Direct Read Variable Area Flow Meters

FLD Series

^SGD263.50 FLDA3220ST

PLACE ORDER

Direct Read Variable Area Flow Meters for Air, Water, N₂, H₂, CO₂, Ar, He, and O₂
Rib-Guided or Fluted Metering Tubes Facilitate Stable, Accurate Readings
Magnifier Lens in Front Shields to Enhance Reading Resolution
Interchangeability of Flow Tubes and Floats
Ease of Installation and Exchange of Flow Tube
Simple Means of Mounting

Variable Area Flow Meters & Switches - View related products

Description

Designed for direct read flow rates, the FLD Series variable area flow meter is a precision instrument embodying the inherent simplicity, versatility and economy of the classical variable area flow meter. It is particularly suitable for metering carrier gases in chromatography, indicating and controlling gases in manufacturing processes, liquid and gas measurement in laboratories, pilot plants, flow and level indicating, etc. Shipped completely assembled, flow meters include standard mounting fittings in a choice of materials, side plates, thick protective magnifying front shield and back plate, built-in control valve, and flow tubes. Panel-mounting style is convertible to bench mounting through the use of the optional acrylic tripod, FLTR-1. The tripod has a built-in spirit leveler and leveling screws.

Meters come with built-in 6 turn needle valves, high precision metering valves with “non-rising stems” 16 turn, or with no valves. The higher cost of the high resolution valves is justified whenever high sensitivity control and resolution are desirable-particularly in conjunction with metering tubes of very low flow rates. Generally, for gas metering it is recommended that valves are positioned at inlets (bottom) for liquids valves may be positioned either at inlets or outlets (top). For vacuum services, valves must be mounted at outlets. If unspecified at the time of ordering, meters will be shipped with valves mounted at the inlets.

SPECIFICATIONS
Standard Accuracy: ±5% of full scale (FS)
Repeatability: ±0.25%
Useful Flow Range: 10:1 minimum
Maximum Operating Pressure: 200 psig/13.8 bars
Maximum Operating Temperature: 121°C (250°F)

Construction
Flow Tubes: Heavy walled borosilicate glass
Floats: Glass, red sapphire, 316 stainless steel, carboloy and tantalum
Choice of Mounting Fittings in Contact with Fluids: Aluminum, black anodized or 316 stainless steel
Side-Panels: Aluminum, black anodized
Front Shield: Polycarbonate resin with longitudinal magnifier lens for enhanced reading resolution
Back Plate: 1/8" thick white acrylics
O-Rings and Packing: Buna O-rings in aluminum/brass model. FKM O-rings in stainless steel meters
Optional: Perfluoroelastomer and EPR
Connections: 1/8 NPT female inlet and outlet connections

(Specify Model Number)

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Part Number/Desc.

