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A) SPECIFICATION FOR FAIL-SAFE ELECTRICAL MOTOR OPERATED VALVE

ACTUATORS

1.0 SCOPE :

The scope of this specification covers design, manufacture, assembly, shop testing and supply of failsafe electrical motor operated valve actuators intended for fully open or closing valve duty.

The design of the valve actuator shall be based on fail safe philosophy and suitable for quarter turn spring return actuator for the purpose to close the valve in emergency conditions i.e., on actuation of ESD signal or failure of motor power supply. The electric actuator assembly shall be SIL-2 certified and / or capable for standalone to use in SIL-3 applications .

The fail safe actuator shall consist of a Non-intrusive anodized aluminum enclosure, containing a 3 phase motor, worm gear reduction, a double LCD display (numeric for position or torque indication and graphic menu driven for easy operation, configuration, and diagnosis) positive torque sensing, reversing motor contactor, protection and monitoring package, position indication LEDs and Non-intrusive local pushbuttons unit for local operation , setting and interrogation, Manual Hand Pump which allows adjustment of fail stroke speed and manual operation in case of power failure, etc., as a self contained unit.

2.0 CODES AND STANDARDS : 2.1 The equipment shall comply with the requirements of latest revision of the

following standards issued by BIS (Bureau of Indian Standards) unless specified otherwise:

IS 9334 Electric Motor Operated Actuators

IS 13947 (Parts 1, 3, 4&5)

Low Voltage Switchgear

IS4722 Rotating electrical machines Specification

IS-325 Three-phase Induction Motors

IS 2148 Flameproof enclosures for electrical apparatus

IS 4691 Degrees of protection provided by enclosure for rotating electrical machinery

EN 50018

Elect r ical Ap parat us f o r Po t en t ially Exp losive

At m osp here [EEx(d )]

IEC 60079 Elect r ical app arat us t o exp losive gas at m osphere.

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IEC 60529

Classif icat ion o f d egrees o f p ro t ect ion p rovid ed b y

Enclosures (IP cod es).

IEC 60801

Elect rom agnet ic com p at ib ilit y o f Indust r ial-Process

m anagem ent and cont ro l equ ip m ent

IEC 61508

Funct ional Saf et y o f Elect r ical/Elect ron ic/

Program m ab le Elect ron ic Saf et y Relat ed Syst em s

IEC 61511

Funct ional saf et y ---- Saf et y Inst rum ent ed Syst em s

f o r

t he Process Indust ry Sect o r

2.2 In case of imported equipment, the standards of the country of origin shall be

applicable if these standards are equivalent or more stringent that the applicable Indian standards.

2.3 The equipment shall also conform to the provisions of Indian Electricity Rules

and other statutory regulations currently in force in the country. 2.4 In case Indian standards are not available for any equipment, standards issued

by IEC/ BS/ VDE/ IEEE/ NEMA or equivalent agency shall be applicable. 2.5 In case of any contradiction between various referred standards / data sheets

and statutory regulations, the following order of decreasing priority shall govern:

- Statutory regulations - Data sheets & Job specifications - Codes and standards - Manufacturers standards

3.0 GENERAL REQUIREMENTS : 3.1 The offered equipment shall be brand new with state of the art technology and a

proven field track record. No prototype equipment shall be offered. 3.2 Vendor shall ensure availability of spare parts and maintenance support services

for the offered equipment for at least 15 years from the date of supply. 3.3 The vendor shall be responsible for design, engineering and manufacturing of the

complete actuator to fully meet the intent and requirements of this specification and attached data sheets.

3.4 The offered actuator make /model shall have proven track record for its satisfactory working for at least last 2 years.

