When using only ptfe tape, consider using thread lubrication to prevent galling of mating parts. Appendix d to show geometric dimensions, tolerances, and requirements for conedandthreaded type tubing and tube fitting end connections. The part number shown below is for a male hex nipple for 38 npt male pipe and 14 npt male pipe in 316 stainless steel. National standard taper pipe npt threads size chart 116 0. Choose from more than 1 million swagelok cad files and sales drawings in multilingual formats. National standard taper pipe npt threads size chart. For example, a 34 npt pipe thread has an outside diameter of 1. Schedule 80 pvc technical information schedule 80 fittings. The e dimension refers to the smallest nominal inside diameter of the part.
Pipe sizes do not refer to any physical dimensions. Anvil pipe fitters handbook 5 gruvlok installation pipe and flange data weld fitting and steel flange data table of contents gruvlok tech. Threads threads utilized on hoke precision instrument pipe fi t. Pipe thread standards explained jamestown distributors. Catalog 4300 pdf section updated october 2017 f visual index application guidelines for tapered threads straight connectors with npt ntpf 3414 and smaller straight connectors with 3414 npt nptf and smaller male. A 34 npt pipe thread has an outside diameter od of. Pipe fittings 1 pipe fittings pipe fittings 116 to 1 in. Forged carbon steel fitting dimensions conform to asme b16. Pipe fittings 4 how to order unilok pipe fittings are ordered by part number as shown as below. Ductile iron flanged fittings when a ductile iron flanged fittings is wanted with a tapped connection, give the size of the tapping required, and designate its location by means of a letter selected from the correct view of the fittings in question. Over the years, in lowpressure hydraulics, npt has been a popular thread for ports and adapter fittings. For example, 1214 npt identifies a pipe thread with a nominal inside diameter of 12 inch and 14 threads to the inch, made according to the npt standard. Customer should limit the number of times an npt fitting is pp60 38 npt 15,000 0. We also offer a number of metric threads to an fitting adapters.
Female npt tapered pipe thread is not available on hose swivel nuts. Schedule 80 fittings schedule 80 and schedule 40 tapered socket dimensions pvc schedule 80 astm d 2467 pvc schedule 40 astm d 2466 american national standard taper pipe threads npt ansi asme b1. Home tech info all technical drawings dwv drawings below you will find pdf s of our drawings categorized by the type of fitting. It is a unionnut assembly with sanitary acme threads. Parker instrument pipe fittings part numbers are constructed from symbols that identify the size and style of the fitting and material used. Tank fitting page g12 66c female connector page g11 170c270c female elbow page g12 tube to tube lanyard valve auxiliary component bulkhead union tube to male nptf tube to female npt tube to metric straight thread link to master table of contents link to section table of contents. Cad templates are available in a variety of 2d or 3d file formats. Pipe pipe thread dimensions nominal pipe sizes do not match any of its actual physical dimensions. Npt thread dimensions machining metalworking scribd. Extra strong wall thicknesses are indentical to stainless steel schedule 80s in sizes thru 12. The male thread on the valve has about two more threads at the large end than the npt in order to provide additional fresh threads if further tightening is necessary. Astm a 197 cupola malleable iron astm a 153 zinc coatings dimensions.
To determine the size of a pipe, the outside diameter of each pipe or fitting must be measured and compared to the table for size identification. Pipe size thread type fitting type pipe size thread type length material pipe schedule pressure rating unilok nace pipe fittings. Swage nipple, bull plug, street elbow, boss, reducer insert and outletetc 2. National standard taper pipe threads size npt chart. Controlled truncation of threads mean the metaltometal thread seal is at root and crest of threads, in. The pipe thread size as shown in column 3 of the table below is measured and based on the inside of the pipe. National standard taper pipe threads size npt chart includes both external and internal pipe thread data. These widely used sanitary fittings are manufactured from both t304 and t316 stainless steel. Nptf threads also known as dryseal are an mprovement to npt. National pipe thread npt ports, an ports and port adapter fittings.
Class 300 malleable iron threaded fittings are marked with the numerals 300, the letters mi, and the size. Stainless steel pipe is available in a wide range of sizes in welded and seamless construction, ex stock or. History for over 150 years, anvil has been a trusted name in piping solutions by consistently providing quality products, service, and support to the pvf industry. Pipe pipe thread dimensions nominal pipe sizes do not match. Dimensions and pressures for reference only, subject to change. The outside diameter of a pipe or fitting must be measured and compared to a table for size identification. Nipples page 5 union balladapters joints page 21 adapters, adapter gaskets, gauge adapter, reducing page 8 pipe caps page 22 pipe plugs page 22 reducing bushings, reducers page 14 couplings page 15 elbows page 17 tees page 19. For npt threads a sealant compound or polytetrafluoroethylene ptfe tape must be used for a.
Tube size nominal wall thickness ordering number c e h dimensions working pressure. When npt ports are used in a fuel system with an line, an adapter fitting to convert from npt to an is required. Table u23 bspt dimensions 1 for bottoming taps only. Type k tube has thicker walls than type l tube, and type l walls are thicker than type m, for any given diameter. Tighten fitting by hand, and then turn it 2 turns with a. Oseal fittings rated to 206 bar 3000 psig for 316ss fittings up to 1 inch and 25mm kinds of pipe end thread npt. Inficon isokf fittings are manufactured according to iso 28611, din 28403 and pneurop 6606. But, to actually determine the size of a pipe, the outside diameter of each pipe or fitting must be measured and compared to the table for size identification. Bevel seat fittings are available in 1 through 4 sizes and they are available in a variety of. Catalog 4300 pdf section updated october 2017 f visual index application guidelines for tapered threads straight connectors with npt ntpf 3414 and smaller straight connectors with 3414 npt. Understanding port threads, adapter fittings, and line sizes.
