7440 Series Glass Tube Flowmeters

Brand: King Instrument Company

Based on our proven panel-mountable 7430, we offer the vertically-connected 7440 with the same scale lengths, flow rates, and cost-effective performance for low-flow applications such as purge metering and chemical dosing.
Features
  • Borosilicate Glass Metering Tube
  • Stainless Steel Frame with Verticle Connections
  • 65 mm or 150mm Scale
  • 0.72 – 1,800 cc/min Water; 66 – 70,000 cc/min Air

Specifications

Metering Tube

  • Borosilicate Kinglass

Internal Components

  • 316L stainless steel
  • Black glass
  • Sapphire
  • Carboloy
  • Tantalum

Fitting Material

  • 316L SS
  • PVDF

Inlet/Outlet Fittings

  • 1/4” FNPT, vertical

O-Ring

  • Viton®
  • Buna N
  • EPR
  • Kalrez®

Capacities

  • Water: 0.56 to 1,800 cc/min
  • Air: 54 to 70,000 cc/min

Scale

  • 65 mm, 150 mm Direct reading, detachable

Accuracy

  • ± 6% of full scale flow, 65 mm
  • ± 4% of full scale flow, 150 mm

Turndown

  • 10:1

Maximum Temperature

  • Gases: 250 °F
  • Liquids: 200 °F

Maximum Pressure

  • 316L SS fittings: 200 psig
  • PVDF fittings: 150 psig

  • Low-Flow and Gas Purge Applications
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