What are Actuators?

What are actuators?

What are actuators and how do they work? There are four types of actuators that are used today.  The most commonly used in this industry are the Pneumatic and Hydraulic actuator.

hydraulic actuator consist of a cylinder or fluid motor that uses hydraulic power to facilitate mechanical operation. The mechanical motion gives an output in terms of linear, rotary or oscillatory motion. Because liquid cannot be compressed, a hydraulic actuator can exert considerable force, but is limited in acceleration and speed.

pneumatic actuator converts energy formed by compressed air at high pressure into either linear or rotary motion. Pneumatic energy is desirable for main engine controls because it can quickly respond in starting and stopping as the power source does not need to be stored in reserve for operation.

You may wonder what this means in English? Well, in simpler terms; the main difference between the two is that pneumatic actuators use air to transmit force while a hydraulic actuator will use liquid to transmit force. Depending on the media of your project will depend on what kind of actuator you will need.

This picture shows an example of what a pneumatic actuator might look like with a ball valve. A Pneumatic scotch yoke Automation package along with our ANSI 1500 Trunnion Ball Valve going for Natural gas service.

Trunnion Ball Valves

Global Valve and Controls Media Containment Bonnet

Global Valve and Controls Media Containment Bonnet

Global Valve and Controls strive to provide earth friendly options, especially the containment of fugitive emissions being released in the earth’s atmosphere.  Over 44% of a plant’s expense, is due to leaking valves and the replacement of them because of old technology.   GVC has a new technology to lower this expense by a substanial decreased cost of ownership.

GVC has been manufacturing an accessory, the Media Containment Bonnet, since 2004.  The MCB is unique because of the installation, maintenace and application, as an option to our ball valves. The following highlighted reasons to incluse this accessory for $300 – $500.00 at time of purchase of the ball valve series are as follows:

  • Increases the longevity of the ball valve.  A standard increased life expectancy of a leaking ball valve, with the GVC MCB application, is an extra three years.
  • No down time due to the shut down of a plant or pipeline because of  the removal of a leaking valve. Within 10 mins, the MCB is installed with no tools other than a wrench is necessary.

If you are  interested in an instructional video or a lunch and learn instructional demonstration, please call Global Valve and Controls at 1-866-965-8GVC (482) or email Lparker@gvcintl.com.

Media Containment Bonnet

http://gvcintl.com/products_valve_flow_control.html

Forged Steel Valves

Forged Steel Valves

Forged steel valves are used in Oil Refining and other industrial applications where forged steel material is required. Higher pressures and temperatures are usually involved and the line size is generally under the size of “2”. In other conditions, forged steel valves might be a good choice for better performance, such as system requirements for socket-weld piping and compatibility of media. Forged check valves, forged gate valves, forged globe valves are a few of the different types and depending what the media is, depends on which one is used.

GATE VALVES are used for on-off operation on hydrocarbon , general process, and utility service for all temperature ranges.

Gate Valves

 

 

 

 

 

 

GLOBE VALVES are used for flow regulation or as a block valve where high resistance to flow is not a disadvantage and a positive closing action is required.

Globe Valves

 

 

 

 

 

 

 

CHECK VALVES are required to permit forward flow and prevent reverse flow. this is achieved through linear or rotary ( angular) motion of a closure member which is kept open by flowing fluid.
When the flow is reduced towards zero, or reversed, the closure member is moved against its seat by forces due to gravity, supplementary springs and back pressure.

Check Valves

http://www.controlfluid.com/en_steel_forged.htm

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20 RP VS 20 FP

Have you ever wondered what the difference of a 20 Reduced Port Ball Valve and a 20 Full Port Ball Valve?What do you think the differences are after reviewing the chart above?

Observers below:

–   Operations Director states, “Well the cost is a big one, however, the CV Factor changes. Although, the port also changes, but a Reduced Port constricts the flow while the Full Port allows the flow to just flow.”

