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Series OMA Oxygen Flowmeter

RKA Regulator Kits

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.

Calibration Option is available in the Accessory tab.

Product Applications

Chill water flow
Reverse osmosis systems
Deionized water systems

Starting at $65.20

Ordering

Filter By

1" Male NPT Connection

1/2" Male NPT Connection

2" Male NPT Connection

3/4" Male NPT Connection

Grouped product items
Model	Description	Availability*	Price
LFMA-01-A2	Polycarbonate flowmeter, range 0.1-1 GPM (.5-4 LPM) water, 1/2" male NPT, 316 SS float.	1-3 days*	$65.20
LFMA-02-A2	Polycarbonate flowmeter, range 0.2-2 GPM (1-7 LPM) water, 1/2" male NPT, 316 SS float.	1-3 days*	$65.20
LFMA-03-A2	Polycarbonate flowmeter, range 0.5-5 GPM (1.8-18 LPM) water, 1/2" male NPT, 316 SS float.	1-3 days*	$65.20
LFMB-04-A2	Polycarbonate flowmeter, range 0.1-1 GPM (.5-4 LPM) water, 1/2" male NPT, 316 SS float.	15-16 Weeks*	$87.45
LFMB-05-A2	Polycarbonate flowmeter, range 0.2-2 GPM (1-7 LPM) water, 1/2" male NPT, 316 SS float.	15-16 Weeks*	$87.45
LFMC-07-A2	Polycarbonate flowmeter, range 0.25-2.5 GPM (1-10 LPM) water, 1/2" male NPT, 316 SS float.	1-3 days*	$97.80
LFMC-08-A2	Polycarbonate flowmeter, range 0.5-5 GPM (1.8-18 LPM) water, 1/2" male NPT, 316 SS float.	1-3 days*	$97.80
LFMC-09-A2	Polycarbonate flowmeter, range 0.8-8 GPM (3-30 LPM) water, 1/2" male NPT, 316 SS float.	1-3 days*	$97.80
LFMD-10-C2	Polycarbonate flowmeter, range 0.8-8 GPM (3-30 LPM) water, 3/4" male NPT, 316 SS float.	1-3 days*	$131.45
LFMD-11-C2	Polycarbonate flowmeter, range 1-10 GPM (4-40 LPM) water, 3/4" male NPT, 316 SS float.	1-3 days*	$131.45
LFME-12-F2	Polycarbonate flowmeter, range 1.2-12 GPM (5-50 LPM) water, 1" male NPT, 316 SS float.	1-3 days*	$191.45
LFME-13-F2	Polycarbonate flowmeter, range 2-20 GPM (8-80 LPM) water, 1" male NPT, 316 SS float.	1-3 days*	$191.45
LFME-14-F2	Polycarbonate flowmeter, range 2.5-25 GPM (10-100 LPM) water, 1" male NPT, 316 SS float.	1-3 days*	$191.45
LFMF-15-I2	Polycarbonate flowmeter, range 2.5-25 GPM (10-100 LPM) water, 2" male NPT, 316 SS float.	1-3 days*	$274.25
LFMF-16-I2	Polycarbonate flowmeter, range 5-45 GPM (20-180 LPM) water, 2" male NPT, 316 SS float.	1-3 days*	$274.25
LFMF-17-I2	Polycarbonate flowmeter, range 7-70 GPM (25-250 LPM) water, 2" male NPT, 316 SS float.	1-3 days*	$274.25

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

Support Library

Product Literature

Manuals

Instruction Manual

Catalog Pages

Series LFM Catalog Page

Drawings

FAQ

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.

Related

Series DR

Series RM

Series VF

Series LFM

Series VFC/VFCII

Series VA

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Accessories

Model	Description	Availability*	Price
NISTCAL-FL2	NIST traceable calibration certificate for variable area flowmeters (water). NOTE: EQUAL CERTS WILL BE CHARGED PER UNITS PURCHASED.	Less Than 1 Week*	$292.00
A-564	40 mm metric union fitting - PVC (Series LFME).	9-10 Weeks*	$20.95
A-567	1/2" male NPT fitting - ABS (Series LFMB & LFMC).	1-3 days*	$10.40
A-570	1" male NPT fitting - nylon (Series LFME).	9-10 Weeks*	$7.30
A-571	2" male NPT fitting - nylon (Series LFMF).	9-10 Weeks*	$29.50
A-572	3/4" female NPT fitting - nylon (Series LFMD).	9-10 Weeks*	$4.38
A-575	1/2" male NPT with 90° elbow fitting (2) - PVC (Series LFMB).	9-10 Weeks*	$4.38