Emerson Fisher 262K Instruction Manual

Instruction Manual

D100279X012

262K Filter

September 2019

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

Product Description

before proceeding.

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

FILTER
ELEMENT

W0225‐1

PIPE PLUG

www.Fisher.com

262K Filter

September 2019

Table 1. Specifications

Instruction Manual

D100279X012

Body Size

NPS 3/4

End Connection Styles

3/4 NPT screwed

Temperature Capabilities

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

Flow Coefficients

Complies with the requirements of ATEX Group II
Category 2 Gas and Dust

: 3.96

C

v

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)

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.

Maximum surface temperature depends on operating
conditions

Gas: T6...T2
Dust: T85...T208

Specifications

Specifications for the 262K filter are in table 1.

(1)

Ex h IIC Tx Gb
Ex h IIIC Tx Db

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.

2