Emerson Hytork XL Series Installations- und Betriebsanleitung

Hytork XL-Series

Rack and Pinion Pneumatic Actuators

Safety Guide

DOC.SG.HX.1 Rev. 1

November 2022

Safety Guide

DOC.SG.HX.1 Rev. 1

Notes

November 2022

This page is intentionally left blank

Safety Guide

DOC.SG.HX.1 Rev. 1

Table of Contents

November 2022

Table of Contents

Section 1: Safety Instructions

1.1 ANSI 534.6 Safety Messages ..................................................1

Section 2: General Information

2.1 General Application ...............................................................2

2.2 Inspection and Maintenance Schedules .................................2

2.3 Parts Ordering .......................................................................3

Section 3: Hytork XL-Series Actuators

3.1 Installation ............................................................................4

3.2 Operation .............................................................................5

3.2.1 Operating Media ......................................................5

3.2.2 Operating Temperature Range .................................6

3.3 Maintenance .........................................................................7

Section 4: Actuator Accessories

Actuator Accessories .....................................................................8

Section 5: Instructions for Use in Explosive Areas

5.1 Intended Use .........................................................................9

5.2 Safety Instructions ................................................................9

5.3 Maximum Temperatures .....................................................11

Appendix A: EU Declaration of Conformity

EU Declaration of Conformity ......................................................12

Appendix B: UKCA Declaration of Conformity

UKCA Declaration of Conformity .................................................13

Safety Guide

DOC.SG.HX.1 Rev. 1

Notes

November 2022

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Safety Guide

DOC.SG.HX.1 Rev. 1

November 2022

Section 1: Safety Instructions

Please read these safety warnings, cautions, and instructions carefully before

using the product.

These instructions cannot cover every installation and situation. Do not install,

operate, or maintain this product without being fully trained and qualied 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 of the contents of the associated Installation,

Operation and Maintenance Manual, including all safety cautions and

warnings. If you have any questions concerning installation, or use of this

product, contact your Emerson sales ofce before proceeding.

1.1 ANSI 534.6 Safety Messages

! WARNING

Indicates a hazardous situation that, if not avoided, could result in death or

serious injury.

! CAUTION

Indicates a hazardous situation that, if not avoided, could result in minor or

moderate injury.

NOTE

Indicates information considered important, but not hazard-related.

Safety Instructions

Safety Guide

DOC.SG.HX.1 Rev. 1

November 2022

Section 2: General Information

2.1 General Application

The Hytork XL-Series Rack and Pinion actuators are intended for the

automation and operation of quarter-turn valves like Buttery, Ball, and

Plug valves.

Rack and Pinion actuators can also be used to operate venting louvers or any

other quarter-turn applications.

This product was intended for a specic range of service conditions: pressure,

ambient temperature, operating media, and possibly other specications.

Do not expose the product to service conditions or variables other than those

for which the product was intended.

If you are not sure what these conditions or variables are, contact your

Emerson sales ofce for assistance. Provide the product type, size, serial

number and all other pertinent information that you have available.

2.2 Inspection and

Maintenance Schedules

The Hytork XL-Series Rack and Pinion actuators must be inspected periodically

and maintained as needed. Refer to Installation, Operation and Maintenance

Manual, MAC050515 EN for more detailed information.

The schedule for inspection can only be determined based on the severity of

your service conditions. Your installation might also be subject to inspection

schedules set by applicable governmental codes and regulations, industry

standards, company standards, or plant standards.

In order to avoid increasing dust explosion risk, periodically clean dust deposits

from all equipment.

When equipment is installed in a hazardous area location (potentially

explosive atmosphere), prevent sparks by proper tool selection and avoiding

other types of impact energy.

Proper care must be taken to avoid generation of static electricity on the

non-conductive external surfaces of the equipment (e.g. rubbing of surfaces,

etc.). The actuator’s surface temperature is dependent upon process

operating conditions.

Section 2: General Information

General Information

Safety Guide

DOC.SG.HX.1 Rev. 1

November 2022

2.3 Parts Ordering

Whenever ordering parts for older products, always specify the type, size

and serial number of the product and provide all other pertinent information

that you can, such as part material, age of the product, and general service

conditions. If you have recongured the product since it was originally

purchased, include that information with your request.

! WARNING

Use only genuine replacement parts. Components that are not supplied by

Emerson should not be used under any circumstances in any Hytork product.

Use of components not supplied by Emerson may void your warranty, might

adversely affect the performance of the product, and could cause personal

injury and property damage.

