34-SAMSS-716

Previous Issue: 29 July 2007 Next Planned Update: 29 July 2012 Revised paragraphs are indicated in the right margin Page 1 of 12 Primary contact: Al-Juaib, Mohammed K. on 966-3-8730222

Copyright©Saudi Aramco 2009. All rights reserved.

Materials System Specification

34-SAMSS-716 10 August 2009 Pneumatic Actuators On-Off Service

Instrumentation Standards Committee Members Juaib, Mohammed Khalifah, Chairman Tuin, Rienk, Vice Chairman Chetia, Manoj Dakhil, Tareq Khalil Ell, Steven Tal Fadley, Gary Lowell Faer Al Sharif, Hisham Mohammed Falkenberg, Anton Raymond Grainger, John Francis Harbi, Ahmed Saad Jumah, Yousif Ahmed Khalifa, Ali Hussain Mahmood, Balal Mathew, Vinod Qaffas, Saleh Abdal Wahab Qarni, Mahdi Ali Sahan, Fawaz adnan Saleem, Hesham Salem Trembley, Robert James

Saudi Aramco DeskTop Standards Table of Contents 1 Scope............................................................ 2 2 Conflicts and Deviations................................ 2 3 References.................................................... 2 4 General Requirements.................................. 4 5 Environmental Conditions.............................. 4 6 Design Requirements.................................... 5 7 Technical Requirements................................ 8 8 Testing and Inspections............................... 11 9 Documentation............................................. 11 10 Identification................................................. 12

Document Responsibility: Instrumentation Standards Committee 34-SAMSS-716

Issue Date: 10 August 2009

Next Planned Update: 29 July 2012 Pneumatic Actuators On-Off Service

Page 2 of 12

1 Scope

This Specification together with the appropriate Instrument Specification Sheet(s),

Form 8020-716-ENG defines the minimum technical requirements for Pneumatic

Actuators for ON-OFF service.

2 Conflicts and Deviations

2.1 Any conflicts between this specification and other applicable Saudi Aramco

Materials System Specifications (SAMSSs), Engineering Standards (SAESs),

Standard Drawings (SASDs), or industry standards, codes, and forms shall be

resolved in writing by the Company or Buyer's Representative through the

Manager, Process and Control Systems Department of Saudi Aramco, Dhahran.

2.2 Direct all requests to deviate from this specification in writing to the Company or

Buyer's Representative, who shall follow internal company procedure SAEP-302

and forward such requests to the Manager, Process and Control Systems

Department of Saudi Aramco, Dhahran.

3 References

Material or equipment supplied to this specification shall comply with the latest edition

of the references listed below, unless otherwise noted.

3.1 Saudi Aramco References

Saudi Aramco Engineering Procedure

SAEP-302 Instructions for Obtaining a Waiver of a

Mandatory Saudi Aramco Engineering

Requirement

Saudi Aramco Engineering Standards

SAES-A-112 Meteorological and Seismic Design Data

Saudi Aramco Materials System Specifications

21-SAMSS-010 Fireproofing for Valve Actuators Box and Blanket

System Enclosures

34-SAMSS-634 Local ZV Shutdown Cabinets and Smart ZV

Systems

Saudi Aramco Inspection Requirements

Form 175-341000 Pneumatic Actuators ON-OFF Service

http://standards/docs/Forms_Data_Sheets/XLS/SA-8020-716.XLS

http://standards/docs/SAEP/PDF/SAEP-302.pdf

http://standards/docs/SAEP/PDF/SAEP-302.pdf

http://standards/docs/SAES/PDF/SAES-A-112.pdf

http://standards/docs/SAMSS/PDF/21-SAMSS-010.pdf


http://standards/docs/Inspection_Requirements/PDF/175-341000.pdf




Page 3 of 12

Saudi Aramco Forms and Data Sheets

NMR-7928 Nonmaterial Requirements for Pneumatic-

Powered Valve Actuators

8020-716-ENG Instrument Specification Sheet - Pneumatic

Actuators (ON-OFF Service)

8020-827-ENG Instrument Specification Sheet - Solenoid

Operated Valves

3.2 Industry Codes and Standards

American National Standards Institute

ANSI B1.20.1 Pipe Threads General Purpose (Inch)

ANSI C84.1 Electrical Power Systems and Equipment -

Voltage Ratings (60 Hertz)

American Society of Mechanical Engineers

ASME B16.5 Pipe Flanges and Flanged Fittings

ASME SEC VIII D1 Pressure Vessels

American Society for Testing and Materials

ASTM A269 Seamless and Welded Austenitic Stainless Steel

Tubing for General Service

National Association of Corrosion Engineers / International Standardization

Organization

NACE MR0175/ISO 15156 Petroleum and Natural Gas Industries-

Materials for use in H2S-Containing

Environments in Oil and Gas Production

National Electrical Manufacturers Association

NEMA 250 Enclosures for Electrical Equipment

(1000 Volts Maximum)