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4.0 TECHNICAL SPECIFICATIONS

i. Each MOV actuator shall include the motor, actuator unit, gears, position

indicators, limit switches, hand wheel, electrical starter and controls, terminal box etc. as a self-contained unit. The actuator shall be sized to provide adequate torque and/ or thrust to ensure the complete intended travel of the valve under the worst operating and electrical power supply conditions.

ii. Actuators will beof self-contained package units design for electrical operation of valves. Each actuator shall comprise a three-phase electric motor suitable for use on 415 volt 3 phase 50 Hz power supply, reduction gearing, reversing contactor starter complete with local controls, turns and torque limitation facilities, electronic logic controls and monitoring facilities. If required the actuator motor and starter shall be provided with heaters to prevent condensation.

iii. The actuators shall be O-ring sealed, watertight and dustproof to IP65 and shall at the same time have an inner watertight and dustproof O-ring seal between the terminal compartment and the internal electrical elements of the actuator, fully protecting the control mechanism, motor and all other internal electrical elements of the actuator from ingress of moisture and dust when the terminal cover is removed on site for cabling.

iv. Enclosure shall be rated explosion proof Ex d and suitable for installation in

Zone 1IIA/IIB, Temperature Class T3 electrical area classification. The actuator shall be sized to guarantee valve closure and provide sufficient thrust to position and fully stroke the valve against the maximum differential pressure that may develop under the specified process and/or start-up conditions. Particular attention shall be paid to unbalanced dynamic forces on the valve disc. For actuator sizing, the shutoff differential shall be considered at full differential pressure. The full differential pressure for actuator sizing shall be assumed as the maximum upstream pressure with the valve fully closed and downstream pressure as atmospheric.

v. The safety margin of motor power available for seating and unseating the valve

shall be sufficient to ensure torque switch trip at maximum valve torque with the supply voltage at 10% below nominal. The operating speed shall be such as to give valve closing and opening rate at approximately 10-12 inches per minute.

vi. The actuator shall be available with mounting base and output drive

couplings conforming to ISO 5210.

vii. A lockable hand/auto lever shall be provided to engage handwheel operation. Energization of the motor shall automatically re-engage power operation. Two selectors shall be provided on the actuator, one for

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Local/Stop/Remote selection, and with pad-lockable for each position and the other for Open, Close and Stop Commands.

viii. Electronic latching shall be provided for the torque sensing system to inhibit torque off during unseating or during starting in mid-travel against high inertia loads. A jammed valve protection circuit shall de-energize the motor after a few seconds, if no movement occurs after receipt of a signal to open or close.

ix. A local LCD display shall be provided for monitoring continuous indication of the

actuator position.

x. A separately sealed compartment containing segregated power and control terminals shall be provided. Earthing terminals shall be provided at the external of MOV. The common connection of the contactor coils at the transformer shall be grounded so that the contactors drop out in the event of a leakage to ground. The primary winding shall be separated from the secondary by a grounded screen. The secondary output shall be protected by a fuse of an easily replaceable cartridge type.

xi. Integrated hydraulic control unit if any, shall be for manual adjustment required to slow-down the opening/ closing time of valve as per process surge prevention requirement

xii. Actuator Torque Requirement

Actuator design torque shall be based on maximum valve pressure rating ANSI Class #150 at design temperature and additional safety margin of 25% (1.25x). It actuator shall be capable of opening the valve with the maximum differential pressure across the valve (equal to the maximum specified design pressure on one side and atmospheric pressure on the other side).

It shall be based on a valve torque test as defined in API 6D, Appendix-C.

VALVE ACTUATOR

1. (Start-to-close torque)/ (Start-of-stroke torque close)/ (Open-to-close break torque)

Spring-start-torque (SST) A safety margin of 1.25 x shall be applied on top of the valve start-to-close torque. (i.e.25% more)

2. Running Torque Spring-running-torque (SRT). A safety margin of 1.25 x on top of the required valve running torque shall be maintained. (i.e. 25% more)

3. Reseat Torque/ (Closing torque)/ (End-of-stroke torque)

Spring-end-torque (SET) A safety margin of 1.25 x on top of the valve closing torque shall be applied. (i.e. 25% more)

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The Bidder shall specify maximum actuator torque. The Bidder shall specify and tabulate in his quotation the required torque figures for each valve and the delivered torque figures by the. The torque values shall be expressed in Newton meter (N-m) and shall be given for the following valve positions:

o Start to open torque (breakaway torque)

o Lowest running torque during opening of the valve

o End of opening torque (valve fully open)

o Start to close torque (breakaway torque)

o Lowest running torque during closing of the valve.

o End of closing torque (reset torque, valve fully closed).

Bidder shall mention in the offer the values of the torque for

Valve stem shear torque.

