” position.



 

ELECTRIC SOLENOID SPECIFICATIONS

  • Operation:
    - Solenoid: 24vac 5.5 watts, 0.23 amps inrush
    - Manual Override
  • Construction: Brass
  • Connections: In/Out NPT Threaded

Electric Solenoid


PRESSURE REDUCING THREE-WAY PILOT SPECIFICATIONS

  • Pressure range: 21 to 113 psi (silver spring)
  • Maximum working pressure: 140 psi*
  • Construction: Plastic body, Stainless steel and brass components
  • Connections: In/Out 8mm tubing
  • Drain outlet: 1/8" FPT

*Brass pilot available for pressures above 140 psi.




Hydrometers Friction Loss vs Pressure Loss


Hydrometers Performance Data Chart

 

Hydrometer Dimension Illustrations

Hydrometer Dimension Chart