Valve Receiving Instruction (23!11!2012)

8/10/2019 Valve Receiving Instruction (23!11!2012)

1/12

VALVE RECEIVING INSPECTION

I. Preparing necessary documents

Purchase Order + Change Order Technical Specifications Applicable Standard:

ASTM A216-2010 Standard Specification for Steel Castings, Carbon, Suitable forFusion Welding, for High-Temperature Service ( Applicable Standard )

ASTM A703-2010 Specification for Steel Castings, General Requirements , forPressure-Containing Parts

ASTM A182-2010 Standard Specification for Forged or Rolled Alloy-Steel PipeFlanges, Forged Fittings, and Valves and Parts for High-Temperature Service(Applicable Standard )

ASTM A961-2010 Standard Specification for Common Requirements for SteelFlanges, Forged Fittings, Valves, and Parts for Piping Applications

ASME B16.5 Pipe Flanges And Flanged Fittings ASME B16.34-2009 Valves Flanged, Threaded, and Welding End. ASME B16.10-2000 Face-to-face End-to-end Dimensions of Valve ASME B16.25-2003 Buttwelding Ends MSS SP-25-2008 Standard Marking System for Valves, Fittings, Flanges and Union MSS SP-80-1997 Bronze gate, globe, angle and check valves. ABS MODU Rule 2012 NACE MR0175-2001 API 598-2009 Valve Inspection and Testing API 600-2009 Steel Gate Valves Flanged and Butt-welding Ends, Bolted Bonnets And other reference standards.

Relevant Drawings Packing list/Delivery Order

II. Certificate Inspection1.Certificate of Origin:

Check if Origin of valve is complied with PO.2. Mill Test Certificates:

Check type of certificate as EN 10204. Type 3.1 is acceptable.

a. Body material : ASTM A216 Gr.WCB. Heat analysis: An analysis of each heat shall be made (ASTM A703). Chemical Requirements (ASTM A216):


2/12


3/12

Tension Test:

One tension test shall be made from each heat. Tensile Requirements (ASTM A216):

b. Stem material : ASTM A182 Gr. F6a Heat Treating Requirements (ASTM A182):

Note: B not applicable

Heat analysis: An analysis of each heat shall be made (ASTM A703).


4/12

Chemical Requirements (ASTM A182):Chemical Requirements, %

(ASTM A182 Gr.F6a)Carbon, max 0.15Manganese, max 1Phosphorus, max 1Sulfur, max 0.04Silicon, max 0.03

Nickel, max 0.5Chromium 11.5-13.5

Product Analysis (if required) tolerance:


5/12

Tensile Requirements: One tension test shall be made from each heat. Tensile Requirements (ASTM A182):

Note: A-Determined by the 0.2 % offset method. For ferritic steels only, the 0.5 % extension-under-load method may also be used.

Additional requirement for H 2S service (NACE MR0175): Carbon and low alloy steels are acceptable at 22 HRC maximum hardness provided

they contain less than 1 % nickel , are not free-machining steels and are used in one ofthe following heat-treatment conditions :a) hot-rolled (carbon steels only);

b) annealed;c) normalized;d) normalized and tempered;e) normalized, austenitized, quenched, and tempered;f) austenitized, quenched, and tempered.

In addition to the restrictions of above, some carbon steels are acceptable subject to therevised or additional restrictions as follows.a) Forgings produced in accordance with ASTM A105 are acceptable if the hardness does notexceed 187 HBW.

b) Wrought pipe fittings to ASTM A234 grades WPB and WPC are acceptable if the hardnessdoes not exceed 197 HBW.

Reference for unit conversion: ASTM E140 - Standard Hardness Conversion Supplementary Requirements

3. Hydrostatic test certificate: Depending on which standard the valve complied with: ASME B16.34/API

598/Applicable standard. ASME B16.34:

Shell test pressure: no less than 1.5 times the 100 oF pressure rating(**), rounded off to thenext higher 1 bar (25 psi), test duration shall be not less than the following:

Closure test pressure: no less than 1.1 times 100 oF pressure rating, rounded off to the nexthigher 1 bar (25 psi). Pneumatic test at gage pressure not less than 5.5 bar (80 psi) can becarried out to substitute for hydrostatic test for valve sizes and pressure class as follows:

Test duration shall be not less than the following:


6/12

(**): Determine pressure rating of valve: look up table 2 Rating for Groups Material API 598:


7/12


8/12

MSS SP-80 (for bronze valve):


9/12

Applicable standard: check in the standard

4. ABS certificate: This is additional requirement for satisfying ABS Surveyor. All valves intended for installation on the side shell at or below the deepest load

waterline, including those at the sea chests, are to be hydrostatically tested in the presenceof the ABS Surveyor, before installation, to a pressure of at least 5 bar (5.1 kgf/cm 2, 72.5

psi) ( 2010 Steel vessels Rules 4-6-2/7.3.2).

