7450 Series - Glass
Side plate style meters with 75mm or 150mm borosilicate glass tube and 316L stainless steel or brass
connections. Valves optional. Also available with PVC ends and Hastelloy C-276 construction for greater
chemical resistance.

Description
Metering Tube
Borosilicate Glass
Internal Components
316L Stainless Steel
Inlet/Outlet Fittings
FNPT, Horizontal
Control Valve optional
Fitting Material
Brass or 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
Liquid Compatible
Gas Compatible
7450 Series Glass Tube Rotameters
Performance
Capacities
.48 to 7.4 GPM — Water
2 to 20 SCFM — Air
Scale
75 mm (3"), 150 mm (6")
Direct reading, detachable
Accuracy
± 5% of Full Scale Flow, 75 mm
± 3% of Full Scale Flow, 150 mm
Turndown
10:1 to12.5:1 unless otherwise indicated
Repeatability 1%
Max Temperature
200° F (93° C)
Max Pressure
200 psig
Ambient Temperature
33° F to 125° F (1° C to 52° C)

 
Materials Of Construction
Part Standard Optional
Metering Tube Borosilicate Glass —
Frame Anodized Aluminum 304 SS
Shield Polycarbonate —
Fittings/Valve Assy. 316L SS Brass, PVC
Float 316L SS Hastelloy® 276-C
O-Rings Viton® Buna-N, EPR, Kalrez®


Specifications
75mm (3") Scale Models
Order
Number
Full Scale Flow Water
Full Scale Flow Air
Float
Number
 Float
Type		 Tube
Size		 Tube
Number
Dimensions (Inches)
GPM
LPM
SCFM
SLPM
A
B
C
D
E
3G1
0.48
1.8
2
56
1/2-LPG-04
LP
.50"
1/2-24-G-3
1.75
1.50
8.00
7.00
2.25
3G2
1
3.8
4
112
1/2-LPG-05
LP
.50"
1/2-24-G-3
1.75
1.50
8.00
7.00
2.25
3G3
2
7.6
8.2
230
1/2-SLG-01
SL
.50"
1/2-24-G-3
1.75
1.50
8.00
7.00
2.25
3P1
2.5
9.4
10
280
5/8-GVP-01
GV
.625"
5/8-29-P-3
1.75
1.50
8.00
7.00
2.25
3P2
4
15
20
560
5/8-SLP-01
SL
.625"
5/8-29-P-3
1.75
1.50
8.00
7.00
2.25
3P3
5.6
21
–
–
5/8-SLP-02
SL
.625"
5/8-29-P-3
1.75
1.50
8.00
7.00
2.25
3P4
7.4
28
–
–
5/8-SLP-03
SL
.625"
5/8-29-P-3
1.75
1.50
8.00
7.00
2.25
150mm (6") Scale Models
Order
Number
Full Scale Flow Water
Full Scale Flow Air
 Float
Number		 Float
Type		 Tube
Size		 Tube
Number
Dimensions (Inches)
GPM
LPM
SCFM
SLPM
A
B
C
D
E
6G1
0.5
1.9
2
57
1/2-LPG-04
LP
.50"
1/2-24-G-6
1.75
1.50
11.56
10.56
2.25
6G2
1
3.8
4.2
118
1/2-LPG-05
LP
.50"
1/2-24-G-6
1.75
1.50
11.56
10.56
2.25
6G3
2
7.6
8.2
230
1/2-SLG-01
SL
.50"
1/2-24-G-6
1.75
1.50
11.56
10.56
2.25
6P1
2.5
9.4
10
280
5/8-GVP-02
GV
.625"
5/8-32-P-6
1.75
1.50
11.56
10.56
2.25
6P2
4
15
20
560
5/8-SLP-04
SL
.625"
5/8-32-P-6
1.75
1.50
11.56
10.56
2.25
6P3
5.6
21
–
–
5/8-SLP-05
SL
.625"
5/8-32-P-6
1.75
1.50
11.56
10.56
2.25
6P4
7.4
28
–
–
5/8-SLP-06
SL
.625"
5/8-32-P-6
1.75
1.50
11.56
10.56
2.25

Float Types
LP GV SL
Lowest Pressure Loss
Maximum Viscosity Compensation
Maximum flow

Connection Size: .3/8" FNPT
Ordering:
Use the following guide to determine the specific product number you require.
7
4
5
     
 
 
 
 
Meter Series Order Number Fitting Material O-Ring Material ScaleType Valve Option
See Specifications Brass - 1 EPR - 1 Millimeter - 1 Brass - Inlet - 1
Table 316L SS - 2 Buna-N - 2 GPM Water@70°F - 2 Brass - Outlet - 2
  Viton® - 3 LPM Water@70°F - 3 No Valve - 3
   
Kalrez® Without Valve - 4
 SCFM Air@STP - 4 316L SS - Inlet - 4
  Kalrez® With Valve - 5 SLPM Air@STP - 5 316L SS - Outlet - 5
        Non standard - 6  
  Example: 745 - 6P4 - 2 - 3 - 2 - 1
Download Product Specifications in PDF Format