Series HF In-Line Flow Monitors

For Air, Water or Caustic Fluids, ±2% FS, Unrestricted Mounting, High Temperature and Pressure Options

The Series HF In-Line Flow Monitors are ruggedly constructed and ideal for direct measurement for a range of compatible gases, oil or water based liquids. This Series is designed based on a floating orifice disk and variable area flow measurement. Flowing media forces linear motion of the orifice disk and a ring shaped magnet which ride on a tapered center shaft. The transfer magnet drives a clearly visible magnet follower located outside the flow tube, and a ring on the magnet follower indicates flow rate on the direct reading scale.

Note: If you require a calibration certificate with your flowmeter, please contact customer service to place your order.

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Product Applications

Setting pressure relief valves
Fluid handling equipment
Detecting low-flow rates for lubricating liquids
Pulp and paper
Industrial maintenance
Fluid power
Heating loop flow

Starting at $423.10

Ordering

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304 SS Body for High-pressure Fluids

Aluminum Body for Oil Based Fluids

Brass Body High Temperature 400° F for Water Based Fluids

Brass Body for Water Based Fluids (Non-steam)

Grouped product items
Model	Description	Availability*	Price
HFB-2-05	In-line flow monitor, 1/2" female NPT, 0.5-5 GPM (1-19 LPM) water.	1-3 days*	$543.85
HFB-3-15	In-line flow monitor, 3/4" female NPT, 2-15 GPM (7.5-55 LPM) water.	1-3 days*	$851.40
HFB-3-20	In-line flow monitor, 3/4" female NPT, 2-20 GPM (7.5-75 LPM) water.	1-3 days*	$851.40
HFB-4-35	In-line flow monitor, 1" female NPT, 5-35 GPM (19-130 LPM) water.	1-3 days*	$851.40
HFB-5-100	In-line flow monitor, 1-1/2" female NPT, 10-100 GPM (38-379 LPM) water.	2-3 Weeks*	$3,221.95
HFB-5-50	In-line flow monitor, 1-1/2" female NPT, 5-50 GPM (19-189 LPM) water.	1-3 days*	$2,533.55
HFB-6-150	In-line flow monitor, 2" female NPT, 20-150 GPM (76-568 LPM) water.	2-3 Weeks*	$3,037.40
HFB-6-75	In-line flow monitor, 2" female NPT, 8-75 GPM (31-284 LPM) water.	2-3 Weeks*	$3,037.40
HFH-2-05	In-line flow monitor, 1/2" female NPT, 0.5-5 GPM (1-19 LPM) water.	1-3 days*	$835.25
HFH-2-10	In-line flow monitor, 1/2" female NPT, 1-10 GPM (3.8-38 LPM) water.	1-3 days*	$835.25
HFH-4-35	In-line flow monitor, 1" female NPT, 5-35 GPM (19-130 LPM) water.	2-3 Weeks*	$788.25
HFL-2-05	In-line flow monitor, 1/2" female NPT, 0.5-5 GPM (1-19 LPM) oil.	2-3 Weeks*	$423.10
HFL-4-25	In-line flow monitor, 1" female NPT, 2-25 GPM (7.5-95 LPM) oil.	2-3 Weeks*	$630.55
HFS-2-02	In-line flow monitor, 1/2" female NPT, 0.2-2 GPM (.75-7.5 LPM) water.	1-3 days*	$1,231.75
HFS-2-10	In-line flow monitor, 1/2" female NPT, 0.5-10 GPM (1.9-38 LPM) water.	1-3 days*	$1,209.50

Specifications

Service:: Compatible gases or liquids.
Wetted Materials:: HFA: Aluminum casing, Buna-N seals, PTFE coated Alnico magnet, SS disk; HFB: Brass casing, Buna-N seals, PTFE coated Alnico magnet, SS disk; HFS: 303 SS casing, FKM seals with PTFE backup, PTFE coated Alnico magnet, SS disk.
Maximum Viscosity:: 500 SSU.
Temperature Limits:: 240°F (116°C).
Pressure Limits:: HFA, HFB, HFL and HFH models: 600 psig (41 bar) for air and gas, 3500 psig (241 bar) for liquids; HFS model: 1000 psig (70 bar) for air and gas, 6000 psig (413 bar) for liquids.
Accuracy:: ±2% FS.
Repeatability:: ±1% of FS.
Shipping Weight:: 1/4" to 1/2" female NPT models; 2 lb (0.9 kg); 3/4" to 1" female NPT models: 3.5 lb (1.59 kg); 1-1/2" female NPT models: 11 lb (5 kg); 2" female NPT models: 13.5 lb (6.12 kg).

Features

This unique design allows accurate performance with fluid viscosities up to 500 SSU
All internal wetted parts are contained inside a sealed metal tubular casing assuring a virtually maintenance-free unit
Increased application versatility with no inlet or outlet straight plumbing requirement and can be mounted horizontally, vertically, or inverted
Rugged construction allows for high pressure and temperature rating for long operation life

Support Library

Product Literature

Manuals

Instruction Manual

Catalog Pages

Series HF Catalog Page

Drawings

Model Chart

EXAMPLE	HF	A	1	001	Series HFA-1-001 In-Line Flow Monitor, aluminum body, 1/4" female NPT dry seal, range 1.5-12 SCFM air.
SERIES	HF				In-Line Flow Monitor
BODY MATERIAL		A B H L S			Aluminum Brass Brass (High temperature 400°F) Aluminum (Oil based fluids) 304 Stainless Steel
CONNECTION			1 8 2 3 4 9 5		1/4" Female NPT Dry Seal 3/8" Female NPT Dry Seal 1/2" Female NPT Dry Seal 3/4" Female NPT Dry Seal 1" Female NPT Dry Seal 1-1/4" Female NPT Dry Seal 1-1/2" Female NPT Dry Seal
RANGE				001 002 003 004 005 006 007 008	1.5-12 SCFM Air 4-23 SCFM Air 5-50 SCFM Air 10-100 SCFM Air 5-150 SCFM Air 30-330 SCFM Air 40-500 SCFM Air 150-900 SCFM Air

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Accessories

Model	Description	Availability*	Price