Omega Products FL-1700 Installation Manual
omega.com
®
®
FL-1700 and FL-1800
SERIES ROTAMETERS
INSTRUCTION
SHEET
M0367/0201
CAUTION
It is recommended that this publication be read in its entirety
before performing any operation.Failure to understand and
follow these instructions could result in serious personal injury
and/or damage to the equipment.
GENERAL DESCRIPTION
The OMEGA8 FL-1700 and FL-1800 series of variable area flow
indicators provides an economical means of flow rate indication for
difficult-to-handle, corrosive fluids encountered in chemical plants,
research laboratories, semiconductor, and film processing
industries.
These rotameters consist of a tapered glass metering tube with ball
float, aluminum or stainless steel side plates, and Kynar end fittings.
The tube and float assembly is easily removable while the meter
remains in the process piping.
These units are also available with an optional integral needle
control valve.This valve provides positive shut-off and may be
installed at either the inlet or outlet end of the flowmeter.(Note: The
valve has 316SS wetted parts.)
RECEIPT OF EQUIPMENT
When the equipment is received, the outside packing case should
be checked for any damage incurred during shipment. If the packing
case is damaged, the local carrier should be notified at once
regarding his liability. Carefully remove the equipment from the
packing case and inspect for damaged or missing parts.
The flowmeters; are shipped completely assembled and tested. It
should not be necessary to tighten or adjust any parts when
received.
RETURN SHIPMENT
Do not return any merchandise without an Authorized Return (AR)
number.Call OMEGA Customer Service Department at (203) 359-
1660.
INSTALLATION
The flowmeter should be mounted within 6° of true vertical.The inlet
connection to the flowmeter is in the bottom end fitting.The
connections are normally horizontal, female NPT. Be sure that the
piping is adequately supported to prevent undue strain on the meter.
Both end fittings of the flowmeter may be rotated in 90° increments.
To rotate the end fittings simply remove the side plates and tube and
rotate the end fitting to the desired location.When the meter is
reassembled, the side plates and end fittings are self-aligning.
CAUTION
When installing or reassembling the flowmeter, the following
torque specifications must be strictly adhered to or permanent
damage to the meter will result.
Inlet and Outlet Connections: 2 ft. lbs.
Side Plate & Window Screws: 2-3 in. lbs.
Both end fittings are drilled to accept 1/2 inch long No.6 self tapping screws to facilitate front-of-panel mounting.When front-ofpanel mounting is specified at time of initial order, the panel
mounting screws (4) are provided.When installing self-tapping
screws, do not overtighten.
SPECIFICATIONS
CAUTION Do not operate this instrument in excess of specifications
listed below.
SCALES
LENGTH:
FL-1700: 65 mm
FL-1800: 150 mm
GRADUATIONS:
FL-1700: 0-65 mm, Direct reading for air and water
FL-1800: 0-150 mm with correlation charts for air and water
RATINGS
PRESSURE: 150 psig at temperatures up to 1000°F
ACCURACY:
FL-1700: ±10% full scale
FL-1800: ±5% full scale
REPEATABILITY:
FL-1700: ±1/2% full scale
FL-1800: ±1/2% full scale
CONNECTIONS: 1/4" NPT, female horizontal
CAPACITIES
MODEL FL-1700
RECOMMENDED INSTALLATION PRACTICES
Water hammer and surges can be damaging to any flowmeter
and must always be avoided.
Water hammer occurs when a liquid flow is suddenly stopped as
with quick closing and solenoid operated valves. Surges occur
when flow is suddenly begun, as when a pump is turned on at full
power or a valve is quickly opened.
Liquid surges are particularly damaging to flowmeters if the pipe
is originally empty.To avoid damaging surges, fluid lines should
remain full (if possible) and pumps should be brought up to
power slowly and valves opened slowly. In addition, to avoid both
water hammer and surges, a surge chamber should be installed.
