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Overstock Deal Rmb-83d | Flowmeter | Range 1-20 Gph/0.065-1.25 Lpm Water. | Dwyer Gadget [GXI8YNPk]

$24.99 $79.99 -69%

See catalog product page for full listing Flowmeter | range 1-20 GPH/0.065-1.25 LPM water. Series RM Rate-Master® Polycarbonate Flowmeter 2", 5" or 10" Scale, Interchangeable Bodies* The Series RM Rate-Master® Flowmeters are a line of general use, d

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See catalog product page for full listing

Flowmeter | range 1-20 GPH/0.065-1.25 LPM water.

Series RM Rate-Master® Polycarbonate Flowmeter

2", 5" or 10" Scale, Interchangeable Bodies*

The Series RM Rate-Master® Flowmeters are a line of general use, direct reading precision flowmeters suitable for both gas and liquid applications. This Series consists of 2" (51 mm), 5" (127 mm) and 10" (254 mm) scales that can be panel or surface mounted with optional precision metering valves. Within a given Series, the Rate-Master® flowmeter bodies can be instantly interchanged, allowing the piping to remain undisturbed, interchangeability of the ranges, and easy cleaning.

NOTE: Effective immediately, the brass valve (-BV) option has been discontinued and the stainless steel valve (-SSV) is the suggested replacement.

NIST CALIBRATION available in Product Configurator.

DID YOU KNOW that you can add YOUR logo to our Rate-Master® flowmeter, call customer service for details.

California Residents:  Click Here for Proposition 65 WARNING.

*The Rate-Master® flowmeter bodies can be instantly interchanged within the same series scale size, allowing the piping to remain undisturbed, interchangeability of the ranges, and easy cleaning.

Product Applications

  • Medical equipment
  • Air samplers
  • Gas analyzers
  • Pollution monitors
  • Chemical injectors
  • Cabinet purging
  • Eliminate the need for troublesome conversions with direct reading scales
  • Reduce installation damage and cost due to stainless steel backbone that absorbs piping torque
  • Long operation life with durable, shatter-proof polycarbonate body
  • High repeatability enabled by precision injection molding around a precision tapered pin
  • Increased reading accuracy with special integral flow guides that stabilize float movement
  • Save time with instantaneous flow reading from scale graduations on both sides of the indicating tube

Series
RM Rate-Master® Polycarbonate Flowmeter
Category/Type
Flow
Type
Flowmeters
Series
RM Rate-Master® Polycarbonate Flowmeter
Service
Compatible gases and liquids.
Wetted Materials
Body: Polycarbonate; O-ring: Neoprene and Buna-N;Metal parts: SS; Float: SS; black glass;aluminum; K monel; tungsten carbide depending on range.
Temperature Limit
130°F (54°C).
Pressure Limit
100 psi (6.9 bar).
Accuracy
RMA: 4%; RMB: 3%; RMC: 2% of FS.
Process Connection
RMA: 1/8"; RMB: 1/4"; RMC: 1/2" female NPT.
Weight
RMA: 4 oz (113.4 g); RMB: 13 oz (368.5 g); RMC: 39 oz(1105.6 g).
Agency Approvals
Meets the technical requirements of EU Directive 2011/65/EU (RoHS II).
CAUTION
Dwyer® Rate-Master® flowmeters are designed to provide satisfactorylong term service when used with air; water; or other compatible media.Refer to factory for information on questionable gases or liquids. Causticsolutions; anti-freeze (ethylene glycol) and aromatic solvents shoulddefinitely not be used.

Resources

^^Flowmeter, range 1-20 GPH/0.065-1.25 LPM water.^^

What Our Customers Say

January 15, 2026

Absolutely no complaints!

It’s a very sound and a well-constructed tool.

- Guto O..

January 15, 2026

Absolutely no complaints!

A high-quality item. I'm very happy with it.

- Sian F..

January 15, 2026

Absolutely no complaints!

This is a really great and a very, very, very solid product.

- Hywel N..

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