{"id":3890,"date":"2026-03-06T10:00:00","date_gmt":"2026-03-06T10:00:00","guid":{"rendered":"https:\/\/microductconnector.com\/blog\/choosing-right-steel-pipe-coupling-for-project\/"},"modified":"2026-10-23T09:42:56","modified_gmt":"2026-10-23T09:42:56","slug":"choosing-right-steel-pipe-coupling-for-project","status":"publish","type":"post","link":"https:\/\/microductconnector.com\/ko\/blog\/choosing-right-steel-pipe-coupling-for-project\/","title":{"rendered":"\uac15\ucca0 \ud30c\uc774\ud504 \ucee4\ud50c\ub9c1: \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\ud569\ud55c \uc720\ud615\uc744 \uc120\ud0dd\ud558\ub294 \ubc29\ubc95"},"content":{"rendered":"<article>\n<p>A <strong class=\"blog-core-keyword\">steel pipe coupling<\/strong> must match both the pipe interface and the job the joint performs. A connection can look correctly sized yet fail because its sealing range, pipe preparation, gasket or movement allowance is wrong. The selection process should therefore start with measured pipe data and the piping design, followed by a documented installation and acceptance method.<\/p>\n<p> Choose a steel pipe coupling by the actual pipe <strong class=\"blog-core-keyword\">\uc678\ubd80 \uc9c1\uacbd<\/strong>, wall condition, medium, pressure-and-temperature duty, movement allowance, and corrosion environment\u2014not by nominal size alone. A rigid coupling is normally used where alignment and restraint are intended, while a flexible design may accommodate limited movement only when the manufacturer and piping design allow it. Lock the complete data set before purchase, then inspect and pressure-test the installed line to the applicable project procedure.<\/p>\n<p>\uac15\uad00 \ucee4\ud50c\ub9c1\uc740 \ub098\uc0ac\uc0b0, \uc555\ucc29 \ud558\ub4dc\uc6e8\uc5b4, \uc2ac\ub9ac\ube0c \ubc0f \ud328\uc2a4\ub108, \ub610\ub294 \uac1c\uc2a4\ud0b7\uc774 \uc788\ub294 \ud558\uc6b0\uc9d5\uc744 \ud1b5\ud574 \ud638\ud658\ub418\ub294 \ud30c\uc774\ud504 \ub05d\ub2e8\uc744 \uc5f0\uacb0\ud569\ub2c8\ub2e4. \uc774\ub294 \ubc30\uad00 \uc5b4\uc148\ube14\ub9ac\uc758 \ud55c \uc694\uc18c\uc77c \ubfd0\uc774\uba70, \ud30c\uc774\ud504 \uc7ac\uc9c8, \uc811\ud569 \ubc29\uc2dd, \uc9c0\uc9c0\ub300 \ubc0f \uc2dc\uc6b4\uc804 \uacc4\ud68d\uc774 \uc77c\uce58\ud574\uc57c \ud569\ub2c8\ub2e4. ASME B31.3\uc740 \uacf5\uc815 \ubc30\uad00\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub418\uc9c0\ub9cc, \uc801\uc6a9 \uac00\ub2a5\uc131\uc740 \uc2dc\uc2a4\ud15c\uacfc \uad00\ud560\uad8c\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4.<\/p>\n<h2>Decide what the pipe joint must do<\/h2>\n<p>\uba3c\uc800 \uc774\uc74c\ub9e4\uac00 \uc218\ud589\ud574\uc57c \ud560 \uc5ed\ud560\uc744 \uc815\uc758\ud558\uc2ed\uc2dc\uc624. \uc9c1\uc120 \ubcf4\uc218, \uc5f0\uc7a5, \uc804\ud658, \uadf8\ub9ac\uace0 \uc9c4\ub3d9\uc5d0 \ub178\ucd9c\ub41c \uc5f0\uacb0\ubd80\ub294 \ub3d9\uc77c\ud55c \uc694\uad6c \uc870\uac74\uc744 \uc0dd\uc131\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud574\ub2f9 \ubc30\uad00 \ub77c\uc778\uc5d0 \uad6c\uc18d, \uc81c\ud55c\ub41c \ud3b8\uc704, \ubd84\ud574 \uc811\uadfc\uc131 \ub610\ub294 \uc601\uad6c\uc801\uc778 \uc774\uc74c\ub9e4\uac00 \ud544\uc694\ud55c\uc9c0 \uae30\ub85d\ud558\uc2ed\uc2dc\uc624. \uac15\uc131 \ucee4\ud50c\ub9c1\uc740 \uc815\ub82c\uc744 \ucd5c\uc6b0\uc120\uc73c\ub85c \ud558\uba70, \uc720\uc5f0\uc131 \uc81c\ud488\uc740 \ud574\ub2f9 \uc81c\ud488 \ubc0f \uc2dc\uc2a4\ud15c\uc5d0 \uba85\uc2dc\ub41c \uc6c0\uc9c1\uc784\ub9cc \uc218\uc6a9\ud569\ub2c8\ub2e4. \ub450 \uac00\uc9c0 \ubaa8\ub450 \uc9c0\uc9c0\ub418\uc9c0 \uc54a\uc740 \ud30c\uc774\ud504\ub098 \uacfc\ub3c4\ud55c \uc5f4 \uc218\ucd95\u00b7\ud33d\ucc3d\uc744 \ubc14\ub85c\uc7a1\uc9c0\ub294 \ubabb\ud569\ub2c8\ub2e4.