Category Archives: API 6D Valves

What makes GVCINTl the preferred Valve Manufacturer?

Have you heard the saying, “you pay for what you get”? Well, when it comes to buying a valve, quality does matter. Imagine purchasing a valve for a pipeline project and of course you as the buyer would like to save the company money, unfortunately not all valves are created equal. We as a valve manufacturer provide only the highest quality material for our valves which means not only are you provided with the best quality but also the best price for all your flow control products.

What makes GVC the best valve manufacture? Hard work goes into making a valve, and it is not just the high-quality materials but also the dedication and devotion of our employees. All our valves are inspected not once but three times before sending it out. Once you purchase a valve from us, our valve technicians provide 24 hours support every step of the way. It is always a good idea to purchase API 6D quality products because of the high standards to reduce emissions and other environmental factors. One thing to remember is when purchasing a GVC valve, you are guaranteed that the products you purchase will last longer in severe and critical applications. GVC valves will exceed all your expectations. Go ahead and take the GVC Challenge.

Please see our website for more information on API 6D certification.

 

 

Valve Traceability

If you have ever purchased a valve from us then you already know we don’t just sell you a valve but provide you life long service and 24/7 technical support if any issues arise. All our valves 2″ and up come with valve traceability. This ensures us that we are able to track the valve where ever it may go. The valves have a special serial numbers that allows us to trace them back to the manufacturer date and all components that are used. A few questions that we get from our clients regarding valve traceability are;

Do you have to trace the valves often?

Not very often. Sometimes a customer will need parts and will send the serial number or they might have lost the Material Test Results and will send the serial number which allows us to look it up.

Why is it important to be able to trace a valve? 

It is important so you can trace the history of the valve from the time it was manufactured and all the components to when it was shipped, received and sold. We can trace the whole history. If we did not have valve traceability then It would be impossible to know whether the valves are manufacturerd to the right standard and are able to sustain the pressure that is needed.

As you may know the valves industry is becoming more and more competitive and having a valve traceability system is one way we stand out as a manufacturer. At Global Valve and Controls, our valves of course are NOT from China which is important to note as there are many companies that have their products shipped from the Middle East, India and China and there is no way to track where the parts are coming from. This is why we make sure to be one of the few valve manufactures that provide this service and be API 6D certified. Please see our website for certification https://www.globalvalveandcontrols.com/certifications.html

 

Global Valve and Controls serial numbers on the valves

Serial numbers ensures us we are able to trace the valves

Gearbox installation on a Trunnion Ball Valve

Gearbox installation on a Trunnion Ball Valve

Installing a gear box on a Trunnion ball valve is no easy task. In fact, if you want to learn be ready to get your hands messy. It is recommended to buy some gloves that are suitable to wear for the lubrication process. Remember to always consult the manufacturer first.

Start by generously lubricating the stem of the valve. We use an industrial high-performance grease that works with the same temperature ratings as our valve.

Apply grease to the stem, stem key, and dowel pin and insert the stem key into the stem slot. The dowel pin will be inserted through the stem key and into the stem to hold the stem key in place within the stem slot.

Apply the grease to four (4) of the bolts and insert them into the mounting pad in the holes closest to the end flanges. This is necessary due to having less clearance to insert these four (4) bolts after the gear is installed due to the curvature of the valve body.

Once it is generously lubricated the gearbox should fit easily over the stem and stem key. Inside the gear housing there is a slot that fits the assembled stem and stem key. You need to ensure proper alignment of the slot in the gear housing with the stem and stem key. The travel stops may need to be loosened and the wheel turned in order to properly align the bolt-holes in the bottom of the gear housing with the bolt-holes through the mounting pad.

Next, insert the other four (4) bolts through the bottom of the mounting pad and thread them into the bottom of the gearbox, also threading in the four (4) bolts that were inserted into the mounting pad at an earlier stage. Next, add the washers and nuts to the bolts and tighten them down. Once you have installed the handwheel be sure to operate the valve one full cycle and adjust the travel stops accordingly to the open and closed positions. This means turning the handwheel to go from its fully open position to fully closed position, adjust the travel stop for the closed position. Then turn the handwheel back the other way to go from its fully closed position to fully open position, adjust the travel stop for the open position.

