King Instrument 7420 Data sheet

7420 Series

PVDF in-line connections,
Hastelloy C-276 internals

and borosilicate glass
tubes with a polycarbonate
housing make these both
chemical-resistant and

economical

Description

®

Glass Tube

Performance

Capacities

.48 to 7.4 GPM — Water
2 to 20 SCFM — Air

Metering Tube

Borosilicate Glass

Internal Components

316L Stainless Steel or Hastelloy C-276

®

Inlet/Outlet Fittings

1/2” FNPT, Vertical

Fitting Material

Standard: PVDF
Optional: 316L Stainless Steel

Options

Certified Calibrations

Conform to ISA RP 16.6

Scales

Can be produced in any volumetric unit

Scale

75 mm (3”), 150 mm (6”)

Direct reading

Accuracy

± 5% of Full Scale Flow, 75 mm
± 3% of Full Scale Flow, 150 mm

Turndown

10:1 to 12.5:1, unless otherwise
indicated

Repeatability

.5 %

Max Temperature

150 F (66 C)

Max Pressure

150 psig

Ambient Temperature

33 F to 125 F (1 C to 52 C)

Float Types:

GV

Maximum Viscosity

Compensation

14

LP

Lowest Pressure

Loss

Refer to specification
table on page 15

SL

Maximum Flow

7420 Series

KINGLASS

Specifications:

Glass Tube

75mm (3”) Scale Models

Full Scale Flow

Dimensions

Order Water Air Float Float Tube Tube (Inches)
Number GPM LPM SCFM SLPM Number Type Size Number A B

3G10 .48 1.8 2.0 56

3G20 1.0 3.8 4.0 112

3G30 2.0 7.6 8.2 230

3P10 2.5 9.4 10.0 280

3P20 4.0 15.0 20.0 560

3P30 5.6 21.0 — —

3P40 7.4 28.0 — —

1

/

-LPG-04 LP .50”

2

1

/

-LPG-05 LP .50”

2

1

/

-SLG-01 SL .50”

2

5

/

-GVP-01 GV .625”

8

5

/

-SLP-01 SL .625”

8

5

/

-SLP-02 SL .625”

8

5

/

-SLP-03 SL .625”

8

1

/

-24-G-3 1.75 7.74

2

1

/

-24-G-3 1.75 7.74

2

1

/

-24-G-3 1.75 7.74

2

5

/

-29-P-3 1.75 7.74

8

5

/

-29-P-3 1.75 7.74

8

5

/

-29-P-3 1.75 7.74

8

5

/

-29-P-3 1.75 7.74

8

150mm (6”) Scale Models

Full Scale Flow Dimensions

Order Water Air Float Float Tube Tube (Inches)

Number GPM LPM SCFM SLPM Number Type Size Number A B

6G10 0.5 1.9 2.0 57

6G20 1.0 3.8 4.2 118

6G30 2.0 7.6 8.2 230

6P10 2.5 9.4 10.0 280

6P20 4.0 15.0 20.0 560

6P30 5.6 21.0 — —

6P40 7.4 28.0 — —

1

/

-LPG-04 LP .50”

2

1

/

-LPG-05 LP .50”

2

1

/

-SLG-01 SL .50”

2

5

/

-GVP-02 GV .625”

8

5

/

-SLP-04 SL .625”

8

5

/

-SLP-05 SL .625”

8

5

/

-SLP-06 SL .625”

8

1

/

-24-G-6 1.75 11.26

2

1

/

-24-G-6 1.75 11.26

2

1

/

-24-G-6 1.75 11.26

2

5

/

-32-P-6 1.75 11.26

8

5

/

-32-P-6 1.75 11.26

8

5

/

-32-P-6 1.75 11.26

8

5

/

-32-P-6 1.75 11.26

8

King Instrument Company
manufactures borosilicate
glass metering tubes.
These are used exclusively
in all Kinglass models.

Ordering:

Use the following guide to determine the specific product number you require.

7 4 B

Meter Series Order Number Float Material Fitting Material Scale

See Specifications 316L SS - 2 PVDF - 7 Millimeter - 1

Table Hastelloy® C-276 - 4 316L SS - 2 GPM Water@70

LPM Water@70

SCFM Air@STP - 4

SLPM Air@STP - 5

Non standard - 6

o

F - 2

o

F - 3

Example: 74B - 6P30 - 2 - 7 - 2

15