–   Vice President of Sales & Marketing states, “One is full port and the other is reduced; however, a full port sizes go up to ¾”

–   Account Executive-Inside Sales Account Manager states, “One is full port and the other is standard port, however 20RP’s are considered full port up to ¾” (Water, Oil & Gas Applications. And 20FP’s are a seal welded design.”

–   Account Executive-Inside Sales Account Manager states, “20 RP’s are considered full port up to 3/4”

 

The actual differences are: The CV Factor, how one port functions as compared to the other port, Full Port are a Seal Welded Design, Weight, Length, as well as Height

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Global Valve and Controls has become one of the newest organizational members of ASTM

ASTM International logo
Image via Wikipedia

Created in 1898, ASTM International has become one of the largest voluntary standards developing, not-for-profit organizations in the world. ASTM provides a forum for the development and publication of voluntary consensus standards for materials, products, systems, and services from its members. The members of ASTM represent producers, users, consumers, government, and academia from over 100 countries and are responsible for the development of technical documents that are the basis for manufacturing, management, procurement, codes, and regulations.

What is a standard?

As used in ASTM, a standard is a document that has been developed and established within the consensus principles of the organization and which meets the requirements of ASTM procedures and regulations. Full consensus standards are developed with the participation of all parties who have a stake in the standards’ development and/or use.

How and where are ASTM standards used?

ASTM standards are used by individuals, companies, and agencies around the world. Purchasers and sellers incorporate standards into contracts; scientists and engineers use them in their laboratories and offices; architects and designers use them in their plans; government agencies around the world reference them in codes, regulations, and laws; and many others refer to them for guidance.

For more information on ASTM, go to www.gvcintl.com and click on the ASTM hyperlink.

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Making Use of Steel Ball Valves

A sample of duplex ball valves.
Image via Wikipedia

Making Use of Steel Ball Valves

When it comes to infrastructure, we can really name a lot of companies which are getting into it and one of the most in demand services anywhere today is plumbing. Without plumbing, people would always have a ruin day due to an inadequacy of water. More than that, when we are also going to talk about plumbing, we also need to consider the things that they mostly use and one of which are those valves that are useful in order to make a job successful. If you are among the plumbers, you will surely look for the most durable and top-quality kind of valve, and in such case, the use of steel ball valves should be taken account.

There are now plenty of manufacturing companies who had study hard in order to make the best valve to use in any sorts of plumbing activity and good thing was, Global Valve and Controls had able to establish the perfect valve to be used in any sorts of plumbing constructions. Steel ball valves are among their recent valves being made which has been establish through the finest technological method and had able to pass various evaluations from experts as well. With these steel ball valves, you can really have the guarantee that this would last long despite the fact that it is being use constantly.

Global Valve and Controls had undergone careful study in order to perfectly design the right valves to be use in all sorts of plumbing construction. GVC’s have their own technical support team who see to it that all steel ball valves are of top quality and will even provide you with best function. You can now start buying these steel ball valves since these are now available in all markets in your place.

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Global Valve and Controls strive to provide earth friendly options

Ball for a ball valve.
Image via Wikipedia

Global Valve and Controls strive to provide earth friendly options, especially the containment of fugitive emissions being released in the earth’s atmosphere.  Over 44% of a plant’s expense, is due to leaking valves and the replacement of them because of old technology, such as the Chevron design.  GVC has a new technology to lower this expense by a substanial decreased cost of ownership.

GVC has been manufacturing an accessory, the Media Containment Bonnet, since 2004.  The MCB is unique because of the installation, maintenace and application, as an option to our ball valves. The following highlighted reasons to incluse this accessory for $300 – $500.00 at time of purchase of the ball valve series are as follows:
  • Increases the longevity of the ball valve.  A standard increased life expectancy of a leaking ball valve, with the GVC MCB application, is an extra three years.
  • No down time due to the shut down of a plant or pipeline because of  the removal of a leaking valve. Within 10 mins, the MCB is installed with no tools other than a wrench is necessary.
If you are a distributor or end-user interested in an instructional video or a lunch and learn instructional demonstration, please call Global Valve and Controls at 1-866-965-8GVC (482) or email Lparker@gvcintl.com.
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