Maximum torque output of actuators. 4.1 MOTOR: 4.1.1 Unless specified otherwise in the data sheet, the actuator motor shall be three-

phase, Class F insulated, squirrel cage motor of special high torque low inertia design, 15 minute rated at 33% of actuator output rated torque giving a temperature rise not exceeding that permitted for Class B insulation at standard voltage of 415 volts, 3-Phase, 50 Hz AC. Burn-out protection by embedded thermostat shall be provided. Motor shall be capable of 60 starts per hour. Motor shall be certified Ex d and be suitable for operating in a Zone 1 IIA/IIB Temperature Class T3 electrical area classification. It shall have totally enclosed non-ventilated construction.

4.1.2 The motor shall be designed for valve actuator service with high starting torque

and shall be suitable for Direct on line starting. It shall be rated for S2-15 minute duty and shall conform to IS 325 or equivalent international standards.

4.1.3 The motor shall be provided with thermister(s) embedded in the hot spots of

motor winding for protecting the motor against overheating. 4.1.4 The motor shall be suitable for starting under required torque with 75% of rated

voltage at motor terminals. 4.1.5 Motor winding shall be treated to resist corrosive agents and moisture.

4.1.6 Motor rotor shall preferably be of die-cast aluminum and, if brazed, shall be free

from phosphorous.

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4.1.7 It should be possible to separate motor from the lubricant filled gearing of actuator allowing easy replacement of motor without losing any lubricant regardless of mounting position.

4.2 INTEGRAL STARTER AND CONTROL TRANSFORMER : The reversing starter, control transformer and local controls shall be integral with the

valve actuator, unless specified otherwise in the date sheet. Solid state control of valve actuator and electrically isolated interface for remote control requirement shall be provided, wherever these features exist in manufacturers design. The integral starter shall be supplied with the following devices: a) Electrically and mechanically interlocked revering contactors for opening

and closing operations. b) Control transformer fed from two phases of the incoming power supply

with necessary tapings and protected with suitable easily replaceable fuses.

c) Terminal block for external cable connection fully prewired for internal devices of valve actuator.

d) MOV actuators operating with AC power supply shall be provided with Instantaneous Phase reversal protection to ensure that the phase motor is always presented with a correct phase of the power supply and a single phase protector which prevents energizing the contactors if one or more phase of the power supply is lost.

4.3 INTEGRAL PUSH BUTTON, SELECTOR AND CONTROL DEVICES :

The following local control devices shall be provided integral with the MOV actuator: a) Push buttons for Open/ Close selector switch shall be provided. OPEN &

CLOSE push buttons should be of green & red color respectively. Close operation shall be push type & Open operation shall be press & rotate type

b) Local/ off/ Remote Selector switch shall be pad-lockable in each position. c) Local continuous position indication from Valve fully open to Valve fully

closed position, which may be of analogue or digital type using mechanical indication/ Indicating lamps /LEDs.

Also the ROSOV shall have provision for closing from Local Push button (Proposed to be provided outside dyke wall)

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4.4 TORQUE AND TRAVEL LIMIT SWITCHES : Torque limit switches shall be provided to protect the motor from over-loading by cutting-off the power supply to motor during opening and closing operations. The limit switches shall be preset. However, it shall be possible to set the value of maximum torque during closing from 50% to 100% of rated torque of actuators. Travel limit switch shall be provided to cut-off the power supply to the motor at the end of preset limit of valve travel. The switches shall be provided with requisite number of potential-free contacts for valve actuator operation and for indication on remote panels as specified in data sheet. Instead of mechanical torque limit switches, magnetic pulse counter / encoders to measure and control the smoke of actuator may be provided, wherever this feature exists in manufacturers design.

4.5 CONTROL FACILITIES:

The internal controls and monitoring circuits shall be incorporated within the integral starter along with transformer and control unit of valve actuator. Remote control facility shall be provided as a standard feature. The remote control circuits shall be powered from internally derived control supply voltage. Common status contact indicating the availability of the MOV actuator for remote control shall be provided by monitoring the following:

- Loss of one or more phases of power supply - Loss of control circuit supply - Selector switch in local mode - Local stop push button set to Off - Motor thermostat tripped - Any other local fault/ abnormal condition

4.6 Emergency Shutdown (ESD)

ESD functionality shall be performed on actuation of any of the following conditions, moving the valve on the failure position under the action of the spring. ESD functionality shall be based on de-energized to trip condition.

