Series LFM Polycarbonate Flowmeters

Chemically Resistant, In-Line or Panel Mount Options, Adjustable Set Point Indicator Option

The SERIES LFM Polycarbonate Flowmeters are made of precision, injection molded polycarbonate bodies and fittings. This series consists of LFMA, LFMB, LFMC, LFMD, LFME and LFMF flowmeters with 3" (76 mm), 6" (152 mm), 5" (127 mm), 6" (152 mm), 8" (203 mm) and 11" (279 mm) respective scales. They feature dual, direct reading scales measuring in both GPM and LPM.

CAUTION: Series LFM Flowmeters are for indoor use only or areas without direct sunlight. Polycarbonate is adversely affected by ultraviolet light.

Product Applications

  • Chill water flow
  • Reverse osmosis systems
  • Deionized water systems

Models & Ordering

Filter By

Model Description Usually Ships Price Order
LFMA-01-A2
Ships: Next Day
Price: $38.50
Polycarbonate flowmeter, range 0.1-1 GPM (.5-4 LPM) water, 1/2" male NPT, 316 SS float. Next Day $38.50 Order
LFMA-02-A2
Ships: Next Day
Price: $38.50
Polycarbonate flowmeter, range 0.2-2 GPM (1-7 LPM) water, 1/2" male NPT, 316 SS float. Next Day $38.50 Order
LFMA-03-A2
Ships: Next Day
Price: $38.50
Polycarbonate flowmeter, range 0.5-5 GPM (1.8-18 LPM) water, 1/2" male NPT, 316 SS float. Next Day $38.50 Order
LFMB-04-A2
Ships: Consult Factory
Price: $48.25
Polycarbonate flowmeter, range 0.1-1 GPM (.5-4 LPM) water, 1/2" male NPT, 316 SS float. Consult Factory $48.25 Order
LFMB-05-A2
Ships: Consult Factory
Price: $48.25
Polycarbonate flowmeter, range 0.2-2 GPM (1-7 LPM) water, 1/2" male NPT, 316 SS float. Consult Factory $48.25 Order
LFMB-06-A2
Ships: Consult Factory
Price: $48.25
Polycarbonate flowmeter, range 0.5-5 GPM (1.8-18 LPM) water, 1/2" male NPT, 316 SS float. Consult Factory $48.25 Order
LFMC-07-A2
Ships: Next Day
Price: $55.00
Polycarbonate flowmeter, range 0.25-2.5 GPM (1-10 LPM) water, 1/2" male NPT, 316 SS float. Next Day $55.00 Order
LFMC-08-A2
Ships: Next Day
Price: $55.00
Polycarbonate flowmeter, range 0.5-5 GPM (1.8-18 LPM) water, 1/2" male NPT, 316 SS float. Next Day $55.00 Order
LFMC-09-A2
Ships: Next Day
Price: $55.00
Polycarbonate flowmeter, range 0.8-8 GPM (3-30 LPM) water, 1/2" male NPT, 316 SS float. Next Day $55.00 Order

Specifications

Service:
Water.
Wetted Materials:
Body: Polycarbonate; Flange nut: ABS; Float stop: LFMA, LFMB, LFMC: ABS; LFMD, LFME, LFMF: Polypropylene; O-rings: Fluoroelastomer; Rod & float: 316 SS; Connections: 20 mm & 63 mm metric union fittings: ABS; 32 mm & 40 mm metric union fittings: PVC; 1/2" & 3/4" male NPT fittings for LFMA, LFMB, LFMC: ABS; 3/4" male and female NPT fittings for LFMD: PA66 nylon; 1" & 2" male NPT fittings: PA66 nylon.
Pressure Limit:
87 psi (6 bar) at 68°F (20°C); 90° elbow fittings 116 psi (8 bar) at 68°F (20°C).
Accuracy:
±5%.
Process Connection:
LFMA: 1/2" male NPT. Optional 20 mm metric union; LFMB: 1/2" male NPT. Optional 20mm metric union or 1/2" male NPT with 90° elbow; LFMC: 1/2" male NPT. Optional 20 mm metric union, 3/4" male NPT, or 1/2" male NPT with 90° elbow; LFMD: 3/4" male NPT. Optional 32 mm metric union, 3/4" female NPT, or 3/4" male NPT with 90° elbow; LFME: 1" male NPT. Optional 40 mm metric union, 1" female NPT, or 1" male NPT with 90° elbow; LFMF: 2" male NPT. Optional 63 mm metric union or 2" female NPT.
Weight:
LFMA: 2 oz (56.7 g); LFMB: 3 oz (85.0 g); LFMC: 4 oz (113.4 g); LFMD: 10 oz (283.5 g); LFME: 15 oz (425.2 g); LFMF: 40 oz (1.1 kg).
CAUTION: Series LFM Flowmeters are for indoor use only or areas without direct sunlight. Polycarbonate is adversely affected by ultraviolet light.

