Edmonton Valve & Fitting Blog

Heading to the 2018 ISA Automation Expo? Edmonton Valve Is Too

Wed, Apr 11, 2018 @ 10:04 AM / by Katie Reid posted in Tubing, Sample Systems, Fittings, Events

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Stop at our booth on April 25 and 26 to check out Swagelok products and ask all the questions


AEC

For years Edmonton Valve has been a proud sponsor of the International Society of Automaton (ISA) Edmonton section. Come by and see us at booth #1032 to check out some of Swagelok's new offerings. 


One of North America’s largest automation events returns to Edmonton on April 25th and 26th: the ISA Automation Expo & Conference. Edmonton Valve & Fitting will be among the exhibitors at Edmonton Expo Centre. You can find us at our usual hangout booth 1032, to the far right of the first row as you enter the exhibit hall.

Lots of Swagelok to see

At our booth #1032 you can take a close look at several products, including our grab sample panels, variety of Swagelok hoses, and 60 Series Ball Valves. We even got our Custom Solutions department to make up an unique piece so make sure you stop by to see what it is!

And some of your favourite Swagelok account managers will be on-hand to ask your fluid system questions to - it's a great opportunity to get that one-on-one time. 

About AEC

The International Society of Automation Edmonton Section launched the expo back in 1980. For many years it was known as the ISA Exhibit & Conference. Aside from chance to see more than 175 exhibitors, the conference is an opportunity to network and collaborate with thousands of automation, instrumentation and control systems professionals from a diverse range of global industries including: petroleum, mining, power, water & wastewater, forestry, agriculture and more. Then there's the conference portion, featuring internationally renowned speakers and local experts.

We hope to see you there, doors open both days at 10am! And if you need more information, contact us!

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We Have The Tools You Need For Cone & Thread Fittings

Thu, Mar 29, 2018 @ 16:03 PM / by Katie Reid posted in Equipment Rentals, Tubing, Fittings

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Rent our manual tool to use on site, or have us use our automatic tool


Cone and thread tubing and tube niples

The equation for a High pressure working environment = stronger fitting + stronger tubing. But those tube bends can't be done with your hand tube-bender, so contact us to get those bends looked after. 


Longtime readers of our blog might recall a post about our IPT fittings for high-pressure applications. These extra-strong fittings are designed to handle pressures up to 60,000 psig or 4134 bar.

Just as high pressure demands a stronger fitting than usual, so does it demand stronger tubing. The special cold-drawn tubing for IPT fittings is harder and has thicker walls than our standard tubing. The threads must be cut into the ends, and finished off with a cone at a 59-degree angle. It fits into the primary seal surface of the fitting, which has a 60-degree angle. The tube walls are thick to that material can be cut away for the threads. In a sense it's really a very small pipe

It's tool time

So how to you get the threads and cone on the end of the tubing? We offer two options. You can rent a tap-and-die set from us, along with our bench-top tube bender. (Our handheld bender won't be up to the job for this thicker tubing.)

But if you prefer, we can do the work for you at our shop so that you save time and effort in the field. Our automatic tools in our own shop can easily perform work that is much harder to do on site. We can produce as many pieces of tubing as you need, and can even do things such as put a 90-degree nipple on the tubing.

Even if you are an old hand at tube bending, the harder steel and thicker walls mean slightly different rules. The bend radius must be larger, at least 1.25 inches for quarter-inch tubing.

These cone-and-thread fittings are designed specifically for the oil and gas, chemical, petrochemical, alternative fuel, and instrumentation industries. We'll be glad to tell you more and talk about your specific needs. All it takes to start the conversation is a call to Edmonton Valve at 780-437-0640, or a quick note through our website.

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Calipers, Combs, And Guides Help Make Sense of Threads

Thu, Nov 09, 2017 @ 12:11 PM / by Alecia Robinson posted in Valves, Fittings, Measurement Devices

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Scratching your head about threads? We have three tools that solve the mystery

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  The Pipe and Tube Sizes board (pictured above) is at our back counter. Bring in your fittings and we can help determine the sizing.
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  The thread pitch gauge is another tool we use to help with thread size - it's even available for purchase! To get more info on sizing, download the Thread and End Connection ID Guide PDF.

Can you tell the thread size and thread pitch on a component just by looking at it? Neither can we. That's why we have tools that eliminate the guesswork.

When you look at a thread, you'll see peaks (called crests) and valleys (called roots). The part in between the crest and the root is called the flank. The first thing you want to find out is whether the crests are all the same diameter. That would mean you have straight threads. So we get out our calipers and measure the first, fourth and last crests. If the measurements are the same, you have straight threads. If you get three different measurements, you have tapered threads.

