Omega Products FL-1004 Installation Manual

FL-1002, FL-1004, FL-1006 PURGE ROTAMETERS

Operator’s Manual:

INSTRUCTION

SHEET

M0369/0201

General Description

The OMEGA® FL-1000 Series Rotameters are low-flow variable area flow meters molded of high impact polycarbonate. The single piece molded unit forms he tapered ribbed tube, integral float stops, and front bezel.

The o-ring sealed metal connector inserts prevent possible cracking of the meter body by overtightening. The rotatable connectors also act as line unions to simplify piping.

The FL-1000 Series are equipped with a standard control valve, integrally mounted at the inlet or outlet of the meter. They are also available without a valve.

Maximum flow rates range from 0.50 to 100 scfh on air, or 0.1 to 20 gph on water. Refer to Capacities table for exact ranges

available.

Specifications

SCALES

Nominal Length: 37mm Display: Direct reading for air or water

Connections: 1/8” Female NPT, Horizontal (inlet

and outlet) fully rotatable

Accuracy: Standard accuracy ±10% of full

scale

Repeatability: ±1% of full scale

RATINGS

Rangeability: 10:1

Maximum Operating Pressure: (100psig)

Operating Temperature (20°to 130°F). Fluid Temperature

below 32°F can cause frosting of plastic meter body.

Pressure Drop with Valve: FL-1002, FL-1012: 96”

FL-1004, FL-1014: 136”

FL-1006, FL-1016: 191” The figures represent the pressure drop in inches of water column across the meter with the float in the maximum flowrate position.

OPTIONS: 1) Brass end fittings, with valve (add suffix B)

2) 316SS end fitting without valve (add suffix “NV”)

Materials of Construction

Meter Body, Clean-out Plug, Float Stop: FDA approved polycarbonate

Floats: 316 Stainless Steel (Spherical) O-rings: Viton Line Connectors: Brass or Stainless Steel

Valve: Brass or Stainless Steel

Unpacking Instruction

Remove the Packing List and verify that you have received all equipment. If you have any questions about the shipment, please call the OMEGA Customer Service Department.

When you receive the shipment, inspect the container and equipment for any signs of damage. Note any evidence of rough handling in transit. Immediately report any damage to the shipping agent.

NOTE

The carrier will not honor any claims unless all shipping material is saved for their examination. After examining and removing contents, save packing material and carton in the

event reshipment is necessary.

Dimensions

Installation

The flow meter is shipped completely assembled and tested at the factory. It should not be necessary to tighten or adjust any parts when received.

The meter must be mounted in a vertical position with the inlet (upstream flow line) connected to the bottom connection, and the outlet (downstream line) connected to the top connection. Standard connection adapters are horizontal female 1/8” NPT. Flexible pipe is recommended for use with the meter to avoid stressing the meter body.

The Rotameters are supplied with a “U” -shaped bracket to facilitate panel mounting. From the front of the panel, the meter is inserted into a 15/16 x 33/4” vertical panel cutout. The mounting bracket is installed from the rear of the panel and secured to the connector retainer plate with a single screw.

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 both water hammer and surges, a surge chamber should be installed.

CAPACITIES (Standard Scales)

Model No.

Air

Range

(SCFH)

Model No.

Water

Range (GPH)

FL-1002 FL-1004 FL-1006

0.5-5.5

2.0-20. 10-100

FL-1012 FL-1014 FL-1016

0.1-1.1

0.5-4.5

2.0-20.

Capacities are at metering conditions of 70 0 F, 121.1 o C and psia (101.3 kPa)

s (standard) designates reference condition of 700F and 14.7 psia

Operation

Caution: Do not operate this instrument in excess of temperature and pressure ratings or serious injury and /or damage to the instrument could result.

Maintenance

It is recommended that 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 clean the meter, remove it from the line

and flush with mild detergent solution or appropriate solvents. DO NOT use any solvent or cleaning solution which might attack the meter body.

Replacement Parts

There are no replacement parts available. For users desiring to stock spare parts, it is recommended a complete unit be kept on hand as a replacement.

Size

Float

∆P InchesW.C.

(With Valve)

∆P

InchesW .C.

Glass

316 Stainless Steel

Glass

33 96

42 1

136

191

1/4

3-1/2

Table 2 Pressure Drop

The figures above represent the pressure drop in inches of water across the meter with the float in maximum flow rate position.

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