Actuation of 24V DC remote command signal from Owners control system. This shall be isolated from control electronics through opto-isolator.

Loss of main power.

Actuation of emergency close local pushbutton.

Actuation of emergency remote pushbutton.

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Selection of Local Selector selected in OFF position.

Other conditions, as applicable for ESD. ESD functionality must remain valid at all the positions of Local/ Remote/Off selector switch (provided on actuator).

After an ESD action, normal operation can be restored after normalization of the process and valve opening or closing as the case may be only after resetting the system through resetting through the local Manual Reset pushbutton, or depending upon the configuration.

4.7 Hand Operation:

A hand wheel with hand auto lockable lever shall be provided for emergency operation of the MOV. The energisation of the motor shall automatically re-engage power operation.

4.8 Field Control Unit: The field control unit shall be integral to actuator and shall be powered from the actuator power supply. It shall be configurable locally either with in-built key pad or dip switches. No separate power supply shall be provided for operation of field unit.

A LOCAL/OFF/REMOTE selector switch (pad-lockable in all positions), and OPEN/STOP/CLOSE push-buttons will be part of the local control of the valve. The push-buttons and switch will allow password enabled non-intrusive actuator setting and configuration without opening any covers, and with no need for special tools or instruments.

Two separate backlit 3&1/2 LCD displays will be provided for indication of actuator parameters and configurations.

The field control unit shall be able to execute the following minimum operational commands:

Fully Open/Close the valve. Inching control Emergency shutdown (Hardwired contacts from Owners PLC shall be

provided for ESD actuation)

Emergency shutdown (ESD) signal shall over-ride any other signal command including motor winding temperature bypass.

ROSOV shall be hardwired to the Owners PLC. However capability of 2-wire communication on open protocol is also required with Owners PLC (through master control station as applicable). Master control station is

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required only if proprietary protocols are given by vendor for 2-wire communication. It is not applicable to vendors having open protocols.

4.9 Two wire control System

MOV shall be suitable for two wire control system. This actuator shall have individual field units connectable to master control station through a single 2 wire cable loop for control and monitoring. The vendor shall indicate the maximum number of field units can be connected to a master station and maximum distance from field unit to master station. The vendor shall also indicate maximum number of control input and control/ status output from each field unit that can be handled through 2 wire control system. The MOVs should either have General Purpose FCU card embedded for communicating to any make of Master Station or the FCU should be compatible for direct communication on 'Open Type International Standard 2 wire serial communication protocol/MODBUS for serial communication directly. The following signals shall be available at the Control room:

-Valve open

-Valve closed

-Actuator fault

-Field unit fault

-Cable fault

-Monitor relay trip

-Thermostat trip

-Local stop selected

-Local Control selected

-Valve Obstructed

-Valve jammed

Remote control function shall be provided to permit the actuator to:

-Open fully

-Close fully

-Assume Emergency Shut Down position

Each field unit /MOV actuator shall be addressable from master control station through unique address code. All the field settable / adjustable parameters of MOV actuator shall be settable from master control room Similarly all the indication available on the MOV actuators shall be available at the master control station. Full diagnostics feature of MOV shall be available on master control

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room. Suitable redundancy shall be provided such that in case of fault in the cable, the field unit continues to communicate with the master control room.

4.10 REMOTE POSITION INDICATOR: If requirement of remote position indication is specified in the data sheet, a 4-20 mA

remote position transmitter shall be provided in the valve actuator and a continuous position indicator for mounting in purchasers remote panel shall be supplied as a loose item. The remote position indicator shall continuously indicate the position of travel of the valve.

4.11 NAMEPLATE: Each motorized valve actuator shall be provided with a stainless steel nameplate

furnishing the following details, attached firmly to it at a place convenient for reading: a) Actuator tag number as per data sheet b) Motor kW rating, motor time rating, motor supply voltage, nominal motor

phase current, auxiliary switch rating c) Maximum torque setting d) Actuator enclosure type, lubricant type e) Actuator type, wiring diagram number/ catalogue number, actuator serial

number A separate nameplate shall be provided for hazardous area application.

