Table 1 lists the many varieties of copper tube that can be used in fuel gas distribution systems in the United States, as well as their identification and availability. For many years, Types K and L copper tube (ASTM B 88) and ACR tube (ASTM B 280) with outside diameters up to and including 1 inch have been employed in fuel gas systems. Type L is typically used for interior distribution systems, while Type K is typically utilized for any underground lines. Seamless copper tube Type GAS (ASTM B 837) is routinely used and needed in Canada for gas distribution systems, despite not being widely used in the United States.
Table 2 shows the size of copper tubing used in gas systems. Outside diameter (O.D.) is used to identify tube and fittings in fuel gas systems rather than nominal diameters. In their references and when ordering, designers and installers should be explicit about size designations.
If the gas contains more than 0.3 grains of hydrogen sulfide per 100 standard cubic feet (scf) of gas (0.7 mg/100 L), copper and copper alloy tube (excluding tin-lined copper tube) should not be utilized.
What is the finest propane gas line to use?
The service plumbing, also known as the yard line, is the gas line that travels between the tank and the structure that houses the gas appliances. Copper tubing or plastic polyethylene piping are commonly used in propane yard lines. For the entire exterior section of the installation to be safe and serviceable, the service piping must be installed appropriately and legally in conjunction with the propane tank.
The visible portion of the yard line is where it emerges from the ground adjacent to the tank, as well as where it enters the structure or links to a source of usage, such as a generator or pool heater. For any section of a propane gas service line, only certified materials and fittings should be utilized. PVC, rubber hose, and flex lines are prohibited and should not be utilized in any component of the gas service line.
For propane, what type of copper tubing is used?
Copper tubes of kinds K and L, as well as ACR tubes, have long been utilized in fuel gas systems. Interior distribution systems employ Type L, whilst underground lines use Type K.
What size propane pipe do I need?
Section 1 requires 1/2 inch pipe to feed outlets A and B, or 35 cubic feet per hour. Section 2 requires 1/2 inch pipe to serve outputs A, B, and C, or 94 cubic feet per hour. 3/4 inch pipe is required in Section 3 to supply outlets A, B, C, and D, or 230 cubic feet per hour.
Is it possible to use copper tubing to transport propane?
Copper tubing and fittings were approved for use in gas distribution systems, including propane, by the International Association of Plumbing and Mechanical Officials (IAPMO) in 1999.
What kind of propane pipe is used inside the house?
Propane gas is transported from its storage tank to the first regulator via copper or black iron pipe. These pipes are non-corrosive, non-flammable, and can withstand high pressure. From the first regulator to the second regulator to the furnace, more copper or black iron piping is utilized to complete the supply line. Both above and below ground, the pipe can be employed.
For a gas stove, what size gas line do I need?
Installing a gas range or water heater is a straightforward task that requires only a few basic tools and widely available materials. You can also complete the job safely yourself if you use the correct supplies and follow the instructions carefully. For a hook-up, a professional may charge as much as a few hundred dollars.
In this post, we’ll teach you how to hook up a gas range with a flexible, corrugated connector (a gas clothes dryer is similar), and how to hook up a water heater with threaded black steel gas pipe.
Most home centers and well-stocked hardware stores carry flexible corrugated gas connections as well as gas pipe and fittings (black). Flexible connections made of stainless steel or coated brass are the only ones marketed these days, and the only ones you can use safely and legally. Corrugated connectors constructed of uncoated brass or other metal, which were sold until the 1980s, have been shown to be dangerous. Do you have one in your home? Now is the time to replace it!
The most crucial step in ensuring a secure installation is to get the appropriate connector. Here are some things to keep an eye out for:
- Purchase a connector that is clearly labeled “range” or “dryer” for the equipment you’re connecting. A range connector’s corrugated tube is usually 1/2 in. dia. i.d. (inside diameter), while a dryer connector’s corrugated tube is 3/8 in. dia. i.d. These measurements are not always printed on the package, but they will be for either the range or the dryer.
- Purchase a connector that includes the end connector fittings you require (see Photo 3). The gas line into your kitchen is usually 1/2-in. black threaded pipe, with a male (external threads) or female (internal threads) 1/2-in. fitting connecting it to the stove. Use a black gas pipe fitting on the line to accommodate the end connector fitting if you can’t find a connector package with end fittings that match what you need for the gas line. On the gas line, for example, we show a 1/2-in. x 3/4-in. coupling to accommodate the 3/4-in. end connector fitting in Photos 2 and 3. (See How to Connect Gas Pipe Lines for further information on possible connections and how to connect to soft copper supply lines.)
- Use a long connector to give yourself enough of room to work between the gas stove and the wall. They are available in lengths ranging from 24 to 60 inches.
- A flexible connector should not be reused; if you obtain a new appliance, you should also purchase a new connector. Follow the connector installation instructions to the letter. Our photos 1 through 5 show how this is done in real life. Here are a few more guidelines:
- Avoid kinking or forcing the corrugated connector into abrupt bends, as this could cause it to break.
- Always look for leaks in your work (Photo 6). Gas leak detectors can be found in home improvement stores, hardware stores, and on the internet.
- Although it is not always necessary to have a range hookup tested, we strongly advise you to get your work checked by a local gas company or plumbing inspector.
Is it possible to utilize compression fittings with propane?
Flared brass fittings of a single 45 o flare type are used for copper natural gas systems with flared tube connections, as shown in Figure 15. An NPS threaded-to-flared copper adapter is used to connect to steel pipe. Compression fittings are not permitted in a gas pipe system unless the authority with jurisdiction permits them.
All tube fittings for natural gas systems have a pressure rating of greater than 125 psig, although they should not be utilized at pressures higher than those permitted by local laws. Unless the branch is a drop to an appliance and is furnished with a dirt pocket, branches (tees) should be fitted with the branch on the side or at the top of the line (drip leg).
Brazed joints with ASME/ANSI B16.22 wrought copper fittings may be utilized in copper gas distribution systems in addition to mechanical joints, or in many cases instead of mechanical joints. When brazed connections are required, a brazing alloy with a melting temperature exceeding 1,000 F should be used. The phosphorus content of the brazing alloy must be less than 0.05 percent.
Gas installation standards are designed to keep gas from accumulating in joints behind walls or other inaccessible areas where leaking could go undetected. However, joints in these areas may be unavoidable at times. Because mechanical joints are forbidden in inaccessible locations, brazed joints should be utilized if the authority in charge approves them. To ensure a leak-free system, these joints should be inspected and tested prior to enclosure. Long, flexible lengths of copper tube can simply be used to minimize joints, especially in inaccessible regions.
Each appliance must have approved appliance stops (manual shut-off valves) that are easily accessible. Systems using a distribution manifold may have all stops at the manifold if the authority having jurisdiction approves. Dirt pockets are required at the entrance of an appliance regulator or at the base of a vertical drop to an appliance in some countries. Figure 16 shows a dirt pocket composed of steel fittings with an NPS to copper adaptor and a flare nut acting as a union.