yeh it s ok to use compression. compression couplings as standard on rad valves, motorised valves, pump valves, boiler iso valves etc so no reason why you can t use them on surface pipework. Not open for further replies. Reply to Use compression joints on a combi system? in the Central Heating Forum area at PlumbersForums.net
Can I use compression fittings for radiator?
Absolutely no problem using compression fittings on Hep20, and you've taken care to fit the inserts. Like with any installation using compression fittings, it would be a good idea to have very good access to them, especially for a while after system start-up (don't nail any floorboards back, etc!) just to check.
Is it OK to use compression fittings on gas?
Compression fittings designed for liquid will work fine with gas but if you use optional PTFE tape, make sure it is gas grade. In addition, ensure the fittings are accessible and not hidden behind walls or under floors.
Are push fittings OK on central heating?
Yes this fitting is suitable for central heating and it will connect directly to metric size copper pipe of the same diameter.
Where Can compression fittings be used?
Compression fittings are used extensively in hydraulic, gas, and water systems to enable the connection of tubing to threaded components like valves and tools.
When should you not use compression?
“If you have peripheral vascular disease affecting your lower extremities, you should not wear compression socks,” he says. “The pressure provided by compression socks may make ischemic disease worse.
When should compression not be used?
If any of the following contraindications are present, compression therapy should be not be carried out: • Uncompensated organ failure (i.e., heart, liver, or renal). Untreated deep vein thrombosis or phlebitis. Severe arterial disease (ABI 0.49 or less) unless ordered by a vascular surgeon or Physician.
Can I use push fit on mains?
Connecting water to the mains MDPE is the most common material used for robust, heavy-duty requirements, making our MDPE push fit fittings perfect for underground trenches and connecting mains water supplies to homes.
Can I use flexi pipe on central heating?
The use of flexible hoses within central heating systems is only suitable where necessary providing the hose itself is suitable to deal with the maximum temperature and pressure within the system.
Do push to connect fittings leak?
While it's rare for quick-connects fittings to be defective, leaks are common because of improper installation, damage, or forceful pressure.
Are compression fittings illegal?
You cannot, under any circumstances, use compression fittings to repair the lines on a public transportation vehicle. Many states have banned the use of this repair on passenger vehicles, too. In addition, you might find that compression fittings will cause your vehicle to fail inspection.
What are the disadvantages of using compression fittings?
Disadvantages: Compression fittings are bulkier and can be considered less aesthetically pleasing compared to the soldered joint. Compression fittings are not nearly as robust as soldered fittings making them much more sensitive to powerful stresses.
Do professional plumbers use compression fittings?
Compression fittings are required in both plumbing and electrical conduit systems to join pipework or tubing together. They are also used in toilet stop valves and hot and cold water taps in domestic and industrial settings.
What type of fittings do you use for gas?
Types of Gas Fittings Most gas fittings are made from either copper or brass. The most common gas piping is copper, Duopex, Gaspex. A fitting or adapter is used in pipe systems to connect straight sections of pipe to different sizes.
What kind of fittings is allowed to be used on gas pipe?
Flex connectors: Flexible connectors are permitted to connect appliances to the gas piping. There has to be a shut-off valve at the connection to the rigid piping. This valve has to be in the same room as the appliance.
What are the disadvantages of using compression fittings?
Disadvantages: Compression fittings are bulkier and can be considered less aesthetically pleasing compared to the soldered joint. Compression fittings are not nearly as robust as soldered fittings making them much more sensitive to powerful stresses.
How do you install a compression fitting on a gas line?
0:031:37How to Install CSST Fittings - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd slide the retainer ring over the first Valley and pinch closed using channel locks turning theMoreAnd slide the retainer ring over the first Valley and pinch closed using channel locks turning the ring while applying intervals of pressure helps close the ring and seat it in the valley.
Simon J New Member
As far as I'm aware there should be no problem using compression fittings, they've got to be able to stand quite a lot of pressure for various situations & 1.5 bar is not excessive.
Andy Fish New Member
That is the biggest load of b ***** I have heard this year. Virtually every ch sytem on the planet will run at 1-1.5 bar, so wheres the problem?
plummit New Member
As long as you have used inserts into the "plastic" pipe all should be well.
Bitty New Member
Absolutely no problem using compression fittings on Hep20, and you've taken care to fit the inserts.
What is PTFE Tape?
PTFE tape (polytetrafluoroethylene) is also known as Teflon tape or plumber’s tape and is a type of thread lubricant used for waterproofing and to prevent threads from seizing.
What is PTFE Used for in Plumbing?
In plumbing, PTFE tape is used to wrap around threaded parts of a pipework connection to create a seal against leakage.
Can You use PTFE on Isolation Valves?
If you have had to change an isolation valve at any point and been unable to remove the olive and decided to reuse the union nuts that are already there… A good thing to do would be to use some PTFE tape as outlined above.
Why is PTFE tape needed?
With old fittings, PTFE tape is needed to help seal the joint but the key thing here is not whether PTFE tape should or should not be used, it is how the PTFE tape is applied, especially on cheap or older fittings where the olive cannot be removed.
Why do you put PTFE tape on olives?
In the case of a compression fitting, the PTFE tape is wrapped around the leading face of the olive to help create the watertight seal. Do not apply PTFE around the thread – the thread is there to enable the compression and will not be the cause of a leak itself.
How to use PTFE tape?
Another way to use PTFE tape is on certain types of packing nuts such as the one you will find on a lockshield valve to save time in draining the entire system. Pull off about eight inches of the tape and twist it so it appears like a piece of string. Then after removing the packing nut, wrap it around the stem of the valve and poke down with a tool such as a bradel.
Is PTFE tape good for fuel lines?
Yes, PTFE tape is resistant to petrol and is often used on fuel lines.