Features

  • Low installation costs with standard in-line male NPT process connections and 90° elbow fitting for panel mount option
  • Heat and chemically resistant polycarbonate body and fittings feature a low cost for high durability
  • Textured background on flowmeter bodies enhance scale readability saving time
  • Easy to clean bodies yield low maintenance costs
  • Adjustable set point indicator allows for easy visual set point indication decreasing costly flow reading error for LFMC, LFMD, LFME & LFMF

Accessories

Model Number Description Usually Ships Price Order
20 mm metric union fitting - ABS (Series LFMA). A-560 20 mm metric union fitting - ABS (Series LFMA). Next Day $7.50 Order
1/2 A-566 1/2" male NPT fitting - ABS (Series LFMA). Next Day $7.00 Order
A-561 20 mm metric union fitting - ABS (Series LFMB). Consult Factory $7.50 Order
1/2 A-567 1/2" male NPT fitting - ABS (Series LFMB & LFMC). Next Day $7.00 Order
1/2 A-575 1/2" male NPT with 90° elbow fitting (2) - PVC (Series LFMB). Next Day $12.00 Order
20 mm metric union fitting - ABS (Series LFMC). A-562 20 mm metric union fitting - ABS (Series LFMC). Consult Factory $7.50 Order
3/4 A-568 3/4" male NPT fitting - ABS (Series LFMC). Next Day $8.00 Order
1/2 A-576 1/2" male NPT with 90° elbow fitting (2) - PVC (Series LFMC). Next Day $14.00 Order
A-563 32 mm metric union fitting - PVC (Series LFMD). Consult Factory $9.00 Order
A-569 3/4" male NPT fitting - nylon (Series LFMD). Consult Factory $10.00 Order
3/4 A-572 3/4" female NPT fitting - nylon (Series LFMD). Next Day $12.00 Order
3/4 A-577 3/4" male NPT with 90° elbow fitting (2) - PVC (Series LFMD). Next Day $18.00 Order
40 mm metric union fitting - PVC (Series LFME). A-564 40 mm metric union fitting - PVC (Series LFME). Next Day $14.00 Order
1 A-570 1" male NPT fitting - nylon (Series LFME). Next Day $15.00 Order
1 A-573 1" female NPT fitting - nylon (Series LFME). Consult Factory $17.00 Order
1 A-578 1" male NPT with 90° elbow fitting (2) - PVC (Series LFME). Next Day $30.00 Order
A-565 63 mm metric union fitting - ABS (Series LFMF). Next Day $19.00 Order
A-571 2" male NPT fitting - nylon (Series LFMF). Next Day $20.00 Order
2 A-574 2" female NPT fitting - nylon (Series LFMF). Next Day $22.00 Order
NISTCAL-FL1 NIST traceable calibration certificate for variable area flowmeters. NOTE: EQUAL CERTS WILL BE CHARGED PER UNITS PURCHASED. Less Than 1 Week $215.00 Order

Videos

Product Literature

Manuals

Catalog Pages

Drawings

Questions

Question
I am looking to use an "Air" flowmeter RMA-6-SSV to monitor CO2 flow. I am wondering if there are are any concerns or correction factors I need to apply.
Answer
A specific gravity correction factor will need to be considered when monitoring other gases with a meter calibrated for air. The correction factor equation is as follows: Q2=Q1 x sqrt (1/S.G.) Where: Q1= Observed Flowmeter reading Q2= Standard Flow Corrected for Specific Gravity 1= Specific Gravity of Air or Water S.G.= Specific Gravity of media being used in flowmeter originally calibrated for air or water.
This equation can be found in the beginning of the Flow section in the catalog. Alternatively, special ranges and scales can be provided; for specific information please contact our customer service department.
For further information, see our "Tech & Specs" Video Blog: Fix your Flow... Specific Gravity and Pressure Corrections for Variable Area Flowmeters (Episode 4), in Dwyer's Video Library.

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