Emerson Fisher 262K User manual

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Fisher™262K Filter
Introduction
Scope of Manual
This manual provides instructions for installation, maintenance and parts information for Fisher 262K filters.
Do not install, operate, or maintain a Fisher 262K filter without being fully trained and qualified in valve, actuator, and
accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to
carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If you
have any questions about these instructions, contact your Emerson sales office before proceeding.
Product Description
The 262K filter is designed to remove dirt, scale, and other solid substances from the air supply to actuators and
instruments.
The 262K filter is available with a cast iron (Style B) or stainless steel body (Style SSB) with NPT screwed connections.
See table 1 for temperature capabilities.
The filter has a resin‐impregnated cellulose filter element capable of capturing particles as small as 40 microns.
Figure 1. Typical Fisher 262K Filter
W7910
Figure 2. Construction Details
W0225‐1
FILTER
ELEMENT
PIPE PLUG
Instruction Manual
D100279X012
262K Filter
September 2019

Instruction Manual
D100279X012
262K Filter
September 2019
2
Table 1. Specifications
Body Size
NPS 3/4
End Connection Styles
3/4 NPT screwed
Flow Coefficients
Cv:3.96
Maximum Inlet and Outlet Pressure
Capabilities(1,2)
Cast Iron: 28 bar at 65_C (400 psig at 150_F)
Stainless Steel: 41 bar at 65_C (600 psig at 150_F)
Temperature Capabilities(1)
Cast Iron: -28 to 208_C (-20 to 406_F)
Stainless Steel: -54 to 208_C (-65 to 406_F)
Clean Out Connection
Screwed
Hazardous Area Classification
Complies with the requirements of ATEX Group II
Category 2 Gas and Dust
Ex h IIC Tx Gb
Ex h IIIC Tx Db
Maximum surface temperature depends on operating
conditions
Gas: T6...T2
Dust: T85...T208
1. The pressure/temperature limits in this instruction manual and any applicable standard or code should not be exceeded.
2. A pressure exceeding this value can cause failure of, or leakage from, pressure‐containing components.
Specifications
Specifications for the 262K filter are in table 1.
WARNING
Installation, operation, and maintenance procedures performed by unqualified personnel may result in unsafe operation.
This condition may result in personal injury or equipment damage. Use qualified personnel when installing, operating, and
maintaining this filter.
If a leak develops in the system, the escaping gas may accumulate and become a fire or explosion hazard. Immediately call
qualified service personnel in case of trouble.
Installation
WARNING
Personal injury, equipment damage, or leakage due to escaping gas or bursting of pressure‐containing parts may result if
the filter is installed where its capabilities can be exceeded or where conditions exceed any ratings of the adjacent piping or
piping connections. To avoid this, install a filter where:
D Service conditions are within unit capabilities.
D Service conditions are within applicable codes, regulations, or standards.
D Additionally, physical damage to the filter could result in breakage, causing personal injury and property damage due to
escaping gas. To avoid such injury or damage, install the unit in a safe location.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.

Instruction Manual
D100279X012
262K Filter
September 2019
3
D If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.
Using good piping practices, install the filter in the line with the flow in the direction of the arrow cast on the body. As
shown in figure 2, when the 262K filter is mounted in a horizontal line, the filter element must be pointed down. When
mounted in a vertical line, the filter element must also point down, with the flow passing from top to bottom.
Figure 3. Fisher 262K Filter
19B0172-A
Maintenance
Filter parts are subject to normal wear and must be inspected periodically and replaced as necessary. The frequency of
inspection and replacement depends upon the severity of service conditions and upon applicable codes and
government regulations.
WARNING
Avoid personal injury or damage to property from sudden release of pressure or uncontrolled gas or other process fluid.
Before starting disassembly, carefully release all pressures. Use a gauge to monitor pressure while releasing it.
Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.

Instruction Manual
D100279X012
262K Filter
September 2019
4
Parts Ordering
When corresponding with your Emerson sales office about this filter, always reference the filter style (Cast iron, Style B;
Stainless steel, Style SSB).
When ordering the repair kit, specify the complete 11‐character part number from the following parts list.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson should not, under any
circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the performance
of the valve, and could cause personal injury and property damage.
Parts List
Note
Contact your Emerson sales office for Part Ordering information.
262K Filter (figure 3)
Key Description Part Number
1 Body
2 Drain Plug
3 Filter Element
4 Cartridge Gasket
5 Cap Gasket
6 Pipe Plug
* Repair Kit 19B0173X012
*Recommended spare parts
Emerson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
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to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
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E1966, 2019 Fisher Controls International LLC. All rights reserved.
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