4.12 The enclosure of complete MOV actuator including motor, integral starter, control

transformer unit and all control devices shall have minimum IP-65 degree of ingress protection.

4.13 WIRING AND TERMINALS:

4.14 All devices provided in the actuator shall be wired up to the terminal block. The contacts for remote operation and indication shall also be wired up to the terminal block. Minimum 10% spare terminals shall be provided for future interlocks. Internal wiring for power and control circuits shall be appropriately sized for MOV actuator rating. Each wire shall be identified at both ends using PVC ferrules. The terminal compartment shall be separated from the inner electrical components of the actuator by means of a watertight seal so that the actuator electrical components are protected from the ingress of moisture and foreign

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materials when the terminal cover is removed during installation and maintenance.The different functional PCBs will be slot specific and non interchangeable among themselves to facilitate easy trouble shooting and replacement.

4.15 Vendor shall be solely responsible for the compatibility of the MOV actuator with

the valve and for the selection and sizing of various electrical devices and components in the actuator.

4.16 The actuator shall be provided with minimum three adequately sized cable entries viz., one for power cable and two for control cables. However, the actual number of control cable entries in actuator with 2-wire control system shall be provided based on job requirements as specified in data sheets/ specification for control systems for MOVs. Suitable double compression cable glands shall be provided with each actuator for all cable entries and sealing plugs for all control cable entries. The cable glands and plugs shall be made of Nickel-plated brass.

5.0 REQUIREMENTS FOR HAZARDOUS AREAS:

Hazardous Area Classif icat ion and Prot ect ion: Instruments located in hazardous area shall be certified to meet or exceed the electrical hazardous area defined by Area classification. The actuator accessories used shall be flame proof and suitable for hazardous area of Zone 1, Group IIA/IIB, T3 or better for applications. Additionally all valve associated instruments shall be weatherproof to IP65./PI67 Instruments certified for use in the specified hazardous area classification shall be recognized by authority like FM,CENELEC, PTB, BASSEFA, ATEX , CCOE/PESO etc.

Actuators meant for hazardous areas shall meet the requirements of IS 2148,

IEC 79 or equivalent international standards. The manufacturer shall possess valid test certificates issue by a recognized independent test house (CIMFR/ Baseefa / LCIE/ UL/ FM or equivalent) for the offered actuators. All indigenous equipment shall conform to Indian standards and shall have been tested and certified by Indian testing agencies. All equipment (indigenous and imported) shall also have valid statutory approvals as applicable for the specified hazardous locations from Petroleum and Explosives Safety Organization (PESO)/ CCE or any other applicable statutory authority. All indigenous flameproof equipment shall have valid BIS license and corresponding marking as required by statutory authorities.

5.1 Apart from the nameplate indicating the Tag NO. a separate nameplate shall also

be provided on each actuator to indicate the details of the testing agency (CIMER or equivalent), test certificate number with date, statutory approval number with date, approval agency (PESO/ CCE/ DGMS or equivalent), BIS license number with date, applicable Gas group and Temperature class etc. the nameplate shall

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be riveted/ fixed with screws and not pasted. In case any of the standard details listed above are embossed on the enclosures, the same need not be repeated.

5.2 Actuator units shall be SIL-2 certified and shall be capable for standalone use in

SIL 3 applications, having certification conforming to IEC 61508 / IEC 61511from TUV/Exida or other reputed accredited international agencies.

6.0 INSPECTION, TESTING AND ACCEPTANCE : 6.1 The equipment shall be subject to inspection by Owner or by an agency

authorized by the owner. Manufacturer shall furnish all necessary information concerning the supply to Owner. During the course of manufacturing, the purchaser or his authorized representative shall be free to visit the works and assess the progress of work and the manufacturer shall render him all possible assistance to do so.

6.2 Following routine and acceptance tests shall be carried out at the manufacturers

works under his supervision and at his own cost for all the actuators in line with QAP approved by the owners.

6.2.1 ROUTINE TEST : Functional and calibration test for torque and limit switches

6.2.2 ACCEPTANCE TESTS :

Response time test

Variation of supply voltage

Variation of frequency

Tests for motor (As per relevant IS/ IEC)

Life test

Test on output shaft

FOLLOWING TESTS SHALL BE PROVIDED PRIOR TO SHIPPING:

Actuator operation, Cycle (open-close) each valve with its actuator at least five times, for proper actuator operation. Verify that valve position coincides with position indicators.

