Apollo Valves 20-300 Series Liquid Level Gauges

Plumbing & Heating | Liquid Level Gauges

Apollo Valves 20-300 Series Liquid Level Gauges water gauges are for use on all types of liquid level verification. Gauge sets are available in many variations including heavy body patterns for higher service ratings and aluminum or plastic composite handles. Sight glass is available in any length up to 72 inches. Standard set includes top and bottom valves, glass and rods.

Apollo Valves 20-300 Series Features

  • Coated Steel Guard Rods included.
  • 1/4” Drain Valve Standard
  • Sizes 3/8”, 1/2”, 3/4” (20-2/300 only)
  • Canadian Registration 0F6616.5C
  • Meets ASME Design requirements
  • Made in USA

Performance Rating

  • 20-100: 125 psig @ 350°F, 300 psig @ 100°F
  • 20-200: 200 psig @ 400°F, 400 psig @ 100°F
  • 20-300: 200 psig @ 400°F, 400 psig @ 100°F
    (Subject to the limitation of the gauge glass)

Standard Material List

Body ASTM B584 C84400 Bronze
ASTM B584 C89836 (20-100 LF only)
ASTM B16 Brass (20-300 only)
Drain Body ASTM B16 Brass
Stem ASTM B16 Brass
Gland Nut ASTM B16 Brass
Packing Nut ASTM B16 Brass
Stem Packing TFE w/Hypalon
Glass Packing EPDM
Rods Steel
CDA C27451 (20-100 LF only)

Ref: apollovalves.com
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Rudy Wiratama


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