<\/p>\n<figure class=\"wp-block-image size-full\" style=\"width:50%;max-width:600px;margin:1.5rem auto\"><img alt=\"Inspection of the visible interfaces on Double Internal Thread  Hexagon Connector\" class=\"wp-image-4997\" decoding=\"async\" height=\"800\" loading=\"lazy\" src=\"https:\/\/microductconnector.com\/wp-content\/uploads\/2026\/10\/repair59-3890-inline1.webp\" style=\"width:100%;height:auto;display:block\" width=\"600\" srcset=\"https:\/\/microductconnector.com\/wp-content\/uploads\/2026\/10\/repair59-3890-inline1.webp 600w, https:\/\/microductconnector.com\/wp-content\/uploads\/2026\/10\/repair59-3890-inline1-225x300.webp 225w, https:\/\/microductconnector.com\/wp-content\/uploads\/2026\/10\/repair59-3890-inline1-9x12.webp 9w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<table>\n<caption>\uc870\ub2ec \uac80\ud1a0\ub97c \uc704\ud55c \uacb0\ud569 \ud568\uc218 \ube44\uad50<\/caption>\n<thead>\n<tr>\n<th>\uacb0\ud569 \uc811\uadfc\ubc95<\/th>\n<th>\uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4<\/th>\n<th>\uc8fc\uc694 \uc774\uc810<\/th>\n<th>\ud575\uc2ec \uac80\ud1a0 \ud3ec\uc778\ud2b8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\uac15\uc131 \uae30\uacc4\uc801 \ucee4\ud50c\ub9c1<\/td>\n<td>\uc81c\uc7ac\uac00 \ud544\uc694\ud55c \uc815\ub82c\ub41c \uc2e4\ud589<\/td>\n<td>\uc81c\uc5b4\ub41c \uad00\uc808 \uc704\uce58<\/td>\n<td>\uc815\ub82c, \ud30c\uc774\ud504 \ub2e8\ubd80 \uc900\ube44 \ubc0f \uc9c0\uc9c0\ub300 \uc138\ubd80\uc0ac\ud56d\uc744 \ud655\uc778\ud558\uc138\uc694.<\/td>\n<\/tr>\n<tr>\n<td>\uc720\uc5f0 \uae30\uacc4\uc2dd \ucee4\ud50c\ub9c1<\/td>\n<td>\uc81c\ud55c\ub41c \uc6c0\uc9c1\uc784\uc774\ub098 \ubcc0\uc704\ub97c \uc704\ud574 \uc124\uacc4\ub41c \uc2dc\uc2a4\ud15c<\/td>\n<td>\uc774\ub3d9\uc758 \uc9c0\uc815\ub41c \uc218\uc6a9<\/td>\n<td>\uae30\uc7ac\ub41c \uc774\ub3d9 \ubc0f \uc11c\ube44\uc2a4 \ud55c\ub3c4 \ub0b4\uc5d0\uc11c\ub9cc \uc0ac\uc6a9\ud558\uc138\uc694<\/td>\n<\/tr>\n<tr>\n<td>threaded steel coupling<\/td>\n<td>\uc2a4\ub808\ub4dc \ud638\ud658 \uc18c\uad6c\uacbd \uc11c\ube44\uc2a4 \ub77c\uc778<\/td>\n<td>\uc775\uc219\ud55c \ud604\uc7a5 \uc870\ub9bd<\/td>\n<td>\ub098\uc0ac\uc0b0 \ud615\ud0dc, \uc2e4\ub7f0\ud2b8 \uc2dc\uacf5 \ubc29\ubc95, \ubcbd\uccb4 \uc801\ud569\uc131\uc744 \ud655\uc778\ud558\uc138\uc694.<\/td>\n<\/tr>\n<tr>\n<td>\uc218\ub9ac \uc2ac\ub9ac\ube0c \ub610\ub294 \uc555\ucc29\uc2dd \ucee4\ud50c\ub9c1<\/td>\n<td>\uc2b9\uc778\ub41c \uc218\ub9ac \ub610\ub294 \ud3c9\ub05d \uc5f0\uacb0\ubd80<\/td>\n<td>\uace0\uc628 \uc791\uc5c5 \uc694\uad6c \uc0ac\ud56d\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/td>\n<td>\uc678\uacbd, \ud45c\uba74 \uc0c1\ud0dc \ubc0f \ubcf4\uc218 \uc808\ucc28\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Check how joint movement changes the support design<\/h2>\n<p>For grooved piping, the difference between rigid and <strong class=\"blog-core-keyword\">flexible coupling<\/strong>s affects the whole pipe run. <a href=\"https:\/\/www.victaulic.com\/blog\/rigid-and-flexible-pipe-couplings-difference-history\/\" rel=\"nofollow noopener\" target=\"_blank\">Victaulic&#8217;s explanation of rigid and flexible couplings<\/a> describes flexible designs that permit controlled linear and angular movement, while rigid designs restrain movement at the joint. This distinction applies to the documented grooved system; it should not be transferred to an unrelated pneumatic quick coupling merely because both products are called couplings.