Section 2: General Information

General Information

Safety Guide

DOC.SG.HX.1 Rev. 1

November 2022

Section 3: Hytork XL-Series Actuators

These safety instructions are limited to Hytork XL-Series actuators which are

operating using air or inert gas. If the application requires use of a ammable

or hazardous gas, you must contact your Emerson sales ofce for assistance.

3.1 Installation

! WARNING

To avoid personal injury and property damage caused by bursting of parts

and to avoid parts damage, malfunction of control valve, or loss of control

of the process caused by excessive pressure, do not exceed the maximum

pressures or temperatures for this actuator, as given in the applicable product

literature or on the nameplate. Use pressure-limiting or pressure-relieving

devices to prevent the actuator pressure from exceeding specied limits. If

you cannot determine the limits for this product, contact your Emerson sales

ofce before proceeding.

• To avoid personal injury, always wear protective gloves, clothing, and

eyewear when performing any installation operations.

• If hoisting the actuator, use a nylon sling to protect the surfaces.

Carefully position the sling to prevent damage to the actuator tubing

and any accessories. Also, take care to prevent people from being

injured in case the hoist or rigging might slip. Be sure to use

adequately sized hoists and chains or slings to handle the assembly.

If an actuator/valve assembly should be lifted, it is strongly

recommended to connect the nylon lifting slings in such way that the

actuator and valve is supported.

• Check with your process or safety engineer for any additional

measures that must be taken to protect against process media.

• If installing into an existing application, also refer to the WARNING in

the Maintenance Section.

• Do not connect a pressure vessel to the actuator with

unrestricted media.

• Do not exceed the MAXIMUM stated operating pressures.

• Applying pressure directly to the actuator can turn the actuator’s

shaft/valve stem.

• Applying a control signal to the actuator’s solenoid can turn the

actuator/valve assembly.

Section 3: Hytork XL-Series Actuators

Hytork XL-Series Actuators

Safety Guide

DOC.SG.HX.1 Rev. 1

November 2022

! WARNING

Stay away from moving parts to prevent serious injuries. When test cycling

the actuator and valve assembly by applying pressure to the A or B port

(2 or 4 port), be aware that there are moving parts like pinion top, actuator

to valve coupling and the valve blade, ball or plug, etc. Isolate the piping

system on which an actuator-valve assembly is installed, when removing this

assembly, relieve any media pressure that may be trapped in the valve cavities

before removing the actuator for maintenance.

3.2 Operation

! WARNING

When rotating the actuator stem or shaft with loading pressure applied, use

caution to keep hands and tools out of the actuator travel path. Personal injury

and property damage is possible if something is caught between the actuator

stem and other control valve assembly parts.

3.2.1 Operating Media

1. Use clean, dry or lubricated air or inert gas.

2. Maximum Operating Pressure (MOP) = 8.3 barg / 120 psig

MOP is the pressure required to produce the maximum rated

torque at the break position for all actuators.

Pressure should not exceed MOP during valve rotation.

MOP should be the maximum pressure regulator setting.

! WARNING

It can be assured that the housing will not rupture or burst when applying 10 bar

of pressure but the cycle function cannot be guaranteed as it totally depends

on the time span to which actuator is subjected at 10 bar and the frequency at

which these pressure peaks occurs. Every time this peak occurs will, for sure,

have a signicant negative effect on the life expectancy of the actuator.

Section 3: Hytork XL-Series Actuators

Hytork XL-Series Actuators

Safety Guide

DOC.SG.HX.1 Rev. 1

November 2022

3. Refer to Table 1 on applications where the spring stroke of

spring-return actuators is pneumatically operated.

Table 1. Maximum pressure on spring stroke of spring-return actuators

4. Dew point should be at least 10K below ambient temperature.

5. For subzero applications take appropriate measures.

6. Mentioned pressure levels are “gauge pressures”. Gauge pressure is

equal to absolute pressure minus atmospheric pressure.

3.2.2 Operating Temperature Range

1. Using standard seals and grease the operating temperature

range is -20 °C to + 80 °C (-4 °F to +176 °F) as indicated on the

product label.

2. Other medias and temperatures may be used but consult your

local Emerson sales ofce for conrmation as to suitability.

Section 3: Hytork XL-Series Actuators

Spring set Maximum pressure on spring stroke of

spring-return actuators

S20 6.9 barg / 100 psig

S30 6.2 barg / 90 psig

S40 5.5 barg / 80 psig

S50 4.8 barg / 70 psig

S60 4.1 barg / 60 psig

S70 3.4 barg / 50 psig

S80 2.8 barg / 40 psig

S90 2.1 barg / 30 psig

S1C 1.4 barg / 20 psig

Hytork XL-Series Actuators

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