API6A Choke Valve Material Trim Service …

1 Stanbel Road Salisbury Plain, South Australia 5109 Telephone +61 (0)8 8285 0033 Fax +61 (0)8 8285 BRISBANE PERTHAPI6A Material Service CATEGORIES & RATING LEVELSOVERVIEW STANDARDSA ustralian Pipeline Valve (APV) standards comply with technical specification API-6A. The description for APV equipment consists of a general description, working pressure, temperature rating Material class rating, product specification level (PSL) and performance requirement (PR). These ratings are defined in the following API-6A comply with API-6A (ISO 10423), APV offers: Pressure ratings in psi: 2000, 3000, 5000, 10,000 & 15,000.

2 Temperature ratings: L, P, R, S, T, U, V, X & Y. Material class: AA, BB, CC, DD, EE, FF & HH. Product specification level: 1, 2, 3 & 4 (PSL 1, 2, 3, 4). Performance requirement: 1 & - RECOMMENDED MINIMUM PSL FOR PRIMARY PARTSNACENoYesYesYesNoYesHigh H2S ConcentrateNoNoYesNoNoYesClose Proximity*NoNoNoYesYesYesRated Working Pressure, PSIPSLPSLPSLPSLPSLPSL5,00011221310,00022 333415,000 and up334444*See paragraph A5 of API-6A 17a. is standardPR2 also available (increased cycle times on test required) CHART - MINIMUM PSL FOR PRIMARY PARTSFLOW CHART - MINIMUM PSL FOR PRIMARY PARTSS tart hereRated workingpressure 103,5 MPa(15 000 psi)?

3 Ye sYe sYe sNoNoNoYe sYe sYe sNoNoYe sNoYe sNoHigh H2 Sconcentration?Gas well?ISO 15156(all parts)?High H2 Sconcentration?Rated workingpressureGas well?Rated workingpressureRated workingpressureGas well?Gas well?Rated workingpressurePSL 3 GPSL 3 GPSL 3 PSL 3 GPSL 3 PSL 2 PSL 3 PSL 2 PSL 2 PSL 1 PSL 3 PSL 2 PSL 1> 34,5 MPa(5 000 psi) 34,5 MPa (5 000 psi)> 34,5 MPa (5 000 psi) 34,5 MPa (5 000 psi)> 34,5 MPa (5 000 psi) 34,5 MPa (5 000 psi)> 34,5 MPa(5 000 psi) 34,5 MPa (5 000 psi)Extract from API6A figure , specification for wellhead and christmas tree Material REQUIREMENTSMATERIAL CLASS BODY.

4 BONNET & FLANGEAA - General ServiceCarbon or low allow steelCarbon or low allow steelBB - General ServiceCarbon or low allow steelStainless SteelCC - General ServiceStainless SteelStainless SteelDD - Sour ServiceCarbon or low allow steelCarbon or low allow steelEE - Sour ServiceCarbon or low allow steelStainless SteelFF - Sour ServiceStainless SteelStainless SteelHH - Sour ServiceCRAsCRAsMINIMUM Material REQUIREMENTS PRESSURE CONTROLLING PARTS As per API6A (ISO 10423) 2013: As defined by ISO 15156 (all parts) (NACE MR0175) (See API6A ) In compliance with ISO 15156 (all parts) (NACE MR0175) (see API6A ) CRA required on retained fluid-wetted surfaces only; CRA cladding of low-alloy or stainless steel is permitted (See API6A ) CRA as defined in API6A ; ISO 15156 (all parts) (NACE MR0175.)

5 See API6A ) definition of CRA does not TEMPERATURE RATINGSF C *S0to140-18to60T0to180-18to82UV035toto25 0250-182toto121121 TEMPERATURE CLASSIFICATIONOPERATING RANGERoom Temperature*X*0to350-18to177to343Y*0to65 0-18 API PRESSURE/TEMPERATURE RATINGS (Y)*0 to 2503003504004505005506006502000195519051 8601810173516351540143030002930286027852 7152605245523102145500048804765464545254 340409038503575 Rated Working Pressure PSITEMPERATURE IN F* Based on Y Te mp. Due to elastomers, Gate valves & chokes are temp T or U as standard hence consult seperate Material Control is found in API Specification 6A, Specification for Wellhead and Christmas Tree EquipmentSection 400 PSL Material Control is found in API Specification 6A, Specification for Wellhead and Christmas Tree Equipment Section 400 There are two Performance Requirement Levels, PR1 and PR2.

6 The latter represents more rigorous performance requirements. See API Specification 6A, Section 300 and Section 900. Section 905 covers valves ( - Flowline valves , - Actuated valves ).PSL (PRODUCT SPECIFICATION LEVEL) Material REQUIREMENTSPSL (PRODUCT SPECIFICATION LEVEL) QUALITY CONTROLPSL (PERFORMANCE REQUIREMENTS) LEVELS aaaabbbbcdbbbbcdabcd* No longer referenced in API6A /ISO TYPESTANDARD TRIMFor essentially non corrosive liquids or gases. Typical are crude and reined oils, natural or refined gases and processed hydrocarbons.

7 Typical uses are wellheads, manifolds flowlines, and other similar installations requiring a through conduit Valve . The temperature limitations are 0 to 250 F ( C to 121 C).STAINLESS TRIMFor substantially the same Service as T-21 but where the corrosion resistance of 13% Chrome Stainless Steel internal parts are desirable. Also usable for mildly corrosive fluids and gases where limited corrosion of the internal body surfaces can be tolerated. The temperature limitations are 0 to 250 F (-17 C to 121 C). Recommended when partial pressure of CO2 is greater than FULL STAINLESS STEEL TRIMFor any liquid or gaseous product for which the resistance of the 13% Chrome Stainless is adequate.

8 Also used where the resistance of Stainless Steel is desirable from the standpoint of product purity. The temperature limitations are 0 to 250 F ( C to 121 C). Recommended when partial pressure of CO2 is greater than 30. SOUR GAS & OILP rimarily for sour gas and oil where resistance to Hydrogen Sulfide embrittlement is required. Also suitable for other chemicals, products or hydrocarbons when H2S is present. May be used when CO2 is present in smaller amount then H2S. The temperature limitations are 0 to 250 F ( C to 121 C).

9 STAINLESS SOUR GAS AND OIL TRIMP rimarily for sour gas and oil when the CO2 exceeds the H2S content. It is intended to provide resistance to the metal loss type of corrosion usually associated with CO2, plus resistance to Hydrogen Sulphide embrittlement. The temperature limitations are 0 to 250 F ( C to 121 C).WATERFLOW (UNINHIBITED)Primarily for use in untreated or uninhibited brackish saline water typically associated with oilfield waterflood projects and/or disposal wells in which the internal plastic coating of the body surfaces provides resistance to salt water corrosion.

10 The internal parts are also resistant to Sulfide embrittlement and corrosion. The temperature limitation are 0 to 250 F ( C to 121 C).LOW TEMPERATURE STANDARD trim GENERAL OILFIELDFor essentially non-corrosive liquids or gases. Typical examples are crude and refined oils, natural or refined gases and processed hydrocarbons. Typical uses are wellheads, manifolds, flowlines and other similar installations requiring a through conduit Valve . The temperature limitations are -50 to 180 F. (-45 C to 82 C).LOW TEMPERATURE SOUR GAS AND OILP rimarily for sour gas and oil where resistance to Hydrogen Sulphide embrittlement is required.