<\/p>\n<p>Ask the designer where movement is supposed to occur. A flexible joint may allow a calculated change in pipe position, but its available movement depends on the exact product, size, assembly condition and operating limits. Supports, anchors and guides must account for that behavior. A coupling is not permission to leave pipe unsupported, correct excessive misalignment by force or assume that all vibration will disappear.<\/p>\n<p>Record the required axial movement, angular deflection and installation gap in the design package where relevant. Then compare them with the current manufacturer&#8217;s limits and instructions. For an adjacent component category, the <a href=\"https:\/\/microductconnector.com\/blog\/what-is-stainless-steel-joint-and-related-introduction\/\">stainless-steel joint guide<\/a> helps separate tube fittings and quick couplers from pressure-pipe joining systems. Keep the required function explicit when requesting alternatives.<\/p>\n<h2>Measure the pipe before choosing the coupling size<\/h2>\n<p>\uba85\ubaa9 \ubc30\uad00 \ud06c\uae30(NPS) \ub610\ub294 \ud638\uce6d\uacbd(DN)\uc740 \ubc30\uad00 \uacc4\uc5f4\uc744 \uc2dd\ubcc4\ud558\uc9c0\ub9cc \ucee4\ud50c\ub9c1\uc774 \ub9de\uc744 \uac83\uc784\uc744 \uc99d\uba85\ud558\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. \u201cDN 50\u201d\uc774\ub77c\uace0 \uc801\ud78c \uc8fc\ubb38\uc11c\uc5d0\ub3c4 \uc5ec\uc804\ud788 \uc678\uacbd, \ubc30\uad00 \uc7ac\uc9c8, \ub450\uaed8 \ubc94\uc704, \ub2e8\ubd80 \uc870\uac74, \uadf8\ub9ac\uace0 \uc81c\uc870\uc0ac\uc758 \uc2b9\uc778\ub41c \ubc94\uc704\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ud2b9\ud788 \uc624\ub798\ub418\uac70\ub098, \ucf54\ud305\ub418\uc5c8\uac70\ub098, \ud0c0\uc6d0\ud615\uc774\uac70\ub098, \ubcf4\uc218\ub41c \uad6c\uc5ed\uc758 \uacbd\uc6b0 \uc811\ud569\ubd80\uc5d0\uc11c \ubc30\uad00\uc744 \uce21\uc815\ud558\uc2ed\uc2dc\uc624.<\/p>\n<figure class=\"wp-block-image size-full\" style=\"width:50%;max-width:600px;margin:1.5rem auto\"><img alt=\"Visible surface and connection-end preparation detail for Threaded Hexagon Connector\" class=\"wp-image-4998\" decoding=\"async\" height=\"800\" loading=\"lazy\" src=\"https:\/\/microductconnector.com\/wp-content\/uploads\/2026\/10\/repair59-3890-inline2.webp\" style=\"width:100%;height:auto;display:block\" width=\"600\" srcset=\"https:\/\/microductconnector.com\/wp-content\/uploads\/2026\/10\/repair59-3890-inline2.webp 600w, https:\/\/microductconnector.com\/wp-content\/uploads\/2026\/10\/repair59-3890-inline2-225x300.webp 225w, https:\/\/microductconnector.com\/wp-content\/uploads\/2026\/10\/repair59-3890-inline2-9x12.webp 9w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure>\n<p>\uc81c\uc870\uc0ac\uc758 \uc124\uce58 \uc9c0\uce68\uacfc \uce58\uc218 \ud55c\uacc4\uce58\ub97c \uc900\uc218\ud558\uc2ed\uc2dc\uc624. \uc801\uc808\ud55c \uc6d0\uc8fc \ud14c\uc774\ud504\ub098 \uce98\ub9ac\ud37c\ub85c \uc678\uacbd\uc744 \uce21\uc815\ud558\uace0, \ud544\uc694\ud55c \uacbd\uc6b0 \uc9c4\uc6d0\ub3c4\ub97c \uac80\uc0ac\ud55c \ud6c4 \uadf8 \uacb0\uacfc\ub97c \uc81c\uacf5\ub41c \ubc94\uc704\uc640 \ube44\uad50\ud558\uc2ed\uc2dc\uc624. \ud30c\uc190\ub418\uac70\ub098 \ubd80\uc2dd\ub418\uc5c8\uac70\ub098 \uc721\uc548\uc73c\ub85c \ubcf4\uae30\uc5d0 \uc9c4\uc6d0\ub3c4\uac00 \uc544\ub2cc \ub05d\ub2e8\uc740 \ubcf4\uc218\uc6a9 \ucee4\ud50c\ub9c1\uc744 \uc8fc\ubb38\ud558\uae30 \uc804\uc5d0 \uc0c1\uae09\uc790\uc5d0 \ubcf4\uace0\ud558\uc2ed\uc2dc\uc624.<\/p>\n<table>\n<caption>\uac15\uad00 \ucee4\ud50c\ub9c1 \ubb38\uc758\uc5d0 \uad00\ud55c \uc815\ubcf4 \ud544\uc694<\/caption>\n<thead>\n<tr>\n<th>\ud544\ub4dc<\/th>\n<th>\uad6c\ub9e4\uac00 \ud544\uc694\ud55c \uc774\uc720<\/th>\n<th>\uc720\uc6a9\ud55c \ud56d\ubaa9\uc758 \uc608<\/th>\n<th>\uc0dd\ub7b5 \uc2dc \uc704\ud5d8\uc131<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\ud30c\uc774\ud504 \uce58\uc218<\/td>\n<td>\ud638\ud658\ub418\ub294 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uc815\ud569\ub2c8\ub2e4.<\/td>\n<td>\uce21\uc815 \uc678\uacbd, \uacf5\uce6d \uce58\uc218, \ub450\uaed8 \ubc94\uc704<\/td>\n<td>\uc798 \ub9de\uc9c0 \uc54a\uac70\ub098 \uc530\ub9c1 \ubc94\uc704\uac00 \uc798\ubabb\ub428<\/td>\n<\/tr>\n<tr>\n<td>\ub9e4\uccb4 \ubc0f \uc791\ub3d9 \ubc94\uc704<\/td>\n<td>\uac00\uc774\ub4dc \uc7ac\uc9c8 \ubc0f \uac1c\uc2a4\ud0b7 \uac80\ud1a0<\/td>\n<td>\uc555\ucd95 \uacf5\uae30, \ubb3c \ub610\ub294 \uacf5\uc815 \uc720\uccb4; \uc124\uacc4 \uc555\ub825 \ubc0f \uc628\ub3c4<\/td>\n<td>\ubd80\uc801\uc808\ud55c \uc2e4\ub9c1\uc7ac<\/td>\n<\/tr>\n<tr>\n<td>\uacf5\ub3d9 \uc758\ubb34<\/td>\n<td>\uacbd\uc9c1\ub41c \uc694\uad6c\uc0ac\ud56d\uacfc \uc720\uc5f0\ud55c \uc694\uad6c\uc0ac\ud56d\uc744 \uad6c\ubd84\ud569\ub2c8\ub2e4<\/td>\n<td>\uc815\ub82c\ub41c \uc5f0\uc7a5, \ubcf4\uc218 \ub610\ub294 \uaddc\uc815\ub41c \uc774\ub3d9 \ud5c8\uc6a9\ucc28<\/td>\n<td>\uc608\uae30\uce58 \uc54a\uc740 \uc6c0\uc9c1\uc784 \ub610\ub294 \uc751\ub825<\/td>\n<\/tr>\n<tr>\n<td>\ud658\uacbd<\/td>\n<td>\ubc29\uc2dd(\u9632\u8755) \ubcf4\ud638 \uc9c8\ubb38 \uc124\uc815<\/td>\n<td>\uc2e4\ub0b4 \uac74\uc870 \uad6c\uc5ed, \ubb3c\uccad\uc18c \uad6c\uc5ed \ub610\ub294 \uc625\uc678 \ub178\ucd9c \uad6c\uc5ed<\/td>\n<td>\uc870\uae30 \uc5f4\ud654<\/td>\n<\/tr>\n<tr>\n<td>\uc778\uc218 \uc99d\ube59<\/td>\n<td>\uc778\uc218\u00b7\uc778\uacc4 \ubc94\uc704 \uc124\uc815<\/td>\n<td>Installation instructions, marking, inspection records<\/td>\n<td>\ub2a6\uc740 \uc2b9\uc778 \ubd84\uc7c1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Resolve a thread mismatch before applying sealant<\/h2>\n<p>Threaded connections require more than a nominal diameter. BSP and NPT use different thread geometries; a fitting that turns into a port for a few revolutions is not proof of a compatible joint. The <a href=\"https:\/\/www.thehosemaster.co.uk\/blogs\/news\/bsp-vs-npt-whats-the-difference-and-are-they-compatible\" rel=\"nofollow noopener\" target=\"_blank\">Hosemaster&#8217;s BSP and NPT comparison<\/a> identifies the 55-degree BSP and 60-degree NPT flank angles. Pitch, diameter, taper and the intended sealing interface must also match the specified mating parts.