Table T26 — Port Detail — ISO 1179-1 1) Conforms to proposed revision. of Threads/Inch UNC UNF UNEF 8UN NPT METRIC Dia. ISO 228-1, Pipe threads where pressure-tight joints are not made by the threads. Also Known As. Hydraulics Table of Contents 1 Introduction 3 Using the Tools Measuring Threads 4 Measuring Thread Pitch 5 Measuring Seat Angle 5 Compare Measurements to Tables 6 To install the larger sizes align the tongue and pocket of the couplings appropriately and tighten the nuts alternately to the specified bolt torque. BSP Size. Simply use the code when ordering Akron product to obtain a proper fit. British Standard Pipe (BSP) is a set of technical standards for screw threads that has been adopted internationally for interconnecting and sealing pipes and fittings by mating an external thread with an internal (female) thread.It has been adopted as standard in plumbing and pipe fitting, except in North America, where NPT and related threads are used. Machine Screw Size Number of Threads Per Inch Minor Dia. British Thread BSPP/BSPT 1/8 - 28 1/4 - 19 3/8 - 19 1/2 - 14 3/4 - 14 1 - 11 1 ¼ - 11 1 ½ - 11 Copper NylonAir Brake Thread 7/16 - 24 17/32 - 24 11/16 - 20 13/16 - 18 1 - 18 . Parallel female thread and tapered male thread (taper 1 : 16). 3) See page N6 for O-ring and retaining ring ordering information. BRITISH STANDARD PIPE PARALLEL / BRITISH STANDARD PIPE TAPER. taper threads. All the On the appropriate thread identification reference table, locate the nominal thread diameter . Major diameter of the thread Corresponding pipe . Imperial Thread Chart (Threads per inch) Major Major BSF BSCY Brass BSW UNC UNF BA Size Dia " Dia mm 55° 60° 55° 55° 60° 60° 47.5° 0G 0.0600 1.524 80 1/16 0.0625 1.588 60 10BA 0.0669 1.699 72.6 1G 0.0730 1.854 64 72 9BA 0.0748 1.900 65.1 5/64 0.0781 1.984 56 2G 0.0860 2.184 56 64 8BA 0.0866 2.200 59.1 3/32 0.0938 2.381 48 7BA 0.0984 2 . Strictly speaking, BSP threads should only be referred to using the fractional inch-based numbers, eg, 3/8, 1/2, 3/4, 1, etc. When properly assembled there will be a small equal gap between the adjacent bolt pads. Subtracting 1/4 gives a thread size of 3/4, also known as "dash" 12. British Standard Whitworth thread chart, BSW thread chart showing TPI and drill sizes. The thread form follows the British Standard Whitworth thread. The flank angles of the threads are also different between NPT and BSP. 1/2 Inch BSP - Bathroom basin taps and kitchen sink taps, radiator connections, shower hoses, old outside tap outlets, toilet cistern fill / float valves. JIC, SAE O-ring & Flat Face threads measure as listed below. BSPP : BSPP male with conical 30° seat (60° included angle) seal against matching conical 30° seat of BSPP female swivel. SPEARS® METRIC FITTINGS PN16 PVC AND CPVC METRIC FITTINGS (PG 190/192) Injection Molded. Canadian Standard 2 1/ 2" Hose Threads Size Description Thread Codes Odm Tpi 2 1⁄ The size was originally based on the inner diameter measured in inches of a steel tube for which the thread was intended. American National Pipe - NPT/NPS American National pipe (NPT, NPS), Like British Standard Pipe (BSP), is designated by . Pitch Diameter mm d2=D2. Dimensions and pressures for reference only, subject to change. To find the thread size: 1) Measure the O.D (outer diameter) of the BSP thread. THREAD DATA CHARTS METRIC THREAD -- EXTENDED THREAD SIZE RANGE (ISO) Thread Height Male Thread = h3 Thread Height Female Thread = H1 Sorted by thread class Click here to return to the thread data chart page index. The first number listed is the size of thread, the second number is the threads per inch. Thread Data - BSP Thread Dimensions - Internal Dimensions in inches External Dimensions in inches B.S. Whitworth Tapered Pipe Thread DIN EN 10226-1, DIN EN 10226-2 formerly known as DIN 2999. 