Opening -closing position

Actuator output speed & Open-Close time

Actuator travel setting

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Operational torque test as per API 609. The maximum measured torque shall be less than 75 % of the design torque specified by the valve manufacturer for actuator sizing.

FAT and SAT for the system Two weeks notice shall be given to Owner for witnessing the final testing of the complete assembly to ensure satisfactory operation of the MOV actuators. Type test certificates shall be furnished with bids. Final acceptance of MOVs at site shall be subject to successful testing of the MOV actuators with the valves.

6.3 Type test certificates, original drawings referred in certificates and statutory

approval certificates and BIS license, where applicable, shall be shown to the inspection agency on demand. The certificates and BIS license must be valid at the time of dispatch.

6.4 Test certificates of bought-out components shall be shown to the inspection

agency on demand. 7 PACKING AND DISPATCH :

All the equipment shall be divided into multiple sections for protection and ease of handling during transportation. The equipment shall be properly packed for the selected mode of transportation, i.e. by ship, rail or trailer. The equipment shall be wrapped in polythene sheets before being placed in crates/ cases to prevent damage to finish. The crates/ cases shall have skid bottoms for handling. Special notations such as Fragile. This side up, Center of gravity, Weight, Owners particulars, PO no. etc. shall be clearly and indelibly marked on the packages together with other details as per purchases as per purchase order. The equipment may be stored outdoors for long periods before installation. The packing shall be completely suitable for outdoor storage in areas with heavy rains and high ambient temperature unless otherwise agreed. In order to prevent movement of equipment/ components within the crates, proper packing supports shall be provided. A set of instruction manuals for erection, testing and commissioning, a set of operation and maintenance manuals and a set of final drawings shall be enclosed in a waterproof cover along with the shipment. These precautions shall be read in conjunction with similar specifications for valves.

8 SPARES & SPECIAL TOOLS :

8.1 Vendor shall submit list of standard spares of Actuators along with unit rates with

validity for 2 years.

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8.2 Vendor shall submit list of special tools, if required for maintenance of Actuators along with unit rates with validity of 2 years.

The above shall be submitted in a separate sealed envelope as mentioned in

the price-bid formats 9 COMMISSIONING ASSISTANCE :

Vendor shall arrange to depute his commissioning engineer to each locations of

IOCL/BPCL/HPCL as covered in Purchase order for supervising commissioning activities of actuators without any extra charges. The representative shall ensure that the actuator is commissioned successfully.

10 WARRANTIES :

10.1 Vendor shall provide warranty for the performance of Actuators for 18 months from

date of dispatch or 12 months from date of installation, whichever is later. 10.2 In addition, vendor shall also include comprehensive extended warranty of 3

years commencing from the date of expiry of warranty as per clause 10.1 as above

10.3 During the entire warranty period as above vendor shall carry out the preventive

checks(half yearly visits) besides attending to break downs within a period of 72 hours .The scope of the vendor shall also include the spares, tools & tackles etc., visit of service personnel and other travelling/boarding expenses replacement of defective parts free of cost, if any. However , suitable assistance(un skilled labour and lifting tools )if any , required for attending the service/repairs will be provided by the owner.

11.0 DATA SHEET FOR MOV ACTUATOR : PURCHASERS DATA 1.0 SITE CONDITIONS

S.NO.

1.1 Altitude Less than 1000 m Above MSL

1.2 Design ambient temperature -10 deg.To +55 deg. C

1.3 Humidity max. 100 %

1.4 MOV Tag Nos Will be intimated after award of contract.

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2.0 SYSTEM CONDITIONS :

S.NO.

2.1 Supply Voltage 415V+ 10%, 3-phase AC for MOV

2.2 Supply Frequency 50 Hz + 3%

2.3 System Earthing Solidly Earthed

3.0 OPERATING ENVIRONMENT :

S.NO.