 

Check out our video on youtube as we show you how to install a gearbox by our valve experts. Contact us with any questions 281-463-1474 or Info@gvcintl.com 

 

Source: Global Valve and Controls, Houston TX

Hydrostatic shell testing

Many times a client of ours will ask us to do additional testing to the valve/s before they purchase. One of the tests that is asked for is called hydrostatic shell testing and because we have our certification for API 6D such a test like this is no problem at all. Hydrostatic shell testing means that the shell, or the body of the valve will go through a pressure test. All valves MUST be hydrostatic ( WATER) shell tested to verify the valve can handle the maximum pressure it was built and designed for.  What you see in the video below is a hydrostatic test pressure, usually 1½ times the rated working pressure is applied to an assembled valve to verify the structural integrity of the pressure containing parts. Pipeline valves commonly go through these types of tests to ensure there are no leaks. Check out our Youtube page and you will see one of our API 6D, Trunnion ball valves going though the hydrostatic test and the test will continue for 4 hours. We stride for customer satisfaction and do not have any complaints. Contact us for more info www.gvcintl.com

 

The Through Conduit Gate Valve

One of our newest valves on the market is the Through conduit gate valve. Sometimes also referred to as Thru conduit. It is used for pipe pigging, but can be found more in “pipelines of subterranean heat steam, petroleum, natural gas production, transmission, and storage” The GVC Thru conduit gate valve is API 6D certified and has Double Block and Bleed capabilities. We offer these valves in 2” all the way through 36”. Many companies in the petrochemical industry prefer to use the Thru conduit gate valves as the valves are more suitable to corrosive fluids versus their ball valve counterpart. This valve is great for long distance transportation service of crude oil and natural gas.

https://www.globalvalveandcontrols.com/files/000%20GVC%20SERIES%20EXPG-SBG%20%20Secured%20o.pdf

Thru Conduit Gate Valves, Through Conduit Gate Valves

 

 

 

 

Double Block and Bleed Valves

The Double Block and Bleed is a special feature that you can find among our Trunnion Ball Valves and Expanding Gate Valves. The idea of having DBB was first created by engineers. According our our ValveMD, “The DBB feature of the valve or valves is the ability to segregate two pressure sources and to bleed/vent pressure in the void between the two sealing elements (blocks). The bleed may be in the pipework/pipeline when two valves are used, or in the valve body between the two seats when the valve has the Double Block and Bleed (DBB) feature.”

You may find Double Block and Bleed valves in many types of industries, including; Gas and Liquid pipelines, Production, Processing Oil and Gas, and more. This feature ensures zero leakage which is why they are popular in pipelines. 

Do not be confused with Double Isolation Bleed which according to API means, “API 6D defines a Double Isolation & Bleed Valve (DIB) as a “single valve with two seating surfaces, each of which, in the closed position, provides a seal against pressure from a single source, with a means of venting/bleeding the cavity between the seating surfaces. The note adds that this feature can be provided in one or in both directions.”

For any questions regarding our Double Block and Bleed Valves, be sure to reach out to one of team members. 

Double Block and Bleed

3″ ANSI 900 API 6D Trunnion Ball Valves, F316 Stainless Steel for CO2 Applications

What does it mean to be API certified?

When a valve manufacturer is API 6D certified it means that they have a certificate that certifies their valves are tested to API standards. There are different specifications of API. For instance, API 6D is a specification for pipeline valves. “API 6D specifies requirements and gives recommendations for the design, manufacturing, testing and documentation of ball, check, and gate valves for application in pipeline systems.” 

Not only are our Trunnion ball valves API 6D certified but we also carry the API Q1 specification. This allows us to mark our valves. When you see this mark you will immediately know that GVC valves have been manufactured in a quality management system. 

What does it mean to be API 6D and API Q1 certified? Global Valve and Controls is recognized by API and other industries for our product quality. It also means that every single one of our products are marked therefore if  any future questions arise of a valve we will know exactly which valve it is.

What does it mean to our clients? Proof that our products are API as well as meet the specifications and our quality is consistent. Our clients are also aware that we have a management system in place that provides any assurances. 

In conclusion, we stand behind our products 100%! If you are not satisfied with our service or our products please contact us so that we can fix it immediately. 

 

 

Types of Ball Valves

Types of ball valves :

 

Different types of bores for ball valves – full port, reduce port and V-port. These three types have different constructions and purposes.