1/4″ (6mm) from thread diameter measurement for nominal pipe size. Minor Diameter Male Thd. Available in tube sizes from 1/16 to 2 in. An appropriate sealing compound can be used in the thread to ensure a leak-proof joint. The 1/16", 1/8", 1/4", and 3/8" sizes have a dissimilar pitch, which causes a misalignment of the threads. The threads we use in our radiators Actual Diameter (Imperial) Actual Diameter (Metric) 1/8 ". BSP Threads. Table 3 provides data on pipe sizes associated with these threads. Neither the word inch, nor the symbol " should be used, because no such references are used in the Standards. 2003 Table 1 Thread dimensions British Pipe Thread ( Whitworth Form) -- Parallel (BSPP/BSPF) -- (G) . and 2 to 50 mm . BSPT (R/Rp) - British Standard Tapered Pipe, for pipes and tapered thread. Nominal Size BSPT. The thread form follows the British Standard Whitworth thread. i.e BSP G and BSP R. I had this problem before and I simply used a note on the drawing. 19 jan 2018 C AT ALOG 1 4 R P: 1-800-265-8772 F: 1-888-252-6380 www. and some extra as shown are also Brit. If you have any questions please contact us or check out our fittings with BSPP/ BSPT (G . These are sometimes denoted by the letter R, for example R1/2" means a taper 1/2 inch BSP thread. Actual Diameter (Imperial) Actual Diameter (Metric) 1/8 ". At certain sizes, NPT and BSP share the same number of threads per inch - at ½" and ¾" - but at all other sizes the two are quite different. NPT has a 60° thread where the BSP has a 55° thread. d3 Thread Height H1 Tap Drill Diameter mm G1/8 1/8" BSPP 9.728 0.907 28 9.147 8.566 0.581 8.70 BSP Size. cast in multiple segments. British Standard Pipe BSP thread chart, BSP thread chart showing TPI and drill sizes. parallel (straight) threads. SIZE: TPI: MAJOR (EXT) MINOR (INT) TAP DRILL: 1/8" 28: ISO 1179-11) — Flat Face Port with British Standard Pipe, Parallel (BSPP) Threads (DIN 3852, Part 2) *Class 2A or 2B Table G1 — Thread Conformance Standards Table G2 — Standard Material Specifications for Industrial Pipe Fittings and Adapters Introduction This Section contains adapters with thread types including: NPT, NPTF, BSPT, BSPP, SAE UN/UNF, and Metric. BSPP Thread Dimensions Calculator shows dimensions, tolerances and designation for fastening pipe threads for thread sizes from 1/16 to 6 according to ISO 228 - 1 standard. (BSP Taper Sizes up to 4 in.dia. British Standard Pipe(BSPP, BSPF) Thread Form r = Basic Radius = * 137329 p h = Basic Depth of Thread = *640327 p p = Pitch = 1/t.p.i. Tap Drills Clearance Hole Drills Aluminum, Brass & Plastics 75% Thread Stainless Steel, Steels & Iron 50% Thread All Materials Close Fit Free Fit No. Note that it is common to have the thread diameter for different threads listed multiple times . Thread Designation BSPT. Major Dia. These threads come in 2 versions: parallel (BSPP), and tapered (BSPT). If you have any questions please contact us or check out our fittings with BSPP/ BSPT (G . British Standard Pipe Taper thread (BSPT) whose diameter increases or decreases along the length of the thread. 9.8.001.06 BSP Pipe Fittings Double Stacking S B D1 E B Male parallel BSP thread Product B D1 E S number thread A/F BSP 36 0452 01K 1/ 8" 44 14 4,5 36 0452 02K 1/ 4" 50 17 5,5 36 0452 03K 3/ 8" 62,5 22 9,2 36 9452 04K1 / 2" 74 27 10,5 Elbow Banjo Body a . Size Range: 20mm through 63mm socket, actual "d" 1/2" through . in the table have been tested to the requirements of ECE R110. Also referred to as British Standard Taper Pipe or Pipe Taper, or Conical Thread. Adapter Sizing Chart Thread . BSP THREADS DIMENSIONS (in mm) Model A BSP B BSP C F H L M N SW VBO 1/8 1/8 1/8 16.9 20 5.5 