<\/p>\n<p>BSPP connections commonly use a defined face, washer or O-ring sealing arrangement rather than relying on parallel threads to seal. Tapered-thread connections use their specified mating geometry and sealing practice. Do not generalize one rule to every parallel or tapered combination: the precise <strong class=\"blog-core-keyword\">thread designation<\/strong> and manufacturer&#8217;s approved pairing control the decision. An adapter, where needed, must have the correct designation at each end and a rating suitable for the assembly.<\/p>\n<p>\uadf8 <a href=\"https:\/\/microductconnector.com\/blog\/bsp-or-npt-push-in-fittings-thread-matching-guide\/\">BSP versus NPT thread-matching guide<\/a> provides a useful checklist for pneumatic interfaces. For pipe procurement, put the full designation, mating component and sealing method on the enquiry. If the existing port cannot be identified, isolate the system and obtain dimensional or gauge-based identification before ordering. Extra torque or additional tape cannot convert an unidentified interface into an approved connection.<\/p>\n<h2>Check pressure, temperature, movement, and corrosion<\/h2>\n<p>\ub9e4\uccb4 \ud658\uacbd, \uc678\ubd80 \ubd84\uc704\uae30, \uc138\ucc99\uc81c, \uc628\ub3c4, \uc778\uc811 \uc7ac\uc9c8\uc744 \uace0\ub824\ud558\uc2ed\uc2dc\uc624. \u201c\uac15\ucca0\u201d\uc740 \uc644\uc804\ud55c \ubd80\uc2dd \uc694\uad6c\uc0ac\ud56d\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc625\uc678\uc5d0\uc11c\ub294 \uc218\ubd84 \uc815\uccb4, \ucf54\ud305 \uc190\uc0c1, \ud2c8\uc0c8, \ud1a0\uc591 \uc811\ucd09 \ubc0f \uc811\uadfc\uc131\uc774 \ubaa8\uc7ac \ud569\uae08\ub9cc\ud07c \uc911\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. ISO 12944\ub294 \ubc29\uccad \ub3c4\uc7a5 \uc2dc\uc2a4\ud15c\uc744 \uc704\ud55c \ud504\ub808\uc784\uc6cc\ud06c\ub97c \uc81c\uacf5\ud560 \ubfd0, \ud2b9\uc815 \uccb4\uacb0\uc744 \uc2b9\uc778\ud558\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub2e8\uac00\ubfd0\ub9cc \uc544\ub2c8\ub77c \ucd1d \uc124\uce58 \ube44\uc6a9\uc744 \ube44\uad50\ud558\uc2ed\uc2dc\uc624. \uc800\ub834\ud55c \ucee4\ud50c\ub9c1\uc740 \ud45c\uba74 \ucc98\ub9ac, \ud2b9\uc218 \uacf5\uad6c, \ud14c\uc2a4\ud2b8 \uc2e4\ud328 \ub610\ub294 \uae30\ud0c0 \ub3d9\uc6d0 \ube44\uc6a9\uc744 \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \uc124\uce58 \uc21c\uc11c\uc640 \uac80\uc218 \uacc4\ud68d\uc5d0 \ub530\ub77c \uc635\uc158\uc744 \ube44\uad50\ud558\uc2ed\uc2dc\uc624.<\/p>\n<p>For pneumatic lines, <a href=\"https:\/\/microductconnector.com\/blog\/common-issues-with-pneumatic-straight-fittings\/\">one-touch fittings<\/a> help distinguish tube-fitting assemblies from steel pipe couplings; stainless-steel joints clarify common connection terminology.<\/p>\n<h2>Put the coupling requirements in one specification<\/h2>\n<p>\ud45c\uc900\uc740 \ud30c\uc774\ud504, \ucf54\ud305, \ub098\uc0ac\uc0b0 \ub610\ub294 \ud14c\uc2a4\ud2b8 \uc694\uad6c\uc0ac\ud56d\uc744 \uc815\uc758\ud560 \uc218 \uc788\uc9c0\ub9cc, \uadf8 \uc801\uc6a9 \ubc94\uc704\uac00 \uc911\uc694\ud558\ub2e4. ASTM A53\/A53M\uc740 \ud2b9\uc815 \ud751\uc0c9 \ubc0f \uc544\uc5f0 \ub3c4\uae08 \uc6a9\uc811 \ubc0f \uc774\uc74c\ub9e4 \uc5c6\ub294 \uac15\uad00\uc744 \ub2e4\ub8e8\uba70, \ubd80\ucc29\ub41c \ubaa8\ub4e0 \ucee4\ud50c\ub9c1\uc744 \uc778\uc99d\ud558\uc9c0\ub294 \uc54a\ub294\ub2e4. ASTM A123\/A123M\uc740 \uc6a9\uc735 \uc544\uc5f0 \ub3c4\uae08 \uac00\uacf5 \ucca0 \ubc0f \uac15\ucca0\uc744 \ub2e4\ub8e8\ub294 \ubc18\uba74, ASTM A153\/A153M\uc740 \uc544\uc5f0 \ub3c4\uae08 \ucca0\ubb3c\uc744 \ub2e4\ub8ec\ub2e4. \ud3ec\uad04\uc801\uc778 \u201c\uc801\ud569\u201d \uc8fc\uc7a5(compliant)\uc5d0 \uc758\uc874\ud558\ub294 \ub300\uc2e0 \uc801\uc6a9 \uac00\ub2a5\ud55c \ubb38\uc11c, \ud310\ubcf8 \ubc0f \uc778\uc218 \uc694\uad6c\uc0ac\ud56d\uc744 \uba85\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/p>\n<p>ASME B31.3\uc740 \uadf8 \uc801\uc6a9 \ubc94\uc704 \ubc0f \ud504\ub85c\uc81d\ud2b8 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ub530\ub77c \uacf5\uc815 \ubc30\uad00\uc5d0 \ub300\ud55c \uac80\uc0ac \ubc0f \uc555\ub825\uc2dc\ud5d8 \uaddc\uc815\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4. \uc555\ub825\uc2dc\ud5d8\uc744 \uc2dc\uc2a4\ud15c \ub808\ubca8\uc758 \ud65c\ub3d9\uc73c\ub85c \ucde8\uae09\ud558\uc2ed\uc2dc\uc624. \ucc45\uc784 \uc788\ub294 \uc808\ucc28\uc11c\ub294 \uc2dc\ud5d8 \ubc29\ubc95, \uc2dc\ud5d8 \ub9e4\uccb4, \uc555\ub825, \uc548\uc804 \ud1b5\uc81c, \uc720\uc9c0 \uae30\uac04 \ubc0f \uae30\ub85d\uc744 \uc124\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p>\ucd9c\uc2dc \uc804, \ub2e4\uc74c \ub2e4\uc12f \uac00\uc9c0 \ud544\uc218 \uc0ac\ud56d\uc744 \ubc1c\ud589\ud574\uc57c \ud569\ub2c8\ub2e4: \uac80\uc99d\ub41c \uce58\uc218; \ucee4\ud50c\ub9c1 \uc720\ud615; \uc7ac\uc9c8 \ubc0f \uc530\ub9c1 \uc694\uc18c; \uc0ac\uc6a9 \ubc0f \ud658\uacbd \ud55c\uacc4; \uadf8\ub9ac\uace0 \uc124\uce58, \uac80\uc0ac, \ubb38\uc11c\ud654 \uc694\uad6c\uc0ac\ud56d. \ub9c8\uc774\ud06c\ub85c\ub355\ud2b8 \ucee4\ub125\ud130\ub294 \ucee4\ub125\ud130 \ubc0f \uacf5\uc555 \ubd80\ud488 \uc635\uc158\uc5d0 \ub300\ud574 \ub17c\uc758\ud560 \uc218 \uc788\uc73c\ub098, \uc2b9\uc778\ub41c \ubc30\uad00 \uc0ac\uc591\uc774 \uc5ec\uc804\ud788 \uc6b0\uc120\ud569\ub2c8\ub2e4.<\/p>\n<h2>Inspect the joint after installation<\/h2>\n<p>\ud30c\uc774\ud504 \ub05d\ub2e8 \uc870\uac74, \uc9c0\uc815\ub41c \uc2e4\ub7ec\ub098 \uc724\ud65c\uc81c, \uc870\uc784 \ubc29\uc2dd, \uadf8\ub9ac\uace0 \ud544\uc694\ud55c \uac04\uaca9\uc774\ub098 \uc0bd\uc785 \ud45c\uc2dc\uc5d0 \ub300\ud574 \uc81c\ud488\ubcc4 \uc9c0\uce68\uc744 \ub530\ub974\uc2ed\uc2dc\uc624. \ud504\ub85c\uc81d\ud2b8 \uc2b9\uc778 \uc5c6\ub294 \ud604\uc7a5 \uac1c\uc870\ub294 \ud53c\ud558\uc2ed\uc2dc\uc624. \ub098\uc0ac\uc0b0 \ubc29\uc2dd \uc2dc\uc2a4\ud15c\uc758 \uacbd\uc6b0 \uc62c\ubc14\ub978 \ub098\uc0ac\uc0b0 \ud615\ud0dc\uac00 \uc911\uc694\ud558\uba70, \uac1c\uc2a4\ud0b7\uc774 \uc0ac\uc6a9\ub418\ub294 \uc81c\ud488\uc758 \uacbd\uc6b0 \uccad\uacb0\ub3c4\uc640 \uac1c\uc2a4\ud0b7 \uc548\ucc29 \uc0c1\ud0dc\ub3c4 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n<p>3\ub2e8\uacc4 \uac80\uc0ac\ub97c \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624. \uc785\uace0 \uc2dc \uc2e0\uc6d0, \uaddc\uaca9 \ubc94\uc704, \uc721\uc548 \uc190\uc0c1 \ubc0f \ubb38\uc11c\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \uc870\ub9bd \uc804 \ud30c\uc774\ud504 \uce58\uc218, \ubd80\ud488 \ud45c\uc2dc \ubc0f \uc9c0\uce68\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \uc870\ub9bd \ud6c4 \uc815\ub82c, \ub9de\ubb3c\ub9bc, \uccb4\uacb0\uad6c \ubc0f \ucf54\ud305 \uc190\uc0c1\uc744 \uac80\uc0ac\ud55c \ub2e4\uc74c, \uc2b9\uc778\ub41c \ub204\ucd9c \ub610\ub294 \uc555\ub825 \ud14c\uc2a4\ud2b8\ub97c \uc644\ub8cc\ud558\uace0 \uc2dc\uc815 \uc870\uce58\ub97c \uae30\ub85d\ud558\uc2ed\uc2dc\uc624.