BROOKS Instrument Pressure Regulators Model 8601
Pressure Regulators
Model 8601
Data Sheet
DS-PR-8601-eng
March, 2008
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
Table 1 8600 Series ELF Pressure Regulators
ORDERING INFORMATION
To order, please specify
1. Model number
2. Materials of construction
3. Output range
4. Connection type & size
5. Options, if desired
TRADEMARKS
Brooks………………………………………………….. Brooks Instrument, LLC
Viton-A ……………………………………. DuPont Performance Elastomers
BASE MODEL NUMBER PRESSURE REGULATOR
8601D SIDE CONNECTIONS
BODY MATERIAL – WETTED
1 ALUMINUM*
2 316 STAINLESS STEEL*
DIAPHRAGM AND VALVE SEAT MATERIALS
A BUNA-N AND BRASS/BUNA-N (ALUMINUM ONLY)*
B VITON AND BRASS/VITON (ALUMINUM ONLY)
C BUNA-N AND STAINLESS STEEL/BUNA-N*
D VITON AND STAINLESS STEEL/VITON
RANGE
1 0-10 PSI*
2 0-30 PSI*
3 0-60 PSI*
4 0-100 PSI*
5 0-150 PSI*
6 0-200 PSI*
CONNECTION SIZE AND TYPE
A 1/8″ NPT INTEGRAL*
B 1/4″ NPT
C 1/8″ COMPRESSION TUBE
D 1/4″ COMPRESSION TUBE
E 1/4″ I.D. HOSE
ACCESSORIES (UP TO 3 DIGIT CODE)
A NONE*
B PANEL MOUNTING*
C DEGREASE FOR OXYGEN SERVICE*
D NO VALVE KNOB
E NO BROOKS LOGO
F GAGE PORT PLUGGED
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