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Hot Oil/Water Flowmeter – HF4 & HF8

Hot Water Oil Flowmeters HF4 HF8

Smartflow® hot oil/water flowmeters are durable, vane-operated devices that provide visual indication of flow rate. The indicator ball is separated from the process by a high temperature gasket and stainless steel plate. A glass window retains the indicator ball. This flowmeter is designed specifically for hot oil or hot water circulating loops in industrial processes.

Features and Benefits

  • Compact size works well in restricted space locations.
  • Rugged construction provides years of dependable service.
  • Optional Temperature Gauge provides added function.
  • 550 degrees Fahrenheit, 288 degrees Celsius Temperature Rating allows installation into high temperature applications.
  • Economical for use in many locations throughout the plant.
  • Line mounted for easy installation without extra brackets or hardware.

Hot Water Oil Flowmeter Diagram

Model Numbers

Stainless steel body with 1/2″ NPT connection, suitable for hot oil or pressurized water applications, 2-6 GPM or 5-22 LPM scale.

Model No. Temp. Gauge Inlet Size Flow Range
HF4-A-60 no 1/2″ NPT 2-6 gpm
HF4B-A-220 no 1/2″ BSPP 5-22 lpm
HF4-B-60 yes 1/2″ NPT 2-6 gpm
HF4B-B-220 yes 1/2″ BSPP 5-22 lpm

L = 3.75″ (95.3mm)
W = 1.5″ (38.1mm)
H = 1.5″ (38.1mm)

Model HF8

Carbon steel body (black oxide finish) with 1″ NPT connection, suitable for hot oil applications, 5-40 gpm or 20-150 lpm scale.

Model No. Temp. Gauge Inlet Size Flow Range
HF8-A-40 no 1″ NPT 4-40 gpm
HF8-A-1500 no 1″ NPT 20-150 lpm
HF8-B-40 yes 1″ NPT 5-40 gpm
HF8-B-1500 yes 1″ NPT 20-150 lpm

L = 4.75″ (120.6mm)
W = 2.25″ (57.2mm)
H = 2.25″ (57.2mm)

Wetted Parts and Materials

Viewing Window – Glass
Vane – Stainless Steel
Spring – Stainless Steel
Pin – Stainless Steel
Gasket – Non-Asbestos Fiber
Magnet – Sintered Alnico 8HE

Specifications

Operating Temperature max – 550°F (288°C)
Operating Pressure max – 150 psi (10.3 bar)
Accuracy – +10%