43 24.5 30 15 VBO 1/4 1/4 1/4 20.5 25 7 50 32.2 33 . BSP Thread Chart . An appropriate sealing compound can be used in the thread to ensure a leakproof joint. BSPP - Form B - Seals using a metal . Use of thread sealant is recommended for NPT male and NPT female connection. Some important notes from the ISO 228 - 1 standard: - Both internal and external threads are parallel threads. Just to confuse things, often the T in BSPT refers to Thread and doesn't indicate either . BSPP Thread Dimensions Calculator shows dimensions, tolerances and designation for fastening pipe threads for thread sizes from 1/16 to 6 according to ISO 228 - 1 standard. Pitch mm p. Threads per inch tpi. BSPP (G) Thread size (inch) Major Diameter (mm) Minor Diameter (mm) TPI NPT and BSP thread pitches (threads per inch) are listed below. BSP Thread Chart - Free download as PDF File (.pdf), Text File (.txt) or read online for free. BSPP / BSPT. 2) 90 durometer nitrile is standard for hydraulic applications. T Turn to the Tapered Thread Identification Reference Tables beginning on page 13 . d3=D3. The most common types of Whitworth thread are: BSPP (G) - British Standard Pipe Parallel. NPT-ANSI B1.20.1** Tapered Thread BSP-BS21,DIN 2999,ISO 7/1 Thread ASTM STANDARD DIMENSIONS STANDARD COMPARISONS SPEARS® IPS-to-Metric transition unions are listed by nominal size. Threads: The standard K4 products are manufactured with the thread forms listed below: BSPP Threads: ISO 228-1 G BSPT Threads: ISO 7/1, JIS B 0203 NPTF Threads: SAE J476, ANSI B1.20.3, FED-STD-H28/8 Reference Locations Dynamic Pressure Ratings: Please refer to the last column of the part number tables located on the following pages of this Size: Thread Form Type: Major Diameter mm d=D: Pitch mm p: Threads per inch: Pitch Diameter mm d2=D2: Minor Diameter Male Thd. Note that the BS 21 is withdrawn, superseded and replaced by BS EN 10226-1:2004, BS EN 10226-2:2005, BS EN 10226-3:2005. 0.35 inch. minor d1 = D1. There are two types of BSP threads: BSPT: British Standard Pipe Taper -also known as "R" or "Rc" threads BSPP: British Standard Pipe Parallel -also known as . Thread (RT), 18 ISO/BSP Parallel Thread (RS), 19 ISO/BSP Parallel Thread (RP), 20 Bulkhead NPT, 21 SAE/MS Straight Thread (ST) and Long . Designation of thread. Measure NPT male thread OD and NPT female thread ID at first full thread near end of fitting. BSPP O Ring male connector has straight threads and O Ring with metal Retaining Ring. You will find this thread on oil and petrol tanks. Major Diameter mm d=D. For example, a BSP parallel male thread measures out to O.D 1". or Dia. American Taper Pipe Thread for Dryseal joint without sealant compound. Thread Height H1. A list of 15 thread sizes are defined by the standards, ranging from 1/16 to 6. ISO Metric profile External (bolt thread) Internal (nut thread) Basic mm Size mm Thread Designation Simple Thread Designation Pitch . The most common types of whitworth thread are: • BSPP (G) - British Standard Pipe Parallel • BSPT (R/Rp) - British Standard Tapered Pipe, for pipes and tapered thread. Nominal Size BSPT. Minor Diameter Male Thd. Major diameter is slightly less than the actual outside diameter of the threads. Thread Designation BSPT. This time I would like to put the thread . at the gauging point. In particular, the commounly accepted metric (mm) equivalents of these inch sizes, eg, 10mm, 15mm, 20mm, 25mm . Taper and Parallel. BSPT (R/Rp) - British Standard Tapered Pipe, for pipes and tapered thread. Lower deviation. When I use the HOLE TOOL, I only have the options for ISO, UNF & UNC threads. Major diameter is slightly less than the actual outside diameter of the threads. BSP = British Standard Pipe, or BSPP = British Standard Parallel