There's another way to tell, provided that you are working with Swagelok parts. Other than standard NPT, Swagelok fittings are uniquely marked to indicate ISO tapered or ISO parallel threads.

Some people are surprised to learn that straight threads are not designed to seal on their own. They require a gasket, O-ring or some kind of metal-to-metal contact to finish the job.

Tapered threads are designed to seal as the mating threads are drawn together. In addition, some kind of sealant is necessary to prevent leaks. That's usually PTFE tape or a product such as SWAK.

Here comes the "pitch"

Next you need to know how close together the crests are. That's the pitch, usually expressed as the number of threads per inch.

Straight threads come in three standard kinds of measurements. The most common are SAE (Society of Automotive Engineers), ISO 228/1 (also known as British Standard Pipe Parallel), and metric. Tapered threads also have several standard forms of measurement: NPT (National Pipe Thread), ISO 7/1 (also known as British Standard Pipe), and metric.

The flanks can come in different angles, known as Whitworth, unified, or metric.

To discover the pitch, we use a thread comb, also known as a pitch gauge. It looks a bit like a pocketknife, but the blades have saw-tooth edges that fit into the thread roots. We simply try different blades until we find an exact match. Some fractional and metric thread forms are very similar, so we take the time to make sure it's a true fit.

You also can turn to the Swagelok Thread and End Connection Identification Guide, which you can download for free. It has all the terminology, thread ID reference tables, and step-by-step instructions for identifying threads.

Lastly, Edmonton Valve & Fitting has a board with various sizes of threads. If you come in with a part, we can see which sample it fits.

Obviously, the threads on two parts have to have the same size and type of threads if you want to connect them. But you don't have to guess. Check in with Edmonton Valve & Fitting and we'll work with you to get the right answer. Give us a call at 780.437.0640 or get in touch below.

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Small Hole Creates A Big Advantage For Flush Systems

Thu, Nov 02, 2017 @ 13:11 PM / by Alecia Robinson posted in Tubing, Fittings

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Special Swagelok flange adapter with pre-drilled orifice simplifies design


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Threaded connections can be problematic when dealing with rotating equipment. Swagelok offers orifice flanges to reduce the number of threaded connections within your flush systems. Get in touch with us today to learn more.

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Sometimes a small modification can make a big difference in a fluid system component. Take, for instance, Swagelok's flange adapters. We've written about them before, explaining how they provide a threadless, weldless transition from flanged pipe to tubing.

We have a special flange adapter made with flush systems in mind. For our customers with rotating equipment, we offer the Swagelok orifice union and orifice flange adapters. Because the orifice is pre-drilled into the flange, between the tube fitting and the flange itself, you get a unique solution that helps reduce the number of threaded connections in your flush systems. You no longer need to worry about threaded adapters leaking due to vibration or freeze-thaw cycles. You'll also save money by not having to weld the flange.

As with all our flange adapters, they reduce both the number of connections and the overall weight.

Typically the orifice is drilled out to 1/8 inch, but we can supply custom sizes too.

If you are already using flanges to simplify your system design, reduce weight and end up with fewer leak points, you already understand the value of these flange adapters for flush systems in rotary equipment. If you haven't yet made the switch to flange adapters, we can help you get started. All it takes is a call to 780-437-0640, or you can contact us through our website.


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What Are Swagelok's PFA Fittings All About?

Wed, Oct 25, 2017 @ 09:10 AM / by Adam Telenko posted in Tubing, Valves, Hoses, Fittings

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PFA 1.jpgpfa 2.jpg

We have a full line of PFA fittings, valves, and tubing, to get your copy of these catalogues download them below.

PFA Catalogues


Swagelok carries a variety of materials for our fittings and tubing so selecting the correct one for the job can be daunting. We discussed some of the options in our blog on special alloys earlier this year but today we will further explore our PFA line of tubing and fittings.

PFA, or Perfluoroalkoxy, is a type of fluoropolymer. It has very similar properties as the more common polytetrafluoroethylene (PTFE) – also called Teflon.

PFA is generally used for plastic lab equipment because of its optical transparency, overall flexibility, and extreme resistance to chemical attack. PFA is also often used as tubing for handling critical or highly corrosive processes.

What to consider

You can use Teflon or metal fittings with Swagelok PFA tubing. Just remember using PFA fittings with PFA tubing you need to use a Swagelok groove cutting tool to 'groove' the tubing and achieve higher working pressures.