 

  1. Full Port Ball Valve – A full-port, also known as a full bore, ball valve has a bore internal diameter (ID / inside diameter) approximately equal to the pipeline ID. This allows for reduced friction and pressure loss across the valve. With a full port ball valve there is NO restrictions to the flow of medium, but the valve can be more expensive. This type of bore is ideal for situations where pigging may be necessary. Global Valve & Controls (GVC) series CFS and 2T/3T split body and welded design, full port, flanged ball valve combines its sealing technology and design expertise for over 25 years with the versatility to solve even the most demanding applications . This technology and expertise is widely used in the chemical, pulp and paper, petrochemical, food and beverage and refining industries.
  2. Reduce Port Ball Valve – A reduce-port, also known as a reduce bore, ball valve is a valve in which the bore is reduced to one or two nominal sizes lower. This provides a more restricted flow path, generally resulting in higher energy losses. Global Valve & Controls (GVC) series RCFS and R2T/R3T ball valves offer both full port and reduce port valves. Known for its design features , superior sealing areas and various stainless alloys , the GVC brand is widely recognized as a leader in providing valve and flow control solutions for the energy , and oil and gas industries’ for a general all around great product and a fair price.
  3. V- Port Ball Valve – A V-port ball valve has either a “V” shaped ball or a “V” shaped seat. This type of valve also is known as a control valve in which the flow velocities need to be controlled / regulated as required per the application.

In closing Global Valve & Controls ball valves can be used in a variety of applications and markets, such as pipeline transmission, pig launchers, storage facilities, pulp and paper facilities , food and beverage , gas processing , industrial, and many more . Troy Richard, founder of Global Valve & Controls (GVC) explains that ball valves provide reliable leak protection and fugitive emissions concerns. Ball valves can be open and close quickly in which saves time and money on all automation packages.

Trunnion Ball Valves, API 6D Valves, Flanged ball Valves, Full Port Ball Valves

Flanged Ball Valve, Trunnion Ball Valve

Please visit is at Globalvalveandcontrols.com or GVCINTL.com  281-463-1474

Understanding Stainless Steel Ball Valves

Stainless steel ball valves are definitely one of the popular materials that many people buy. They are perfect for the food and beverage industry, agriculture as well as the pulp and paper industries. The reason behind this is because stainless steel does not corrode and when dealing with food which we consume you do not want your machines corroding. White it is true that stainless steel (SS) does not easily corrode or rust, it really depends on the oxygen level in atmosphere. For example, if it is a poor air circulation environment, depending on the grade of the SS valves the valves may or may not corrode. Therefore, it is always important when dealing in such circumstances to get a high grade type of SS valve.

The material stainless steel is not to be confused with carbon steel as carbon steel will rust at one point in its life. The difference between the two metals is the amount of chromium present. Stainless steel’s resistance to corrosion and staining, low maintenance, and familiar lustre make it an ideal material for many applications. The alloy is milled into coils, sheets, plates, bars, wire, and tubing to be used in cookwarecutleryhousehold hardwaresurgical instrumentsmajor appliancesThese are examples of a few items one may be familiar with.

It is very important to know which grade of SS you need for your application as stated above if the grade is low, it will not last or you will have problems later down the road. Therefore, always consult with the manufacturer before buying. Global Valve and Controls can provide you with 316SS, 317SS and 304SS just to name a few. There are many different grades and one may not know that 304 is not to be used in the presence of sulfuric acid.

GVC 4" #300 API 6D Valve, Stainless Steel Flanged Ball Valves

GVC 4″ #300 API 6D Valve, Stainless Steel Flanged Ball Valves

Source: Global Valve and Controls

Lubricants for Your Valves’ Gearbox

Theory: Cold weather dictates a different type of lubricant to avoid seizure and promote proper function inside the gear housing.

Global Valve and Controls states, “in order to have a proper functioning valve it is necessary to use the correct grease inside the gear housing.”

In a case study where non-cold rated grease is applied to a valve that is heading to Wyoming, where the weather can be frigid seven months out of the year; the likelihood of the valve seizing becomes increased and the average lifespan potential will decrease.

Aftermath: It is a wise decision to consider the environment that your purchased valve will be applied to. With Global Valve and Controls, these are questions we ask our customers to protect their investment in order to increase the longevity of their valve; like a vehicle, it is important to use the recommended lubrications and oils to ensure proper performance. Valves are the same way. Moving parts need the correct lubrication to operate proficiently.

Fact: Materials such as grease or oil, are affected greatly by weather, hot and cold. However, lubricants can be engineered to withstand various environments by being structured to hold their viscosity.