NEMA ICS 6 Enclosures for Industrial Controls and Systems

National Fire Protection Association

NFPA 70 National Electrical Code (NEC)

http://standards/docs/Nonmaterial_Requirements/PDF/SA-7928.pdf



http://linkmanager.ihs.com/LinkManagerService/LKMLink.aspx?LinkRefName=NACE+MR0175%2fISO+15156&RefGroupId=30





Page 4 of 12

4 General Requirements

4.1 All dimensions and measurements shall be in the "International System of

Units" (SI), and may be followed by the equivalent value in English

(conventional) units between brackets. When not critical, the equivalent

dimensions may be rounded off to their nearest practical value.

This requirement does not apply to the vendor's standard documentation.

4.2 Equivalent Materials

Specification of or reference to materials by brand names or proprietary names

is not intended to exclude equivalent materials that may be offered by other

suppliers. Items of comparable type, quality, and performance characteristics

may be proposed.

4.3 Vendor Responsibility

Vendor compliance with the provisions of this SAMSS does not relieve Vendor

from the responsibility to furnish equipment of proper design to meet the

specified environmental, electrical, application, service, and operating

conditions.

When the actuator is ordered with its related valve, the valve manufacturer shall

be responsible for the complete actuator-valve combination.

5 Environmental Conditions

Actuators and associated control components shall operate continuously under the

following ambient temperature, humidity, and air quality conditions without any

degradation of the manufacturer's guaranteed performance.

5.1 Environmental Conditions

5.1.1 Temperature

Instruments and control systems shall operate continuously under the

following ambient air temperatures without any degradation of the

manufacturer's guaranteed performance:

Indoor Air

Conditioned (2) Outdoor

Sheltered (1)(2)(3) Outdoor

Unsheltered (2)(3)

Maximum 35°C (95°F)

55°C (131°F)

65°C (149°F)

Minimum 10°C (50°F)

0°C (32°F)

0°C (32°F)




Page 5 of 12

Notes:

1) "Sheltered" refers to permanent, ventilated enclosures or buildings, or permanently fixed sunshades with a top and three sides.

2) For instruments which dissipate internal heat and are installed in custom engineered enclosures (e.g., enclosures not included in the original manufacturer's temperature certification), an additional 15°C shall be added to the above maximum temperatures. An example, for "indoor air conditioned" installation, the equipment must perform at 35 + 15 = 50°C. Similarly, for the "outdoor unsheltered" case, the equipment shall be designed for a maximum operating temperature of 65 + 15 = 80°C.

3) For the outdoor installations only, the designer can take credit for forced or passive cooling to eliminate or reduce the 15°C heat rise. For example, if vortex coolers are used, the heat removal capacity of the coolers may be subtracted from the generated heat. No more than 15°C reduction in temperature will be given as credit. The designer shall substantiate his claim by providing the support data and calculations.

5.1.2 Contaminants

Installations shall be designed for operation in an environment with

contaminant levels as defined in the Ambient Air Quality Section of

SAES-A-112.

5.1.3 Humidity

Indoor humidity design basis shall be 20% to 80% relative humidity.

Outdoor design basis shall be 5% to 95% relative humidity (non-

condensing).

5.2 Equipment that is located offshore or nearshore (i.e., within 0.5 km from

shoreline), shall be protected against corrosion and operational failure due to

wind-borne sea water spray and the accumulation of wetted salt (NaCl).

6 Design Requirements

6.1 Mechanical Requirements

a) All threaded pipe connections shall comply with ANSI B1.20.1.

b) All flanged pipe connections shall comply with ASME B16.5.

c) Aluminum instrument enclosures shall contain not more than 0.5% copper.

d) All pressure containing tanks (15 psig and above) supplied with the

actuator shall be designed, fabricated, and stamped in accordance with the

requirements of ASME SEC VIII D1.

e) All pressure retaining components used shall be capable of withstanding

pressures of 1.5 times the maximum operating pressure.

http://standards/docs/SAES/PDF/SAES-A-112.pdf




Page 6 of 12

f) Materials of construction, including all bolt-on components and

accessories, shall be suitable for long-term exposure to the environment.

g) All parts exposed to sour gas (H2S) shall conform to NACE MR0175/ISO

15156.

h) Non-metallic, epoxy or fiberglass type materials shall not be used for

actuator enclosures.

6.2 Electrical Requirements

6.2.1 Certification

Electrical components or devices which are intended for operation in

locations classified as hazardous shall comply with the requirements of

NFPA 70, National Electrical Code, Article 500, and shall be third party

certified (labeled) as suitable for the intended area.