Test pressure shall conform to API 598/ASME B16.34/Applicable standard Visual and hydrostatic test of valves shall be inspected by ABS Surveyor. Valve that satisfied ABS Surveyor shall be mark AB on body.

5. Certificate of Warranty

III. On site inspection:1. Type inspection:

Check the compliance of valve with the Description in Technical Specifications Valve Type : Ball valve, Lug Type Butterfly valve, Wafer check valve, End Connection: Flanged, Threaded, WeldNeck, Socketwelded, Actuator : gear operator, handwheel, Thread type (if any): BSPT (British Standard Pipe Thread), NPT (National Pipe

Thread Taper) , Flange type (if any): Raise Face, Flat Face, Ring Type Joint, .

2. Marking on body (ASME B16.34 and MSS SP-25): Manufacturers name or Trademark Material identification

Material marking is not required on ASTM B61, B62, B584 alloys, C 83800 and C 84400,cast copper alloy threaded or solder-joint or wrought copper solder-joint valves (MSS SP-25).

With ASTM A126 class B or C are not usually marked with material designation symbols. Malleable iron body castings will be marked with MI . Ductile iron valves shall be marked with the word Ductile or DI. At the manufacturersoption, the ASTM number or grade may be added.

Heat number (identical with Heat No. in Mill certificate) ANSI Class Nominal Pipe Size (NPS) or Diameter Nominal (DN) Flow or pressure indication shall be marked on unidirectional valves. (arrows or words

inlet/outlet/high pressure side ) Thread identification, when required (threaded end valves only)


10/12

All connecting end flanges having standard ring-joint grooves manufactured inaccordance with API 6A shall be marked with the letter "R" and the corresponding ringgroove number (MSS SP-25)

ABS marking AB (if valves were certified by ABS)3. Marking on trim parts (if practicable)

Trim identification marking is required on the identification plate for all flanged end and butt welding end steel or flanged end ductile iron body valves having trim material whichis different than the body material.(MSS SP-25)

Material identification Heat number (identical with Heat No. in Mill certificate) NPS or DN

3. Identification Plate (ASME B16.34 and MSS SP-25): Manufacturers name or Trademark Body and Trim (Stem, Disc, Seat, Plug, Ball, Gate , ) Material Identification

ANSI Class Working Temperature/ Pressure ; service limitations. NPS or DN Applicable Standard

4. Tag name (if any)5. Dimension + Quantity

IV. Self-done testing:

Chemical Analysis, Tensile Test, Hardness test have to be done at manufacturers plant. Self-doing these tests for valve s materials are not practicable.


11/12

Pressure test (API 598): Backseat test:

The backseat test is required for all valves, except for bellows seal valves, that havethe backseat feature and shall be performed by applying pressure inside the assembledvalve with the valve ends closed, the valve fully open, and the packing gland loose or

packing not installed. If the backseat test is performed after the shell test, the packingshall be installed and/or packing glands retightened after the backseat test.For valves DN 100 (4 in. NPS) and smaller, the backseat test may be combined withthe shell test when volumetric devices are used to monitor leakage from the shell and

backseat. When tested by this method, the packing shall be loose. The manufacturershall be responsible for demonstrating that the packing will not leak at the valvesrated pressure at 38 oC (100 oF).

Shell test:The shell test shall be made by applying the pressure inside the assembled valve withthe valve ends closed, the valve partially open, and any packing gland tight enough tomaintain the test pressure, thereby, except for bellows seal valves, testing the stuffing

box. Low-pressure Closure Test

The low-pressure closure test shall be performed with the seat sealing surfaceinterface clean and free from oil, grease, and sealant. If necessary to prevent galling,the sealing surfaces may be coated with a film of oil that is not heavier than kerosene.This requirement does not apply to a valve that uses a lubricant as its primary seal(e.g. lubricated plug valves).Any leakage at the seat sealing surface interface, behind the seat ring, or through thedisk on the open side of the valve shall be detected when bubbles are observedcoming from the closure (disk, seat, and seat ring), covered with water.

High-pressure Closure TestThe procedure for the high-pressure closure test shall be the same as the procedure for

the low-pressure closure test except that, in the case of a liquid test, leakage shall bedetected when drops.


12/12

Instruction ny c th dng :

Kim tra Steel Gate, Glove, Butterfly, Check, Ball, Knife Valve; Bronzegate, globe, check valves.

a ra hng dn t hydro-test.

Documents

Valve Receiving Instruction (23!11!2012)