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
Stainless steel Pitot tube, 6-inch insertion length, 1/8-inch diameter, male NPT connection

Dwyer

Dwyer 166-6-CF Pitot Tube 6in Stainless Steel

SKU CH-DV69-QQJM6

Measures air velocity in ducts 12 in or larger with a 6 in stainless steel pitot tube and includes direct-reading charts and calculator

  • 6 in insertion depth reaches duct centres
  • 12 in minimum duct diameter fits standard systems
  • Stainless steel tube resists corrosion in airflow
  • Includes calculator and charts for direct velocity reading
  • Complies with CE, ASHRAE and ROHS standards

Pitot Tube for Air Velocity Measurement

The Dwyer 166-6-CF Pitot Tube measures air velocity in ducts and plenums. Its 6-inch insertion length and stainless-steel construction suit HVAC technicians and facility engineers who need reliable airflow data for system balancing or commissioning.

Replaces Worn or Undersized Probes

Upgrade from a damaged pitot tube or one with a shorter insertion length when the duct diameter meets the 12-inch minimum. The Series 160 design includes direct-reading velocity charts and an air velocity calculator so readings are immediate without extra instruments.

Verify Duct Size and Connection Type

Confirm the duct inner diameter is at least 12 inches and that the 1/8-inch male NPT process connection matches your test port. The compression mounting fitting also requires a compatible 1/8-inch female port for secure installation.

Highlights

  • 6 in insertion depth reaches duct centres
  • 12 in minimum duct diameter fits standard systems
  • Stainless steel tube resists corrosion in airflow
  • Includes calculator and charts for direct velocity reading
  • Complies with CE, ASHRAE and ROHS standards

Specifications

BrandDWYER INSTRUMENTS

Questions about this item

What duct diameter does the 6-inch pitot tube require?

The pitot tube needs a minimum duct diameter of 12 inches for proper airflow measurement.

How is the pitot tube mounted and what step is often missed?

It mounts via a 1/8-inch male NPT compression fitting; the step often missed is fully tightening the compression nut to seal the insertion point.

What replacement parts might be needed for the Series 160 pitot tube?

Replacement compression ferrules for the 1/8-inch mounting fitting and a new air velocity calculator slide rule are the typical maintenance items.

Also in this aisle

People compared these

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