Labeling, listing or certification of all electrical equipment shall be by at

least one of the following:

6.2.1.1 For conduit seals:

USA -Underwriters Laboratories Inc. (UL) -Labeled or listed

USA -Factory Mutual Research Corp. (FM) -Certified

Canada -Canadian Standards Assn. (CSA) -Certified

6.2.1.2 For equipment other than conduit seals:

USA -Underwriters Laboratories Inc. (UL) -Labeled or listed

USA -Factory Mutual Research Corp. (FM) -Certified

Canada -Canadian Standards Assn. (CSA) -Certified

UK -British Approvals Services -Certified

for Electrical Equipment in

Flammable Atmospheres (BASEEFA)

Belgium -Institute National des -Certified

Industries Extractives (INIEX)

France -Centre d'Etudes et Recherches -Certified

de Charbonnages de France (CHERCHAR)

France -Laboratoire Central des -Certified

Industries Electriques (LCIE)

Germany -Physikalisch Technische -Certified

Bundesanstalt (PTB)


http://standards/docs/Saes/PDF/SAES-A-301.PDF







Page 7 of 12

Switzerland -Schweizerischer -Certified

Elektrotechnischer Verein (SEV)

Italy -Centro Elettrotecnico -Certified

Sperimentale Italiano (CESI)

Netherlands -KEMA Nederland B.V. (KEMA)

If explosion proof enclosure is not required, NEMA 4X (built

to NEMA 250 and NEMA ICS 6) shall be specified.

All enclosures shall bear labels from a third party testing

laboratory (i.e., UL, CSA, BASEEFA, KEMA, etc.) indicating

that they are designed, constructed and tested to the applicable

standards referenced within this specification.

6.2.2 Voltage and Frequency Variations

Vendor supplied electrical equipment shall be suitable for operation

within the allowable voltage range variations specified in ANSI C84.1,

Table 1.

6.2.3 Color Coding

AC power source wiring shall be as follows:

Live Black

Neutral White or Natural Gray

Ground Green or Green with Yellow Strip

DC power source wiring shall be as follows:

Positive Red or Red sleeve over any color except green

Negative Black or Black sleeve over any color except green

6.3 Instrument Air Requirements

6.3.1 Instrument Air Supply

Vendor supplied pneumatic equipment shall be suitable for operation

within the following instrument air supply pressures:

Minimum, gauge: 415 kPa (60 psi)

Maximum, gauge: 860 kPa (125 psi)




Page 8 of 12

6.3.2 Filter-Regulator

When so specified, Vendor shall supply air filter and regulator. The

filter shall remove all particulate matter of 10 micrometers in size, or

larger.

7 Technical Requirements

The following technical requirements together with those in the documents cited as

references in Section 2 of this Specification, and with the specific data per the

referenced Instrument Specification Sheet(s) shall constitute the minimum technical

requirements for the specified instruments. Vendor shall fully comply with these

requirements in his quotations for and supply of such instruments.

7.1 Operating Requirements

The actuator shall be designed to smoothly stroke the specified valve from the

wide open position to the fully closed position and vice versa, under the worst

process operating conditions (breakaway, running, seating) as specified on Form

8020-716-ENG. Smooth operation shall be guaranteed also when the related

valve has been in one position for an extended time.

Actuation for "powered operation" may be performed locally by means of a

manual operating device or remotely by means of solenoid valves or other

method as specified on Form 8020-716-ENG.

7.1.1 Type

The actuator type shall be as specified on Form 8020-716-ENG.

7.1.2 Manual Operation

When specified, the actuator shall have provisions for local manual

operation (integral hand wheel or hand pump).

Commentary Note:

An integral hand wheel or hand pump is required for all pneumatic actuators when used in ZV service.

7.1.3 Speed Control

Single or dual speed control (e.g., fast closing and slow opening or vise

versa) shall be provided as specified on Form 8020-716-ENG.








Page 9 of 12

7.1.4 Fail Safe System

Components and circuits shall be chosen so that the valve will be driven

to the fail safe position in the event of air supply, control power supply

and/or components failure. The fail safe position (open, closed, or fail-

steady) shall be specified on Saudi Aramco Form 8020-716-ENG.

7.1.5 Emergency Shut Down Service

Double-acting Emergency Isolation Valve (ZV) actuators within fire

hazardous zones shall be fireproofed per 21-SAMSS-010. Fire proofing

is not required on Single acting (spring-to-close) ZV actuators even

when located within fire hazardous zones.

Local ZV controls shall comply with requirements in 34-SAMSS-634.

7.2 Construction

7.2.1 General

The actuator shall be of enclosed weatherproof construction, NEMA 4X

with no outside moving parts or exposed sliding surfaces.

Enclosures of electrical accessories shall be certified for the specified

area classification.

All pressure containing tanks (15 psig and above) supplied with the

operator shall be designed, fabricated, and stamped in accordance with

the requirements of ASME SEC VIII D1.

