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can you use compression fittings on gas pipes

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can you use compression fittings on gas pipes插图


Can you use PVC pipe for gas line?

In short, the answer is no, they cannot. Due to the nature of PVC and other plastics as well, they are not well suited to use for fuel gas or kerosene. PVC and other plastics deform easily in high temperature environments, and may leak or rupture. What pipe can be used for natural gas?

Can you use galvanized pipe for a gas line?

You do not want to use galvanized pipe for gas because of the galvanized coating. Over time pieces of the galvanized steel will flake off and clog your gas regulators and burner units. Never mix galvanized and black iron or where they touch corrosion will be accelerated.

Can you use brass fittings on a gas line?

Can you use brass fittings on gas lines? Steel, copper, brass: The most common gas piping is black steel. Galvanized steel, copper, brass or CSST (Corrugated Stainless Steel Tubing) also can be used in some areas, but some utilities specifically prohibit the use of copper. Galvanized steel is used in some areas as well.

Can You reuse plastic compression fittings?

Can you reuse plastic compression fittings? This connector is directly placed over the pipe and the nut is tightened compressing the ferrule between the pipe and the body of the fitting . Because of the function of hydraulic fluid, plastic fittings may never be reused, reusing these connectors may lead to a leak due to plastic deformation.

What does Rama say about PTFE threads?

Rama said ""I can’t believe the number of pros that use PTFE on threads when in the union is made between the olive and the face of the fitting.""

Why do we use PTFE on compression threads?

PTFE is used as a secondary seal just in case the primary seal (olive) fails, and to suggest that PTFE can hinder the correct tightening of a fitting is ludicrous because it wont give that much resistance for this to happen – not unless it’s wound on half an inch thick! the real pros do use PTFE on compression threads! even more so on a gas joint because gas doesn’t have the surface tension that water has and will escape through the minutest failure point.

Where should compression joints be accessible?

The regs say compression joints should be accessible, and not within voids, or under floors.

Can you use PTFE tape on compression fittings?

Why do people keep going on about putting PTFE tape on compression fittings, you most certainaly do not use PTFE on a new compression fitting and if you read up on info from the likes of Conex they actually state that there is no need for any compounds eg Jet blue etc to be used

Can you put PTFE on olives?

Sometimes, it may help to put a little PTFE taps around the olive if a poor seal is expected.

Why do you need a sleeve on a wall?

Sleeving is to prevent damage by subsidence and to stop any leaking gas getting into a wall cavity. The sleeve should be sealed on the internal side.

How much does a 105He instant boiler cost?

It cost £330.00 which is a massive saving from the £780.00 cheapest quote i got from just about all the plumbers i rang.

Where can compression fittings be used?

Compression fittings can be used if they are accessible such as at the back of a cupboard but they dont have to be visible all the time.

Do PRV vents need to be sleeved?

PRV vent pipe does not HAVE to be sleeved. I see little advantage in sleeving them.

Is it right to change a syllable?

It isn’t right and should be changed by a competent person who will know what to do.

What is underground gas fitting?

Underground gas compression fittings link pipes or tubes together in a gas or plumbing system. They offer a comparatively quick and easy solution when compared to soldered fittings, as no special tools or skills are required to operate. If a fitting is needed and the location requires disassembly for maintenance, the joints may be broken and assembled once again without damaging the connection. At EGW Water & Plumbing, we offer a great selection of underground gas compression fittings for gas line applications, including couplings, tees, elbows, and adapter fittings.

What is PE gas line?

Polyethylene (PE) gas pipe is a cost effective and proven method for running underground gas lines from propane tanks and natural gas lines to indoor gas systems, as well as outdoor gas-fired equipment, including grills, hot tubs, and gas heaters. More than 90% of all gas pipe installed in the U.S. is polyethylene. Their long-term use is dependent upon maintaining surface integrity without a damaging incident. Connections for these lengthy gas lines can be made quickly and with less hassle when using our line of underground gas compression fittings.

What is the phone number for White Rhino Water Meter?

If you have any questions about our White Rhino water meter pits, call us today at 972.446.1655 or send us a message through our contact form.

Do you need to chamfer a yellow poly pipe?

There’s no need to chamfer the pipe—just smooth away any burrs. There’s nothing to assemble and they’re ready to use straight out of the package. You can use these state-of- the-art fittings with your choice of IPS yellow poly gas pipe that’s approved for use with natural gas and propane.

How to check if a compression fitting is leaking?

Check the compression fitting for leaks after you’ve completed all of the other plumbing connections and turned on the water supply to the pipe. If the compression fitting leaks, use both wrenches to tighten the compression nut gently until the leak stops.

How to install a compression fitting on a pipe?

Slip the compression nut from the compression fitting onto the pipe, then slip on the compression ring. Slide both pieces down so they are 1 inch or so from the end of the pipe. Fit the compression fitting onto the pipe (or fit the pipe into the fitting, as applicable) until the pipe stops inside the fitting.

How to cut a pipe?

Cut the end of the pipe, if necessary, using a tubing cutter. Open the jaws of the tubing cutter and fit it onto the pipe so the pipe rests squarely against the two flat rollers of the cutter. Tighten the cutter so the cutting wheel is snug against the pipe.

What is compression fitting?

