D103752X014
Installation Guide
English – November 2013
T208 Series
www.fisherregulators.com
Introduction
This installation guide provides instructions for
installation, startup, and adjustment. To receive
a copy of the instruction manual, contact your
local Sales Office or view a copy at
www.fisherregulators.com. For further
information refer to: T208 Series Tank Blanketing
Vapor Recovery Regulators Instruction
Manual, D103752X012.
P.E.D. Categories
This product may be used as a safety accessory
with pressure equipment in the following Pressure
Equipment Directive 97/23/EC categories. It may
also be used outside of the Pressure Equipment
Directive using sound engineering practice (SEP)
per table below
.
PRODUCT SIZE
CATEGORY
FLUID TYPE
DN 20 and 25 / 3/4 and 1 inch
SEP
1
Specifications
Available Configurations
Type T208:
Tank blanketing vapor recovery
regulator with control pressure range of 5 mbar
to 0.48 bar / 2 inches w.c. to 7 psig in six
different spring ranges and has internal pressure
registration requiring no control line.
Type T208M:
Similar to Type T208 but has a
blocked throat and a control line connection for
external pressure registration.
Body Sizes and End Connection Styles
See Table 1
Maximum Allowable Inlet (Casing) Pressure
(1)
See Table 1
Maximum Outlet Pressure
(1)
2.4 bar / 35 psig
Maximum Emergency Inlet Pressure to Avoid
Internal Parts Damage
(1)
With Nitrile (NBR) or Fluorocarbon (FKM)
diaphragm:
2.4 bar / 35 psig
With Fluorinated Ethylene Propylene (FEP)
diaphragm:
1.4 bar / 20 psig
Control Pressure Ranges
(1)
See Table 2
Shutoff Classification per ANSI/FCI 70-3-2004
Class VI (Soft Seat)
Pressure Registration
Type T208:
Internal
Type T208M:
External
1. The pressure/temperature limits in this Installation Guide and any applicable standard or code limitation should not be exceeded.
2. See Table 3 for operating temperature ranges for available trim combinations.
Material Temperature Capabilities
(1)(2)
Nitrile (NBR):
-29 to 82°C / -20 to 180°F
Fluorinated Ethylene Propylene (FEP):
-29 to 82°C / -20 to 180°F
Fluorocarbon (FKM):
4 to 149°C /
40 to 300°F
Ethylene Propylene Diene (EPDM):
-29 to 107°C / -20 to 225°F
Perfluoroelastomer (FFKM):
-18 to 149°C / 0 to 300°F
Installation
!
WARNING
Only qualified personnel shall install
or service a regulator. Regulators
should be installed, operated,
and maintained in accordance
with international and applicable
codes and regulations, and
Emerson Process Management
Regulator Technologies, Inc.
(Regulator Technologies) instructions.
If the regulator vents fluid or a
leak develops in the system, it
indicates that service is required.
Failure to take the regulator out of
service immediately may create a
hazardous condition.
Personal injury, equipment damage,
or leakage due to escaping fluid
or bursting of pressure containing
parts may result if this regulator is
overpressured or is installed where
service conditions could exceed the
limits given in the Specifications
section, or where conditions exceed
any ratings of the adjacent piping or
piping connections.
To avoid such injury or damage,
provide pressure-relieving or
pressure-limiting devices (as required
by the appropriate code, regulation,
or standard) to prevent service
conditions from exceeding limits.
Additionally, physical damage to the
regulator could result in personal
injury and property damage due to
escaping fluid. To avoid such injury
and damage, install the regulator in a
safe location.
