HINDUSTAN PETROLEUM CORPORATION LIMITED MUMBAI REFINERY DHT PROJECT SULPHUR BLOCK PART V SECTION 3.3

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1 Page 1 of 7 HINDUSTAN PETROLEUM CORPORATION LIMITED MUMBAI REFINERY DHT PROJECT SULPHUR BLOCK PART V SECTION 3.3 STANDARD SPECIFICATION FOR OIL MIST LUBRICATION SYSTEM DOCUMENT NO : 44LK /M.02/0024/A4 Rev No. Issue Date Pages Rev Description Prepared By Checked By Approved By 0 21-May-09 7 Issued for FEED SBN PDB SNG

2 HPCL, MUMBAI Standard specification PART V SULPHUR BLOCK for Oil mist lubrication system SECTION : LK-5100 Doc No.: 44LK /M.02/0024/A4 Page 2 of 7 TABLE OF CONTENTS 1.0 SCOPE GENERAL requirements INSPECTION AND TESTING PACKING DOCUMENTATION GUARANTEE 7

3 PART V Standard specification HPCL, MUMBAI SECTION : 3.3 for Oil mist lubrication system SULPHUR BLOCK Page 3 of 7 Doc No.: 44LK /M.02/0024/A4 44LK SCOPE This specification lists technical requirements for Closed loop oil mist lubrication system to be provided for the project. 2.0 GENERAL REQUIREMENTS 2.1 All pumps in unit, except forced/ pressurized lubricated pumps, shall be provided with closed loop oil mist lubrication system by the LSTK Contractor. 2.2 Centralized oil mist lubrication for all pumps and motors shall be provided. 2.3 All piping / tubing for conveying oil mist shall be of SS The system shall be provided suitable for the hazardous area classification. 2.5 All auxiliaries and instrumentation necessary for smooth and trouble free operation of the oil mist lubrication system shall be provided. 2.6 An closed-loop centralized lubrication system designed to produce, transport and deliver oil mist from a central console to supply bearing lubrication for the pumps and drivers shall be provided. 2.7 Oil mist system vendor to advise number of console/generators based on total number of users and plot layout. 2.8 The oil mist lubrication system provided by the contractor shall include the following as a minimum: - Console/Generator with auxiliary back-up unit and demisting apparatus - Microprocessor controller to monitor operating variables - Mist manifold (one for each pump) - Mist reclassifiers (one for each lubrication point) - Condensed oil mist collection container (one per equipment set) - Oil return header to route recovered oil to oil receiver - Hand pump for each condensed oil mist collection container to transfer collected oil to return header - Necessary piping for transfer of oil from hand pump to return header - Oil receiver of adequate capacity to hold oil recovered from all oil mist collection containers. Oil receiver shall be provided with drain arrangement to collect oil to be drained in portable containers. - Oil purification system including pump, filter and other necessary equipment. The system to be designed such that purified oil can be recycled to oil mist lubrication system.

4 HPCL, MUMBAI Standard specification PART V SULPHUR BLOCK for Oil mist lubrication system SECTION : LK-5100 Doc No.: 44LK /M.02/0024/A4 Page 4 of Console/Generator i) Console cabinet and oil reservoir (for main and auxiliary units) shall be constructed out of 304 SS. All console piping, tubing, tube fittings and mounting brackets shall be of 304 SS. ii) iii) iv) Console shall have a 304 SS sunscreen roof. No heating elements shall come into direct contact with the lubricating oil. The atomizing device, generator head, shall have an air bypass regulator to control mist density. v) The generator (mist) head shall provide 125% of the required airflow without exceeding the maximum capacity of the head. The head shall also be capable of proper misting operating down to 50% of rated flow. vi) vii) viii) vix) vx) vxi) The design of the mist head shall be such that its capacity can be changed without complete removal of the mist head from the console. Mist head shall include an air/oil heater. Console shall have an auxiliary back-up unit with the following: Oil mist generating capacity shall be equal to and of the same design as the main unit capable of operating independently from the main generating system provide a 10 micron oil filter easily accessible for maintenance. The oil reservoir of the main mist-generating chamber shall allow the system to operate for a minimum of 72 hours without refill. Oil reservoir shall include the following: - Level sight glass with normal operating level indicated - Fill connection with filtering screen - Tank vent - Low point drain - Low level probe - Temperature indicator - Pressure relief valve - Removable cover plate - Low point drain and valve - Low level alarm switch - Pressure gauge - Mist injection valve 2.10 Inlet Air System The inlet air system shall include the following: Filter/moisture separator Pressure regulator 2.11 Instrumentation