Some other important things to consider when selecting PFA tubing and fittings are the following:
  • An audible ‘click’ sound ensures tubing is properly inserted
  • 316 SS fittings can be used with PFA tubing
  • PFA Plug and Needle valves are available 

How to order

PFA part numbers are slightly different than Swagelok’s common tube fittings, for example:

  • PFA-420-1-4 for a 1/4" male connector
  • PFA-820-6 for a 1/2” tube union

But don't worry about memorizing part numbers, give your local Swagelok experts a call and we will be glad to help out.


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In a hurry or have a question? Please click here to get in touch - we respond fast! Or call 780.437.0640.


 

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Strength and Simplicity: Medium Pressure Fittings

Tue, Aug 15, 2017 @ 14:08 PM / by Alecia Robinson posted in Catalogues, Fittings

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They handle extra pressure without requiring any extra tools or extra effort


Medium pressure fittings.jpg

When you need a robust fitting that can handle up to 20 000 psig with an easy installation, Swagelok medium pressure fittings are a great solution. Download the Medium- and High- Pressure Fittings Catalogue to find out more.


Earlier this year we wrote about Swagelok's IPT fittings for high-pressure applications. But maybe you are looking or something that takes less time to install and can be verified for proper installation. For pressures that don't go beyond 20,000 psig (1378 bar), consider Swagelok's line of medium-pressure fittings.

With our medium-pressure fittings, you don't need any special tools or special skills. You don't have to cut threads or cone the ends of the tubing, as you would for the high-pressure fittings.

The simple two-piece design of Swagelok's medium-pressure tube fittings and adapters consists of a female fitting body and preassembled cartridge containing the male nut and color-coded front and back ferrules on a disposable plastic arbor. The preassembled cartridge ensures that installers will have the correct ferrule orientation, plus visual confirmation when the ferrule is present and properly installed in the female body.

The components are released only after the nut is threaded finger-tight on the fitting body.

Key differences

While Swagelok's medium-pressure fittings don't require special tools or skills, their installation differs from standard Swagelok fittings in a few key areas. 

First, it takes only one full turn to pull up the fitting, not the turn-and-a-quarter of our standard fitting. Second, proper tightening can be measured by torque as well as with our gap-measuring gauge. That means this is one of the very few components in the Swagelok catalog that can be mixed into your fluid system without having to upgrade all the fittings at once.

In our medium-pressure line we have straight fittings, 90-degree elbows, tees and union crosses, plus caps and plugs.

The strain-hardened stainless steel bodies offer lightweight space-saving designs. You'll also get Swagelok's patented low-temperature case hardening processing of the ferrules and nut.

Your fluid system needs to run on the right pressure for the job, and you need the right fittings for the pressure. Edmonton Valve & Fitting can make sure you get the right match. Call us at 780-437-0640 or contact us through our website.


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The Advantages of Swagelok VCR and VCO Fittings

Thu, Aug 03, 2017 @ 16:08 PM / by Alecia Robinson posted in Fittings

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Most people know Swagelok for our two-ferrule Tube Fitting. However, we also carry two valuable lines of face seal fittings.


VCR_zero_clearance1-1.png

VCR and VCO zero clearance allows for inline service. Download the VCR & VCO catalogue today for more information.


The VCR and VCO product lines are two more items that could save you a lot of time and money down the road. The primary distinguishing feature of the VCR and VCO fittings is that they have a zero clearance capability. This means that unlike pipe, tube, and weld end connections, the VCR and VCO fittings can be disassembled in line – with no clearance requirements. VCRs and VCOs serve as a make and break point – a spot to access the system for repair and upgrades without having to remove multiple parts.

They also feature silver plating on all female threads, which prevents galling and eliminates the need for thread tape, which improves ease of installation. There are also leak test ports on the side of each nut, where the metal faces come into contact and the seal takes place. Lastly, there is a split-nut available, which further increases the ease of assembly and reassembly.

Easy access

Thanks to the flat face seal of both the VCOs and VCRs, you have unlimited make and remake capabilities. All you have to do is replace the gasket on the VCR  each time you remake the connection. The gasket is the least expensive piece of the assembly, so replacing this is much more cost effective than replacing the whole assembly. When installing the VCRs and VCOs, tighten the nut finger tight and then use a wrench to turn the nut 1/8 of a turn.

There are certain capabilities that differ between the two products. For example, in high temperature applications, the VCR  is a better option because the metal gaskets allow for a much higher temperature capability; as high as 1000 F for a stainless steel gasket.

