Flow Control

8744

Brooks Instrument FC8744 Low-Flow Manual Flow Controller

About this part

Brooks Instrument model FC8744 is a manual flow controller for accurately setting and maintaining low gas or liquid flows when downstream pressure varies. An internal diaphragm-actuated valve maintains a fixed differential pressure across the integral manual regulating valve, stabilizing flow without electronic control. Model 8744 can be used by itself or mounted with a compatible variable-area flowmeter

Configurations vary. Verify the exact unit before choosing a replacement.

Specifications Documents (2)Photos (5)Listing history

Brooks Instrument 8744 manual differential-pressure flow controller auction image

Archived part photo · View gallery

Key Facts

ManufacturerBrooks Instrument

Part number8744

Product familyConfiguration-specific

Device typeController

Configuration statusConfiguration varies

Application classIndustrial automation and process equipment

CategoryFlow Control

Specifications

Identification

Series

Brooks FC manual flow controllers

Function

Control condition	Low flows with variable downstream pressure
Operating principle	Diaphragm-actuated control valve maintains constant differential pressure across an integral manual regulating valve

Media

Service

Gas or liquid, subject to materials and configuration

Flow

FC8744 air range	0.1 to 200 scfh / 0.04 to 100 lpm
FC8744 water range	10 to 240 cc/min / 0.2 to 40 gph

Pressure

Family pressure rating

Up to 1000 psig; exact limit depends on construction and temperature

Temperature

Family operating range

Minimum -40 C; maximum depends on body, diaphragm, O-ring and valve configuration

Materials

FC8744 body choices	316 stainless steel, brass or aluminum
Diaphragm choices	Buna-N, PTFE or Viton fluoroelastomer, depending on configuration

Installation

Mounting

Standalone or integrally mounted to a compatible flowmeter

Configuration

Configured-unit rule

Body, diaphragm, O-rings, valve, process connections, pressure limit and temperature limit vary by configured model

FC8744 operating context

The FC8744 compensates for downstream-pressure variation through a mechanical pressure-balancing design.

Best fitLow-flow gas or liquid service with changing downstream pressure

Control methodManual flow adjustment with mechanical differential-pressure regulation

Electrical powerNot required for the controller mechanism

Selection boundaryUse the full configured code or nameplate to match materials, connections and ratings

Documentation Downloads

Local PDF copies

Brooks FC8744, FC8800 and FC8900 Data Sheet Local PDF download

PDF2.1 MB

Brooks FC8744, FC8800 and FC8900 Installation and Operation Manual Local PDF download

PDF3.6 MB

Part Photos

5 images

Historical archive images for identification, labels, connectors, and condition reference, not current inventory.

Historical Listings & Prices

Historical listing data, not a current offer

Archive records6Tracked historical listing records

Historical median price$99.00Based on archived listing records

Recorded price range$25.00 - $750.00Low to high recorded listing price

Local documents2PDF copies available from Sonisys

Recorded price context

The typical recorded price range is $62.00 to $424.50. Based on 6 archived listing records; not a current offer, appraisal, or confirmed sale price.

View archived listing titles

Brooks Model 8744 Flow Controller New In Pkg 200psi 140 deg F Gas Service

Archived listings

Other Part Numbers & Aliases

8744FC8744FC 8744Brooks 8744Brooks FC8744Brooks Instrument FC8744