Qty

Description

ALUMINUM FRAMES

65mm Water Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDW3201S

SGD298.00

Availability: 5 weeks

1 L/min

FLDW3202ST

SGD287.00

Availability: 5 weeks

1.2 L/min

FLDW3203ST

SGD263.00

Availability: 5 weeks

3 L/hr

FLDW3204G

SGD263.50

Availability: 5 weeks

0.5 mL/min

FLDW3205ST

SGD263.50

Availability: 5 weeks

6 mL/min

FLDW3206G

SGD263.00

Availability: 5 weeks

25 mL/min

FLDW3207ST

SGD263.50

Availability: 5 weeks

60 mL/min

FLDW3208ST

SGD263.00

Availability: 5 weeks

115 mL/min

FLDW3209ST

SGD249.00

Availability: 5 weeks

150 mL/min

FLDW3210G

SGD286.84

Availability: 5 weeks

250 mL/min

FLDW3211G

SGD286.84

Availability: 5 weeks

500 mL/min

FLDW3212ST

SGD278.00

Availability: 5 weeks

750 mL/min

65mm Air Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDA3201C

SGD263.00

Availability: 5 weeks

2.2 scfh

FLDA3202G

SGD263.00

Availability: 5 weeks

6 scfh

FLDA3203ST

SGD263.50

Availability: 5 weeks

10 scfh

FLDA3204ST

SGD263.00

Availability: 5 weeks

18 scfh

FLDA3205ST

SGD249.00

Availability: 5 weeks

25 scfh

FLDA3206ST

SGD263.50

Availability: 5 weeks

50 scfh

FLDA3207ST

SGD287.00

Availability: 5 weeks

90 scfh

FLDA3208C

SGD286.84

Availability: 1 week

150 scfh

FLDA3209C

SGD287.00

Availability: 5 weeks

0.6 scfm

FLDA3210G

SGD263.50

Availability: 5 weeks

1 L/min

FLDA3211G

SGD269.00

Availability: 5 weeks

1.15 L/min

FLDA3212ST

SGD263.50

Availability: 5 weeks

2 L/min

FLDA3213ST

SGD263.50

Availability: 5 weeks

4 L/min

FLDA3214G

SGD263.50

Availability: 5 weeks

5 L/min

FLDA3215ST

SGD263.50

Availability: 5 weeks

10 L/min

FLDA3216ST

SGD286.84

Availability: 5 weeks

16 L/min

FLDA3217ST

SGD263.50

Availability: 5 weeks

25 L/min

FLDA3218ST

SGD272.00

Availability: 1 week

40 L/min

FLDA3219G

SGD263.50

Availability: 1 week

7 mL/min

FLDA3220ST

SGD263.50

Availability: 1 week

50 mL/min

FLDA3221ST

SGD249.42

Availability: 1 week

75 mL/min

FLDA3222G

SGD263.50

Availability: 1 week

100 mL/min

FLDA3223ST

SGD263.00

Availability: 3 weeks

130 mL/min

FLDA3224C

SGD263.50

Availability: 5 weeks

250 mL/min

FLDA3225C

SGD263.50

Availability: 1 week

500 mL/min

FLDA3226G

SGD263.00

Availability: 5 weeks

1000 mL/min

150mm Water Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDW3401C

SGD410.00

Availability: 5 weeks

29 gph

FLDW3402S

SGD420.00

Availability: 5 weeks

0.22 gpm

FLDW3403C

SGD410.00

Availability: 5 weeks

0.45 gpm

FLDW3404ST

SGD410.00

Availability: 5 weeks

1.2 L/min

FLDW3405T

SGD418.04

Availability: 5 weeks

2 L/min

FLDW3406S

SGD382.00

Availability: 5 weeks

1 mL/min

FLDW3407S

SGD381.35

Availability: 5 weeks

10 mL/min

FLDW3408ST

SGD381.35

Availability: 5 weeks

20 mL/min

FLDW3409G

SGD381.35

Availability: 5 weeks

50 mL/min

FLDW3410G

SGD382.00

Availability: 5 weeks

60 mL/min

FLDW3411G

SGD382.00

Availability: 5 weeks

100 mL/min

FLDW3412C

SGD381.35

Availability: 5 weeks

237 200 mL/min

FLDW3413ST

SGD382.00

Availability: 5 weeks

237 500 mL/min

150mm Air Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDA3401C

SGD382.00

Availability: 5 weeks

2.5 scfh

FLDA3402G

SGD382.00

Availability: 5 weeks

5 scfh

FLDA3403G

SGD382.00

Availability: 5 weeks

8.25 scfh

FLDA3404ST

SGD382.00

Availability: 5 weeks

10 scfh

FLDA3405ST

SGD382.00

Availability: 5 weeks

16.5 scfh

FLDA3406C

SGD382.00

Availability: 5 weeks

23 scfh

FLDA3407G

SGD410.00

Availability: 5 weeks

55 scfh

FLDA3408ST

SGD410.00

Availability: 5 weeks

90 scfh

FLDA3409ST

SGD410.00

Availability: 5 weeks

94 scfh

FLDA3410S

SGD420.00

Availability: 5 weeks

1 scfm

FLDA3411ST

SGD410.00

Availability: 5 weeks

1.5 scfm

FLDA3412C

SGD381.35

Availability: 5 weeks

1.25 L/min

FLDA3413ST

SGD382.00

Availability: 5 weeks

1.8 L/min

FLDA3414G

SGD361.00

Availability: 5 weeks

2.5 L/min

FLDA3415G

SGD382.00

Availability: 5 weeks

4 L/min

FLDA3416S

SGD382.00

Availability: 5 weeks

4.5 L/min

FLDA3417ST

SGD382.00

Availability: 5 weeks

4.8 L/min

FLDA3418S

SGD382.00

Availability: 5 weeks

5 L/min

FLDA3420C

SGD381.35

Availability: 5 weeks

10 L/min

FLDA3421ST

SGD382.00

Availability: 5 weeks

17 L/min

FLDA3422G

SGD410.00

Availability: 5 weeks

23 L/min

FLDA3425S

SGD381.35

Availability: 5 weeks

25 mL/min

FLDA3423ST

SGD430.00

Availability: 5 weeks

42 L/min

FLDA3426S

SGD381.35

Availability: 5 weeks

52 mL/min

FLDA3424C

SGD410.00

Availability: 5 weeks

60 L/min

FLDA3427C

SGD382.00

Availability: 5 weeks

75 mL/min

FLDA3428ST

SGD381.35

Availability: 5 weeks

100 mL/min

FLDA3429C

Consult Sales

Availability:

