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.fisher.com. For further information refer to: T205 Series
Tank Blanketing Regulators Instruction Manual, D103748X012.
PED Categories
This product may be used as a safety accessory with
pressure equipment in the following Pressure Equipment
Directive categories. It may also be used outside of the
Pressure Equipment Directive using sound engineering
practice (SEP) per table below. For information on the current
PRODUCT SIZE
CATEGORIES
FLUID TYPE
DN 20 and 25 / NPS 3/4 and 1
SEP
1
Specifications
Product Configurations
Type T205:
Tank blanketing regulator with control
pressure range of 2.5 mbar to 0.48 bar / 1 in. w.c. to 7 psig
in seven different spring ranges and has internal pressure
registration requiring no downstream control line.
Type T205M:
Similar to Type T205 but has a blocked
throat and a downstream control line connection for
external pressure registration.
Type T205H:
Similar to Type T205, except outlet (casing)
pressure rating equals the inlet rating (both 10.3 bar /
150 psig) and low temperature to -29°C / -20°F.
Type T205HM:
Similar to Type T205M, except outlet
(casing) pressure rating equals the inlet rating (both
10.3 bar / 150 psig) and low temperature to -29°C / -20°F.
Body Sizes and End Connection Styles
See Table 1
Maximum Allowable and Operating Inlet Pressure
(1)
See Tables 1 and 4
Maximum Outlet (Casing) Pressure
(1)
Types T205 and T205M
Gray cast iron:
2.4 bar / 35 psig
WCC Carbon steel or
CF8M/CF3M Stainless steel:
5.2 bar / 75 psig
Types T205H and T205HM
WCC Carbon steel or
CF8M/CF3M Stainless steel:
10.3 bar / 150 psig
Outlet (Control) Pressure Ranges
(1)
See Table 3
Shutoff Classification per ANSI/FCI 70-3-2004
Class VI (Soft Seat)
Pressure Registration
Types T205 and T205H:
Internal
Types T205M and T205HM:
External
1. The pressure/temperature limits in this Installation Guide and any applicable standard or code limitation should not be exceeded.
2. See Table 2 for operating temperature ranges for available trim combinations.
3. Not available for Types T205H and T205HM.
Material Temperature Capabilities
(1)(2)
Elastomer Parts
Nitrile (NBR):
Types T205 and T205M: -40 to 82°C / -40 to 180°F
Types T205H and T205HM: -29 to 82°C / -20 to 180°F
Fluorinated Ethylene Propylene (FEP)
(3)
:
-29 to 82°C /
-20 to 180°F
Fluorocarbon (FKM)
(3)
:
4 to 149°C / 40 to 300°F
Ethylene Propylene Diene (EPDM)
(3)
:
-29 to 107°C /
-20 to 225°F
Perfluoroelastomer (FFKM)
(3)
:
-18 to 149°C / 0 to 300°F
Body Materials
Gray Cast Iron
(3)
:
-29 to 149°C / -20 to 300°F
WCC Carbon Steel:
-29 to 149°C / -20 to 300°F
CF8M/CF3M Stainless Steel:
-40 to 149°C /
-40 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. 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.
Clean out all pipelines before installation of the regulator
and check to be sure the regulator has not been damaged
or has collected foreign material during shipping. For NPT
bodies, apply pipe compound to the external pipe threads.
T205 Series
Installation Guide
D103748X014
English – June 2018