7.2.2 Seals

All dynamic actuator seals in pneumatic service shall be made of Viton

and shall be field replaceable.

7.2.3 Pneumatic Connections

All pneumatic connections on the actuator body and ancillaries shall be

NPT threaded per ANSI B1.20.1.

Interconnecting tubing, shall be ASTM A269, Type 316L stainless steel,

minimum size ¼ inch with wall thickness suitable for the temperature

and pressure specified.

Tube fittings shall be ASTM A269, Type 316L stainless steel

compression type design, made by Swagelok, Parker CPI or equal.







Page 10 of 12

7.2.4 Actuator-Valve Mounting

The actuator vendor shall be responsible for fully adapting the actuator

to the valve referred to on Form 8020-716-ENG, which shall include the

supply of all necessary parts (bolting, gaskets, brackets, fittings, special

tools, etc.) to adapt the actuator to the specified valve.

7.3 Sizing

The actuator sizing shall be adequate to provide smooth reliable operation with

the minimum air supply (6.3.1) when completed with the valve specified in

Form 8020-716-ENG.

The minimum torque/thrust output of the valve operator shall be at least 1.3

times the maximum torque/thrust required to move the valve over the range of

operation pressures specified. The maximum process pressure, differential

pressure, and shutoff differential pressure, as specified on Form 8020-716-ENG,

shall be used as a basis for actuator sizing.

7.4 Accessories

A mechanical position indicator shall be provided.

Pressure gauges shall be in English (conventional) units (psig).

Air pressure regulators shall be pressure relieving type, 81 inch trim size, and

provided with a manual drain.

Nitrogen pressure regulators shall be non-pressure relieving.

Pneumatic volume tanks (accumulators), if specified, shall be provided with

vent and drain connections. When emergency air storage drums are supplied

with double-acting Emergency Isolation Valve's (ZV's), they shall be sized to

accommodate three strokes of the actuating piston. A valve stroke is movement

of the valve from the open to close position or from the close to open position.

Air storage drums are not required for ZV's with spring return actuators.

Position Limit Switches: The actuator shall be fitted with a minimum of two

limit switches for valve position indication, one at each of the fully open and

fully closed positions. The switches shall be such that they are closed when the

valve is in the appropriate fully open or fully closed position. Each switch shall

operate within 3% of the valve travel from the respective open and closed limits.

The switches shall be:

a) Dust Tight

b) Adjustable at each end of travel







Page 11 of 12

c) Provided as durable complete assemblies

Solenoid valves, when specified, shall comply with Form 8020-827-ENG.

7.5 Painting

Vendor standard painting shall be acceptable.

8 Testing and Inspections

8.1 Vendor Proposal

Vendor shall include his recommended testing procedures in his proposal.

8.2 Buyer Witnessing

When Buyer witnessing of tests is specified in the purchase order, Vendor shall

provide Buyer with adequate prior notification of and opportunity to observe

such tests.

8.3 Test and Inspection Schedule

8.3.1 Items manufactured to this specification are subject to the minimum

inspection requirements as specified in Form 175-341000.

8.3.2 Minimum Testing and Inspection Requirements

The following tests and inspections shall be the minimum testing and

inspection requirements, and may be witnessed or executed by Buyer or

Buyer's Representative when so specified:

Actual testing shall be done at:

a) The valve manufacturer's plant with the valve if the actuator is

ordered with a specified valve;

b) The actuator manufacturer's plant if the actuator is specified

without a valve.

Actuators shall be tested for function and performance including actuator

thrust or torque, stroking speed, fail safe operation, and operation of all

accessories.

The overall actuator assembly, including the actuator, consoles, controls,

and tubing, shall be leak tested for 5 minutes duration at a pressure 5 psi

above the maximum operating pressure.


http://standards/docs/Inspection_Requirements/PDF/175-341000.pdf




Page 12 of 12

9 Documentation

All documentation shall be in English and shall be per the NMR listing (Form

NMR-7928 Series) in the Purchase Order.

10 Identification

An AISI Series 300 (Austenitic) type stainless steel identification plate shall be securely

attached to the equipment with similar stainless steel fasteners. This tag shall be

marked by raised or die stamped lettering and shall be located so that the information

can be seen after the equipment is installed.

This plate shall include the following information as applicable:

a) Manufacturer

b) Model or Part Number

c) Serial Number

d) Purchase Order Number

e) Tag or Mark Number

f) Electrical Power Requirements

g) Electrical Area Certification

h) Capacity Data

Revision Summary

29 July 2007 Revised the "Next Planned Update". Reaffirmed the contents of the document, and reissued with editorial changes.

10 August 2009 Editorial revision to replace cancelled SAES-A-301 with NACE MR0175/ISO 15156.

http://standards/docs/Nonmaterial_Requirements/PDF/SA-7928.pdf



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