Design Features
-
Rugged body design with all type 300 stainless steel construction.
-
Metering tube can be removed for range change or cleaning in 0-ring or packing type with
meter in line and without disassembly of meter.
-
Polycarbonate operator protection shield designed to protect personnel from glass
fragments in the event of accidental tube rupture.
-
Universal threaded process connections.
-
Screw-on flanges.
-
Rotatable end fittings.
-
Visibility of tube and float through wide angle with standard enclosure & mounting.
Engineering Specifications
Repeatability: 0.5% of full scale.
Accuracy: Standard is ±2% of maximum flow.
Calibrated standard is i 1% of maximum flow.
Range: 12 1/2 to 1
Mounting: Standard line mounting; Optional - panel mounting
(flush, surface).
SCALES |
Tube Sizes, Inches |
Scale |
Nominal
Length |
Type
and Location |
1/2 thru 2 |
10-in. (250 mm) |
Percentage on tube or Direct
Reading on external metal scale with blank tube. |
1/2-50 (only) |
9-in. (227 mm) |
Materials of Construction:
Tube: Beadguide™
borosilicate glass
USV, SV, NSV Floats: Standard - stainless steel;
0-rings: Standard - Buna N; Optional - Viton, EPR
Packing: Standard - Neoprene; Optional - molded Teflon
liner.
Fittings: Standard - brass, stainless steel.
Float Stops: Teflon
Tube Rest Gaskets:
Standard - Klinger-Sil
Optional - Teflon (10A4600 only)
Glands: Standard - 300 series
stainless steel
Compression Screws: Standard - 300 series stainless steel
Meter Body: 304L stainless steel
Tube Retainer Spring: Armco 17-7 pH stainless steel, external to fluid
stream in 0-ring meters.
Shield: Polycarbonate
Electrical Specifications for Alarms:
Supply Voltage: 120V ac ±15%, 45-65Hz
Contact Rating: Max 250V; Max 4A; Max 500VA
Sensor Switch Cable: Standard 6.5 Feet
Optional - up to 980 Feet
Safety Classification: The sensor(s) is intrinsically safe for Class I,
Div. 1, Group A, B, C & D and Class II, Div. 1, Group E, F & G when connected with
control amplifier mounted in non hazardous location.
Service Conditions:
Applications: Glass tube meters are not recommended for continuous
service on alkalis above 100 F (38 C) or more than 20% concentrations; nor for fluorine,
hydrofluoric acid, water above 200 F (93 C), steam, slurries, or molten metal.
Temperature Ratings: Minimum recommended process fluid temperature is
320F (00C). Maximum recommended process fluid temperature is 250 F (121 C).
Ambient Temperature Range 320F-1400F
Pressure Ratings: (In accordance with l.S.A. RP 16.1)
Tube Size
(in) |
Maximum
Safe Working
Pressure @ 100 F (38 C) |
| psig |
kPa gauge |
| 1/2 NPT |
300 |
2069 |
| 1/2 FLGD; StL. S.S. |
275 |
1896 |
| 1/2 FLOD; Brass |
225 |
1551 |
| 3/4 All |
200 |
1379 |
| 1 All |
200 |
1379 |
| 1 1/2 All |
130 |
896 |
| 2 All |
100 |
689 |
|
Caution |
|
Is it important that the 0-ring material be compatible with the process fluid. Meter tube
breakage can occur if the wrong material is used. For example: VITON 0-RING MUST
NEVER BE USED FOR AMMONIA SERVICE. Refer to Catalog 10A1023, Rotameter Selection Guide for
material selection. |
WEIGHTS AND CONNECTION
| Tube Size (in) |
Conn. Size (in) |
Weight |
| Threaded |
Flanged* |
| lb |
kg |
lb |
kg |
| ½ |
½ |
8.5 |
3.9 |
12 |
5.5 |
| ¾, 1 |
¾ NPT |
17 |
7.5 |
-- |
-- |
| ¾, 1 |
1 FLGD |
-- |
-- |
21 |
9.5 |
| 1½, 2 |
1½ |
29 |
13 |
35 |
16 |
* Flanges match drilling of ANSI Class 125/150 Flanges.