<\/p>\n<p>\ud504\ub85c\uc81d\ud2b8\uc5d0 \ud3f4\ub9ac\uc5d0\ud2f8\ub80c \uc11c\ube44\uc2a4 \ubc30\uad00\uc774 \ud3ec\ud568\ub41c \uacbd\uc6b0, \uc774\ub7ec\ud55c \uc811\ud569\ubd80\ub97c \uac1c\ubcc4\uc801\uc73c\ub85c \ube44\uad50\ud558\uc2ed\uc2dc\uc624. HDPE \uc555\ucd95 \ud53c\ud305\uc5d0 \uad00\ud55c \uc774 \uac00\uc774\ub4dc\ub294 \uc7ac\uc9c8\ubcc4 \uc811\ud569 \ubc29\uc2dd\uc744 \uac15\uad00 \uc5f0\uacb0\ubd80\uc640 \uc0c1\ud638 \uad50\ud658 \uac00\ub2a5\ud558\ub2e4\uace0 \uac00\uc815\ud574\uc11c\ub294 \uc548 \ub418\ub294 \uc774\uc720\ub97c \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>\uac15\uad00 \uc774\uc74c\uc1e0\ub294 \ub450 \uac1c\uc758 \uac15\ucca0 \ud30c\uc774\ud504\ub97c \uc11c\ub85c \uc5f0\uacb0\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uc9e7\uc740 \uad00 \ub610\ub294 \ucee4\ub125\ud130\uc785\ub2c8\ub2e4.<\/h3>\n<p>\uac15\ucca0 \ud30c\uc774\ud504 \ucee4\ud50c\ub9c1\uc740 \ud638\ud658\ub418\ub294 \ud30c\uc774\ud504 \ub05d\ubd80\ubd84\ub4e4\uc744 \uc11c\ub85c \uc5f0\uacb0\ud569\ub2c8\ub2e4. \ub098\uc0ac\uc2dd, \uae30\uacc4\uc2dd, \uc555\ucd95\uc2dd \ub610\ub294 \ubcf4\uc218\uc6a9\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud30c\uc774\ud504 \uce58\uc218, \uc0ac\uc6a9 \uc870\uac74, \uadf8\ub9ac\uace0 \uc774 \uc5f0\uacb0 \uae30\ub2a5\uc5d0 \ub530\ub77c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<\/p>\n<h3>\uc62c\ubc14\ub978 \ud30c\uc774\ud504 \ucee4\ud50c\ub9c1 \uc0ac\uc774\uc988\ub97c \uc5b4\ub5bb\uac8c \uc120\ud0dd\ud558\ub098\uc694?<\/h3>\n<p>\uc81c\uc870\uc0ac\uac00 \uba85\uc2dc\ud55c \uce58\uc218 \ubc94\uc704\ub97c \uce21\uc815\ub41c \uc678\uacbd, \uad00\ubcbd \uc0c1\ud0dc, \uadf8\ub9ac\uace0 \ub2e8\ubd80 \uac00\uacf5 \uc0c1\ud0dc\uc640 \ube44\uad50\ud558\uc5ec \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \ud638\uce6d \uce58\uc218\ub9cc\uc73c\ub85c\ub294 \ucda9\ubd84\ud558\uc9c0 \uc54a\uc73c\uba70, \ud2b9\ud788 \uae30\uc874 \ubc30\uad00\uc774\ub098 \ucf54\ud305\ub41c \ubc30\uad00\uc758 \uacbd\uc6b0\uc5d0\ub294 \ub354\uc6b1 \uadf8\ub807\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\uac15\uc131 \ud30c\uc774\ud504 \ucee4\ud50c\ub9c1\uacfc \uac00\uc694\uc131 \ud30c\uc774\ud504 \ucee4\ud50c\ub9c1\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h3>\n<p>\ub9ac\uc9c0\ub4dc \ucee4\ud50c\ub9c1\uc740 \uc815\ub82c\ub41c \ud30c\uc774\ud504\ub97c \ud1b5\uc81c\ub41c \uc704\uce58\uc5d0 \uace0\uc815\ud558\uace0, \ud50c\ub809\uc2dc\ube14 \ucee4\ud50c\ub9c1\uc740 \uba85\uc2dc\ub41c \uc6c0\uc9c1\uc784 \ub610\ub294 \ud3b8\uc704\ub9cc \ud5c8\uc6a9\ud569\ub2c8\ub2e4. \ub458 \ub2e4 \uc801\uc808\ud55c \ubc30\uad00 \uc9c0\uc9c0\ub300\ub97c \ub300\uccb4\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud504\ub85c\uc81d\ud2b8 \ub514\uc790\uc774\ub108\uc640 \ud568\uaed8 \uc758\ub3c4\ub41c \uc774\uc74c\ub9e4 \uac70\ub3d9\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>\n<h3>\uac15\ucca0 \ucee4\ud50c\ub9c1\uc740 \uc625\uc678 \ubc30\uad00\uc5d0 \uc801\ud569\ud569\ub2c8\uae4c?<\/h3>\n<p>\uc7ac\uc9c8, \ubd80\uc2dd \ubc29\uc9c0, \uac1c\uc2a4\ud0b7 \ubc0f \uc124\uce58 \uc138\ubd80 \uc0ac\ud56d\uc774 \uc0ac\uc6a9 \ud658\uacbd\uacfc \uc77c\uce58\ud560 \ub54c \uc801\ud569\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc218\ubd84 \uccb4\ub958, \ud654\ud559 \ubb3c\uc9c8, \ud1a0\uc591 \uc811\ucd09 \ubc0f \uc720\uc9c0\ubcf4\uc218 \uc811\uadfc\uc131\uc744 \uace0\ub824\ud558\uc2ed\uc2dc\uc624. \ud504\ub85c\uc81d\ud2b8 \uc2dc\ubc29\uc11c\uac00 \uc218\ub77d \uae30\uc900\uc744 \uc124\uc815\ud569\ub2c8\ub2e4.