7440 Series

7440 Series – Glass Tube Flowmeters

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.

Metering Tube  Borosilicate Kinglass
Internal Components  316L stainless steel, black glass, sapphire,
Carboloy, tantalum
Fitting Material  316L SS
Optional: PVDF
Inlet/Outlet Fittings  1/4” FNPT, vertical
O-Ring  Standard: Viton®
Optional: Buna N, EPR, Kalrez®

Performance

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
Repeatability  1%
Maximum Temperature  Gases 250° F (121 ° C)
Liquids 200° F (93° C)
Maximum Pressure  316L SS fittings 200 psig
PVDF fittings 150 psig
Ambient Temperature  33° F to 125° F (1° C to 52° C)

Options

Alarm  Fiber-Optic or Inductive Ring Sensor
Certified Calibrations  Conform to ISA RP 16.6
Scales  Any volumetric unit