CONTROL VALVE STANDARD SPECIFICATION 1.0 SCOPE 1.1 …

1 SPECIFICATION CONTROL VALVE Page 1 of 11 CONTROL VALVE STANDARD SPECIFICATION SCOPE This document along with datasheet specifies the requirements for the design , selection, sizing, testing, documentation and shipping of CONTROL VALVE , its material and accessories. STANDARDS IEC 60079 Electrical apparatus for explosive gas mixture IEC 60529 Degree of protection provided by the enclosures IEC Industrial process CONTROL valves, noise consideration, CONTROL VALVE aerodynamic noise prediction method IEC Industrial process CONTROL valves, noise consideration, prediction of noise generated by hydrodynamic flow IEC 61158 Fieldbus STANDARD for use in Industrial CONTROL System IEC 61158-2 Physical layer SPECIFICATION and Service definition for Fieldbus FF 890 Function Block Application Process Part 1 FF 891 Function Block Application Process Part 2 FF 892 Function Block Application Process Part 3 FF 893 Function Block Application Process Part 4 FF 894 Function Block Application Process Part 5 IEC 61508 Functional Safety of Electrical/Electronic/Programmable Electronic Safety related Systems.

2 IEC 61511 Functional safety instrumented system for the process industry sector IEC 61804 Functional blocks (FB) for Process CONTROL : Electronic Device Description IBR Indian Boiler Regulation ANSI/ASME B Pipe Threads B Steel Pipe Flanges and Flange fittings B Ring joint gaskets and grooves for steel pipe flange B Radiography procedure API American Petroleum Institute ISA S Flow Equation for sizing CONTROL valves S CONTROL VALVE capacity test procedure CONTROL VALVE positioner stability CONTROL VALVE terminology SPECIFICATION CONTROL VALVE Page 2 of 11 Laboratory measurement of aerodynamic noise generated by CONTROL valves Face to face dimensions of integral flanged Globe-style CONTROL VALVE bodies (ASME Class 125,150,300 and 600)

3 Face to face dimensions of flanged Globe-style CONTROL VALVE bodies (ASME Class 900,1500 and 2500) Inherent flow characteristic and Rangeability of CONTROL valves. Hydrostatic testing of CONTROL valves Test procedure for CONTROL VALVE response measurement for step inputs TR CONTROL VALVE response measurement for step inputs Method of evaluating the performance of positioners with analog input signals and pneumatic output. CONTROL VALVE aerodynamic noise prediction Considerations for evaluating CONTROL VALVE cavitation. NACE National Association of Common Engineers MR0103 Materials Resistant to Sulphide stress cracking in Corrosive Petroleum Refinery Environments ITK Interoperability Test Kit (Latest version) IS-2148 Flame proof enclosures of electrical apparatus.

4 Leakage Class of CONTROL VALVE In case there is any conflict between various standards mentioned above and the purchaser provided specifications, the vendor shall get written clarification from purchaser before proceeding further selection/sizing of material. BID DOCUMENT Vendor shall submit the bid in two sealed parts Technical and Priced bid. Unsealed priced bid shall not be accepted. Vendor to attach following as minimum with the bidder, i. Completed data sheets signed & stamped. Signed and stamped copy of this SPECIFICATION . ii. Sizing calculations which shall also include noise level in dBA, inlet and outlet velocity, possibility of flashing/cavitation and the measures taken to eliminate/reduce these phenomena and VALVE percentage opening at minimum, normal and maximum flow.

5 Iii. Back-up literature and catalogues for the offered models with model decoding details and other details for each type of CONTROL VALVE and accessories offered. iv. A copy of approval for items such as limit switches, solenoid valves, Positioners, from PESO/CCE alongwith the test certificate. SPECIFICATION CONTROL VALVE Page 3 of 11 Vendor shall provide price against each CONTROL VALVE . The price shall include all the associated accessories, inspection, testing, and applicable statutory certificate requirements. The offer shall include one number of AFR for CONTROL VALVE . The data-sheet for AFR, is attached herewith as Annexure I. Purchaser intends to reduce repeated technical clarifications.

6 Hence, vendor s offer shall be clear and unambiguous. In general no deviation is acceptable. In case of any unavoidable deviation, vendor shall list out the deviations along with technical reasons. Vendor, in general, shall desist from any alternate offer unless it is necessary due to changes in the datasheet conditions. Any alternate offer shall include separate pricing and all sizing calculations. If at any stage, till the completion of order, the offered instruments and accessories are found unsuitable for the specified operating conditions, vendor shall replace the same with suitable make/model no. to meet the specifications without any schedule & cost implications. The technical catalogues shall be in English language.

7 Any offer without technical catalogue shall be considered as incomplete and is liable for rejection. GENERAL Datasheet provides the process and operating information for the design & selection of CONTROL VALVE and materials for the project. The vendor is responsible for the design and construction of the supplied CONTROL valves for the services and conditions specified in the requisition. Vendor shall check the following, i. Check the calculation of the selected Cv value and rangeability for the given data. The rangeability shall be 30:1, as a minimum. ii. Actuator shall be sized as per shut-off differential pressure indicated. Actuator should work with air and should not require any lubrication. Vendor to note that the maximum air pressure available is 4kg/cm2 and accordingly vendor shall size & select the actuator.

8 Iii. Material selection for VALVE body, trim, packing material and other parts of the VALVE for the fluid and its operating condition indicated. iv. Materials used for other accessories like, air filter regulators, solenoid valves, limit switches, positioners, pilot relays, volume boosters, locking relays, interconnecting tubing, fittings etc. on the basis of site condition and other applicable standards. In case the vendor s calculation indicates cavitation, vendor must offer anti-cavitation VALVE . v. Perform the prediction calculation noise, cavitation and flashing for all process condition and suggest suitable measures for controlling the same within the permissible limits. In case the vendor s calculation indicates noise more than 85dB, vendor must offer low noise trim.

9 SPECIFICATION CONTROL VALVE Page 4 of 11 vi. Inform the purchaser if there is any irregularity in datasheet and take written approval before supplying any VALVE . If a CONTROL VALVE is provided with an actuator and/or accessories from other source, but supplied as part of the CONTROL VALVE requisition, the responsibility of the overall VALVE assembly ( VALVE complete with actuator and/or accessories) shall be with the CONTROL VALVE vendor. Vendor shall follow purchaser approved vendor list for all the accessories. If the approved vendor list is not available, vendor shall take prior approval from the purchaser. For similar service conditions, different VALVE model should not be offered. The variety of types and sizes of CONTROL valves and supplied related materials ordered under the requisition shall be minimised.

10 Vendor shall offer STANDARD CONTROL VALVE models unless the process service conditions are so severe that special CONTROL valves are needed. Valves with more than 600# rating shall undergo 100% radiography as per applicable ANSI STANDARD . All CONTROL VALVE accessories shall be supplied in fully assembled conditions complete with 1/4 air tubing. Material of tube and tube fitting shall be Stainless Steel . The leakage class shall be as per the datasheet. Soft seat for the leakage class VI shall be offered. CONTROL VALVE stroking time shall be as follows, Body size Maximum stroking time 2 inches 10 seconds 3 inches 15 seconds 4 inches 15 seconds 6 inches 20 seconds 8 inches 35 seconds 10 inches 50 seconds > 10 inches to be specified Digital (Smart Type) positioner with diagnostic capability shall be provided and shall meet the following requirements as minimum: The VALVE positioner shall be intrinsically safe.