Assembly options

VCO Assemblies:

Gland + Body + Nut

 VCR2

VCR Assemblies:

Female Nut + 2 Glands + Gasket + Body (Male Nut)

OR

Female Nut + Gland + Gasket + Body

 VCR3

 

Multiple applications

VCRs and VCOs are popular in hydraulic systems as well as welded and threaded systems. They also provide a great transition from such systems to a tubing system, by using a tube adapter end connection. Thanks to the variety in end connections that are available in VCRs and VCOs from Swagelok, there are endless combinations available to our customers. For more information on how VCR and VCO fittings could work for you, download the catalogues, or ask us.

 

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Dielectric Fittings Prevent Shocking Results

Thu, May 18, 2017 @ 12:05 PM / by Alecia Robinson posted in Fittings, Measurement Devices

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A buildup of static electricity can make a mess of analytical equipment


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Swagelok's dielectric fittings and adapters isolate monitoring instruments from the effects of electrical current; to find out more about dielectric fittings download the catalogue today.


As analytical instrumentation becomes more sophisticated and sensitive, it's more important than ever to protect the equipment by using dielectric fittings and adapters. They isolate the instruments from the effects of electrical currents and maintaining full fluid flow.

Running fluid through a line can cause a natural buildup of static electricity. If that ever reaches the metering device, it could make all your readings unreliable, or knock them out entirely. In a system running volatile fluids, a static discharge could cause an explosion.

The dielectric fitting itself is simple. It starts with the classic Swagelok design, then adds a thermoplastic insulator to prevent electricity conduction from a main area to a metering device. The design is unique in the way it separates the two primary functions of electrical insulation and fluid containment. Since the insulators are not primary seals, the material and design provide high dielectric strength over a wide range of operating and climactic conditions.

A Viton O-ring and TFE backup ring serve as the primary fluid seal. The seal is completely self-contained and requires no maintenance.

Too relaxed

No one sets out to create a problem in their fluid system design. What often happens is that people get used to a certain approach, and don't always take into account the changing technology. Some older analytical equipment was built in a way that required a large sample of chemical or mixture to meet the requirements for a good reading. Today's more sensitive equipment can get the job done with smaller samples, but also are more susceptible to an unwanted electrical change.

Someone who habitually falls back on "the way we have always done it" may even think they're saving a few dollars by using standard fittings. But it's foolish to cut corners by installing regular fittings. Dielectric fittings should be standard practice, especially in any areas that have been deemed intrinsically safe.

Take a look at the dielectric fittings in our catalogue, then call us at 780-437-0640 or contact us through our website to talk about integrating dielectric fittings into your system.


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Sometimes Stainless Isn't Enough

Wed, Mar 15, 2017 @ 10:03 AM / by Tristian McCallion posted in local expert, Valves, Fittings

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Special Alloys are used in unique applications where stainless steel cannot hold up to the corrosive material.


Special Alloys.png

Swagelok carries an array of special alloys to meet our customers requirements, to find out more about special alloy uses download our Special Alloy catalogue.


How many materials can you get Swagelok tube fittings in? Two? Five?  Would you believe that our standard material list includes 16 different materials from nylon to titanium?

316 stainless is our most common material and is good for 95% of applications in northern Alberta but there are some limitations.

Special alloys

In the SAGD world on the water treatment side, there is often an elevated chlorine level in the boiler water.  Chlorine and stainless steels don’t mix well and it is common to find stress corrosion cracking in applications that have high chloride levels and stainless steel fittings and tubing.  There are a number of other materials that we offer that can provide the necessary corrosion resistance in this type of application, like Monel, or our high temperature carbon steel.

This is just one application where we are able to help out with special alloys.  Some of the other materials that we can provide include:

Teflon and PFA:  PFA is the injection moldable version of Teflon.  These materials provide for excellent chemical resistance to a wide range of different fluids.  Water treatment facilities are large users of PFA and Teflon fittings.

Alloy 400, or Monel:  This is a high nickel alloy that has excellent resistance to corrosion in reducing environments with fluids like hydrochloric, sulfuric and hydrofluoric acids.  It is also a commonly referenced material when looking at NACE specs.

Inconel 625: A very corrosion resistant in oxidizing and reducing media.  It offers high strength and good ductility.  It also has very good performance in sour gas (NACE MR0175)

Hastelloys:  C-276, C-22, B-2 are some of the grades that you can find, with C-276 being one of the more common alloys we deal with locally in this range.  It offers excellent resistance to pitting and crevice corrosion and immunity to stress corrosion cracking.

