Monthly Archives: October 2014

Why Is My Valve Leaking? Types Of Valve Leakage and Symptoms

Posted on October 30, 2014 by admin

Valve leakage is a common occurrence in industrial settings. Even valves labeled as “zero leakage,” or “bubble tight,” are not necessarily completely leakage-free. This article explores the types and common causes of valve leakage, and then provides information about industry … Continue reading →

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API 527 Pressure Testing Standards Manual

Posted on October 28, 2014 by admin

API Standard 527, from the American Petroleum Institute, describes seat tightness testing and the maximum acceptable leakage rates for pressure relief valves. The current version of the standard was reaffirmed in 2007. Scope API 527 covers seat tightness testing of … Continue reading →

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ANSI/FCI Standard 70-2

Posted on October 14, 2014 by admin

ANSI/FCI Standard 70-2, from the American National Standards Institute and the Fluid Controls Institute, defines leakage classifications specifically for control valves. Scope ANSI/FCI 70-2 is the industry standard for control valve leakage. Classifications ANSI/FCI 70-2 defines six classifications of control … Continue reading →

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MSS Standard SP-61 – Leakage Allowance

Posted on October 13, 2014 by admin

MSS Standard SP-61, from the Manufacturers Standardization Society, establishes leakage allowances and provides guidance for testing valves typically used in “full open” and “full closed” service, such as check, isolation, and stop valves. It is not intended for use with … Continue reading →

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API 598 Testing Standards: Valve Leakage & Ratings

Posted on October 13, 2014 by admin

API Standard 598, from the American Petroleum Institute, provides industry standards for valve ratings and valve leakage. The standard is currently in the 9th edition, which was released in 2009. Scope API 598 covers the inspection, examination, and testing requirements for … Continue reading →

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Allied to Expand Minnesota Operations

Posted on October 7, 2014 by admin

Allied Valve is in the process of doubling the size of our location in Cannon Falls, Minnesota. This increase in our operations will not only bring new jobs to the area, but also expand our repair capabilities to support our customers … Continue reading →

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Allied Receives New VR Certification

Posted on October 7, 2014 by admin

Allied Valve’s branch in Bismarck, North Dakota, recently received a National Board VR Certificate of Authorization for the repair of all manufacturers’ pressure relief valves. We are now certified to repair and test air, liquid, and steam pressure relief valves in our North … Continue reading →

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Allied Opens New North Dakota Branch

Posted on October 7, 2014 by admin

Allied Valve recently opened a new branch in Bismarck, North Dakota, adding new jobs to the area’s economy and enabling us to provide local repair support to our North Dakota customers. Allied Valve’s shop and mobile units provide repair services … Continue reading →

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