Instruction Manual
D104438X012
May 2022
Type 114PL
Type 114PL High-Pressure Reducing and
Low-Flow System
Table of Contents
Introduction .................................................................. 1
Specifications .............................................................. 2
Principle of Operation .................................................. 2
Installation ................................................................... 2
Startup ......................................................................... 4
Maintenance ................................................................ 4
Parts Ordering ............................................................. 4
WARNING
▲
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or fire 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. 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.
Call a gas service person to service the
unit. Only a qualified person must install
or service the regulator.
Figure 1. Type 114PL
Introduction
Scope of the Manual
This manual provides instructions for installation,
startup, adjustment and maintenance for Type 114PL
Pressure Reducing System. For pilots maintenance,
instructions and parts list, see Type BSL85 Instruction
Manual, D103711X012.
Product Description
Type 114PL
Type 114PL High-pressure Reducing and Low-flow
System is a battery of three Type BSL85 Pilots (see
Instruction Manual, D103711X012) where two of
them are pneumatically loaded and the third one
is spring-loaded. It is designed for high-pressure
reduction with low-flow conditions.
Type RPE (Electric Heater)
Type RPE can be used together with the Type 114PL.
Type RPE is used for reheating gas supplying
pressure reducing regulator pilots. Type RPE avoids
the inconveniences caused by freezing which
occur during large pressure drops. (See Instruction
Manual, D103694X012).
Europe, Middle East and Africa Only
Type 114PL
Specifications
The Specifications section lists the specifications for Type 114PL Pressure Reducing System. Factory specification
are stamped on the nameplate fastened on the regulator at the factory.
Body Sizes and End Connection Styles
DN 25 / 1 NPS - CL600 Flanged
(1)
Outlet Pressure Range (P
)
d
1.0 to 18 bar / 14.5 to 261 psig
See Table 1
Maximum Allowable Operating Pressure (P
100 bar / 1450 psig
Maximum Obtainable Operating Pressure (P
(1)
)
s
(1)(2)
)
u
Construction Materials
Pilot Body: Steel
Pilot Manometric Box BMP (spring case): Steel
Pilot Manometric Box BMP (cover): Steel
Flange and spacer: Steel
Option
RPE (Electric Heater)
85 bar / 1233 psig
1. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded.
2. In extreme conditions (isopropanol, methanol)
Table 1. Outlet Pressure Ranges
PNEUMATIC-LOADED
PILOT TYPE
114
SPRING-LOADED
PILOT TYPE
114E 4 0.16 1 to 4.8
071E 4 0.16 4.8 to 18 69.6 to 261
mm In. bar
Principle of Operation
Type 114PL High-pressure Reducing and Low-flow
System uses inlet pressure as the operating medium,
which is reduced through the spring-loaded pilot to
load the pneumatic-loaded pilots’ cases.
When the outlet pressure (Pd) drops, the motorization
pressure (Pm) opens more the nozzles in the
pneumatic-loaded pilots supplying the required flow to
the downstream system.
Any excess motorization pressure on the actuator
diaphragm escapes downstream through the bleed
restriction in the pilot.
When the gas demand in the downstream system has
been satisfied, the outlet pressure (Pd) increases. In
this case, the outlet pressure closes the nozzles in the
pneumatic-loaded pilots until reach the setting value.
NOZZLE Ø OUTLET PRESSURE RANGE (P
service conditions could exceed the
limits given in the characteristics
section and on the appropriate
nameplate or where conditions exceed
any rating of the adjacent piping or
piping connections.
To avoid such injury or damage, provide
pressure-relieving or pressure-limiting
devices to prevent service conditions
from exceeding those limits. Also, be
sure that installation is in compliance
with all applicable code and regulations.
Physical damage to the system can
break the pilot off the main valve,
causing personal injury and property
damage due to bursting of pressurecontaining parts. To avoid such injury
and damage, install the regulator in a
Installation
safe location. Only personnel qualified
through training and experience should
install, operate and maintain a regulator.
WARNING
▲
Personal injury or equipment damage,
Before installation, make sure that there
is no damage to or debris in the system.
due to bursting of pressure-containing
parts may result if this system is
overpressured or is installed where
d
psig
14.5 to 69.6
)
Europe, Middle East and Africa Only
2
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