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RMA-3

2" (51 mm) Polycarbonate SERIES RM RATE-MASTER®Variable Area Flowmeter

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Gas Flow, Max

2 SCFH 0.4 SCFH 200 SCFH 200 cm³/min 500 cm³/min 1000 cm³/min 2500 cm³/min 100 cm³/min 50 cm³/min 1 SCFH 10 l/min 25 l/min 50 l/min 70 l/min 100 l/min 5 l/min 0 m³/s 5 SCFH 10 SCFH 20 SCFH 50 SCFH 100 SCFH 150 SCFH 400 SCFH 500 SCFH 600 SCFH 1000 SCFH 1200 SCFH 1800 SCFH 10 SCFM 20 SCFM 30 SCFM

Process Connection Size

1/8 in 1/4 in 1/2 in

Valve Type

No Valve Stainless Steel Valve Top Mount Valve

Dual Range

No Yes

Liquid Flow, Max

0 m³/s 50 cm³/min 110 cm³/min 300 cm³/min 11 gal/h 24 gal/h 34 gal/h 50 gal/h 12 gal/h 20 gal/h 40 gal/h 100 gal/h 90 gal/h 1 GPM 2.2 GPM 4 GPM 7 GPM 10 GPM

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C$101.23 / each

Item# RMA-3

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Lead Time (If not in stock): 4 weeks

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Product Specs

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Brand
Accuracy	± 4 %
Applications	Chemicals, Environmental Monitoring, Medical
Compliance Note	Meets the technical requirements of EU Directive 2011/65/EU (RoHS II)
Dual Range	No
Gas Flow, Max	2 SCFH
Gas Flow, Min	0.2 SCFH
GrossWeightValue	0.25
Liquid Flow, Max	0 m³/s
Material Construction Option	N/A
Materials, Wetted	Aluminum, Black Glass, Buna-N (NBR), Polycarbonate, Stainless Steel
Media Compatibility	HVAC / room air
Operating Temperature, Max	130 °F
Process Connection Size	1/8 in
Process Connection Type	NPT Female
Proof Pressure	Up to 100 psi
Scale Length	2 in
Series ID	Series-RM
Spec Sheet QR URL	https://www.dwyeromega.com/en-us/precision-flowmeters-2-5-10-scales-nist-calibration-available-mountable/Series-RM/p/RMA-3?guid=701a700000ulrduaaq&utm_source=spec-sheet&utm_medium=qr-code&utm_campaign=prd-sku-spec-sheet&utm_content=auto-generated-sku-level-spec-sheet
Valve Type	No Valve
Weight	4 oz
Country of Origin	United States
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PDFs & Manuals

RM - Datasheet RM - Instruction Manual - RM RM - Instruction Manual - RKA RM - Quick Start Guide View More

Drawings

RMC_STEP_stepformats View More

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Accessories

100042-00

POINTER FLAG OPTION RMA FLMTR

C$14.06 / each

0 In Stock

QTY

100043-00

POINTER FLAG OPTION RMB FLMTR

C$14.78 / each

27 In Stock

QTY

100044-00

Optional pointer flag, for RMC flowmeter

C$14.78 / each

0 In Stock

QTY

RK-RMB

Regulator kit for RMB.

C$440.15 / each

0 In Stock

QTY

RKA

Regulator kit for RMA or VFA.

C$440.15 / each

0 In Stock

QTY

Reviews

Show Ratings & Reviews

4.8

(29)

Rated 5 out of 5 by Robert V from Quality Product Quality product that is the standard in our industry

Date published: 2025-10-06

Rated 5 out of 5 by Ron S from Product's quality second to none Dwyer Omega are known for their high-end products, never fails to deliver

Date published: 2026-07-20

Rated 5 out of 5 by Motion Ai from Built to last and Easy to use Tough Built, .Easy Swapping: You can instantly change the flow range without disturbing the pipes. This makes cleaning very simple.Quick Reading: Scales print on both sides of the tube. You do not need to do any tricky math to know the flow rate

Date published: 2026-07-02

Rated 4 out of 5 by MOTEDE from quality excellent product, it is great to be a wholesaler of this product

Date published: 2026-07-01

Rated 5 out of 5 by John Do from Great Product Arrived in estimated time, packaged well, product works as described.

Date published: 2026-06-25

Rated 5 out of 5 by Dave D RWT from Great flowmeters Great products. Highly recommend them for many applications.

Date published: 2026-04-24

Rated 5 out of 5 by Wray from Great Size! The size is great, able to see the flow ball accurately to make adjustments with the flow control valve.

Date published: 2026-04-20

Rated 5 out of 5 by Wray from Great product Flowmeter worked as planned, fast delivery, reasonable priced.

Date published: 2026-04-20

2" (51 mm) Polycarbonate SERIES RM RATE-MASTERVariable Area Flowmeter Reviews - page 2