Accessories
Metal Scale Plate(s): Graduated metal scale plate mounted adjacent to
metering tube.
Alarms: One or two* Bi-stable alarm switches, adjustable over entire
scale length to give contact closure (or opening) upon rising or falling flow.
Available with SPDT or DPDT switch action.
Surface (Front) Panel Mounting: Nuts, bolts, and lock washers for
mounting meter against front of panel by means of mounting holes provided in every meter
body.
Flush (Rear) Panel Mounting: Brackets, bezel and hardware for mounting
meter behind panel.
Metering Float Thermal Expansion: (Due to differences in thermal
expansion between glass tube and metal float). Float head reduction required for operating
temperatures exceeding (for 316 sst) tube sizes 1/2", 3A", & 1 1/2" 140
F (60 C), 2" 120 F (49 C).
Welded Flanges: Upon request, flanges nipples - end fittings can be
supplied as a welded assembly.
*Note when using two switches - the minimum spacing is on 1" centers (approx. 10% of
full scale).
Capacity Table
LOW PRESSURE DROP DESIGN |
| Tube Size |
Maximum Flow |
Tube Number |
Float Number (316 sst) |
Total delta P (See Note 1) |
V.I.C.
(See Note 2) |
psia
Critical
(See Note 3) |
gpm H2O
Equiv |
scfm Air Equiv |
| 1/2" |
0.198 |
0.800 |
FP-½-17-G-10 |
1/2-GUS-410 |
0.53 |
2.20 |
3.60 |
0.238 |
0.982 |
FP-½-21-G-10 |
1/2-GUSVT-410 |
0.53 |
2.20 |
3.60 |
0.324 |
1.339 |
FP-½-27-G-10 |
1/2-GUSVT-410 |
0.58 |
2.20 |
3.60 |
0.436 |
1.796 |
FP-½-35-G-10 |
1/2-GUS-410 |
1.00 |
2.20 |
3.60 |
0.825 |
3.40 |
FP-½-50-G-9 |
1/2-GUSVT-410 |
2.00 |
2.20 |
3.60 |
| 3/4" |
0.633 |
2.62 |
FP-¾-21-G-10 |
3/4-GUSVT-510 |
0.60 |
3.30 |
3.10 |
0.860 |
3.54 |
FP-¾-27-G-10 |
3/4-GUSVT-510 |
0.71 |
3.30 |
1.50 |
| 1" |
1.205 |
4.98 |
FP-1-27-G-10 |
1-GUSVT-611 |
1.28 |
4.00 |
1.00 |
1.67 |
6.90 |
FP-1-35-G-10 |
1-GUSVT-611 |
1.83 |
4.00 |
0.75 |
2.58 |
10.70 |
FP-1-27-G-10 |
1-GUSVT-610 |
5.47 |
8.60 |
4.50 |
3.60 |
14.84 |
FP-1-35-G-10 |
1-GUSVT-610 |
7.97 |
8.60 |
3.40 |
| 1 1/2" |
2.45 |
10.30 |
FP-1½-21G-10 |
1½-GUS-867 |
0.92 |
6.50 |
1.00 |
3.33 |
13.80 |
FP-1½-27-G-10 |
1½-GUS-867 |
1.24 |
6.50 |
1.00 |
6.50 |
27.00 |
FP-1½-21-G-10 |
1½-GUSVGT-814 |
5.75 |
16.20 |
6.80 |
8.70 |
36.00 |
FP-1½2TG-10 |
1½-GUSVGT-814 |
7.20 |
16.20 |
6.80 |
| 2" |
5.54 |
22.90 |
FP-2-27-G-10 |
2-GUSVT-913 |
1.65 |
8.90 |
1.00 |
13.75 |
56.70 |
FP-2-27-G-10 |
2-GUSVT-914 |
9.00 |
22.00 |
6.20 |
|
