Valves Standards - Refining and Petrochem

United Valve

<<This document focuses on some of the important standards that affect steel, gate, globe and check valves in refineries and petrochemical installations. Some mention will also be made of other valve specifications, however specifications for control and relief valves will not be covered. Early in this century, when our nation's petrochemical and refining industries were in their infancy, pipe, valve and fitting (PVF) manufacturers as well as end-users had no standards to go by. The design and function of their products were dictated and affected by actual feedback from the end user - be it years of effective service life, catastrophic failure or incompatibility with similar products from other manufacturers. This lack of valve, flange & fitting interchangeability with other manufacturers products, resulted in two primary groups addressing the standardization issue.>>

Valves History

United Valve

<<Interesting valve catalog pages from decades ago.>>

Valve Owner’s Survival Kit

United Valve

<<As an engineer or technician you probably have to deal with valves everyday. Depending upon your job description, you may have to specify, maintain, install, operate or repair any number and type of valves. That is a lot of responsibility. And if you don’t know all the answers, you have to get some help. But whom do you ask? Where do you look? If you had a tough valve application questions 10-20 years ago, there was probably someone in your organization that held the unofficial title of ‘valve guru’, and he would have the answers based on his years of experience and focused interest. Sadly, the gold watches have taken their toll, and most of these guys have transitioned to the back nine or the back bay. So where do you turn? Fortunately there is a lot of good information out there. Hopefully this article will give you a few insider tips, as well as point you in the right informational direction.>>

Valves Overview

Robert-James Sales, Inc.

<<Excellent general information about valves: Valve Materials, Valve Bodies, End Connections, Flange Facings.>>

Car Seal Open, Car Seal Closed

Easilok (Smith Flow Control Ltd.)

<<Car Seal is a 'one-time-only' disposable device for locking/sealing equipment so that it cannot be operated.>>

Ceramic Valves: A Road Less Traveled

ChemicalProcessing.com

<<Some applications are ideally suited to ceramic valve use. However, ceramic materials offer unique benefits and drawbacks. This article discusses specific applications suited to ceramic valve use, and provides tips on proper installation, operation and maintenance.>>