Type 399A-161-112
April 1999
©Fisher Controls International, Inc., 1999; All Rights Reserved
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For information, contact Fisher Controls:
Marshalltown, Iowa 50158 USA
28320 Gallardon, France
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FISHER-ROSEMOUNT
Managing The Process Better.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied,
regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
Printed in U.S.A.
Errata Sheet
for
Type 399A Pilot-Operated Pressure Reducing Regulator
Form 5321, March 1996
The pilot for the Type 399A regulator has been changed from a Type 161Y and 161YM to a Type 161AY and 161AYM.
The Type 161AY is a direct replacement for the Type 161Y and the Type 161AYM replaces the Type 161YM. The pilot is
used for set pressure ranges of 6-inches w.c. to 7 psig (15 mbar to 0,48 bar). A sliding pusher post has been added to
the construction to enable the pilot to be rated to 150 psig (10,3 bar) on the outlet. This errata sheet provides mainte-
nance, and parts ordering information for the new pilot. Please refer to the Type 399A-161-112 Instruction Manual for
information on installation and principle of operation. Each bullet on this errata sheet refers to a section of the
Type 399A-161-112 instruction manual (form 5321) that needs to be replaced with the information on this sheet.
• Replace the Scope of Manual on page 2 with the following:
This instruction manual provides installation, startup, adjustment, shutdown, maintenance, and parts ordering
infromation for the Type 399A Easy Joe® pressure-reducing regulator complete with Type 112 restrictor and Type 161,
161M, 161AY, 161AYM, 161H, 161EB, 161EBM, 161EBH, or 161EBHM pilot. Any accessories used with this regulator
are covered in other manuals.
• Replace the Type 161Y and 161YM paragraphs under the Product Description section on page 2 with the following:
Type 161AY—Downstream pressure range from 6-inches w.c. to 7 psig (15 mbar to 0,48 bar). Pilot bleed exhausts
downstream through the sense (control) line. A sliding pusher post is standard to prevent internal damage during startup
or when overpressure conditions occur.
Type 161AYM—Downstream pressure range from 6-inches w.c. to 7 psig (15 mbar to 0,48 bar). A static sensing
(control) line is isolated from pilot bleed (exhaust). The Type 161AYM is used in working monitor and other applications
that require a sensing line isolated from pilot bleed (exhaust). A sliding pusher post is standard to prevent internal
damage during startup or when overpressure conditions occur.
• Replace the first paragraph of the Specifications section on page 3 with the following:
Specifications for the Type 399A regulator are found in tables 1 through 6. The control spring range for an individual pilot
as it comes from the factory is marked on the spring case of Type 161, 161M, 161H, 161HM, 161EB, 161EBM,
161EBH, and 161EBHM pilots and on the closing cap of Type 161AY and 161AYM pilots. Other information for an
individual main valve appears on the nameplate.
• Replace the Type 161Y or 161YM pilot reference in "Table 1. Specifications" on page 2 with Type 161AY or 161AYM.
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