7459 Series - Glass
Expanding the line of side plate construction rotameters, King introduces its 7459 Series. These models
feature a 250 mm scale borosilicate glass tube with aluminum side plates and a polycarbonate shield.
Connections are vertical FNPT, 316L stainless steel.

Description
Metering Tube
Borosilicate Glass
Internal Components
Standard: 316L Stainless Steel
Inlet/Outlet Fittings
NPT, Vertical
Connection:
Sizes 3 & 4: 1/2” FNPT
Size 5: 3/4” FNPT
Size 6: 1” FNPT
Size 8 & 9: 1 1/2” FNPT
Fitting Material
Standard: 316L Stainless Steel
Elastomers
Standard: Viton
Optional: Buna N, EPR, and Kalrez®
Options
Certified Calibrations
Conform to ISA RP 16.6
Scales
Can be produced in any volumetric unit
7459 Series Glass Tube Rotameters
Performance
Capacities
.22 to 100 GPM — Water
0.9 to 350 SCFM — Air
Scale
250 mm (10")
Direct reading, detachable
Accuracy
± 2% of Full Scale Flow
Turndown
10:1 to12.5:1 unless otherwise indicated
Repeatability .50%
Max Temperature
200° F (93° C) Liquid
250° F (121° C )Gases
Max Pressure
Sizes 3 & 4: 350 psig
Size 5: 175 psig
Size 6, 8 & 9: 125 psig
Ambient Temperature
33° F to 125° F (1° C to 52° C)
Liquid Compatible
Gas Compatible
Materials Of Construction
Part Standard Optional
Metering Tube Borosilicate Glass —
Side Plates Anodized Aluminum 304 SS
Shield Polycarbonate —
Fittings 316L SS —
Float 316L SS Hastelloy® 276-C*
O-Rings Viton® Buna-N, EPR, Kalrez®*
*Additional cost, call factory

Specifications
Order
Number		 Full Scale Flow
GPM-Water		 Order
Number		 Full Scale Flow
SCFM-Air1		 Float
Number		 Float
Type		 Press. Drop
In W.C.		 Tube
Number 		Tube
Size 		Connection
Size (FNPT)
31W
0.220
31A
0.9
3/8-LPG-01
LP
—
3G
3/8-20-G-10
1/2"
32W
0.315
32A
1.4
3/8-SLG-01
SL
2
3G
3/8-20-G-10
1/2"
33W
0.640
33A
2.7
3/8-SLG-02
SL
7
3G
3/8-20-G-10
1/2"
41W
0.77
41A
3.4
1/2-LPG-01
LP
6
4G
1/2-32-G-10
1/2"
42W
1.02
42A
4.4
1/2-LPG-02
LP
10
4G
1/2-32-G-10
1/2"
43W
1.20
43A
5.0
1/2-GVG-01
GV
0
4G
1/2-32-G-10
1/2"
44W
1.44
44A
6.1
1/2-GSG-01
GS
15
4G
1/2-32-G-10
1/2"
45W
1.92
45A
8.5
1/2-SLG-01
SL
28
4G
1/2-32-G-10
1/2"
46W
2.26
46A
10.2
1/2-SLG-02
SL
41
4G
1/2-32-G-10
1/2"
51W
1.1
51A
4.5
3/4-LPG-01
LP
1
5G
3/4-28-G-10
3/4"
52W
2.4
52A
10.0
3/4-GVG-01
GV
4
5G
3/4-28-G-10
3/4"
53W
3.0
53A
12.0
3/4-GSG-01
GS
5
5G
3/4-28-G-10
3/4"
54W
3.3
54A
13.2
3/4-GVG-02
GV
6
5G
3/4-28-G-10
3/4"
55W
4.0
55A
16.4
3/4-GSG-02
GS
6
5G
3/4-28-G-10
3/4"
56W
5.2
56A
22.0
3/4-SLG-01
SL
18
5G
3/4-28-G-10
3/4"
61W
6.9
—
—
1-LPG-02
LP
4
6G
1-32-G-10
1"
62W
9.8
—
—
1-SLG-01
SL
8
6G
1-32-G-10
1"
63W
12.6
—
—
1-SLG-02
SL
13
6G
1-32-G-10
1"
64W
6.7
64A
27.0
1-LPP-01
LP
4
6P
1-40-P-10
1"
65W
7.4
65A
30.0
1-GVP-01
GV
6
6P
1-40-P-10
1"
66W
8.5
66A
35.0
1-GVP-02
GV
8
6P
1-40-P-10
1"
67W
10.4
67A
42.5
1-GSP-01
GS
10
6P
1-40-P-10
1"
68W
11.6
68A
46.5
1-GVP-03
GV
15
6P
1-40-P-10
1"
69W
12.0
69A
50.0
1-GSP-02
GS
14
6P
1-40-P-10
1"
610W
15.6
610A
63.0
1-GSP-03
GS
24
6P
1-40-P-10
1"
611W
21.6
611A
100.0
1-SLP-01
SL
61
6P
1-40-P-10
1"
612W
27.5
—
—
1-SLP-02
SL
85
6P
1-40-P-10
1"
613W
34.5
—
—
1-SLP-03
SL
110
6P
1-40-P-10
1"
84W
17.0
84A
70.0
11/2-GVP-01
GV
10
8P
11/2-32-P-10
1 1/2"
85W
21.2
85A
87.0
11/2-GVP-02
GV
13
8P
11/2-32-P-10
1 1/2"
86W
22.2
—
—
11/2-GSP-01
GS
14
8P
11/2-32-P-10
1 1/2"
87W
24.8
87A
102.0
11/2-GVP-03
GV
18
8P
11/2-32-P-10
1 1/2"
88W
28.5
—
—
11/2-GSP-02
GS
20
8P
11/2-32-P-10
1 1/2"
89W
34.0
—
—
11/2-GSP-03
GS
24
8P
11/2-32-P-10
1 1/2"
94W
41.5
94A
170.0
2-GVP-01
GV
20
9P
2-30-P-10
1 1/2"
95W
58.0
95A
240.0
2-GSP-01
GS
25
9P
2-30-P-10
1 1/2"
96W
65.0
96A
270.0
2-GSP-02
GS
30
9P
2-30-P-10
1 1/2"
97W
85.0
97A
350.0
2-SLP-00
SL
40
9P
2-30-P-10
1 1/2"
98W
100.0
—
—
2-SLP-01
SL
50
9P
2-30-P-10
1 1/2"

 

Dimensions (Inches)
Tube
Size
Scale length
A
B
C
3-6
17
2.5
2.375
8-9
19
4.5
4.5
Ordering:
Use the following guide to determine the specific product number you require.
7
4
5
     
 *
2
 
 
Meter Series Order Number Fitting Material O-Ring Material ScaleType
See SpecificationsTable 316L SS - 2 EPR - 1 Millimeter - 1
  Buna-N - 2 GPM Water@70°F - 2
  Viton® - 3 LPM Water@70°F - 3
   
Kalrez® - 4
 SCFM Air@STP - 4
  SLPM Air@STP - 5
        Non standard - 6
* Only use this box with order numbers 610W thru 613W. Otherwise leave blank.
  Example: 745 - 54W - 2 - 3 - 6
Download Product Specifications in PDF Format