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7720 Series - PVC
Type 1, Grade 1 PVC tube meters offer chemical resistance. The dial type display makes measuring opaque fluids
simple. A 4-20mA transmitter is optional.

Description
Metering Tube
Type 1, Grade 1 PVC
Internal Components
Hastelloy C-276®
Inlet/Outlet Fittings
NPT or Flange, Vertical
Fitting Material
Type 1, Grade 1 PVC
Elastomers
Standard: Viton®
Optional: Buna N, EPR, and Kalrez®
Options
Alarm
Single or Dual, Inductive Slot Sensor
4-20 ma Transmitter
Certified Calibrations
Conform to ISA RP 16.6
Scales
Can be produced in any volumetric unit
7720
Performance
Capacities
33 GPH to 450 GPM — Water
Scale
120 mm Direct reading, detachable
Accuracy
± 3% of Full Scale Flow
Turndown
10:1 to12.5:1 unless otherwise indicated
Repeatability 1%
Max Temperature
130° F (54° C)
Max Pressure
150 psig, sizes 4 & 6
125 psig, sizes 8, 9, 11, 12
Ambient Temperature
33° F to 125° F (1° C to 52° C)
Materials Of Construction
Part
Standard
 Optional
Meter Tube PVC –
Guide Rod Hastelloy® C-276 –
Fittings PVC –
Flanges PVC –
Float Hastelloy® C-276 –
O-Rings Viton®, EPR, Buna-N Kalrez®
Float Stops Hastelloy® C-276 –
Indicator Housing Powder Coated Aluminum –
Housing Cover Machined Cast Acrylic –
Liquid Compatible
Gas Compatible
Alarm Compatible


Specifications
Order
Number		 Full Scale
Flow–Water		 Dimensions (inches)
With FNPT Connections		 150 #
Flange
A
B
C
D
E
F
G
H
706
33.0 GPH - 1/2" FNPT
1.312
11
5.125
5
3.375
4.625
3.5
 13.125
708
1.1 GPM - 1/2" FNPT
1.312
11
5.125
5
3.375
4.625
3.5
 13.125
710
2.0 GPM - 1/2" FNPT
1.312
11
5.125
5
3.375
4.625
3.5
 13.125
712
4.0 GPM - 1/2" FNPT
1.312
11
5.125
5
3.375
4.625
3.5
 13.125
714
6.0 GPM - 1/2" FNPT
1.312
11
5.125
5
3.375
4.625
3.5
 13.125
716
5.0 GPM - 1" FNPT
1.875
13.25
5.25
5
4
4.625
4.25
 16.75
718
10.0 GPM - 1" FNPT
1.875
13.25
5.25
5
4
4.625
4.25
 16.75
720
16.5 GPM - 1" FNPT
1.875
13.25
5.25
5
4
4.625
4.25
 16.75
722
25.0 GPM - 1" FNPT
1.875
13.25
5.25
5
4
4.625
4.25
 16.75
724
35.0 GPM - 1 1/2" FNPT
2.375
13.875
5.625
5
4.5
4.625
5
 18.625
726
60.0 GPM - 1 1/2" FNPT
2.375
13.875
5.625
5
4.5
4.625
5
 18.625
728
76.0 GPM - 2" FNPT
3.5
13.875
6.75
5
5.625
4.625
6
 17.156
730
100.0 GPM - 2" FNPT
3.5
13.875
6.75
5
5.625
4.625
6
 17.156
732
120.0 GPM - 2" FNPT
3.5
13.875
6.75
5
5.625
4.625
6
 17.156
734
152.0 GPM - 2" FNPT
3.5
13.875
6.75
5
5.625
4.625
6
 17.156
736
150.0 GPM - 3" Flange
–
–
–
–
–
–
7.5
 17.867
738
225.0 GPM - 3" Flange
–
–
–
–
–
–
7.5
17.867
740
300.0 GPM - 4" Flange
–
–
–
–
–
–
9
18.562
742
375.0 GPM - 4" Flange
–
–
–
–
–
–
9
 18.562
744
450.0 GPM - 4" Flange
–
–
–
–
–
–
9
 18.562

 

Alarm Options:
Inductive Slot Sensor
Like inductive ring sensors, slot sensors are 2-wire, DC, low-current devices and are designed to be used with a remote intrinsic safety barrier/switch isolator. Single or dual slot sensors are available for the 7700 Series.		 Sensor Specifications
Power Supply: 5-25 VDC
(from Switch Isolator)
Max Current, Target Present: 1 mA
Max Current, Target Absent: 15 mA
Temperature Limits: -14°F to +212°F
Output: NAMUR
Repeatability: 0.01 mm
Switching Frequency: 2 kHz
Sensor Approvals*:
UL Listed: General Purpose
FM Approved: Intrinsically Safe*
CSA Certified: Intrinsically Safe*
Cenelec: Intrinsically Safe*

Optional 4-20 mA Transmitter*
Power Supply:12 to 33 Vdc
Maximum Current Consump.: 40 mA
Temperature Limits: -13° F to 158° F (-25 to 70° C)
Output: 4 to 20 mAdc
Accuracy: <0.5%
Linearity: +0.4%
Influence from bearing play: ±0.1%
Temperature influence (amb): 0.03% per oC
Power supply influence: ±0.1%
Load resistance influence: ±0.1% at R max.

*Specifications shown here are for the transmitter only and should not be confused with the actual performance capabilities of the flowmeter.
*Specifications shown here are for the transmitter only and should not be confused with the actual performance capabilities of the flowmeter.

Ordering:
Use the following guide to determine the specific product number you require.
7
7
2
 
4
 
     
Meter Connection Type Float Material O-Ring Material Optional Alarm/Transmitter Order Number
Series NPT Connections - 1 Hastelloy® 276-C - 4 EPR - 1 Without Alarm/Transmitter - 0 See Specifications
150# R.F. Flanged - 2   Buna-N - 2 With Transmitter - T Table
  Viton® - 3 One Alarm (Inductive Slot Sensor) - A
  Kalrez® - 4 Two Alarms (Inductive Slot Sensors) - D
  Example: 772 - 2 - 4 - 2 - T - 714
Download Product Specifications in PDF Format
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