100 mL/min

FLDA3430ST

SGD382.00

Availability: 5 weeks

150 mL/min

FLDA3431ST

SGD381.35

Availability: 5 weeks

200 mL/min

FLDA3432G

SGD381.35

Availability: 5 weeks

300 mL/min

FLDA3433S

SGD381.35

Availability: 5 weeks

500 mL/min

FLDA3434G

SGD381.35

Availability: 5 weeks

800 mL/min

STAINLESS STEEL FRAMES

65mm Water Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDW3301S

SGD560.00

Availability: 5 weeks

1 L/min

FLDW3302ST

SGD550.34

Availability: 5 weeks

1.2 L/min

FLDW3303ST

SGD525.00

Availability: 5 weeks

3 L/hr

FLDW3304G

SGD525.00

Availability: 5 weeks

0.5 mL/min

FLDW3305ST

SGD525.00

Availability: 5 weeks

6 mL/min

FLDW3306G

SGD525.00

Availability: 5 weeks

25 mL/min

FLDW3307ST

SGD525.00

Availability: 5 weeks

60 mL/min

FLDW3308ST

SGD525.00

Availability: 5 weeks

115 mL/min

FLDW3309ST

SGD525.00

Availability: 5 weeks

150 mL/min

FLDW3310G

SGD550.00

Availability: 5 weeks

250 mL/min

FLDW3311G

SGD550.00

Availability: 5 weeks

500 mL/min

FLDW3312ST

SGD525.00

Availability: 5 weeks

750 mL/min

65mm Air Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDA3301C

SGD525.00

Availability: 5 weeks

2.2 scfh

FLDA3302G

SGD525.00

Availability: 5 weeks

6 scfh

FLDA3303ST

SGD525.00

Availability: 5 weeks

10 scfh

FLDA3304ST

SGD525.00

Availability: 5 weeks

18 scfh

FLDA3305ST

SGD555.00

Availability: 5 weeks

25 scfh

FLDA3306ST

SGD525.00

Availability: 5 weeks

50 scfh

FLDA3307ST

SGD550.00

Availability: 5 weeks

90 scfh

FLDA3308C

SGD550.00

Availability: 5 weeks

150 scfh

FLDA3309C

SGD525.00

Availability: 5 weeks

0.6 scfm

FLDA3310G

SGD528.11

Availability: 5 weeks

1 L/min

FLDA3311G

SGD528.11

Availability: 5 weeks

1.15 L/min

FLDA3312ST

SGD525.00

Availability: 5 weeks

2 L/min

FLDA3313ST

SGD525.00

Availability: 5 weeks

4 L/min

FLDA3314G

SGD525.00

Availability: 5 weeks

5 L/min

FLDA3315ST

SGD525.00

Availability: 5 weeks

10 L/min

FLDA3316ST

SGD580.00

Availability: 5 weeks

16 L/min

FLDA3317ST

SGD525.00

Availability: 5 weeks

25 L/min

FLDA3318ST

SGD550.00

Availability: 5 weeks

40 L/min

FLDA3319G

SGD528.11

Availability: 5 weeks

7 mL/min

FLDA3320ST

SGD525.00

Availability: 5 weeks

50 mL/min

FLDA3321ST

SGD525.00

Availability: 5 weeks

75 mL/min

FLDA3322G

SGD525.00

Availability: 5 weeks

100 mL/min

FLDA3323ST

SGD525.00

Availability: 5 weeks

130 mL/min

FLDA3324C

SGD525.00

Availability: 5 weeks

250 mL/min

FLDA3325C

SGD525.00

Availability: 5 weeks