A compression fitting is not a specific plumbing part but rather a type of fastening system for valves, water supply tubes and other plumbing fittings. The valve (or other part) has a port where the pipe slips in, and the port has male threads on the outside. Before you fit the parts together, you slide a compression nut …

How to seal a pipe with a nut?

Once the pipe and fitting are together, you slide the ring against the fitting, then thread the nut onto the fitting. The nut compresses the ring between itself and the fitting, and the tapered edges of the ring are wedged tight inside the fitting and the nut, creating a watertight seal.

How to tighten compression nut?

Slide the nut over the ring and thread it onto the fitting until it is hand-tight. Be careful not to cross-thread the nut. Fit one wrench onto the body of the fitting and hold it so that the fitting doesn’t move. Use another wrench to tighten the compression nut about one-half to three-quarters of a turn.

What to do if you can’t get a leak to stop?

If you can’t get a leak to stop, you may have cross-threaded the compression nut, or the compression ring may not be seated properly against the fitting. Remove the nut and check the ring, then reinstall the nut. If the fitting or nut threads are damaged, replace the fitting. Advertisement. Philip Schmidt.

john boy New Member


Pugley Member

It is a legal requirement that you are CORGI registered to commission a gas appliance.

Gaz New Member

yeah, get a CORGI registered engineer in … for the sake of say £100 at least u know its done right … i’m CORGI, so i know the **** that goes on with "cowboys" – just get it done right then at least ure neighbours can sleep at night without the risk of explosion!! hehehehehe

harry Member

you are probably right about corgi registered fitters being the safest bet although i have done my own jobs without any problems.the nearest i have been to being killed was when the gas board re-connected my meter and forgot the fibre washer on the flexible pipe.i entered the cellar some hours later and nearly switched the light on.after the gas board sent another fitter i asked him to have a quiet word with the first guy without causing too much of a fuss.so,registration is a good thing but it does not stop you from having an off day..

Why were compression joints invented?

The whole reason compression joints were originally invented was to avoid sealants and tapes.

When you insert a pipe into a fitting, should you pull it back out?

When you insert the pipe into the fitting you should pull it back out sufficiently to allow it to be drawn back in when you tighten the nut, thereby allowing the olive to seat tightly. Your mistake is pushing the pipe in all the way before you tighten the nut. I am an engineer. If you don’t believe me ask NASA.

Can Boss White be used on gas joints?

Boss white should not be used on gas joints because it hardens. As for the ptfe debate on compression fitting. Jet blue around the fitting side of the olive is all thats needed, it costs peanuts, guarantees the joint, and as plummit said could save you a lot of unpaid work and embarrassment draining down.

Do you need PTFe for olives?

In my experience ptfe is only ever requied on a tapered thread, and even then used sparingly. compression joints (olives) do not need ptfe to seal, if you are relying on ptfe as a "secondary" seal then you are not using the joint correctly.

Do you need PTFe for compression joints?

In my experience ptfe is only ever requied on a tapered thread, and even then used sparingly. compression joints (olives) do not need ptfe to seal, if you are relying on ptfe as a "secondary" seal then you are not using the joint correctly. Some instances require an absence of anything that can remotely get into the system (safety systems on industrial plant etc) in that case use Boss white or other proprietory sealent, I have seen delicate pneumatic instrumentation blocked by particles of ptfe that should not have been there. Whatever you decide to use, please use as little as is needed, excess is wasteful and detrimental to safe operations.

Can Compression Fittings Be Used Twice?

When a compression fitting is used, the ferrule (olive) is pressed against the pipeline; this pressure seals the ferrule to the pipe. Compression fittings are mostly used to connect the tube with threaded components. They give strong support to the segments and pipeline; so they can replace soldering joints.

Can You Overtighten A Compression Fitting?

People prefer compression fittings because they are easy to install and replace. However, one of the most common mistakes is to overtight the fitting.

What is flare fitting?

A flare fitting is a compression fitting used in tubes or pipes with a complicated or inaccessible location. They are considered a soldered joint alternative, but they can be used only with flared pipes. Flared fittings are used in applications that require high pressures, yet the pipeline won’t receive any vibration. Moreover, the installation and removal are more complex than standard compression fittings procedures.

Why do people prefer compression fittings over soldered joints?

Some people prefer compression fittings over soldered joints because they are easy to install and do not need any soldering point nor expert application. Yet, they need a correct installation and removal; otherwise, they will be useless even from the beginning. However, compression fittings are a reliable long-term solution, and in case of any leak, the compression fittings are more effortless to repair than soldered joints.

How to remove compression nut?

On hydraulic systems, the compression fittings have a shutoff valve; this is the male nut. So, hold each nut with the adjustable pliers, move the male nut clockwise and the female nut (shutoff valve) counterclockwise until both are loosened.

How many parts are in a compression fitting?

Compression fittings have three parts: two compression nuts and a ferrule. Some fittings can vary in shape or model according to the type of compression fittings, but in general terms, most fittings have three pieces or more. Then, not all the fitting parts are reusable.

What is a compression fitting?

Compression fittings are used in plumbing to connect two pipe or tube sections. These fittings are composed of two pieces; a compression nut and an “olive” (an inner compression nut named ferrule). The olive shape can vary, but in any case, it is compressed but the nut to line both pipe sections.

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