T205B www.emersonprocess.com/regulators • Patent-pending design for superior flow and pressure management • Specifically designed for pressure-sensitive tank blanketing applications • Self-operated for quick response to tank pressure changes Best in Class Flow Capacity Inlet Pressure, psig Flow Capacity (SCFH) Introduction The Type T205B is a direct-operated, internally balanced regulator. This balanced design allows for greater fluctuations in inlet pressure, as well as much greater flow capacity. Higher flow has become increasingly important as updated tank blanketing sizing guidelines* often result in greater flow requirements. * Such as API 6th Edition 2009 and ISO 28300 2008 Balanced Tank Blanketing Regulator Application The Type T205B regulator has been specifically designed for tank blanketing applications. In tank blanketing, a gas such as nitrogen in brought into the tank in order to inert the vapor space above the liquid. This application is characterized by low pressure. The TypeT205B is able to maintain very low pressure setpoints and respond to very small changes in pressure. The TypeT205B features a patent-pending balanced trim design. This unique design allows the regulator to achieve much higher flow capacities than traditional designs. It is less susceptible to pressure fluctuations that can originate from the blanketing gas supply - thus delivering more accurate performance. Patent-Pending Balanced Trim Design T205B Other Regulators 12000 10000 8000 6000 4000 2000 0 40 20 10 5 2 60 80 100 125 150 * Based on published data of leading competitors
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T205B
www.emersonprocess.com/regulators
• Patent-pending design for superior fl ow and pressure management• Specifi cally designed for pressure-sensitive tank blanketing applications• Self-operated for quick response to tank pressure changes
Best in Class Flow Capacity
Inlet Pressure, psig
Flow
Cap
acit
y (S
CFH
)
IntroductionThe Type T205B is a direct-operated, internally balanced regulator. This balanced design allows for greater fl uctuations in inlet pressure, as well as much greater fl ow capacity. Higher fl ow has become increasingly important as updated tank blanketing sizing guidelines* often result in greater fl ow requirements.* Such as API 6th Edition 2009 and ISO 28300 2008
Balanced Tank Blanketing Regulator
ApplicationThe Type T205B regulator has been specifi cally designed for tank blanketing applications. In tank blanketing, a gas such as nitrogen in brought into the tank in order to inert the vapor space above the liquid. This application is characterized by low pressure. The TypeT205B is able to maintain very low pressure setpoints and respond to very small changes in pressure.
The TypeT205B features a patent-pending balanced trim design. This unique design allows the regulator to achieve much higher fl ow capacities than traditional designs. It is less susceptible to pressure fl uctuations that can originate from the blanketing gas supply - thus delivering more accurate performance.
Patent-Pending Balanced Trim Design
T205B Other Regulators
12000
10000
8000
6000
4000
2000
0
40201052 60 80100
125150
* Based on published data of leading competitors
T205B
D352027X012 © 2013 Emerson Process Management Regulator Technologies, Inc. All rights reserved. Printed in the U.S.A. 04/13. Fisher, Emerson Process Management, and the Emerson Process Management design are marks of one of the Emerson Process Management group of companies. All other marks are the property of their respective owners.
USA - HeadquartersMcKinney, Texas 75069-1872 USA Tel: 1-800-558-5853Outside U.S. 1-972-548-3574
Industrial Regulators
Emerson Process Management Regulator Technologies, Inc.
For further information, visit www.fisherregulators.com
Our Global Product Brand:
Asia-PacificShanghai, China 201206Tel: +86 21 2892 9000
Middle East and AfricaDubai, United Arab EmiratesTel: +971 4 811 8100
EuropeBologna, Italy 40013Tel: +39 051 4190611
Distinctive diamond shape cast into spring case uniquely identifi es the product as part of theFisher® brand and assures you of the highest-quality engineering, durability, performance,and support.
• Sizes: 3/4” and 1”• Body and Casing Materials: Cast
Iron, Steel, Stainless steel (316L)• End Connections: NPT, CL150 RF,
CL300 RF, PN 16/25/40• Maximum Inlet Pressure:
200 psig• Control Pressure Range:
1 inch w.c. to 7 psig• Trim Materials: FEP, NBR, FKM,
FFKM, EPDM
Balanced Tank Blanketing Regulator
Durable casing and body, designed for many years of service. Available in 316L stainless steel for greater chemical resistance.
New1/2-inch
Airset
Large diaphragm size to sense very small pressure changes
7 different springs available to customize pressure control setting
External sensing for most accurate pressure control
Lever design provides increased lockup force without extra cost and size
By introducing the least amount of gas required into a tank, the volume of gas that escapes through poorly sealed vents and other paths is reduced. In this way, signifi cant blanketing gas costs can be saved. In order to accomplish this, a regulator that can sense very low pressures, such as the Type T205B, is required.
Quality AssuranceA variety of trim materials are available, designed to withstand the toughest tank environments.
Nitrogen Cost vs. Leak Diameter
Nit
roge
n C
ost P
er T
ank
Per Y
ear Blanketing Setpoint
7-inches w.c.
2-inches w.c.
1-inches w.c.
3/4-inches w.c.
1/2-inches w.c.
17.5 mbar
5 mbar
2.5 mbar
1.9 mbar
1.2 mbar
$40,000
$35,000
$30,000
$25,000
$20,000
$15,000
$10,000
$5,000
$01/4-inch 1/2-inch 3/4-inch 1-inch
6.4 mm 12.7 mm 19.1 mm 25.4 mm
Nitrogen Escape Path Ð Effective Leak Diameter
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