Pipe, or BSPF = British Standard Parallel Fixed (55 degree profile). BSP Threads Dimensions in Inches except where stated Thread Form Data Tapping Drill Clearance Drill Diameter O/Diameter Core Pitch Depth Radius Effective Dia T.P.I Dec / Met / Frac Dec / Met / Frac An appropriate sealing compound can be used in the thread to ensure a leak-proof joint. This thread needs a gasket or seal to be gas/liquid tight. British Pipe Thread ( Whitworth Form) -- Taper (BSPT) Thread Designation BSPT: Nominal Size BSPT: Thread Form Type: Major Diameter mm Size Description A B C Size Description A B C 1/8"BSP 90 deg Elbow 18 18 - 1/8"BSP Street Elbow 15 19 26 1/4"BSP 91 deg Elbow 21 20 - 1/4"BSP Street Elbow 18 19 28 3/8"BSP 92 deg Elbow 24 21 - 3/8"BSP Street Elbow 23 23 35 1/2"BSP 93 deg Elbow 29 27 - 1/2"BSP Street Elbow 29 29 42 3/4"BSP 94 deg Elbow 35 33 - 3/4"BSP Street Elbow 35 33 51 . NPTF, BSPT and BSPP measure 1/4" larger than their actual size. 7/16 .4375 14 . 2 Sizes Pipe thread sizes are based on an inside diameter (ID) or flow size. An appropriate sealing compound can be used in the thread to ensure a leak-proof joint. Drill Size Decimal Equiv. To determine pitch, use a thread gauge or count the number of threads that fall into a 1 . The table below lists the TPI for both NPT and BSP at sizes commonly used with domestic radiators. BSTP (British Standard Taper Pipe) Thread Data This thread is tapered, but with an 'interference' fit. Dash Size 2345678 10 12 14 16 20 24 32 40 48 . Thread Form Type. External 2779:1956 Medium Class BSP. Once you have the thread size, you then need to . Minor diameter is the measurement of the inside of a female threaded connection, from thread to thread. BSPT male and BSPP male with conical 30° seat (60° included angle) seal against matching conical 30° seat of BSPP female swivel. These products are designed for industrial applications and are not suitable for sale to the general public. WORKING PRESSURE mm mm bar psi 20 27 x 1,5-27 280 4060 22 30 x 1,5-30 215 3100 25 33 x 1,5-33 215 3100 28 36 x 1,5-36 215 3100 30 39 x 1,5-39 215 3100 35 45 x 1,5-45 180 2600 SAE SAE 45º FLARE SAE INVERTED FLARE TUBE SIZE THREAD SIZE DASH SIZE MAX. The thread angle is 60°, the profile was originated by William Sellers. Thread Height H1. *Class 2A or 2B Table G1 — Thread Conformance Standards Table G2 — Standard Material Specifications for Industrial Pipe Fittings and Adapters Introduction This Section contains adapters with thread types including: NPT, NPTF, BSPT, BSPP, SAE UN/UNF, and Metric. NPT has a thread angle of 60º where BSP is 55º. Also Known As. Drill Size Decimal Equiv. Dimensions and pressures for reference only, subject to change. British Pipe Thread ( Whitworth Form) -- Parallel (BSPP/BSPF) Thread Designation Nominal Size Thread Form Type Major Diameter mm d=D Pitch mm p Threads per inch Pitch Diameter mm d2=D2 Minor Diameter Male Thd. For example, "1/2-14 NPT" identifies a pipe thread with a nominal inside diameter of 1/2 inch and 14 threads to the inch, made according to the. Taper is 3/4" taper per foot ( 1 in 16 on the diameter) Various Symbols: BSPT, BSPTr, PT, KR, Rc. BSP threads are not compatible with NPT threads . 2) Take the O.D measurement (in inches) and subtract 1/4 inch (.25"). BSP pipe, Like American National pipe (NPT, NPSM), is designated by trade size, rather than actual diameter, which is approximately equal to the thread's Major Diameter in the table below. Akron identifies all unique threads with a 3-letter Thread Code. APFH-4.12 ANSI B 1.20.3. In the . All the Thread Pitch in mm mm Coarse Fine Dia. Pitch For the purposes of this guide, pitch refers to threads per inch, instead of the distance between the threads, for fractional screw threads and pipe threads. 