5 PART V Standard specification HPCL, MUMBAI SECTION : 3.3 for Oil mist lubrication system SULPHUR BLOCK Page 5 of 7 Doc No.: 44LK /M.02/0024/A4 44LK Oil mist vendor shall be responsible for supplying instrumentation to continuously monitor pressures, temperatures and oil levels. As a minimum the following variables shall be monitored: - Oil supply pressure - Supply air pressure - Regulated air pressure - Mist header pressure - Mist density - Air/oil temperature - Oil level in the mist-generating reservoir - Oil level in the bulk oil supply tank - Oil temperature in the bulk oil supply tank - Ambient temperature - The oil mist vendor shall provide a local control panel. Values for the above parameters shall be displayed on command on the panel Instruments and Safety Controls Alarm switches for low discharge pressure, low oil reservoir level, and high filter differential pressure shall be provided. The switches shall be explosion-proof dual switches. The switches shall be closed (energized) during normal operation. The contractor shall provide for local or remote annunciation of oil system alarms. Contractor is also responsible for confirming that all system electrical components are suitable for the hazardous area classification An annunciator with manual reset sequence shall be furnished by the Purchaser and located in the local control panel Provide an auxiliary relay connected to a common trouble alarm located in the control center. This auxiliary relay shall be activated by all alarms Piping All distribution piping and tubing shall be provided by EPC contractor Main headers shall be 2 inches (50 mm) galvanized steel pipe and shall not exceed 600 feet (180 meters) in length. The oil mist supply vendor shall insure that the time required for oil mist to reach the most distant point(s) on a header shall not exceed 5 minutes All headers shall be sloped continuously downward to the console at a minimum rate of 1/240. An auto drain leg shall be used when any portion of the header cannot be continuously sloped to the console due to obstructions There shall be no block valves in the header downstream of the switching valves that control the flow of mist from the mist generator Pockets shall be avoided Branch headers shall be 2 inch (50mm) stainless galvanized steel pipe Drop points shall be ¾ inch (19mm) stainless galvanized steel pipe and shall come off the top of the headers.

6 HPCL, MUMBAI Standard specification PART V SULPHUR BLOCK for Oil mist lubrication system SECTION : LK-5100 Doc No.: 44LK /M.02/0024/A4 Page 6 of Drop points shall be sloped downward towards the main or branch headers at the rate of 1/ Drop points shall terminate between 24 inches (60cm) and 48 inches (120cm) above and offset to the equipment to be lubricated. The drop leg should not interfere with access to the rotating equipment Drop points shall not have block valves Return header (for closed loop only) shall be parallel to and constructed of the same material as the main distribution header. 3.0 INSPECTION AND TESTING 3.1 All items and their parts shall be subjected to all mandatory tests and supplementary tests (wherever specified) and checks called for in the respective codes/standards/specification. 3.2 All items shall be stage wise inspected by 3 rd party inspection agency as per requirements 4.0 PACKING 4.1 All items shall be protected from rust, corrosion and mechanical damage during transportation, shipment, and storage, Rust preventive shall not be harmful to welding and shall be easily removable with a petroleum solvent. 4.2 End shall be suitably protected and the protectors shall be secured and tightly attached. 4.3 Part Nos are to be painted with an alkyd based paint. Lead based paints of stamping is prohibited. 4.4 Packing for imported items shall be seaworthy in wooden crates/cases with internal plastic envelopes and shall facilitate easy opening for dockside inspection. 5.0 DOCUMENTATION 5.1 AT OFFER STAGE Manufacturer s complete descriptive catalogue / literatures Accreditions/approvals of international agencies, for the subject item. List of deviations, the reasons thereof and the technical compatibility. 5.2 ALONGWITH DELIVERY Ten copies of manufacturer s Material Test Certificates (physical properties, chemical composition, heat treatment etc.) duty certified by inspection authority. Test support s for all mandatory as well as supplementary tests wherever specified. One soft copy on CD for all documents. 5.3 Any other drawings/document as required.

7 PART V Standard specification HPCL, MUMBAI SECTION : 3.3 for Oil mist lubrication system SULPHUR BLOCK Page 7 of 7 Doc No.: 44LK /M.02/0024/A4 44LK GUARANTEE Vendor shall guarantee that all items supplied shall conform to the settled requirements in all respects. Any items found defective shall be replaced by the supplier at his on cost and without any delay.