500 mL/min

FLDA3326G

SGD525.00

Availability: 5 weeks

1000 mL/min

150mm Water Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDW3501C

SGD680.00

Availability: 5 weeks

29 gph

FLDW3502S

SGD700.00

Availability: 5 weeks

0.22 gpm

FLDW3503C

SGD645.00

Availability: 5 weeks

0.45 gpm

FLDW3504ST

SGD680.00

Availability: 1 week

1.2 L/min

FLDW3505T

SGD700.00

Availability: 5 weeks

2 L/min

FLDW3506S

SGD680.00

Availability: 5 weeks

1 mL/min

FLDW3507S

SGD678.20

Availability: 5 weeks

10 mL/min

FLDW3508ST

SGD680.00

Availability: 5 weeks

20 mL/min

FLDW3509G

SGD680.00

Availability: 5 weeks

50 mL/min

FLDW3510G

SGD680.00

Availability: 5 weeks

60 mL/min

FLDW3511G

SGD680.00

Availability: 5 weeks

100 mL/min

FLDW3512C

SGD680.00

Availability: 5 weeks

200 mL/min

FLDW3513ST

SGD680.00

Availability: 5 weeks

500 mL/min

150mm Air Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDA3501C

SGD678.20

Availability: 5 weeks

2.5 scfh

FLDA3502G

SGD680.00

Availability: 5 weeks

5 scfh

FLDA3503G

SGD680.00

Availability: 5 weeks

8.25 scfh

FLDA3504ST

SGD678.20

Availability: 5 weeks

10 scfh

FLDA3505ST

SGD680.00

Availability: 5 weeks

16.5 scfh

FLDA3506C

SGD678.20

Availability: 5 weeks

23 scfh

FLDA3507G

SGD700.00

Availability: 5 weeks

55 scfh

FLDA3508ST

SGD700.43

Availability: 5 weeks

90 scfh

FLDA3509ST

SGD700.00

Availability: 5 weeks

94 scfh

FLDA3510S

SGD710.00

Availability: 5 weeks

1 scfm

FLDA3511ST

SGD700.00

Availability: 5 weeks

1.5 scfm

FLDA3512C

SGD678.20

Availability: 5 weeks

1.25 L/min

FLDA3513ST

SGD680.00

Availability: 5 weeks

1.8 L/min

FLDA3514G

SGD678.20

Availability: 5 weeks

2.5 L/min

FLDA3515G

SGD680.00

Availability: 5 weeks

4 L/min

FLDA3516S

SGD680.00

Availability: 5 weeks

4.5 L/min

FLDA3517ST

SGD680.00

Availability: 5 weeks

4.8 L/min

FLDA3518S

SGD680.00

Availability: 5 weeks

5 L/min

FLDA3519G

SGD678.20

Availability: 5 weeks

10 L/min

FLDA3520C

SGD680.00

Availability: 5 weeks

10 L/min

FLDA3521ST

SGD680.00

Availability: 5 weeks

17 L/min

FLDA3522G

SGD700.00

Availability: 5 weeks

23 L/min

FLDA3525S

SGD678.20

Availability: 5 weeks

25 mL/min

FLDA3523ST

SGD700.00

Availability: 5 weeks

42 L/min

FLDA3526S

SGD678.20

Availability: 5 weeks

52 mL/min

FLDA3524C

SGD700.00

Availability: 5 weeks

60 L/min

FLDA3527C

SGD715.00

Availability: 5 weeks

75 mL/min

FLDA3528ST

SGD678.20

Availability: 5 weeks

100 mL/min

FLDA3529C

Consult Sales

Availability:

