Pressure Regulators Model 8601 - Brooks Instrument - #1

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Data Sheet DS-PR-8601-eng November, 2008 Pressure Regulators Model 8601 Description Brooks® 8601 Pressure Regulators are high precision supply pressure regulators which are direct-acting, non-relieving units that provide bubble-tight shut-off on helium at 100 psi. Compact and economical, these units are assembled in a “clean room” environment and are tested under simulated operating conditions. Design Features • Compact design • Suitable for line or panel mounting • Pressure gauge connection • Bubble-tight shut-off to 100 psi • Replaceable stainless steel inlet filter element • UL listed (Aluminum body only) as compressed gas regulator for use with the following gases: air, argon, helium, hydrogen, krypton, neon, nitrogen, oxygen or xenon. Specifications Capacity The pressure regulator is ideal for use at flow up to a maximum of 1,000 sccm air. Ratings Maximum Inlet Supply Pressure - 250 psi (1,724 kPa) Maximum Working Temperature - Standard: 140°F (60°C), Optional - 350°F (177°C) Typical Characteristics (Helium 60 psig supply, 50 psig output) Drift - Less than 1% in first fifteen minutes to total of no more than 1.5% long term Supply Pressure Effect - 10 psi increase in supply will not change output more than 0.07 psi. Flow Regulation - From 3 sccm to 70 sccm helium, output pressure will not decrease more than 0.08 psig (0-10, 0-30 psi Regulators), 0.10 psig (0-60 psi Regulators), 0.125 psig (0-100 psi Regulators), 0.15 psig (0-150 psi Regulators), 0.175 psig (0-200 psi Regulators) Ambient Temperature Effect - Standard 60 psi range, 0.020 psi/°F. Base Line Oscillation - .0025 psi Valve Adjustment & Operating Ranges - fifteen turns for 0-10, 0-30, 0-60, 0-100, 0-150 or 0-200 psig output range Total Pressure Drop Minimum - 10 psi; Maximum - 250 psi Materials of Construction BODY - Standard: aluminum; Optional: 316 Stainless Steel BONNET - Aluminum VALVE SEAT - Standard: Brass; Optional: 316 Stainless Steel VALVE STEM - 316 Stainless Steel DIAPHRAGM - Reinforced Buna-N, Viton-A® fluoroelastomers RANGE SPRING - Music wire, zinc plated FILTER - 40 micron, 316L Sintered Stainless Steel with Viton® fluoroelastomers or Buna retainer sleeve Connections Type - Standard: 1/8" NPT; Optional: 1/4" NPT, 1/8" or 1/4" compression fitting, 1/4" ID hose adaptors Dimensions - See Figure 1 Compatible Brooks Equipment Model 1390 Filter and Model 1391 Filter Model 8601 Pressure Regulator