3.1 Area Classification : Zone 1

3.2 Gas Group : IIA/IIB

3.3 Temperature Class : T3

3.4 Construction : Flameproof Ex(d)

3.5 Ingress Protection : IP65

3.6 Painting : Epoxy base

3.7 Fire proofing required : No

3.7.1 For MOV Tag Nos : Not Applicable.

3.7.2 With fireproof rating : Not Applicable

4.0 Valve Duty , Mode of Control and Devices for Control

4.1 Valve duty

Fully open and fully closed : Yes.

. Partially open and partially closed : No

Control Requirement

: Local & Remote for all MOVs

Local / Remote / Off selector switch on MOV Actuator

: Required

Compatibility for interfacing with 2 wire control system

: Required

Setting adjustable parameters of Actuator ( for 2 wire control system)

: From field & remote thru Master Control Station / PLC for 2 wire control

Local Mechanical / LCD indication is required.

Remote Potentiometer / transducer for remote continuous indication

Required in control room thru Master Control Station

Intermediate travel limit switch Required

Potentials free contacts for indication on remote panel and other interlocks

For Valve Open Position Required

For Valve Closed Position Required

For remote indication or position of Local / Remote selector switch

Required

For availability of MOV actuator Required

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Remote Operation ( contact from monitoring relay)

Remote emergency stop push button for Stopping Actuator

Required.

DCS/PLC interface for Remote Control / Indication

Remote Indication required for all MOVs

Indication

Open/Close Limit Switches Required

Local position indicators/LEDs Required

Time of operation

- Opening 90 sec or as per design of valve

- Closing 90 sec or as per design of valve

Make of MOV Actuator Rotork, Biffi, Auma, Limitorque or equivalent

Double Compression Glands & plugs ( for unused entries ) , to be supplied with the Actuator

Flame & Weather Proof) MOC-SS 316

Test and Approval Certificates for Flame Proof Actuators

For Indigenous make MOV Actuators

Refer technical specifications of Electrical MOV Actuators

For Imported make MOV Actuators

Refer technical specifications of Electrical MOV Actuators

Submission of Type Test Certificates -

Yes

SIL certification Yes

Notes : 1. N.A. denotes Not Applicable. 2. Area Classification Zone, Gas group and Temperature class indicated at 5 Nos.

3.1 to 3.3 above refer to IS/IFC standards.

3. Two separate earthing bosses shall be provided in each actuator. All the actuators shall be controlled through 2 wire control station. The Master station , if available with the owner, the new actuators shall be hooked to the existing Master station. Vendor to quote rates including Internal Field Control Unit (IFCU) for actuators suitable for 2 wire control system.

Supply of master station is not in the scope of this tender.

4. The purchaser shall provide single point power supply to the actuator as per

S.No.2 above. Any other control supply voltage required shall be internally derived by the manufacturer within the actuator.

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5. Vendor shall furnish complete data as per Part-II of this data sheet for each MOV Actuator along with the offer.

6. Remote Input signals for opening / closing / stopping the MOV shall be provided

through the momentary closing of separate potential free contacts in owners panel. Necessary controls required for running the motor for the complete opening / closing sequence of the valve using such input signals shall be provided by manufacturer in the actuator.

12.0 Vendor data requirement MOV Actuator

S.No. Description With Bids

Post order Final Documents

For Review

For Ref./Records

1 Vendor Drawing/Document Submission Schedule

* *

2 List of deviations, if any, to MR requirements

3 Data Sheets (duly filled in * * *

4 G.A and mounting details of actuators

* *

5 Wiring and Connection diagrams

* *

6 QA Plan of Vendor * *

7 Shop Inspection Plan and Testing Procedure

* *

8 Test Records *

9 Type Test Certificates for Flameproof / Explosion proof equipment

* *

10 Recommended maintenance spares with prices

*

11 Equipment storage procedure

*

12 Data Books / Manuals

a. Installation Manual and Standard

b. Operating/Maintenance Manual

c. Catalogues / Brochures indicating complete technical

*

* * *

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details and data for actuator selection

13 Details of fireproofing, if specified in data sheet

* * *

Notes :

1. Vendor shall furnish soft copy of all drawings in Auto Cad version 14.0/ 2000

and all documents in MS Office 2000, as part of final documentation. 2. All technical details and documents furnished with bids shall be treated as data

for engineering. These shall however, be subject to Purchasers review after order placement and bidder shall comply to MR/Tender requirements without any cost & time implication.