All earls swivelseal hose ends are designed to provide little or no restriction when used with the corresponding an fitting size. The outside diameter od of a pipe or fitting must also be measured. Iso 2281 parallel thread bspp the pressure ratings are at ambient temperature. Npt thread dimensions machining metalworking scribd. Hydraulic flanges and components the fitting authority. Pipe thread sizes bsp threads a list of 15 thread sizes are defined by the standards, ranging from 116 to 6. Determining what size pipes you need for your project can be confusing.
Truncation at the crest and root of npt form threads to allow for an interference fit, closing. For example, stainless steel tubing should not be used with brass fittings. These threads create a seal through metaltometal wedging or slight deformation of the threads. Parallel threads will often require an oring or thread tape to ensure a tight seal. Nptf, npsc, npsm, ngt, sae, bspt, bspp and in any combination. Pressure pipe and fittings dimensional catalog table of contents download our tech tools app for dimensional info, tech calculators and more on your mobile device. Swage nipple, bull plug, street elbow, boss, reducer insert and outletetc. Npt, 38 cross union, 46 applicationspecific fittings kwikclamp flange to swagelok tube fitting, 47 orifice plate fitting, 48 boredthrough fittings for thermocouples, dip tubes, and heat exchanger tees, 20 tube adapters tube adapter information, 49 male npt and isobsp tapered thread rt, 50 isobsp parallel thread rs and rp, 51 saems. National standard taper pipe threads size npt chart includes both external and internal pipe thread data. Table u23 bspt dimensions 1 for bottoming taps only. Clamp tube flare between nut and nose of fitting body by screwing nut on fingertight. While many variations are offered, column four in the chart shows which an size corresponds to each npt size when inside diameters flow dimensions are considered.
Thread and end connection identification guide swagelok. Thread sealant is recommended for use with npt threaded holes. Controlled truncation of threads mean the metaltometal thread seal is at root and crest of threads, in. Aarp health insurance plans pdf download medicare replacement pdf download aarp medicarerx plans united healthcare pdf download medicare benefits pdf download medicare coverage pdf download medicare part d pdf download medicare part b pdf download 1 2 npt thread. Tighten with a wrench an additional 14 to 12 turn past finger tight for a metaltometal seal. Swage nipple, bull plug, street elbow, boss, reducer insert and outletetc 2.
Catalog 4300 pdf section updated october 2017 visual index pipe fittings and port adapters this section contains adapters with thread types including. Customer should limit the number of times an npt fitting is. Nptf and bspt dimensions male nptf female nptf table u22 nptf dimensions 1 for bottoming taps only. Pipe pipe thread dimensions nominal pipe sizes do not match any of its actual physical dimensions.
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. The next step in identifying your thread type is to determine the pitch. National standard taper pipe threads size npt chart. The ladish 55 catalog is provided as an industry reference only. Forged carbon steel fitting dimensions conform to asme b16. Adaptors are available from male or female bsp and also npt to clamp, flange, idf, rjt, din or sms.
Never, never try to mate a bsp fitting with an npt or nps fitting if the pressure holding capability is at all critical. Pipe size thread type fitting type pipe size thread type length material pipe schedule pressure rating unilok nace pipe fittings p hrn 08 n 04 n ss pipe size. Tapered pipe threads npt or iso 71bspt allowable pressure ratings for male and female threads are based on asme b31. Metric swagelok tube fittings metric tube fittings have a stepped shoulder on the body hex. Bsp british standard pipe and npt national pipe thread fittings are generally available from 18 up to 4 sizes dimensions in accordance with bs 1740 and are manufactured in 316 stainless steel.
I do three different parts that have a 18 npt feature, and the thread depths are different on all three at customer requests they are for little plastic vent ports but i have a new part that came in and they want a standard depth thread for what looks like a grease zerk. Made entirely of heavy gauge aluminum, this model is perfect for the office, warehouse, or factory floor. Looking for downloadable 3d printing models, designs, and cad files. Standard flare fitting materials include brass, carbon steel, and stainless steel. Download pdf pc100 simply determines the size of pipes from 116 to 12 npt. Always giving you top of the line service and quality. Iso 71 and npt threads can be difficult to identify because they are very close in design. Swagelok tube fitting componentsbut they cannot be manufactured in accordance with swagelok engineering standards, nor do they benefit from innovations in design and manufacture defined by 36 active swagelok tube fitting patents issued since 1989. Nptf threads also known as dryseal are an mprovement to npt. Npt national pipe thread national pipe thread is a u.
These needle valves, fittings, line filters, check valves, safety heads and rupture discs are engineered to the highest standards of repeatable quality. Choose from our selection of npt plugs, including stainless steel pipe and pipe fittings, brass and bronze pipe and pipe fittings, and more. The following part number, phrn08n04nssis designated for reducing hex nipple, 12 m npt x 14 m npt, 316ss. 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.
National standard taper pipe threads size npt chart engineers. Npt tee dimensions pdf download available waverley brownall. Threaded npt or pt type, socketweld, buttwelding size nps 184 dn 6100 rating pressure threaded end 2000 3000 6000 lbs. Npt has a tapered male and female thread which seals with teflon tape or jointing compound. Pipe pipe thread dimensions nominal pipe sizes do not match. For example, a 34 npt pipe thread has an outside diameter of 1. Cctf malleable iron fittings are designed to conform with the following industry standards.
Npt valves, fittings and tubing high pressure company. A wide range of configurations are available such as straight connectors, elbows, union, tees, and crosses as well as unique special adapters. Oseal fittings rated to 206 bar 3000 psig for 316ss fittings up to 1 inch and 25mm kinds of pipe end thread npt. The 116, 18, 14, and 38 sizes have a dissimilar pitch, which causes a misalignment of the threads. Flare fitting design allows for repeated disassembly and reassembly with no need to replace any components. 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. Mpt and fpt are simply names for identifying the type of pipe thread for an application.
