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I/ Background: The set pressure of a PRV is determined by the system design requirements, the operating modes and various relevant. Home; API Std Preview Secure PDF. ℹ Add to Cart. Printed Edition + PDF; Immediate download; $; Add to Cart. Download API Seat Tightness of Pressure Relief Valves DOWNLOAD PDF - MB. Share Embed Donate. Report this link.

Api 527 Pdf

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API STANDARD THIRD EDITION, JULY American. Petroleum. Institute. Reproduced By GLOBAL. = - ENGINEERING DOCUMENTS. With The. API publications necessarily address problems of a general nature. With respect to particular .. API Standard , Seat Tightness of Pressure Relief Valves. APIpdf - Download as PDF File .pdf), Text File .txt) or read online.

This preview shows page 1 - 14 out of 14 pages. Subscribe to view the full document. Unformatted text preview: With respect to particular ciruln'ismnces. API publlwtions may be used by anyone desiring to do Every elibrt has been made by the Institute to assure the accuracy and reliability of the data contained in them; however: API publications are published to facilitate the broad availability or prove".

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Api-527-2014.pdf - Seat Tightness of Pressure Relief Valves...

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DC Suggested revisions are invited and should be submitted to the Standards Department. Testing with Air Test Apparatus. Amphnae Criteria Testing wilh Steam Acceptance criteria.

Testing with Air—Another Method. Type of Valve to be Tested Annapunoe Criteria Table 1 Muim um Seat Leakage Rate: If greater seat lightness is required.

The test medium for determining the east tightness—air.

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For duel-eerviii valves, the test medium—air. To ensure safety. Caution—When looking for leakage.


Leakage shall be measured using a tube with an outside diameter of 7. The tube and shall be cut square and smooth. The tube opening shell be The tube shall be per-pend iwlar tothe surface of the water.

API 527-2014 Seat Tightness of Pressure Relief Valves

Ranged or heeded outlet adapter for Erasure relief valve Tube with outside diameter of 73 mm Eire In. All openings—including but not Iimire'd In caps. See Figure 2 for an example of a devloe to relieve body pressure in case the valve accidentally pope. The maximum acceptable leakage rates are defined for pressure relief valves with set pressures from kPa gauge 15 psig to 41, kPa gauge psig.

If greater seat tightness is required, the purchaser shall specify it in the purchase order. The test medium for determining the seat tightness—air, steam, or water—shall be the same as that used for determining the set pressure of the valve.

For dual-service valves, the test medium—air, steam, or water—shall be the same as the primary relieving medium.

To ensure safety, the procedures outlined in this standard shall be performed by persons experienced in the use and functions of pressure relief valves. Other Browser: Other 0. Direct Navigation IP: Not Logged In Member?: NO Cart:

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