Some regulators include an integral filter upstream of the seat to help protect the seat. Regulators are built with a minimum of two relief devices that protect you and the equipment in the case of regulator creep or high-pressure gas being released into the regulator all at once. This decrease in outlet pressure is illustrated in the below flow curve (Figure 1). Do not use a regulator as a shut-off device. Do not use the regulator as a shut-off device, espe-cially in gas service. 3. 31 - What is meant by regulator creep? 31 - Once the torch is lit, why must the acetylene flow... Ch. Median response time is 34 minutes and may be longer for new subjects. ), Engineering Fundamentals: An Introduction to Engineering (MindTap Course List), Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List), Fundamentals of Chemical Engineering Thermodynamics (MindTap Course List), A+ Guide to Hardware (Standalone Book) (MindTap Course List), Welding: Principles and Applications (MindTap Course List), Find more solutions based on key concepts. creep noun. Allow the regulator to sit for 15 minutes and observe for any movements (pressure change) on the outlet needle gauge. 31 - What should be done with cylinders that have... Ch. Determine... Use the virtual work method to determine the vertical deflection at joint C of the truss shown in Figs. What are points? (When a regulator creeps up in pressure, the main issue is probably a damaged valve disk. 31 - Approximately how long would it take a 50/50... Ch. When a regulator is brand new it needs to get worn in, this is what we call the imbedding period of the regulator. 31 - What is the difference between a reverse flow... Ch. "agnthooziast"Please explain what you mean when you say "creep" as I have a crown coming. See more. what happens when we use technology and systems in ways beyond the original purpose Problem 8R from Chapter 30: 9. Who can repair regulators? The force in the cable at B is known to be 40... What type of axle housing resembles a banjo? 31 - Describe the difference between an argon cylinder... Ch. 31 - Why should coat hangers not be used as gas welding... Ch. External Resources Wikipedia: creep. Unscrew the Gas Regulator Control Knob until it goes loose and floppy. The regulator therefore cannot dictate single ways of working. It occurs when pressure escapes from the regulator body even though the poppet is closed. This makes it difficult to accurately and consistently adjust fuel pressure. A slow, permanent deformation in a metal part produced by a small, steady force below the elastic limit during a long period of time. (The extent to which regulators have been successful in de-regulating in areas where it is possible for them to do so is discussed in Chapter 7). Particles enters the process stream and compromise the seat and sealing surface. American Enterprise Institute 1789 Massachusetts Avenue, NW Washington, DC 20036 Main telephone: 202.862.5800 Main fax: 202.862.7177 2.4 The following are the results of a sieve analysis. flow rate through a pressure-reducing regulator. Creep is the time-dependent deformation of a material under load. Answered by Huma Air. Who can repair regulators? Additional regional languages may be available on your local Swagelok Sales and Service Center's websites. (very annoying…) February 24, 2018 at 11:20 am Link Precision Machining Technology (MindTap Course List), Automotive Technology: A Systems Approach (MindTap Course List), Mechanics of Materials (MindTap Course List), International Edition---engineering Mechanics: Statics, 4th Edition, Systems Analysis and Design (Shelly Cashman Series) (MindTap Course List), Principles of Information Systems (MindTap Course List), Principles of Information Security (MindTap Course List), Fundamentals of Geotechnical Engineering (MindTap Course List), Database Systems: Design, Implementation, & Management, Network+ Guide to Networks (MindTap Course List), Principles of Geotechnical Engineering (MindTap Course List), Steel Design (Activate Learning with these NEW titles from Engineering! Cause damage to the spring and diaphragm. 31 - Use Table 31-4 to determine which fuel gas has the... Ch. What is meant by regulator creep? This was however a purely regulator issue. More shooting and less refilling between the sweet spot. Your Authorized Swagelok Sales and Service Center, https://indiana.swagelok.com/en/Tech-Resources/Blog---Tips-and-News/Regulators---Managing-Creep, Please enter your email address and your username will be sent to you, Not registered? To take something that exists, old or new, and find a new use: not a bad concept on its own, but considered a big problem when that new use is to spy, commit fraud, or cause damage. 31 - Use Table 31-3 to determine which fuel gas... Ch. Creep is the time-dependent deformation of a material under load. Ch. Welding: Principles and Applicat, Welding CourseMate with eBook 1-Year Printed Access Card (7th Edition) Edit edition. The OP never mentioned what was going on with the regulator pre-rebuild, but I agree I would be disappointed also … When flow is initiated & increased through the regula-tor, for example, a change in delivery pressure (droop) occurs. The high flow of the regulator combined with the small indentations created from particles creates a leak path. Argon is a mixed male gas fitting, and CO2 is a female flat washer type fitting. Why must the pressure be released from the regulator when work is finished? How to prevent creep. In addition to seat contamination, our field engineers have reported other scenarios where the poppet is damaged, leading to creep. Of course the amount of creep would be related to the difference in pressures but the fact that there is any creep is due to a poor seal. 31 - How does the operation of a safety release valve... Ch. 11. The number 1 culprit is regulator seat contamination. Using Excel, create a table that shows the relationship between the units of power in watts and horsepower in t... Differentiate between static and dynamic webpages. The to... Repeat Exercise 4, but this time use the EXISTS operator in your answer. trained technicians. 31 - What elements make up all hydrocarbons? Some regulators include an integral filter upstream of the seat to help protect the seat. 10. 13. When you fire a shot, the pressure is at 150 again, but will creep up again instead of staying put at 150 bar. "High temperature" is a relative term dependent upon the materials involved. The pressure variation should be less than 1/4 scale on the Mpa gauge or 1 scale on the psi gauge. You are using terms which have no meaning. Reduced noise or "bark" at the muzzle. 31 - What properties should a good leak-detecting... Ch. A bar ABC of length L consists of two parts of equal lengths but different diameters. Definitions. If you don’t intend using your Gas Regulator for a Month or more, it’s a good idea to apply just a small amount of pressure to … P7.6 an... A structural tee bracket is attached to a column flange with six bolts as shown in Figure P7.9-2. *Response times vary by subject and question complexity. 31 - What is the major advantage of using propane or... Ch. Contact. Get the Swagelok Regulator Reference Guide ». If you are experiencing creep or have other questions about regulators: 1170 Western DriveIndianapolis, IN 46241, Blog - Tech Tips, Best Practices, & Case Studies, Connecting pressure regulator directly to supply source, Isolate the downstream side of your regulator by closing the on/off valve, Close the regulator by turning the adjustment knob to full close or counter-clockwise, Slowly open the gas supply valve to your regulator, When the regulator inlet gauge reaches full desired delivery pressure, shut-off the gas supply, Turn the regulator adjustment knob until the inlet delivery gauge reaches approximately half-scale, Close the regulator completely and note the reading on your gauge, Wait 15 minutes and check the pressure again, If any rise is detected, creep is occuring. I don't think reg creep - if you mean the first shot after a period of not-in-use goes low - has anything to do with reg pressure. 31 - How should the spark lighter be held to light a... Ch. To learn more about Regulators, Field Engineer, Eric Kayla discusses back-pressure regulator basics. 10. What do you think is the most important piece of advice Charlie gave Iris? This may be due to particulate contamination within the regulator nozzle. 31 - What is the difference between a backfire and a... Ch. Dead-head regulators can also cause "creep" which means the fuel pressure tends to slowly increase. Adjustments: Dead-head regulators can only be adjusted accurately when the fuel is flowing. All work on regulators must be done by properly trained repair technicians. 31 - Why must the pressure be released from a regulator... Ch. Learn what you can do to minimize many of these issues. 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