Pipe thread sizes are designated by the number of sixteenths of an inch. Sizes pipe thread sizes are based on an inside diameter id or flow size. Threading all fittings shall be threaded with american national standard pipe threads ansiasme b1. If desired, compression fittings may also work with. Threaded fittings are ul, cul listed and factory mutual approved for 300psi servce. American national standard pipe thread standards, often called national pipe thread standards for short, are u. Ngt and npt threads the ngt national gas taper thread is the commonly used valvetocylinder connection. Nptf national pipe thread tapered fine also called dryseal american national standard taper pipe thread is a u. A halfinch plastic elbow, for example, has an outside diameter of about 114 inches. Npt national pipe thread national pipe thread is a u. Iso 2281 parallel thread bspp the pressure ratings are at ambient temperature. They include both tapered and straight thread series for various purposes including rigidity, pressuretight sealing, or both. Pipe fittings and port adapters dimensions and pressures for reference only, subject to change.
Threaded npt or pt type, socketweld, buttwelding size nps 184 dn 6100 rating pressure threaded end 2000 3000 6000 lbs. Choose from our selection of metal pipe and pipe fittings, tubing and tube fittings, hose and hose fittings, and more. Koolances product warranty does not cover the use of 3rdparty coolants, coolant additives, or corrosion. Npt tapered threads seal in theory by interference. Pipe size and thread size information best materials. Use this guide to help you find the pipe and fitting sizes you need for your next project. Their inside diameters must be large enough to fit over the pipes outside diameter. B od tube compression part pipe a npt tubing b material specifications feature 971 450 18 516 od steel zinc plated seamless steel tube. Since there are several variables that enter into determining coefficient of friction material, pipe dope, teflon tape and by extension torque, it is not practical to use torque. Join the grabcad community today to gain access and download. Tapered pipe threads npt or iso 71bspt allowable pressure ratings for male and female threads are based on asme b31. Nptf and bspt dimensions male nptf female nptf table u22 nptf dimensions 1 for bottoming taps only. How to determine npt national pipe thread size male npt is denoted as either mpt or mnpt female npt is either fpt or fnpt pipe thread sizes do not refer to any physical dimension.
Compression fitting selection guide the compression connector family is ideal when working with any rigid tubing, including tubing made from fluoropolymers pfa, ptfe, fep, pvdf, from other rigid plastics nylon, polypropylene, polyethylene, and from metals. While this implies a greater degree of precision than is ordinarily achieved, these dimensions are the basis of gage dimensions and are so expressed for the purpose of eliminating errors in computations. The dimensions of the npt thread are given to four or five decimal places. The designation an stands for armynavy and calls out military specifications milspec for dimensional standards of hydraulic lines, hoseend connectors, and port adapter fittings. Our quality fittings are the standard components for all vacuum and high vacuum applications. The grabcad library offers millions of free cad designs, cad files, and 3d models.
Pipe pipe thread dimensions nominal pipe sizes do not. Dimensions dimensions are for reference only and are subject to change. Each thread size has a defined number of threads per inch tpi, or pitch. Pvc schedule 80 pipe and fittings pvc schedule 40 pipe and. Dimensions in parentheses are millimeters mm npt09 page npt1 2121 ebco drive, suite 1 erie, pa 16506 usa ph. Nptf national pipe taper fuel threads have the same taper 34 per foot and 60. Class 150 malleable iron threaded fittings have no pressure class markings. Schedule 80 pvc technical information schedule 80 fittings tee socket x socket x socket continued tee reducing socket x socket x socket page 9 suitable for oilfree air handling to 25 psi, not for distribution of compressed air or gas spears manufacturing company. Universal fittings npt to npt fitting free shipping on. Link to master table of contents brass fittings link to. Each thread size has a defined number of threads per inch tpi.
Bevel seat fittings provide a secure sanitary joint, fully approved and meeting 3a standards. Cctf malleable iron fittings are designed to conform with the following industry standards. Each type represents a series of sizes with different wall thicknesses. Koolance liq702 or liq705 coolants are strongly recommended to help avoid issues with mixed metals or biological growth. The outside diameter of each pipe fitting must be measured and compared to the table for size identification. Thread dimensions normal engagement length of npt thread in. Astm standard sizes, with the actual outside diameter always 1 8inch larger than the standard size designation. The following part number, phrn08n04nssis designated for reducing hex nipple, 12 m npt x 14 m npt, 316ss. A 34 npt pipe thread has an outside diameter od of 1. Tolerance for centerlinetoface dimensions on fittings. All earls swivelseal hose ends are designed to provide little or no restriction when used with the corresponding an fitting size. Ranging from 1032, 1428 and 116 npt to 38 npt, including metric m3, m5 and m6 captured oring design provides a superior seal ensuring a leak resistant fitting smaller shank behind the barb allows polyurethane tubing to relax, providing a tighter grip and seal smoother tubing approach angle eases tubing installation. The example shown below describes a male hex nipple for 38 npt male pipe and 14 npt male pipe in 316 stainless steel.
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