We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Aluminium mechanical flowmeter, 3/4 inch FNPT, 4 to 20 gpm range

Dayton

Dayton 40M286 Mechanical Flowmeter 3/4 In 4-20 gpm

SKU CH-SMGE-44AJ0

Mechanical flowmeter measures diesel, gasoline or oil at 4 to 20 gpm with ±1 % accuracy

  • Mechanical display gives instant reading without power
  • ±1 % accuracy ensures reliable fuel or oil measurement
  • 4 to 20 gpm range covers common transfer jobs
  • 3/4 in FNPT threads fit standard hose and pipe
  • Aluminium body with Viton seals resists diesel, gasoline and oils

Mechanical Flowmeter for Diesel and Gasoline

The Dayton 40M286 is a mechanical flowmeter designed to measure diesel, gasoline and oil flow rates from 4 to 20 gpm. It suits technicians and plant operators who need a direct-reading meter for routine fluid transfer tasks.

Aluminium Housing with FNPT Connections

The meter body is aluminium with Viton seals and an FNPT thread that accepts standard 3/4 inch pipe fittings. This construction handles media temperatures from -10 to 150 degrees F and viscosities up to 9,088 SUS, so the same unit can stay in service across seasonal temperature swings and a range of petroleum products.

Prop 65 Notice and Included Documentation

The product carries a California Proposition 65 warning for chemicals linked to cancer and reproductive harm. The packaging includes the manufacturer’s installation and safety literature so the installer can verify compatibility and follow the correct handling procedures before putting the meter into service.

Highlights

  • Mechanical display gives instant reading without power
  • ±1 % accuracy ensures reliable fuel or oil measurement
  • 4 to 20 gpm range covers common transfer jobs
  • 3/4 in FNPT threads fit standard hose and pipe
  • Aluminium body with Viton seals resists diesel, gasoline and oils

Specifications

BrandDAYTON

Questions about this item

What does the mechanical display cap at for accuracy?

The mechanical display reads flow within ±1 % across the 4 to 20 gpm range.

What thread type and size are needed to mount the 3/4 in flowmeter?

It requires a 3/4 in FNPT female thread on each side of the line.

How is the flowmeter installed and what step is often missed?

Install horizontally with flow matching the arrow; the step often missed is confirming Viton seals are seated before pressurising.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.