100 mL/min

FLDA3530ST

SGD680.00

Availability: 5 weeks

150 mL/min

FLDA3531ST

SGD700.43

Availability: 5 weeks

200 mL/min

FLDA3532G

SGD680.00

Availability: 5 weeks

300 mL/min

FLDA3533S

SGD680.00

Availability: 5 weeks

500 mL/min

65mm Argon Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDAR3301G

SGD525.00

Availability: 5 weeks

2.5 scfh

FLDAR3302ST

SGD525.00

Availability: 1 week

10 scfh

FLDAR3303ST

SGD525.00

Availability: 5 weeks

22 scfh

FLDAR3304G

SGD550.34

Availability: 5 weeks

50 scfh

FLDAR3305S

SGD528.11

Availability: 5 weeks

1000 mL/min

150mm Argon Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDAR3501C

SGD678.20

Availability: 5 weeks

2 L/min

FLDAR3502ST

SGD678.20

Availability: 5 weeks

15 L/min

FLDAR3503S

SGD710.00

Availability: 5 weeks

25 L/min

FLDAR3504C

SGD680.00

Availability: 5 weeks

325 mL/min

FLDAR3505G

SGD680.00

Availability: 5 weeks

33 mL/min

65mm Carbon Dioxide Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDC3301G

SGD528.11

Availability: 5 weeks

1 L/min

FLDC3302G

SGD528.11

Availability: 5 weeks

6 L/min

FLDC3303ST

SGD525.00

Availability: 5 weeks

10 L/min

FLDC3304ST

SGD550.34

Availability: 5 weeks

35 L/min

FLDC3305ST

SGD525.00

Availability: 5 weeks

20 mL/min

FLDC3306G

SGD528.11

Availability: 5 weeks

55 mL/min

FLDC3307S

SGD528.11

Availability: 1 week

200 mL/min

150mm Carbon Dioxide Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDC3501G

SGD678.20

Availability: 5 weeks

100 mL/min

FLDC3502ST

SGD700.00

Availability: 5 weeks

300 mL/min

FLDC3503S

SGD710.00

Availability: 5 weeks

10 L/min

65mm Helium Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDHE3301S

SGD528.11

Availability: 5 weeks

65 mL/min

FLDHE3302G

SGD528.11

Availability: 5 weeks

120 mL/min

150mm Helium Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDHE3501S

Consult Sales

Availability:

