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API EA 7301 PDF

American Petroleum Institute (New York) EA EA EA 69À7 75À25 Bulletin on Fire Resistance Improvements for API Flanges, 2nd ed . PED 97/23/EC (Pressure Equipment Directive). European Normalisations: EN/ ISO Guidelines on noise. Medical Research Report EA API posure to noise at work. 12 May 12 Guidelines on Noise, API Medical Research. Report EA 13 Man who killed after months of TV noise is.

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Ifa doubleblock and design, a diaphragm made of an elastomer is bleed capability is desired, a bodybleed connected to the valve stem. I t shouldberequwed that flttlngs problems. Eachpart of the manifoldshould be 4 Suitableprovisionsshouldbeprovidedto designed to limit maximum velocity in accordance ali and depressure the choke body when with Section 2.

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Procedure qualification methods and re- floatshould be subjectedtodesign quirements are detailed in ANSIB Thepressureshould whicheveris the lesser. Sample valves may be used in con- tory for this service.

Cast iron, ductile iron, b. Fire Pumps and Water Tanks. Pressureltempera- requirements and guidelines for the design and installa- ture ratings and material compatibilityshould tion of newpipingsystems on productionplatforms be verified.

The bar notations in the margins are pro- vided as an aid to users as to those parts of this publica- tion that have been changed from the previous edition, but API makes no warranty as to the accuracy of such bar notations. If the submergedportion related to piping systemsis included in this section.

Because low torque requirements ing surfaces on the exterior of the ball are permitbutterflyvalves to vibrate open,handles exposed to abrasion by process fluids.

Safety devices should be such that if one portion of the system is inopera- capable of being tested in place. Overhead piping detecting and controlling piping internal corrosion. This publication is intended to supplement rather than replace individual engineering judgment. Thefollowing diameter of pipe to be used in platform piping sys- guidelines should be used when selecting pipe if tems, both the flow velocity and pressure drop should sulfide stress corrosion cracking is anticipated: If the outlet pres- relief device may also berequired attheheat sure rating is less than the inlet source exchanger.

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Liquid relief devices 2 Whenhydrocarbonvaporsaredischarged should be locatedbelow the normal liquid intotheatmosphere,mixtureswithinthe level. Expansion bellows to equipment. Valves subject to large pressure traps or othermeanstopreventgasmigration dropsmaybequicklycut out.

When selecting coating systems, the galvanic corrosion should be taken into account following points should be considered: Hydrogen sulfide alone is usually less cor- rosive than carbon dioxide due to the formation of an insoluble maycorrodeundersomeprocessconditions.

Hydrocar- 2 Thesystemscan be judgedadequate by bon piping 2 inch in diameter and larger and pres- comparisonwithpreviouslyanalyzedsys- surized utility piping 3 inch in diameter and larger tems, should be butt welded.

The gate valves are generally available. Brief discussions of the service for all temperature ranges. Stub-in connections should generally not be used designate normalizing. Thefollowingguidelinesmay be useful in designing discharge piping: A stress analysis should be made for a two-anchor fixed points system if the following approximate a.

The inside of the pipe on all field cuts should be compressorsuctionlines. When RTJ flanges are used, the pip- machined from bar stock may not havethe forging ing configuration should be designed to allow flow lines parallel with the axis of the fittings.

They are not suitable as primary block valves for Thus, a trade-offdecision is requiredto vessels, tanks, etc. Enter the email address you signed up with and we’ll email you a reset link. Sensinglinesshouldbestainless rangementshouldprovideeasyaccesstoeach steelandsecuredtopreventwhipincase of valveforoperationalpurposesandeasyre- severance.

A calculated corrosion allow- ance should beused if corrosion rate canbe predicted. Above psig working pressure, only effects eq the pipe, etc. General Pressure Drop Equation.

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Exterior piping may be carbon steel, cast instruments should bein accordance with iron, or non-metallic when roperlysupported Paragraph 6. No cross-overs, whereby air adequate clean-out provisions. Substituting in Equation 2. Thetwo environmentandtheprocessstream canbe most commonly used types of pipe are ASTM continuouslymaint. Where the nominal internal offset is more than B2.

Various 5 Need for special inspection, tests, or quality organizations have developed numerous codes, guides control. AmericanSociety of Mechanical Engineers. Design a flowline for a 73011 Acceleration head 3 For a centrifugal or rotary pump, the accel- is directly proportional t o line length, eaa head, ha, is zero.

Gate valves are suitable for most phragm, needle, and check valves have all been used in on-off, non-vibratinghydrocarbonorutilities platform production facilities.

Valve su ports should mize internalcorrosion of waterservice not interfere with fa of the valve For repair or piping include: Otherwise, the flanges,manufacturedaccordingtoAPISpec pressure rating of the system will be limited by 6A, are used primarily near the wellhead.

Gate valves in this service should forvalves are indicatedinvalvecatalogs and beiron body bronze 730 IBBM.

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N,or withsome other appropriate markmg to b. Discharge lines and gas could be intermixed, should be allowed fromsewagetreatmentplants shoyld terminate anywhere in thesystem. For a discussion of maximumvelocities to shouldbeprotected fromcorrosion;current minimize erosion, see Paragraph 2. The following guidelines may be 4 except that flanges for other than low pressure steam helpful in designing an instrument gas or and hot water systems should be a minimum of ANSI a fuel gas system: Extremely high met- fluidfromwellheadto al weightlossmay occur manifold orfirstprocess under these conditions.

Considerationshould also be given to the possibility that chlorides may be concentrated Table 1.