King Instrument 7520, 7530 Specifications
7520 / 7530 Series
Acrylic Tube
Economical machined cast acrylic block construction makes these meters great for OEM use. Optional
inlet metering valve available.
DESCRIPTION
Metering Tube Machined cast acrylic
Internal Components 316L SS
Fitting Material Standard: PVC (brass for 2C block size)
Optional: 316L SS or brass
Inlet/Outlet Fittings NPT, horizontal
Control valve optional
O-Ring Standard: EPR
Optional: Buna N, Viton® , and Kalrez®
PERFORMANCE
Capacities Water 7 GPH to 20 GPM
Air 2.6 SCFH to 60 SCFM
Scale 50mm, 75mm, 100mm,
127mm, 250mm direct reading
Accuracy ± 6% of full scale flow, 50 mm scale
± 4% of full scale flow, 75 mm scale
± 4% of full scale flow, 100 mm scale
± 7% of full scale flow, 6C-04, 6C-06
± 3% of full scale flow, 127 mm scale
± 2% of full scale flow, 250 mm scale
Turndown 10:1
Repeatability 3%, 50 mm scale
2%, 75 mm scale
2%, 100 mm scale
4%, 6C-04, 6C-06
2%, 127 mm scale
0.5%, 250 mm scale
Maximum Temperature Liquid 130° F (54° C)
Gases 100° F (38° C)
Maximum Pressure Water 125 psig
Air 100 psig
Ambient Temperature 33° F to 125° F (1° C to 52° C)
OPTIONS
Certified Calibrations Conform to ISA RP 16.6
Scales Any volumetric unit
When it comes to ow...we’re instrumental.28
7520 / 7530 Series Specifications
Acrylic Tube
Order
Number
– –
– –
– –
– –
Flow
Water
Order
Number
Flow
Air
Block #2C, 50mm (2 Inch) Scale
2C-01* 2.6 SCFH 4.125 1 1.215 4 .50 1.05 3
2C-03 5 SCFH 4.125 1 1.215 4 .50 1.05 3
2C-05* 10 SCFH 4.125 1 1.215 4 .50 1.05 3
2C-07* 20 SCFH 4.125 1 1.215 4 .50 1.05 3
2C-02 7 GPH 2C-09 30 SCFH 4.125 1 1.215 4 .50 1.05 3
2C-04 12 GPH 2C-11 60 SCFH 4.125 1 1.215 4 .50 1.05 3
2C-06 22 GPH 2C-13 100 SCFH 4.125 1 1.215 4 .50 1.05 3
2C-08 44 GPH 2C-15 180 SCFH 4.125 1 1.215 4 .50 1.05 3
2C-10 60 GPH 2C-17 4 SCFM 4.125 1 1.215 4 .50 1.05 3
2C-12 75 GPH — — 4.125 1 1.215 4 .50 1.05 3
*These meters have glass ball floats
Order Flow Order Flow Dimensions (Inches) Connections & Mounting
Number Water Number Air A B C D E F G Connection
Block #3C, 75mm (3 Inch) Scale
3C-02 1 GPM 3C-01 4 SCFM 6.875 1.20 1.35 6.625 1 1.37 5
3C-04 2 GPM 3C-03 8 SCFM 6.875 1.20 1.35 6.625 1 1.37 5
3C-06 3.5 GPM 3C-05 15 SCFM 6.875 1.20 1.35 6.625 1 1.37 5
3C-08 5 GPM 3C-07 23 SCFM 6.875 1.20 1.35 6.625 1 1.37 5
Block #5C, 127mm (5 Inch) Scale
5C-10 10 GPH 5C-11 42 SCFH 8.45 1.20 1.35 8.25 1 1.37 6.437
5C-12 20 GPH 5C-13 100 SCFH 8.45 1.20 1.35 8.25 1 1.37 6.437
5C-14 40 GPH 5C-15 175 SCFH 8.45 1.20 1.35 8.25 1 1.37 6.437
5C-02 1 GPM 5C-01 4 SCFM 8.45 1.20 1.35 8.25 1 1.25 6.437
5C-04 100 GPH 5C-03 6.8 SCFM 8.45 1.20 1.35 8.25 1 1.37 6.437
5C-06 2 GPM 5C-05 8.2 SCFM 8.45 1.20 1.35 8.25 1 1.37 6.437
5C-08 5 GPM 5C-07 22 SCFM 8.45 1.20 1.35 8.25 1 1.37 6.437
Block #6C, 100mm (4 Inch) Scale
6C-02 10 GPM 6C-01 40 SCFM 9.125 1.78 1.812 8.875 1.25 1.875 6.437
6C-04 15 GPM 6C-03 60 SCFM 9.125 1.78 1.812 8.875 1.25 1.875 6.437
6C-06 20 GPM — — 9.125 1.78 1.812 8.875 1.25 1.875 6.437
Block #7C, 250mm (10 Inch) Scale
7C-02 2 GPM 7C-01 8 SCFM 14.50 1.78 1.812 14.25 .75 1.75 12.25
7C-04 3.5 GPM 7C-03 14.4 SCFM 14.50 1.78 1.812 14.25 .75 1.75 12.25
7C-06 5 GPM 7C-05 20 SCFM 14.50 1.78 1.812 14.25 .75 1.75 12.25
7C-08 10 GPM 7C-07 42 SCFM 14.50 1.78 1.812 14.25 .75 1.75 12.25
Blocks 3C, 5C, 6C and 7C have mounting studs depicted in dimension “H” and thread “J”. (Mounting nuts not supplied)
Dimensions (Inches)
Size
1/2” MNPT x
1/4”FNPT
1/2” MNPT x
1/4 ”FNPT
1” MNPT
1/2” FNPT
DiameterLConnection
.700 1/4” FNPT
.700 1/4” FNPT
.700 1/4” FNPT
.700 1/4” FNPT
.700 1/4” FNPT
.700 1/4” FNPT
.700 1/4” FNPT
.700 1/4” FNPT
.700 1/4” FNPT
.700 1/4” FNPT
Centerline HThread JDiameter
3 .25 - 20 1
3 .25 - 20 1
3 .25 - 20 1
3 .25 - 20 1
3.937 .25 - 20 1
3.937 .25 - 20 1
3.937 .25 - 20 1
3.937 .25 - 20 1
3.937 .25 - 20 1
3.937 .25 - 20 1
3.937 .25 - 20 1
3.937 .25 - 20 1.375
3.937 .25 - 20 1.375
3.937 .25 - 20 1.375
8.75 .375 - 24 1.25
8.75 .375 - 24 1.25
8.75 .375 - 24 1.25
8.75 .375 - 24 1.25
SizeA B C D E F G
L
DIMENSION DIAGRAM
B C
A
ORDERING:
2C blocks
L
D
F
G
L
E
B C
A D
3C, 5C, 6C, 7C blocks
G
F
E
L
J
J
L
Use the following guide to determine the specific product number you require.
7 5
Meter Series Fitting Material O-Ring Material Valve Material Order Number
7520 No valve Brass - 1 EPR - 1 Brass - 1 See Specifications
7530 With valve PVC - 2 (
2C not available in PVC)
316L SS - 3 Viton® - 3 Without Valve - 0
Buna-N - 2 316L SS - 2 table
(714) 891-0008 • www.kinginstrumentco.comWhen it comes to ow...we’re instrumental.
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