Duplex stainless steels:  A number of different materials are available here: 2205, 2507 super duplex and even the excitingly named 2707 hyper duplex stainless.  Often seen in offshore applications these materials have higher strength than 316 stainless and may have better resistance to pitting, crevice and general corrosion.

Swagelok makes fittings, valves and other components out of a wide range of different materials and would be happy to work on your applications with you.

Our Special Alloy catalogue provides additional information on some of the special alloys offered by Swagelok.


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In a hurry or have a question? Please click here to get in touch - we respond fast! Or call 780.437.0640


 

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Grace Under Pressure: Swagelok's IPT Fittings

Tue, Jan 10, 2017 @ 09:01 AM / by Alecia Robinson posted in Tubing, Fittings

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Cone-and-thread fittings make a tight, reliable seal


 IPT Fitting Diagram.png

 The image above highlights the key components of the IPT fitting.The cone and thread fittings are desgined to withstand medium and high pressure environments.

IPT Download


When you have a fluid system running at above-normal pressures, you need something sturdier than the standard Swagelok tube fitting. For great performance under pressure, we have the IPT series. We offer two types of IPT fittings: The medium pressure fittings are designed for up to 20,000 psig or 1378 bar and the high-pressure fittings for up to 60,000 psig or 4134 bar.

These cone-and-thread fittings are designed specifically for the oil and gas, chemical, petrochemical, water jet cutting and blasting, and aerospace industries.

A good angle

The threaded tubing ends with a cone at a 59-degree angle. It fits into the primary seal surface, which has a 60-degree angle. All manufacturers use the same interference angle between the male cone and female body, which allows for interchangeability. This is one of the rare times Swagelok gives a green light to mixing its components with those from other manufacturers.

A collar surrounds this area. A threaded part, called a gland, creates a load on the collar to ensure a seal on the tubing. This is another area where standard procedure departs from the standard Swagelok tube fitting. Instead of prescribing a fixed number of turns for proper tightening, IPT fittings require a specific amount of torque.

Another key element in IPT fittings is a weep hole at the collar. It's a quick way to detect leaks and verify proper installation. Even steam leaks are easy to spot by applying a bit of Snoop leak detector at the weep hole. When removing the collar and gland for maintenance, the weep hole also releases trapped pressure to avoid a "live loaded" thread. But never use the weep hole to bleed the system or vent system pressure. This could cause a pressure-injection injury to your employees.

The medium-pressure and high-pressure components have the same basic design, but the parts are not interchangeable. The high-pressure version has a larger collar and gland, and the collar sits inside the gland when assembled. The high-pressure design also uses thicker wall tubing to compensate for threads.

Both the medium-pressure and high-pressure versions have anti-vibration assemblies available. That's useful when the fittings are placed near a compressor, for example. Again, the assemblies are not interchangeable. An easy way to spot the high-pressure version is its additional slotted collet, which must be pointed in the right direction for assembly. (The medium-pressure slotted collet can be oriented in either direction.)

Tough tubing

The special cold-drawn tubing used with IPT fittings is also different from the standard used in other applications. It's harder and has thicker walls in order to allow cutting away material for threads with a tap-and-die set. In a sense it's really a very small pipe. We'll gladly rent you the tools to do the coning and threading, or we can do it for you if you tell us the dimensions you need.

Another difference from ordinary tubing is the outer diameter, which is slightly smaller than the nominal tube OD.

The harder steel and thicker walls also come into play when bending the tubing. The bend radius must be larger, at least 1.25 inches for quarter-inch tubing. (Keep that in mind when planning out your installation, as you'll need some extra space.) Don't try using a hand tube bender; use the bench-top version as you will also experience greater spring back.

Even extra-tough tubing is softened by heat. That means high temperatures (greater than 93.33º C) will have an impact on the pressure rating of the connection. At 204º C, the pressure rating drops to 93 percent of normal for strain-hardened 316 stainless. At 537º C it drops to 84 percent of normal.

Multiple assemblies

If you've properly installed your IPT fittings, you can take them apart and reassemble them up to five times. But it's important to make sure the cone stays perfectly smooth. If the cone doesn't fit tight against the body, you won't get a proper seal. Tubing can be re-coned if you aren't sure, though be aware that doing so can shorten the length of the tubing.

So don't let the pressure get to you the IPT download has even more information on all the types of IPT fittings and ordering information.

IPT Download

 


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In a hurry or have a question? Please click here to get in touch - we respond fast! 
Or call 780-437-0640

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