Emerson Fisher 2052 User Manual

www.Fisher.com
Fisher
™
2052 Diaphragm Rotary Actuator
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 1.................................
Educational Services 4...........................
Specifications 4...............................
Installation 4..................................
Actuator Mounting 5..........................
Maintenance 7.................................
Replacing Diaphragm 8........................
Replacing Diaphragm Plate,
Diaphragm Rod Assembly, and Spring(s) 9......
Changing Or Replacing Actuator Lever 11.........
Positioner Mounting
(3610, DVC6020, or DVC6200) 12.............
Top‐Mounted Handwheel 12....................
Locking Mechanism 13.........................
Parts Ordering 17...............................
Parts List 17...................................
Figure 1. Fisher Control‐Disk™ Valve with
2052 Actuator and DVC6200 Digital Valve Controller
W9418-2
Introduction
Scope of Manual
This instruction manual includes installation, adjustment, operation, maintenance, and parts information for the
Fisher 2052 diaphragm rotary actuator (figure 1). Instructions for the control valve, positioner, manual actuator, and
other accessories are included in separate manuals.
Do not install, operate, or maintain a 2052 actuator 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
or Local Business Partner before
proceeding.
Description
2052 spring‐and‐diaphragm rotary actuators are used on rotary‐shaft valve bodies for throttling or on‐off applications.
The 2052 may be used for on‐off service without a positioner, or it may be used for throttling service with a positioner,
depending on service conditions. The 2052 has an ISO 5211 mating interface that allows installation to non‐Fisher
valves. Refer to separate bulletins for valve and positioner information.
A top-mounted handwheel option is available for infrequent service as a manual actuator. For repeated or daily manual
operation, the unit should be equipped with a side-mounted declutchable 1078 manual actuator. Externally adjustable
travel stops are used to limit the degree of rotation at both ends of the actuator stroke.
The lever for the 2052 actuator is supported by bushings. The lever may be changed to accommodate valve bodies
with different size valve shafts.
Instruction Manual
D103296X012
2052 Actuator
June 2017

Emerson Fisher 2052 Specifications

General

Manufacturer	Emerson
Enclosure Rating	NEMA 4X, IP66
Series	2052
Input Signal	4-20 mA
Output Signal	Pneumatic
Power Supply	24 VDC
Communication Protocols	HART
Supply Pressure	1.4 to 7 bar
Housing Material	Aluminum
Temperature Range	-40°C to 85°C (-40°F to 185°F)
Ambient Temperature Range	-40°C to 85°C (-40°F to 185°F)

Summary

Introduction

Scope of Manual

Defines the scope and purpose of the instruction manual for the 2052 actuator.

Manual Contents Overview

Outlines the topics covered in the manual, including installation, adjustment, operation, and maintenance.

Description

Specifications

Educational Services

Installation

Actuator Mounting Procedures

Details the steps for mounting the actuator to a valve body or changing its mounting style.

Maintenance

Replacing Diaphragm

Provides instructions for the disassembly and assembly required to replace the actuator diaphragm.

Replacing Diaphragm Plate, Rod Assembly, and Spring(s)

Guides on replacing the diaphragm plate, rod assembly, and springs, including safety precautions.

Changing or Replacing Actuator Lever

Outlines the procedure for removing, inspecting, and installing a new actuator lever.

Positioner Mounting

Instructions for mounting positioners like 3610, DVC6020, or DVC6200 onto the actuator lever.

Top-Mounted Handwheel Installation

Describes the installation and use of the optional top-mounted handwheel for manual operation.

Locking Mechanism Overview

Introduces the locking mechanism and its purpose for securing the actuator in a specific position.

Installing Size 1 Locking Mechanism

Detailed steps for installing the locking mechanism kit for Size 1 actuators.

Operating Size 1 Locking Mechanism

Instructions on how to lock and unlock the Size 1 actuator using the locking mechanism.

Installing Size 2 and 3 Locking Mechanism

Steps for installing the locking mechanism kit for Size 2 and Size 3 actuators.

Operating Size 2 and 3 Locking Mechanism

Instructions on how to lock and unlock Size 2 and 3 actuators using the locking mechanism.

Parts Ordering

Parts List

A comprehensive list of replacement parts for the 2052 actuator, identified by key numbers.

Actuator Locking Mechanism Kits

Information on available kits for actuator locking mechanisms, including part numbers by size.