API 614 Lubrication, Shaft-Sealing, and Control-Oil Systems and Auxiliaries for Petroleum, Chemical and Gas Industry Services

API 614

 Lubrication, Shaft-Sealing, and Control-Oil Systems and Auxiliaries for Petroleum, Chemical and Gas Industry Services (1999 edition)

1. Scope:

This international standard covers the minimum requirements for lubrication systems, oil-type shaft-sealing systems, dry gas face-type shaft-sealing systems, and control-oil systems for general or special purpose applications. General-purpose applications are limited to lubrication systems. These systems may serve equipment such as compressors, gears, pumps, and drivers. This standard does not apply to internal combustion engines.

This international standard is intended to be used for services in the petroleum, chemical, and gas industries as well as other industries by agreement. This standard is separated into four distinct chapters. Chapter 2, 3 and 4 are to be used separately in conjunction with Chapter 1.

When the purchaser, on the purchase order or on the data sheets incorporated in the purchase order, specifies that oil and gas systems shall be supplied in accordance with this international standard, this standard shall take precedence over any other section of any other standard which covers the same subject.

• Contents:

Section 1 – General
1.1 Scope
1.2 Alternative designs
1.3 Conflicting requirements
1.4 Definition of terms
1.5 Referenced publications
1.6 System selection
Section 2 – Basic design
2.1 General
2.2 Baseplates
2.3 Oil reservoirs
2.4 Pumps and drivers
2.5 Coolers
2.6 Filters
2.7 Transfer valves
2.8 Accumulators
2.9 Overhead tanks
2.10 Oil conditioners
2.11 Seal-oil drain traps
2.12 Degassing drum
2.13 Piping
Section 3 – Instrumentation, control, and electrical systems
3.1 General
3.2 Instrument gauge boards and panels
3.3 Alarms and shutdowns
3.4 Instrumentation
3.5 Electrical systems
Section 4 – Inspection, testing and preparation for shipment
4.1 General
4.2 Inspection
4.3 Testing
4.4 Preparation for shipment
Section 5 – Vendor’s data
5.1 Proposals
5.2 Contract data
Appendix A – Typical schematics of system components and complete systems
Appendix B – Lubrication, shaft-sealing, and control-oil system data sheets
Appendix C – Inspector’s checklist
Appendix D – Vendor drawing and data requirements
Figures
1 Reservoir levels and oil level glass details
2 Overhead seal-oil tank
3 Blowdown connection
4 Typical degassing drum arrangement
A-1 Combined seal-oil, lube-oil, and control-oil systems
A-2 Seal-oil system only, with overhead tanks for equipment with more than one pressure level
A-3 Seal-oil system only, with overhead tanks for equipment with one pressure level
A-4A Seal-oil system only, for equipment with film-type seals: overhead tank upstream of seals
A-4B Seal-oil system only, for equipment with film-type seals: overhead tank downstream of seals
A-5A Seal-oil system with oil pressure lower than cooling water pressure
A-5B Sea-oil system with oil pressure higher than cooling water pressure
A-6 Seal-oil circulation system for equipment with double mechanical seals or multiple sealing pressure levels
A-7 Seal-oil module at equipment
A-8 Lube-oil and control-oil systems only
A-9 Equipment lube-oil system only
A-10 Basic oil supply module
A-11 Lube-oil module at equipment
A-12 Inner seal drain traps
A-13A Emergency lube-oil atmospheric rundown tank
A-13B Emergency lube-oil pressurized rundown tank
A-14 Direct-contact-type overhead tank module for seal-oil system, including optional transfer barrier (bladder-type) vessel
A-15 Accumulator (manual precharge bladder type)
A-16 Accumulator (direct-contact manual precharge type)
A-17 Twin oil coolers and filters with separate continuous-flow transfer valves
A-18 Twin oil coolers and filters with a single continuous-flow transfer valve
A-19 Automatic start systems for standby-pump turbine drives
A-20 Primary (centrifugal or rotary) pump arrangement
A-21 Booster (rotary) pump arrangement
A-22 Oil reservoir
A-23A Instrument piping details: pressure gauges, switches, and transmitters
A-23B Instrument piping details: combined instrument system for low-pressure alarms and pump-start switches (typical design)
A-23C Instrument piping details: combined instrument system for low-pressure alarms and pump-start switches (alternative design)
A-23D Instrument piping details: low-pressure trip switch (alternative design)
A-23E Instrument piping details: single pressure gauge for differential-pressure use
A-23F Instrument piping details: diaphragm actuator
A-23G Instrument piping details: panel- and board-mounted gauges and switches with instrument valves
A-23H Instrument piping details: externally connected level instruments
A-23I Instrument piping details: differential diaphragm actuators, indicators, switches, and transmitters

Tables
1A Minimum requirements for piping materials: instrument and control air
1B Minimum requirements for piping materials: steam and cooling water
1C Minimum requirements for piping materials: oil and gas piping
2A Minimum pipe wall thicknesses
2B Minimum tubing wall thicknesses
3 Conditions requiring alarms and shutdowns
4 Maximum severity of defects in castings
5 Maximum number of particles

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