When the heat is on, help your pressure transmitters keep their …
WEBOct 26, 2021 · In most cases, if the pipe is insulated, the transmitter should not be. Generally recommended impulse line sizing for lengths up to 50-ft is 1/4 in. to 3/8 in. for water/steam/dry gas and 1/2 in. to 1 in. for wet gases/oil/viscous and dirty liquids. Beyond 50 feet, increase impulse line size to 1/2 in. and 1 in. to 2 in., respectively.
The Safety Instrumented Function: An S-Word Worth Knowing
WEBSep 16, 2003 · The term "safety instrumented function" or SIF is becoming common in the world of safety instrumented systems (SISs).It is one of the increasing number of S-words--SIS, SIL, SRS, SLC, etc.--that are coming into our safety system terminology. The definition of a SIF as provided in IEC standard 61511, "Functional safety: Safety Instrumented Systems for the process industry sector," leaves a bit ...
How to size and select your next pressure relief valve
WEBNov 4, 2020 · The valve will close when the inlet flange pressure drops to 93-psig (100 – 7). Assuming inlet pressure losses of 3%, the system pressure at closing will be 96-psig (93 + 3). Now, assuming that inlet losses are 10-psig, the valve will close at 103-psig, which is 3-psig higher than the set pressure.
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Live from Automation Fair 2022 - Control Global
WEBNov 14, 2022 · The trends shaping tomorrow’s industrial facilities. Sustainability, digital transformation and flexible manufacturing will shape the process industries’ investments for many years to come, according to a panel of industry experts who kicked off the Process Solutions Users Group in this week’s run up to Automation Fair 2022. Read more. E ...
Top 50 Automation Companies of 2021: Green Muscles In
WEBNov. 8, 2022. The Top 50 global and North American automation suppliers fend off recession with sustainability and digitalization. Larry O'Brien, Chantal Polsonetti, Mike Guilfoyle. The automation marketplace proved its resilience again in 2021 and returned to pre-pandemic levels. Despite advances in project engineering that reduced cycle times ...
Bosch Rexroth opens plant in Mexico | Control Global
WEBJul 17, 2023 · Bosch Rexroth reported June 26 that it’s opening a new plant in Querétaro, Mexico, to shorten deliver routes and create more manufacturing capacity in North America for its mobile hydraulics and factory automation products. The company is investing about 160 million euros in the new location, which is expected to create about 900 jobs by ...
A straightforward explanation of feedforward control
WEBJun 9, 2020 · The ISA Mentor Program “Feedforward and Ratio Control” webinar including a Q&A addendum has an intensive steam system example and gives concepts of ratio control including automated adaptation of the ratio setpoint or bias to minimize the feedback correction. Slide 6 provides considerable understanding of why experts use feedforward summers or multipliers.
Signal filtering: Why and how - Control Global
WEBJul 24, 2019 · Greg McMillan. Filtering is the modification of a measured or calculated signal—using an algorithm and/or logic—to remove undesirable aspects of the signal before it is used in a calculation or a controller. Examples in control are the feedback (or controlled) variable to a PID or APC controller, or the input to a feedforward controller.
How history, principles and standards led to the safety PLC
WEBMay 17, 2016 · The SIL 1 safety system is the most commonly used, and provides risk reduction in the range from 10:1 to 100:1. In the process industries, the highest SIL rating normally used is SIL 3. SIL 4 is only used under very special circumstances such as nuclear plants. SIL levels 1 to 3 represent a coarse scale of safety performance for the SIS.