1.25 scfh

FLDHE3502C

SGD678.20

Availability: 5 weeks

5 L/min

FLDHE3503ST

SGD678.20

Availability: 5 weeks

40 L/min

FLDHE3504G

SGD680.00

Availability: 5 weeks

100 mL/min

FLDHE3505C

SGD678.20

Availability: 1 week

500 mL/min

FLDHE3506G

SGD680.00

Availability: 5 weeks

1500 mL/min

65mm Hydrogen Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDH3301C

SGD528.11

Availability: 5 weeks

1.5 L/min

FLDH3302G

SGD528.11

Availability: 5 weeks

3.5 L/min

FLDH3303G

SGD525.00

Availability: 5 weeks

6 L/min

FLDH3304ST

SGD528.11

Availability: 5 weeks

42 L/min

FLDH3305G

SGD528.11

Availability: 3 weeks

35 mL/min

FLDH3306ST

SGD500.00

Availability: 5 weeks

100 mL/min

FLDH3307S

SGD525.00

Availability: 5 weeks

150 mL/min

FLDH3308G

SGD528.11

Availability: 5 weeks

600 mL/min

150mm Hydrogen Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDH3501S

SGD710.00

Availability: 5 weeks

225 scfh

FLDH3502G

SGD680.00

Availability: 5 weeks

100 mL/min

65mm Nitrogen Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDN3301ST

SGD528.11

Availability: 5 weeks

12 L/min

FLDN3302G

SGD528.11

Availability: 5 weeks

6 mL/min

FLDN3303ST

SGD528.11

Availability: 5 weeks

50 mL/min

FLDN3304S

SGD528.11

Availability: 5 weeks

60 mL/min

FLDN3305G

SGD528.11

Availability: 5 weeks

120 mL/min

FLDN3306S

SGD528.11

Availability: 5 weeks

200 mL/min

150mm Nitrogen Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDN3501ST

SGD700.43

Availability: 5 weeks

1.6 scfm

FLDN3502G

SGD678.20

Availability: 5 weeks

2 L/min

FLDN3503G

SGD678.20

Availability: 5 weeks

100 mL/min

FLDN3504C

SGD680.00

Availability: 5 weeks

200 mL/min

FLDN3505C

SGD678.20

Availability: 5 weeks

300 mL/min

FLDN3506S

SGD678.20

Availability: 5 weeks

500 mL/min

65mm Oxygen Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDO3301G

SGD525.00

Availability: 5 weeks

1 L/min

FLDO3302ST

SGD525.00

Availability: 5 weeks

4 L/min

FLDO3303ST

SGD525.00

Availability: 5 weeks

8 L/min

FLDO3304ST

SGD550.00

Availability: 5 weeks

15 L/min

FLDO3305G

SGD525.00

Availability: 5 weeks

50 mL/min

FLDO3306ST

SGD528.11

Availability: 5 weeks

300 mL/min

FLDO3307ST

SGD550.00

Availability: 5 weeks

500 mL/min

150mm Oxygen Flow Maximum Flow Rates, Minimum is 10% of Maximum

FLDO3501S

SGD680.00

Availability: 5 weeks

1 L/min

FLDO3502S

SGD678.20

Availability: 5 weeks

5 L/min

FLDO3503C

SGD678.20

Availability: 5 weeks

10 L/min

FLDO3504ST

SGD680.00

Availability: 5 weeks

16.50 L/min

FLDO3505C

SGD700.00

Availability: 5 weeks

58 L/min

FLDO3506ST

SGD700.00

Availability: 5 weeks

250 mL/min

FLDO3507S

SGD680.00

Availability: 5 weeks

400 mL/min

Accessories

FLTR-1

SGD133.30

Availability: 4 weeks

Tripod for one Variable Area Flow Meter

FLTR-2

SGD133.30

Availability: 4 weeks

Tripod for 2, 4 and 6 isolated channels or manifolding at top.

FLTR-3

SGD127.00

Availability: 4 weeks

Tripod for 3 and 5 isolated channels or manifolding at bottom.

Order By Part Number

Part Number

Qty

Part Number

Qty

† All prices on this site are shown in Singapore Dollars.
Note: Comes complete with operator's manual.

Minimum flow rate is 10% of the maximum rate shown.

“G” suffix denotes glass float, “ST” suffix denotes 316 SS float, “C” suffix denotes carboloy float and “S” denotes red sapphire float.

For units without valve, add suffix "-NV" to model number and subtract $10 for aluminum; subtract $13 for for 316SS.

For 16 turn, high resolution non-rising stem valve for 150 mm variable area flow meters, add suffix "-HRV" to model number and add $60 for aluminum units and $120 for stainless steel units.

For O2 Cleaning add "-O2CLEAN" to the part number and $125 to the price.

No NIST traceable calibration is available.

(OPTIONS SHOWN IN THIS "NOTE" ABOVE ARE PRICED IN US$)

Ordering Example: (1) FLDN3501ST 6 turn valve stainless steel unit, with 316SS float, range of 1.6 scfm nitrogen, SGD700.43