2) 90 durometer nitrile is standard for hydraulic applications. If this is not possible, either indicate the city and state of use or supply a copy of thread specifications. This refers to a British Standard Pipe thread tapered (EN 10226) with an internal parallel form (Rp) and a nominal size of 2 ½. 0.35 inch. Taper threads, British Standard Pipe Taper thread (BSPT). (Threads per Inch) ISO 228, DIN 259, BS2779, JIS B0202 In Japan this thread is known as (PF) Use prefix G for parallel thread. This is the actual length of each thread, peak to peak. THREAD CHARTS • JIC - SAE • Metric/International Where: D = Major Dia.internal thread D 1 = Minor Dia.internal thread D 2 = Pitch diameter internal thread d = Major Dia.external thread d 1 = Minor Dia.external thread d3=D3. N ational P ipe T aper F uel. Typical sizes and uses are : 1/4 Inch BSP - Compressed air connectors. These pipe threads are also known as Whitworth pipe threads. National Standard Taper Pipe (NPT) Threads Size Chart 1/16 0.3125 27 0.16 0.2611 1/8 0.405 27 0.18 4½ 2½ 0.26 1/4 0.54 18 0.2 4 3 0.401 3/8 0.675 18 0.24 4½ 3 0.408 Inch mm Thread Size Comparison Chart continued from facing page. An appropriate sealing compound can be used in the thread to ensure a leakproof joint. TABLE OF CONTENTS The company reserves the right to vary models and dimensions without notice. Size Gauge Dia. BSPP (G) Thread size (inch) Major Diameter (mm) Minor Diameter (mm) TPI Thread Identification Tools.. ISO 7/1 and NPT threads can be difficult to identify because they are very close in design. The actual sizes of the most commonly used BSP threads are listed in Table 1 and Table 2 for BSPP and BSPT threads respectively. 3/8 Inch BSP - Central heating oil line connectors, some European toilet cistern fill valves (not common in UK). SIZE THREAD SIZE DASH SIZE MAX. 4) See page N7 for details. . JIS K6741 (mm) DIN 8062 (mm) ASTM D1785 (in.) Dimensions and pressures for reference only, subject to change. No. BSPT thread is used where pressure-tightness is made through the mating of two threads together. WORKING PRESSURE inch inch bar psi bar psi . .com Inch and Metric External Pipe Threads per. G-Series pipe thread chart (British standard pipe parallel was BSPP & BSPF) and PF-Series pipe thread chart (Japanese pipe parallel). Minor diameter is the measurement of the inside of a female threaded connection, from thread to thread. External thread th. Speedy (Mechanical) (OP) 1 Nov 06 11:04. International standards require all Female thread is parallel and male thread is tapered. Figure 5 shows a male NPT tightened into a BSPP. The thread flank angle for both tapered and parallel British threads is 55°. Tap Drill Charts | British Standard Pipe Threads BSW BSPP BSPT Pipe Tap Size Pitch (TPI) Drill Size (inch) Pitch (TPI) Drill Size (inch) Pitch (TPI) Drill Size* (inch) 1/16 60 0.046 (#56) 28 0.261 (G) - - 1/8 40 0.098 (#40) 28 11/32 28 21/64 1/4 20 0.196 (#9) 19 29/64 19 7/16 5/16 18 1/4 - - - - 55 Degree Threads. Pipe Size 2000 3000 6000 2000 3000 6000 2000 3000 6000 2000 3000 6000 B L2 Size Gauge BRITISH No. BSPT & BSPP THREADS BSP is BRITISH STANDARD PIPE Also known as Whitworth 55° Thread Form BSPT is BRITISH STANDARD PIPE TAPER Thread form per AS 1722.1, BS 21, ISO 7, DIN 3852-2 Form C BSPP is BRITISH STANDARD PIPE PARALLEL Thread form per AS 1722.2, ISO 228 (Thread Type), ISO 1179 BSPT male threads seal against threads of fixed BSPT female. Title: British Standard Pipe Taper (BSPT) Threads Size Chart Author: Pyromation Inc. Subject: BSPT Thread Created Date: 5/7/2009 8:36:01 AM Subtract approx. ISO 1179-11) — Flat Face Port with British Standard Pipe, Parallel (BSPP) Threads (DIN 3852, Part 2) ISO 228-1 "G" Threads Table U20 — Port Detail — ISO 1179-1 1) Conforms to proposed revision. well as the thread to thread spacing in metric applications. 