Changes in water temperature have various causes. For example, the valve may be blocked or may have moved out of position. The thermostatic element might have stopped working or might have a problematic O-ring. Or, you might have a problem with water pressure or flow through the valve.

A. Our Flange Finder contains details for many common flanges. Typically, to be able to make the identification you need to know the bore size or outside diameter and number of bolts. For technical assistance contact us or use our Live Chat facility.

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FlexEJ’s manufactures Air, Dirt and combined Air & Dirt Separators in the UK. They can all be bought direct from our web shop on a 24hr dispatch basis (Monday to Thursday). FlexEJ can also manufacture to meet specific client requirements, please get in touch if you do need a custom-designed air & dirt separator built for a specific size or need.

If a TMV valve stops working correctly, then you may notice that your hot water suddenly starts to run hotter than it should. If the valve can’t regulate temperature correctly, it might not be able to cool hot water down enough to make it safe.

Do try our air & dirt separator product finder (below) to check if we have a stock air & dirt separator size and specification that meets your needs. If not then do call us on the usual 01384 881188 or use LIVE CHAT or drop a note or specification to us via our Get A Quote page. We can also help with technicalities, drawings and whatever you need – including flange ends identification although do try our handy Flange Finder if you simply need to identify flange connections needed.

We can provide full technical details together with, pricing and shipping timescales. For more complex engineered quotes, preliminary sketches and calculations will be provided.

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24hr shipping 24hr shippingIs this range available with 24hr UK shipping from stock as standard (Monday to Thursday), mainland and main islands only?

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If you have problems with a TMV, then you sometimes see outward signs that all isn’t well. For example, water might seep out of parts of the valve; you may even see some water on the floor under it. This might indicate a faulty seal or a corrosion problem.

However, excess heat isn’t the only sign of trouble here. Sometimes, a failing TMV makes the water too cold. Or, water may not run at the right temperature consistently. It may fluctuate between being hot and cold.

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FlexEJ can design and build large, multi-circuit low loss headers to order. We can also offer low loss headers with air and dirt sections and all products in larger diameters for bigger systems. Please let us know what you need.

FLEXEJ is a leading UK supplier of high-quality flanged rubber bellows, expansion joints and compensators as well as custom engineered rubber and metal bellows, industrial metal hose, pressure vessels, HVAC fabrication, pressure design and specialised pressure welding – from our manufacturing plant in Stourbridge, near Birmingham, in the heart of the West Midlands in the UK.

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If you have concerns about a TMV, then you need expert help. Don’t try to fix these valves if you don’t know what you’re doing. They are too important a safety job to mess up.

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First, it allows your system to store water at a high enough temperature to keep bacteria at bay. However, it also regulates the temperature of the water that you use.

When you turn on a tap or shower that connects to a TMV set-up, then the valve controls the release of hot water. Typically, it mixes hot and cold water together to reach a set temperature as dictated by its thermostat setting set by a plumber with a TMV licence. So, your water should never run so hot that it could scald or burnWhen all is well, the TMV works seamlessly. However, it might develop problems that prevent it from working as it should. What are the signs that your valve has a fault?

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For example, your water might start to run sluggishly and slowly all the time. You might struggle to get the tap to give out more than a trickle of water. Or, your water might switch between working normally and running at a reduced pressure or flow.

Custom connections Custom fabrication/OEM optionsFlexEJ can supply custom units and is an original engineering manufacturer (OEM) supplier for air & dirt separators. Flange connections are available from DN40 to DN400 and to any current flange specification to match requirements?

Sometimes, the first sign of a TMV problem is a change in the way your water comes out of a tap. Typically, you see a reduction in flow or pressure here.

A. Most of our air & dirt separators are available from stock on a 24hr delivery basis. Non-stock separators or custom-manufactured items typically take 7-14 working days, depending on options and quantities required.

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A. Yes, the majority of FlexEJ’s current range of Air and Dirt Separators are available from the FlexEJ shop on a same-day despatch basis although our largest Air and Dirt Separators (DN100 to DN150) need to be pallet-delivered and require an extra 2-3 days for delivery. We can also supply Air and Dirt Separators on an ongoing OEM basis and can cater for custom requirements. Please ask for details.

For instant advice. We can custom-design and engineer almost any expansion joint you need for delivery in the UK or worldwide. Call our expert team on +44 (0) 1384 881188 Or email us sales@flexej.co.uk

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For a quick diagnosis and fix, contact plumber Wahroonga Andrew Vanny Plumbing . We can check your TMV over and repair or replace it for you.

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A thermostatic mixing valve (TMV) bridges the hot water in your system and the water that comes out of taps or showers. It keeps your hot water system safe in a couple of ways, and can keep you safe, making it a crucial part of your home plumbing that your local plumber should always check.

If you have a TMV in your shower, then a faulty valve can make the shower drip even when it is off. Here, the valve may not be in the right position so it doesn’t shut water off effectively. Or, you may have a problem with the valve’s seals or cartridge.

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FlexEJ Air, Dirt and Air & Dirt Separators can be used in both heating and cooling systems. These robust and cost effective units are manufactured in our UK factory.

202282 — A thermostatic mixing valve is a gadget that fits before the hot taps. Yet, it mixes both cold and hot feed. However, it delivers the water ...

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Search for FlexEJ air & dirt separators by connection (pipe) size required, intended HVAC use and/or connection hardware (type):

In some cases, a faulty TMV can also affect your cold tap. Here, you might find that this tap runs warm or hot rather than cold.

Again, these problems can have various causes. Sometimes, water can’t run through a TMV freely because parts of its valves are gummed up with debris or scale. Older valves might also suffer from corrosion which blocks them up. Or, a valve might not have been fitted correctly in the first place.