Mark final tightening position by extending the existing assembly instructions for nptf and bspt pipe threads female pipe port male pipe end. All the threads in this section are made to industry specifications with. Pipe fittings and port adapters dimensions and pressures for reference only, subject to change. Available in a complete range of carbon steels, stainless steels, alloy steels and nonferrous metals certified to astm, asme, and military standards. Data bolt templates general welding information conversions drop nipple and teelet installation pipe thread standards table of contents gruvlok installation and assembly. The large and strong threads on 1827 ptf pipe thread grease fittings are suited for industrial use. Pvc schedule 80 pipe and fittings pvc schedule 40 pipe and. Npt nptf, bspt, and metric tapered are examples of tapered threads. Jic fittings and jic adaptors,37 degree fittings by fav. Both npt and bsp are pipe thread standards for screw threads used on pipes and pipe fittings to seal pipes. The e dimension refers to the smallest nominal inside diameter of the part. Npt female hose tailbarb radiator necks steel an male flare diff filler with cap npt female o2 sensor bung o2 sensor bung plugs stainless steel an female oring port an male flare bspt female npt female o2 sensor bung fitting identification charts an hex nut size chart male an size chart male npt size chart. Aug 26, 2019 37 degree jic flare fitting dimensions aug 26, 2019. It is not a reflection of our current product offerings.
Astm a 197 cupola malleable iron astm a 153 zinc coatings dimensions. 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. G catalog 4300 pdf section updated february 2017 pipe swivels pipe swivel connections are one of the most traditional types of hydraulic connections. Bsp vs npt thread yuyao jiayuan hydraulic fitting factory. Dimensions and pressures for reference only, subject to change. Pick the right npt national pipe taper fittings with this chart of npt and npsm thread dimensions and pipe sizes, both internal and outer measurements. The flank angles of the threads are also different between npt and bsp. It is crafted with heattreated brass for strength and it features a sleeve guard that reduces the potential of accidental. Nipple, swage nipple, bull plug, street elbow, boss, reducer insert and outletetc 2. Hex head bushing of one size reduction should not be. Nptf national pipe thread tapered fine also called dryseal american national standard taper pipe thread is a u. 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.
Learn how to identify the right type thread for your industrial components npt, bsp, jis, sae or metric. Threaded npt or pt type, socketweld, buttwelding size nps 184. Pipe fittings male npt a e close nipples npt size in. Nuts blind f flat a ordering information and dimensions dimensions are for reference only and are subject to change. Npt tee dimensions pdf download available npt tee dimensions for metric and imperial sizes including, 14.
Ptf fittings are sometimes generically referred to as 18 npt, and may be threaded into npt or nptf threaded holes. Pipe pipe thread dimensions nominal pipe sizes do not. Apr 19, 2016 the taper rate for all npt threads is 11634 in. The vco face seal fitting design has been helium leak tested to a maximum leak rate of 4. The flank angles of the threads are also different between npt. Npt threads have a 60 angle and have flattened peaks and valleys. Aarp health insurance plans pdf download medicare replacement pdf download aarp medicarerx plans united healthcare pdf download. Npt valves, fittings and tubing high pressure equipment company has developed a line of npt products to assure safe and easy plumbing through 15,000 psi. Dimensions inches mm pipe fittings pressures to 15,000 psi 1034 bar see figure 1 autoclave engineers pipe fittings, p series, are designed for liquid and gas applications. Understanding port threads, adapter fittings, and line sizes. Anvil pipe fitters handbook 3 gruvlok installation pipe and flange data weld fitting and steel flange data table of contents gruvlok tech. Npt threads are used for joining and sealing pipe fittings in low pressure air or liquid applications.
The size number was originally based on the inner diameter measured in inches 25. Hackney ladish manufactures an industry leading line of weld fittings elbows, reducing elbows, tees, reducing tees, concentric reducers, eccentric reducers, crosses, and caps in sizes from 12 to 48 in carbon and high yield steel. Npt nps and bsp threads are not compatible due to the differences in their thread forms, and not just the fact that most diametrical sizes have a different pitch. Npt male coupler is used to connect components to an air compressor. Unilok pipe fittings are ordered by part number as shown as below. If the center line of the fitting and the longitudinal axis of the gauge are parallel, the seat angle and. The designation an stands for armynavy and calls out military specifications milspec for dimensional standards of hydraulic lines, hoseend connectors, and port adapter fittings. Legines brass bulkhead fitting, 14 npt female bulk head pipe fitting, bulkhead coupling, bulkhead tank fitting 3416unf 0. National standard taper pipe npt threads size chart pyromation. Nov 11, 2016 npt tee dimensions pdf download available npt tee dimensions for metric and imperial sizes including, 14.
Their inside diameters must be large enough to fit over the pipes outside diameter. 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 npt threads size chart 116 0. For straight fittings, tighten using mean to maximum recommended t. National standard taper pipe npt threads size chart. Prochem offers only the highest quality fittings, and by utilising a reduced tolerance, ensures fittings will go together every time. Basic dimension of national standard npt pipe threads. While the pipe and fitting materials may be compatible with the intended medium, the solvent cement may not be. Pipe threads used in hydraulic circuits can be divided into two types. Many people assume pipe size is the outer diameter of the pipebut pipe size actually refers to what is called nominal diameter. Flare fittings are easy to disassemble and may be reassembled repeatedly. Problems arise when threading a npt male thread form into a bsp female straight thread form.
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