9mm. Thread Form Type. NPT Threads Dimensions NPT THREAD SIZE & PITCH DASH SIZE inch - TPI MALE THREAD MINOR OD FEMALE THREAD ID mm inch mm inch 1/8 - 27-02 9,9 0.39 8,4 0.33 1/4 - 18-04 13,2 . WORKING PRESSURE MAX. ASTM Iron Pipe Size (IPS) threads use NPT (National Pipe Thread) threads which are also designated as inch size, conforming to ASTM F 1498. Order on line BSPT Taps, Rc Series "Rc: Series British Standard Pipe - Taper- BSPT. Major Diameter mm d=D. d3: Thread Height H1: Tap Drill Diameter mm: G1/8 : 1/8" BSPP: 9.728: 0.907: 28: . Pitch Diameter mm d2=D2. Table 1 — Basic profile dimensions 2 Table 2 — Maximum diameters 3 Table 3 — Diameter/pitch combinations 4 Table 4 — Basic dimensions 7 Table 5 — Fundamental deviations for nut threads and bolt threads 19 Table 6 — Lengths of thread engagement 20 Table 7 — Minor diameter tolerances of nut thread 21 Table 8 — Major diameter . NOTE: It is a common mistake to identify a BSPT (tapered) as an NPT. male thread form into a BSP female straight thread form. thread size chart new line hose and fittings, sae oring port dimensions hyvair corp, threading tables whitworth bsf etc gerard s garage, bolt depot threads per inch table for us bolts, hydraulic fitting thread identification manual u s a 2014, thread reference charts malone speciality inc, sae straight thread orb discounthydraulichose com, sae . Std. Some important notes from the ISO 228 - 1 standard: - Both internal and external threads are parallel threads. Drill Size Decimal Equiv. for high pressure Copper Tube s) Taper and Straight (Parallel) (For threads for High Pressure Copper Tubes see BSP Taper) DIN 40430 For Taper Threads the size given under "Major dia. PIPE THREAD -- BRITISH STANDARD PIPE TAPER -- BSPT PIPE THREAD -- JAPANESE PIPE TAPER -- PT . British Standard Whitworth thread chart, BSW thread chart showing TPI and drill sizes. The size number was originally based on the inner diameter measured in inches (25.4 mm) of a steel tube for which the thread was intended, but is in the modern metric version of the standard simply a size number. Thread Fittings 40 ASME B16.11-2009 (Revision of ASME B16.11-2005) Center to End Elbow, Tee, Cross A Center to End 45° Elbow C Outside Diameter Of Band H Minimum Wall Thickness G Length of Thread Min. of Threads/Inch BA BSW BSF BSP Major Dia. Pitch mm p. Threads per inch tpi. Pitch P. Height of thread h. major d = D. pitch d2 = D2. The most common types of whitworth thread are: • BSPP (G) - British Standard Pipe Parallel • BSPT (R/Rp) - British Standard Tapered Pipe, for pipes and tapered thread. These are sometimes denoted by the letter G, for example G1/2" means a parallel 1/2 inch BSP thread. * Thread size refers to the nominal bore of the pipe. S Turn to the Straight Thread Identification Threads according BSi - British Standard Institute - BS 21 "Specification for pipe threads for tubes and fittings where pressure-tight joints are made on the threads" can be made as. For example, a 1/4" NPTF, BSPT or BSPP will actually measure 1/2" on the O. D. of the threads. In addition, Measure the BSPT male thread OD and female thread ID at the first full thread near the end of the fitting. 9mm. for each size according to the designated standard. The chart below compares nominal and actual* pipe O.D. Where can I get the 'British Standard Pipe Threads' for both parrallel and tapered. BSPT (British Standard Tapered Pipe) Whitworth Pipe Thread for pipes and fittings. Drill Size Decimal Equiv. NOTE: Sizes 16" and larger are * Refer to page 26 with bolt torque table.

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