DATA SHEET Flow Controllers Model FC 8744, Series FC 8800 & FC 8900 Flow Controllers for Gas & Liquid Service Brooks® flow controllers are designed to maintain a constant differential pressure across an integral manual flow regulating valve. The incoming fluid pressure on one side of the diaphragm, and outlet pressure plus spring action on the other side, position an integral diaphragm-actuated control valve. Variations in the supply or discharge pressure disturb the balance of forces on the diaphragm, causing the internal control valve to open or close, thus maintaining a fixed differential pressure across the integral, manual flow regulating valve resulting in constant flow. (Refer to Figure 1) Model FC 8744 controllers are used for accurately adjusting and maintaining small gas and liquid flows with variable downstream pressures. Series FC 8800 controllers are used for accurately adjusting and maintaining liquid and gas flows with variable upstream pressures. Series FC 8900 controllers are used for accurately adjusting and maintaining liquid and gas flows with variable downstream pressures. Flow controllers for high pressure or low flow rates to handle demanding applications Integral mounting to flowmeter to save space and improve installation High-resolution valves provide precise flow control for many applications Many different materials of construction that provides process immunity and flexibility Product Specifications Flow Ranges (Refer to Table 1) Pressure and Temperature Ratings Minimum Operating Temperature: Maximum Operating Temprature: Water - up to 480 GPH / 1820 l/h Air - up to 2130 SCFH / 56000 ln/h Up to 1000 psig / 69 Bar. Refer to Table 2a or 2b -40°F/C Refer to Tables 2a or 2b. Pressure Drop Pressure Equipment Directive (97/23/EC) Refer to Table 2a. Equipment falls under Sound Engineering Practice (SEP) according to the directive. View Flow Controllers Product Page BrooksInstrument

Product Specifications MATERIALS OF CONSTRUCTION   Controller Body   Controller Diaphragm 316 Stainless Steel, Brass or Aluminum (FC 8744 only). Refer to Table 3 Buna-N, Teflon® or Viton® fluoroelastomers. Refer to Table 3.   Needle Valve 316 Stainless Steel Cartridge Valve. Refer to Figure 3. Refer to data sheet DS-VA-CART-eng. 316 Stainless Steel NRSTM Valve. Refer to Figure 2. Refer to data sheet DS-VA-8503-eng. 316 Stainless Steel high flow needle valve type. Refer to Table 3.   O-rings Kalrez/Teflon (SS body only). Refer to Table 3. Viton® fluoroelastomers, Buna-N, Kalrez® (SS body only),...

Product Specifications - Flow Ranges, Pressure/Temperature Ratings & Pressure Drop Table 1 FC Series Flow Ranges Table 2a FC Series Pressure / Temperature Ratings and Pressure Drop Table 2b FC Series Pressure / Temperature Ratings CRN

Product Specifications (continued) Table 3 FC Series Materials of Construction / Connection / Valve Option Table 4 Sizing Chart

Product Dimensions Model FC 8744 Figure 4 Flow Controller Dimensional Drawings 5

Model Code Code Description Code Option Option Description I. Base Model Number Low flow gases and liquids with variable downstream pressure Gases and liquids with variable upstream pressure Gases and liquids with variable downstream pressure General use, standard operating pressure, integral connection to Models 1350 & 1355 General use, standard operating pressure, integral NPT connections General use, high operating pressure, integral NPT connections High flow rates, standard operating pressure, integral NPT connections High flow rates, high operating pressure, integral NPT connections Very...

Model Code Code Description Code Option Option Description XI. Material Certifications None Certification to NACE MR-010-75 Material Certification EN 10204-2.2 Material Certification EN 10204-3.1 Certification to NACE & Material Certification EN 10204-2.2 Certification to NACE & Material Certification EN 10204-3.1 XII. Additional Cleaning * CRN NOT AVAILABLE Standard Cleaning Process Degrease and Clean for Oxygen Service Sample Standard Model Code (Fields complete)

Service and Support Brooks is committed to assuring all of our customers receive the ideal flow solution for their application, along with outstanding service and support to back it up. We operate first class repair facilities located around the world to provide rapid response and support. Each location utilizes primary standard calibration equipment to ensure accuracy and reliability for repairs and recalibration and is certified by our local Weights and Measures Authorities and traceable to the relevant International Standards. Visit www.BrooksInstrument.com to locate the service location nearest...