... Commercial Wall Hydrant- The PRIER C-634 provides a year round source of water to areas of structures that are subject to freezing temperatures. The hydrant ...

The compressed spring and diaphragm are the two opposing forces and the plug acts as the balance between the two. The set screw is used to show the regulator how much pressure we want by turning it to compress the spring. A compressed spring generates a force causing it to push down. This opens the plug and results in more flow (of water, air, or other media).

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Pressure reducing regulators monitor the downstream pressure and do not need any external power or air source to operate. Instead, they work by force balance. There are 4 main parts to a pressure regulator:

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Range: 8-1000L · Maximum pressure: 600kPa · Maximum operating temperature 70°C · Suitable for outdoor use · Threaded connections · Non-replaceable diaphragm · Pre-set ...

Designed for hydronic heating systems or potable hot water systems, the tank uses compressed air to maintain system pressures by accepting and expelling the ...

Authors: Sean Cornell, Associate Professor Shippensburg University of Pennsylvania, Duncan Fitzgerald, Professor Boston University, Nathan Frey, Research Assistant The Pennsylvania State University, Ioannis Georgiou, Associate Professor, University of New Orleans, Kevin C. Hanegan, Research Assistant University of New Orleans, Li-San Hung, Research Assistant The Pennsylvania State University, Mark Kulp, Associate Professor University of New Orleans, Diane Maygarden, Research Associate University of New Orleans, David Retchless, Research Assistant The Pennsylvania State University, and Brent Yarnal, Professor The Pennsylvania State University, Tim Bralower, Professor The Pennsylvania State University.

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Team Lead: Tim Bralower, Professor, The Pennsylvania State University. Learning Designer: April Millet, The Pennsylvania State University

How you choose a pressure reducing regulator depends on why you need it. There are five things you need to have to choose the right pressure reducing regulator with the right flow coefficient (Cv):

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If there is a change in the controlled pressure, the diaphragm will be forced to move. For example, the pilot plug will allow upstream gas to flow under the diaphragm where the pressure is controlled by the position of the plunger. If any pressure exceeds your set point, the pressure below the diaphragm will be pushed up, closing off the pilot plug.

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After you have correctly sized your regulator, you’ll then need to know the line size, material, type of connection, whether it’s a shutoff or not, and if it’s either direct or pilot-operated.

Geoscientists and physical oceanographers are developing mathematical models to explain and predict the impact of even small changes in ocean temperature on sea level. In the image above, you will notice that different ocean layers contribute to rise at different rates. Some scientists believe that the deep ocean layers, as thick and deep as they are, will volumetrically produce even higher sea levels if they warm in the absence of polar glaciers. Better empirical modeling will continue to be refined so that we will have a better sense of the impact that this phenomenon has on overall sea level change.

We have a variety of pressure reducing regulators available, including self-operated, high flow, differential, vacuum, air-loaded and pilot-operated. Many of our pressure reducing valves have the sliding gate technology which offers precise control in a variety of applications.

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Jordan Valve has a large line of pressure reducing regulators to meet many different specifications and applications, from self-operated to pilot-operated. The sliding gate pressure reducing regulators achieve levels of performance, reliability and accuracy that are not found in other valve designs. Request a quote today.

Seemingly small temperature changes (even as small as 0.1 degrees Celsius), when extrapolated over the entire globe, can produce a significant sea level rise effect when considered over time. On an annual basis, the impact might not seem like a lot (just a few mm./yr. on average), but over a decade or two, this adds up to a substantial change. As such, most scientists believe that recent sea level change may be strongly tied to increased warming of the atmosphere, which in turn warms the ocean. Given this fact, many scientists are alarmed by the additive impact of melting of glaciers, which ultimately act as the cooling mechanism for the deep sea. If glaciers are not present, the ocean's ability to overturn will be impaired and, it is argued, this can cause more rapid hyper-warming of the ocean's waters leading to even higher sea levels. This is an example of a positive feedback mechanism.

For assistance choosing the right pressure reducing regulator for your application, use our sizing software program or contact your local representative.

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Direct Operated Tank Padding Regulator or Gas Pressure Reducing Regulator for Low Pressures 3/4" - 1" (DN20 - DN25); Balanced Plug - Good for High Inlet Pressures

Another substantial mechanism for changing sea level is related to thermal expansion/contraction properties of water molecules themselves. In our high school science classes, we all learned that as the temperature of different substances increases, the molecules within those substances become more "excited". These excited molecules that bump into each other more frequently take up more space, so the warmer substance will expand in volume and will have a lower density. The behavior of water molecules follows this same pattern. When liquid saltwater warms up, its density (mass per unit volume) decreases as the volume increases. As temperatures of the ocean increases, the volume of seawater increases and can produce a higher sea level. Conversely, as seawater cools down, the density increases as the volume decreases. This produces lower sea levels.

However, the most important things you’ll need to know in selecting a regulator for a specific application are what the flowing media is and what the desired flow rate is, and what the inlet and outlet pressures will be.

Pressure reducing regulators are used to maintain a set downstream pressure point by reducing the supply, also known as inlet pressure, of a fluid or gas to lower the outlet pressure.

If you’re not sure what size of pressure reducing valve you need, don’t hesitate to reach out to our experts for help. We also have sizing software available to help with sizing a regulator.

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Our sliding gate pressure reducing regulators are ideal for steam, liquid and gas media applications. However, we also see use cases for the following applications:

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