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Instruction Manual
D103232X012
August 2018
161 Series Pilots for Pilot-Operated Pressure
Reducing Regulators
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
fire and/or chemical contamination
causing property damage and personal
injury or death.
Fisher™ regulators must be installed,
operated and maintained in accordance
with federal, state and local codes, rules
and regulations and Emerson Process
Management Regulator Technologies,
Inc. (Emerson) instructions.
If the regulator vents gas or a leak
develops in the system, service to
the unit may be required. Failure
to correct trouble could result in a
hazardous condition.
Installation, operation and maintenance
procedures performed by unqualified
personnel may result in improper
adjustment and unsafe operation. Either
condition may result in equipment
damage or personal injury. Only a
qualified person shall install or service
the 161 Series regulator.
Introduction
Scope of the Manual
This manual provides installation, startup,
maintenance and parts ordering information for the
161 Series Pilots used together with pilot-operated
pressure reducing regulators in low and high-pressure
applications. For information on mounting on
WARNING
W7430
W6505
Figure 1. 161 Series Pilot
pilot-operated regulators, monitoring systems and
installations, refer to full product literature:
Type EZR: D102600X012
Type EZL: D103091X012
161 Series
TYPE 161AY
TYPE 161EB
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Table of Contents
Related Manuals for Emerson Fisher 161 Series
Summary of Contents for Emerson Fisher 161 Series
- Page 1 W7430 operated and maintained in accordance TYPE 161AY with federal, state and local codes, rules and regulations and Emerson Process Management Regulator Technologies, Inc. (Emerson) instructions. If the regulator vents gas or a leak develops in the system, service to the unit may be required.
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Page 2: Specifications
161 Series Specifications The Specifications section lists pressure limitations and other specifications for all models of 161 Series pilots. Please note that the pilot control spring range is marked on the spring case of 161 and 161EB Series pilots and on the nameplate of 161AY Series pilots. -
Page 3: Product Description
161 Series Table 3. Pilot Flow Coefficients 161AY SERIES 161EB SERIES Orifice Size Orifice Size 3/32 in. / 2.4 mm 0.20 1/8 in. / 1/8 in. / 3.2 mm 12.3 0.35 0.28 30.4 3.18 mm 1/4 in. / 6.4 mm 1.43 Principle of Operation Product Description... -
Page 4: Pilot Adjustment
161 Series personal injury and property damage supply line and provide vent valves to properly due to bursting of pressure-containing isolate and relieve the pressure from the regulator. parts. To avoid such injury and damage, 4. Attach a 1/2 in. / 13 mm piping or tubing install the regulator in a safe location. -
Page 5: Maintenance
Due to the (key 3) to let the plug spring (key 6) and valve plug care Emerson takes in meeting all manufacturing (key 4) drop freely from the body. requirements (heat treating, dimensional tolerances, 2. - Page 6 161 Series 161AY Series Pilots (Figure 7) (key 8) and the control spring (key 9). If used, remove the diaphragm limiter (key 10) and inspect Body Area the diaphragm limiter O-ring (key 23). Replace if necessary. Use this procedure to gain access to the disk assembly, 3.
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Page 7: Parts Ordering
161 Series 2. Change the control spring (key 6) to match the BODY SEAL O-RING (KEY 11) desired spring range. BACKUP RING (KEY 50) 3. Replace the adjusting screw (key 35). BODY (KEY 1) 4. Install the replacement closing cap gasket (key 25) if necessary and reinstall the closing cap (key 22). -
Page 8: Parts List
161 Series Parts List Description Part Number Machine Screw, (6 required) (continued) 161 and 161EB Series Pilots Type 161, Aluminum spring case 10B6189X022 Types 161EB and 161EBM, Stainless steel 1V4360T0012 (Figures 4 through 6) Types 161EBH and 161EBHM, Plated steel T12980T0012 Pipe Plug Description... - Page 9 161 Series Table 4. Types 161 and 161M Pilot Part Numbers (keys 7, 8, 9, 10 and 11) OUTLET (CONTROL) PRESSURE RANGE AND SPRING COLOR CODE PART NAME 5 to 15 psig / 10 to 125 psig / 120 to 300 psig / 0.34 to 1.03 bar, Yellow 0.69 to 8.62 bar, Red 8.27 to 20.7 bar, Green...
- Page 10 161 Series TYPE 161 TYPE 161M 32B0707 32B0708_D APPLY LUBRICANT APPLY LUBRICANT PARTS NOT SHOWN: KEY 25 PARTS NOT SHOWN: KEYS 14, 28 AND 34 Figure 5. Type 161M Monitor Pilot Assembly Figure 4. Type 161 Monitor Pilot Assembly 37B2946_B TYPE 161EBM TYPE 161EB 37B1208...
- Page 11 161 Series 47B8950_B TYPE 161AY TYPE 161AYM OUTER COMPONENTS 47B8951_B APPLY LUBRICANT PARTS NOT SHOWN: KEY 23 47B3689B TYPE 161AYW Figure 7. 161AY Series Monitor Pilot Assembly...
- Page 12 Technologies, Inc. All rights reserved. 08/18. Emerson Automation Solutions The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher™ is a mark owned by Fisher Controls International LLC, a...