Model No. Air Model No. Water
Air Range Water Range
FL-1701 .01 - .13 SCFH FL-1711 .001- .011 GPH
FL-1702 .02 - .15 SCFH FL-1712 .001 - .013 G PH
FL-1703 .09 - .95 SCFH FL-1713 .011 - .11 GPH
FL-1704 .38 - 3.8 SCFH FL-1714 .065 - .65 GPH
FL-1705 1. 3 - 13 SCFH FL-1715 .24 - 2.4 GPH
FL-1706 4.4 - 44 SCFH FIL 1716 .8 - 8 GPH
FL-1706C 13 - 130 SC FH I F1 1716C 2.8 - 28GPH
2
MODEL FL-1800
NOTE:All air flows given are at 14.7 psia and 70°F.
OPERATION
CAUTION
During operation, do not exceed pressure and temperature
specifications.
After the flowmeter has been installed in the flow system, it is ready
for operation.Gradually introduce flow into the system to prevent a
flow surge or thermal shock to the flowmeter.
DISASSEMBLY AND CLEANING
It is recommended the user periodically inspect the tube and float,
and clean if necessary.Dirt or foreign materials adhering to the tube
and float may cause inaccuracy and sticking of the float.To
disassemble, use the following procedure:
1 .Remove the plastic safety shield.
2. Loosen the seal spindle by turning it counterclockwise.The tube
may now be canted out of the meter housing.If it is desired to
clean the metering tube, float, and float stops as an assembly,
(using a solvent or ultrasonic cleaner) only the above two steps
are required. However, if complete disassembly is required, use
the remaining steps.
3. Using a small hook, remove either Teflon float stop from the
metering tube, and remove the float.Be careful not to chip tube
ends.
4. Packing seats and packing inserts now may be removed.
5. With the metering tube out, the seal spindle may be rotated
clockwise for removal. It should not be necessary to remove the
seal spindle unless the o-ring which seals the spindle requires
replacement.The o-ring may be used as long as it is not torn or
distorted,
6. The metering tube, made of borosilicate glass, may be cleaned
with any solvent that does not attack glass. Kynar parts may be
cleaned with a warm soap and water solution.Air dry thoroughly.
CAUTION
Do not attempt to clean Kynar parts with any type of solvent or
permanent damage to the meter may result.
7. If the flowmeter is equipped with a control valve, the valve may
be removed by turning the valve body counterclockwise.
Note The standard valve may be disassembled for cleaning.Do not
attempt to disassemble the NRS valve. Should the valve require
cleaning, consult OMEGA Engineering Customer Service
Department at 1-800-622-2378.
REASSEMBLY PROCEDURE (Refer to applicable parts
diagram.)
1 .Use the reverse of steps 1 through 5 of the disassembly
procedure to reassemble the meter.
CAUTION
When reassembling the flowmeter, the following torque
specifications must be strictly adhered to or permanent
damage to the meter will result.
Inlet and Outlet Connections: 2 ft. lbs.
Side Plate & Window Screws: 2-3 in. lbs.
2. When replacing the packing seats in the flowmeter body, be sure
the packing inserts are approximately I/16", above the top of the
packing seat.Also be certain the tube seats firmly on the packing
seats and does not overlap onto the end block.
3. The seal spindle serves to radially compress the tube seat
gasket and exert a uniform pressure on the metering tube to
prevent any possibility of leakage. Do not overtighten the seal
spindle.
4. If the flowmeter is equipped with a control valve, the valve should
be installed and hand tightened only. Do not overtighten valve or
permanent damage to the meter may result.
Max. Flow Rate
Meter Water
Size Tube No. Float Mtl- (cc/min.) Air
FL-1801 Glass .537 49 cc/min.
FL-1802 Glass 1.11 96 cc/min.
FL-1803 Glass 5.75 370 cc/min.
2 FL-1804 Glass 16.6 .82 LPM
FL-1805 Glass 52.8 2.35 LPM
FL-1806 Glass 84.6 3.8 LPM
FL-1807 Glass 200 8.6 LPM
6 FL-1808 Glass 573 23.5 LPM
FL-1808C Carboloy 1950 60LPM
Dimensions
Meter Scale A B C
FL-1700 65 mm 5 23/3 4 1/2 5 3/8
FL-1800 150 mm 10 1/32 8 13/16 9 11/16
Loading...