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Latest company news – hear all of the latest news from the heating elements company TPFay.com

BSP Thread Sizes – A constant source of frustration for our customers

Brass Heads for Industrial Immersion Heaters

Industrial Immersion Heater Brass Screw Plug Head Components in various BSP Sizes from (¾”) 0.75″ to (2½”) 2.5″

It should be simple.

You measure something, and that is the size.

Simple?

Not if you are measuring a thread, especially if it is a B.S.P. (Bristish Standard Pipe) thread……The size was originally based on the inner diameter measured in inches of a steel tube for which the thread was intended. This often causes confusion, as people think the size refers to the outside diameter of the male thread.

For example, the most common BSP Size for UK Immersion Heaters is 2¼” BSP.
However, if you measure roughly across the threads to check the diameter, it looks closer to 2½”, 2.58″ or 65.71mm, to be precise. But, how can you be precise when you have just struggled to remove an old immersion heater and you might be using a tape measure to try to gauge the thread?

If you ask for a 2½” BSP immersion heater to be made, it will arrive with a thread size of almost 2.96″ or 75.18mm, which will be really annoying as there is no way it will fit, it will be the thread size you asked for but not the size you need. It is the same for all other BSP threads so caution is required.

We at TPFay will try our best to guide you when you ask for a particular BSP size on a heater you would like us to make for you. We may seem to ask you to check the size you need, to the point of annoyance, but we are trying to guide you. We have encountered so many customers who have unwittingly ordered an immersion heater with the wrong size, it can be an expensive and frustrating experience.

Below is a table of common BSP sizes we use for TPFay Immersion Heaters and Element Fittings. Because we use it all the time it is simple for us, but we know it is less than straightforward if you are unfamiliar with the sizes, so was have a handy tip to help you identify the thread size you need if you are trying to measure around a male thread, it is almost impossible with a tape or desk rule.

BSP Thread Form

BSP Thread form

Nominal Size BSP  Thread Form Type  Major Diameter mm d=D  Pitch mm p  Threads per inch tpi  Minor Diameter Male Thd. d3 
¼” BSP 13.16 1.337 19 11.45
3/8 “ BSP 16.66 1.337 19 14.95
½” BSP 20.96 1.814 14 18.63
¾” BSP 26.44 1.814 14 24.12
1 “ BSP 33.25 2.309 11 30.29
1¼” BSP 41.91 2.309 11 38.95
1½” BSP 47.80 2.309 11 44.85
1¾” BSP 53.75 2.309 11 50.79
2 “ BSP 59.61 2.309 11 56.66
2¼” BSP 65.71 2.309 11 62.75
BSP 75.18 2.309 11 72.23
    MEASUREMENT TIP
  1. Cut a strip of paper that you can wrap around the thread you want to measure.
  2. Draw a Line across it with a pen or pencil.
  3. Wrap the paper strip once around the thread and make a second mark where the paper overlaps the first mark.
  4. Unwrap the paper and measure the distance between the marks. This should correspond to one of the measurements on Major Diameter mm d=D above.

If you have any difficulty, give us a call 03703 505058.

 

 

 

We Make-up for Make-up

Recommended to contact us by a friend (Our favourite kind of advertising) Mike Dargan of Dashbo Ltd, brought another new application for us.

Dashbo are a manufacturer of Theatrical and Special FX makeup. A new formulation needed to be heated in an insulated container, then maintained at a constant temperature.

Mike visited our factory bringing the container, and explaining the requirement.

Dashbo needed something that was hygienic, low watt surface temperature and easily removable to permit easy cleaning of the container and the element after use.

After discussing various options we designed a heater to fit the container for the first trial production batch.

Image of Heater design

Image of Heater design

A few simple designs were sent for approval. A pocket was incorporated for simple plug in digital controller.

 

 

Make-Up Heating Element Dashbo

Make-Up Heating Element Dashbo

If we can assist with the “Make-up” of bespoke heaters for your application please get in touch, call +44(0)3703505058 or email sales@tpfay.co.uk or fill in our contact form here. We will be pleased to help.

Question Mark Brewery Kettle Heater

Here we have a “Question Mark” shape brewery immersion heater. For a leading London Micro-Brewery.

