plumbing - Is IPS threading compatible with NPT threading?
2012年1月21日 · According to the Googles, IPS is Iron Pipe Straight thread. It's meant to seal on a washer-shaped gasket (like the threads the hose for your toilet or faucets attach to). NPT is a tapered thread, designed to seal on the threads, which is why you put pipe tape on them - to lubricate them and help the threads deform and create a seal.
light fixture - Hanging Chandelier by Threaded Rod - Home …
2022年7月22日 · A 1/4 IPS Pipe must be installed through the junction box and secured to a structural member of the building. This item must hang independently of the junction box. Then install the threaded nipple into the 1/4 IPS pipe."
Should an underground HDPE gas line be sleeved in PVC?
2021年8月4日 · By the way: IPS is not a type of tubing. It's a dimensional standard for tubing (iron pipe size). The alternative to IPS is CTS (copper tube size). HDPE tube is often offered in both flavors, especially for the 1/2" to 1" sizes.
How tight should threaded brass pipe fittings be?
2012年3月3日 · As a general rule, fittings with tapered pipe threads (NPT) should not be assembled to a specific torque because the torque required for a reliable joint varies with thread quality, port and fitting materials, sealant used, and other factors. (Source: Parker Hannifin Catalog 4300 Port End Assembly, page T7)
plumbing - When should pipe dope vs thread tape be used?
2021年9月6日 · The correct answer is to use pipe dope the Teflon tape over the pipe dope. Teflon tape is not a sealant of any sort is only a thread lubricant. A true pipe thread sealer is pipe dope. As I just asked a sprinkler fitter why he was pipe doping then Teflon taping all pipe threads and that was the answer he gave me.
plumbing - IPS thread issues - Home Improvement Stack Exchange
2018年5月15日 · IPS means Iron Pipe Size and references standard iron/steel pipe nominal inside diameter; "nominal" because it is actually the OD that is standardized. IPS pipe is commonly threaded to NPT (National Pipe Thread), which is indeed a tapered type thread. It seems to me that by your description all the pieces you have would have NPT.
How do I pressure test a natural gas line and what do the valve ...
I have worked for a Gas Company- for 42 years. 1st: if you have run/installed new gas piping, remove all shut off valves- cap the pipes/ can use teflon pipe paste on the threads- black pipe or galvanized (which-ever) Install pressure test-gauge, pump up to 10 lbs (30 lbs is way to excessive.If test is good- bleed off test pressure.
Is flexible gas pipe safe to use for main or long runs?
2013年10月22日 · Instead he laid a whole new CSST line right back to where the original line fed from the main pipe that also feeds the furnace and water heater. The system is electrically grounded. This method was a lot cheaper and easier than using black pipe, and avoided having to rip down much of the ceiling in the floor below.
Shower valve: connecting 1/2 inch pipe to 1 inch shower valve …
2018年10月7日 · Alternatively a special seal, now missing, might have fit in a groove and pipe dope was used to try to make it seal. Pipe dope is to be used to seal threads. A union seals with two clean flat surfaces clamped together by threads, or with a special seal (not pipe dope).
Can I reseal a pipe thread that's leaking?
2024年2月15日 · Applying Teflon tape and pipe dope together doesn't make any sense. It's like applying lubricant on a joint before caulking it. Teflon tape is the lubricant in this framework. It allows better engagement for tapered threads like NPT. NPT's taper make the threads self sealing, so the lubricant alone is enough. Pipe dope is an actual sealant.