Designed to create a rolling boil in your Brewing Kettle – removable for cleaning when required.

Easy fit and easy removal. Heat is concentrated around the lower circumference of your kettle / copper.

If you are puzzled by the question mark and have some of your own?

Just ask us we will show you how we can make one for your kettle.

QUESTION MARK SHAPE BREWERY IMMERSION HEATER.

QUESTION MARK SHAPE BREWERY IMMERSION HEATER.

QUESTION MARK SHAPE BREWERY IMMERSION HEATER.

A British Manufacturing Company

Amid all the talk of exit negotiations from the EU, upcoming trade agreements with countries around the globe, exchange rate worries, tariffs and duties, protectionism, the world of trade looks a little perilous right now.

So why not Buy British?

A British Manufacturing Company

A British Manufacturing Company

TPFay saw the perils of a shrinking UK market of suppliers in 2009, and decided to do something about it. Our supplier base in the UK was getting smaller, we could, and did, explore the world for additional and alternative suppliers for heating elements. There are many manufacturers to carefully choose from; but, even with the best quality products, logistics were always an issue. The sometimes random delivery time and fluctuating cost to ship goods around the world made us wary of looking to import our heating elements.

We invested heavily, in new plant and machinery, and quietly, began making our own straight length heating elements in 2011.Company History

We have gained security in our supply chain, can offer you rapid delivery, and can be assured of quality from start to finish in all aspects of our key product – Heating Elements.

Plus we have created and secured British jobs, we have done our bit to try to even out our little bit of the trade balance.

Our production techniques are unique and environmentally frugal.

TPFay are undoubtedly reliant on some raw materials that are sourced outside the UK but wherever possible we will use UK manufacturers and suppliers. We are not closed off to the prospect of global trade, we are keen exporters of our products, worldwide.

So we would like to urge you to Buy British, especially if you are considering buying heating elements, but more than that, if you can make a positive choice when buying or specifying any items. Ask questions of your suppliers, can it be British sourced. Obviously, cost is a consideration, but after shipping, import costs, potential delays and so many more factors, is a UK supplier really more expensive? Your order could make a difference, to your company, to your supplier and the UK economy as a whole. Give it a try. Give us a try.

A British Manufacturing Company

A British Manufacturing Company

BUY BRITISH

 

Thank you for saying, Thank you. We love feedback.

It’s really great to get a positive response from a delighted customer.

We really try to do the best for all of our customers, and it becomes the “normal” level of service. But when we get feedback, it really helps us know we are getting it right.


From: GRAHAM HAYES 
 Date: 10 October 2016 at 21:51:32 BST
 To: Sarah Fay 
 Subject: Re: Sales Invoice SIN______. From T.P. FAY (KIRKBY) LTD.
 Reply-To: GRAHAM HAYES 

Dear Sarah,

Just a quick e-mail to you to thank you and your team for 

an excellent job on my recent order. I had to ask for you to

push through the elements for me after a total break down

here at work. I had initially said that there was no hurry so

when you managed to get them done in just over 24 hrs,

well that was unexpected and very much appreciated.

Thanks again

Regards

Graham Hayes

Daily Wash Service Ltd.

Graham, Thank you for saying thank you. We appreciate it.

TPFay, Helping To Keep London Moving!

Laing O’Rourke are currently, quite literally breaking ground at one of London’s iconic underground tube stations. Responsible for the update of Bond Street station, we were recently approached by Costain Laing O’Rourke.

During the application of Shotcrete, it is critical that the water used is kept at the correct, optimal operating temperature. With a new application of Shotcrete required as part of on-going building and groundworks, we were asked to help.

Bond Street Station

Huge tanks are involved in Shotcrete application, and with tanks so large, it was not possible to fit a conventional immersion heater or flange heater. After a chat and the exchange of drawings and various ideas, we were able to come up with a solution.

Tailor Made Water Heating Solution

We designed and build a innovative suspended, top entry immersion heater that did the job for them, ensuring optimal water temperature allowing Laing O’Rourke to get on with the job in hand.

Whatever you need, we have the expertise to help, no matter how unconventional your requirements!

contact us