<\/p>\n<h3>\ud30c\uc774\ud504 \ucee4\ud50c\ub9c1\uc744 \uc9c0\uc815\ud558\ub824\uba74 \uc5b4\ub5a4 \uc815\ubcf4\uac00 \ud544\uc694\ud55c\uac00\uc694?<\/h3>\n<p>\ubc30\uad00 \uc7ac\uc9c8, \uc2e4\uce21 \uce58\uc218, \ub2e8\ubd80 \uc870\uac74, \uc720\uccb4, \uc124\uacc4 \uc555\ub825 \ubc0f \uc628\ub3c4, \uc774\uc74c\uc0c8 \uae30\ub2a5, \ubcc0\uc704 \uc694\uad6c \uc0ac\ud56d, \ud658\uacbd \ubc0f \ubb38\uc11c \uc694\uad6c \uc0ac\ud56d\uc744 \uc81c\uacf5\ud558\uc2ed\uc2dc\uc624. \ucd9c\ud558 \uc804\uc5d0 \uac00\uc815\uc744 \ud574\uacb0\ud560 \uc218 \uc788\ub3c4\ub85d \uc801\uc6a9 \uac00\ub2a5\ud55c \ub3c4\uba74\uacfc \uac80\uc0ac \uacc4\ud68d\uc744 \uba85\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/p>\n<h3>\ud30c\uc774\ud504 \ucee4\ud50c\ub9c1\uc740 \uc124\uce58 \ud6c4 \uc5b4\ub5bb\uac8c \uc810\uac80\ud574\uc57c \ud569\ub2c8\uae4c?<\/h3>\n<p>\uc81c\ud488 \uc124\uba85\uc11c\uc5d0 \ub530\ub77c \uc815\ub82c, \uacb0\ud569 \uc0c1\ud0dc, \ud328\uc2a4\ub108 \ub610\ub294 \ub098\uc0ac\uc0b0 \uc0c1\ud0dc, \uc721\uc548\uc73c\ub85c \ubcf4\uc774\ub294 \uac1c\uc2a4\ud0b7 \uc548\ucc29 \uc5ec\ubd80, \ucf54\ud305 \uc190\uc0c1\uc744 \uc810\uac80\ud558\uc2ed\uc2dc\uc624. \uadf8\ub7f0 \ub2e4\uc74c \ud504\ub85c\uc81d\ud2b8 \uc2b9\uc778 \ub204\ucd9c \ub610\ub294 \uc555\ub825 \ud14c\uc2a4\ud2b8\ub97c \uc644\ub8cc\ud558\uace0 \ud544\uc218 \uae30\ub85d\uc744 \ubcf4\uad00\ud558\uc2ed\uc2dc\uc624.<\/p>\n<h3>Does a flexible grooved coupling remove the need for anchors and guides?<\/h3>\n<p>No. Its permitted movement must be incorporated into the piping support design. Confirm the product&#8217;s movement limits, installed condition and pressure effects with the responsible designer; flexible does not mean unrestrained or unlimited.<\/p>\n<h3>Can thread tape make BSP and NPT pipe fittings compatible?<\/h3>\n<p>No. Sealant does not change thread angle, pitch, taper or the required sealing interface. Identify both ends and use the specified mating components or an approved adapter. Do not use partial engagement as an acceptance test.<\/p>\n<h2>\ucc38\uace0\ubb38\ud5cc<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/b31-3-process-piping\" rel=\"nofollow noopener\" target=\"_blank\">ASME B31.3, \uacf5\uc815 \ubc30\uad00<\/a><\/li>\n<li><a href=\"https:\/\/www.astm.org\/a0053_a0053m-24.html\" rel=\"nofollow noopener\" target=\"_blank\">ASTM A53\/A53M, \ud30c\uc774\ud504, \uac15\ucca0, \ud751\uc0c9 \ubc0f \uc6a9\uc735 \uc544\uc5f0 \ub3c4\uae08, \uc6a9\uc811 \ubc0f \uc774\uc74c\ub9e4 \uc5c6\ub294 \ud30c\uc774\ud504<\/a><\/li>\n<li><a href=\"https:\/\/www.astm.org\/a0123_a0123m-24.html\" rel=\"nofollow noopener\" target=\"_blank\">ASTM A123\/A123M, \ucca0 \ubc0f \uac15\ucca0 \uc81c\ud488\uc758 \uc544\uc5f0(\uc6a9\uc735 \uc544\uc5f0 \ub3c4\uae08) \ucf54\ud305<\/a><\/li>\n<li><a href=\"https:\/\/www.iso.org\/standard\/64834.html\" rel=\"nofollow noopener\" target=\"_blank\">ISO 12944-1, \ub3c4\ub8cc\uc640 \ubc14\ub2c8\uc2dc \u2014 \ubcf4\ud638 \ub3c4\uc7a5 \uacc4\ud1b5\uc5d0 \uc758\ud55c \uac15\uad6c\uc870\ubb3c\uc758 \ubd80\uc2dd \ubc29\uc9c0<\/a><\/li>\n<li><a href=\"https:\/\/www.victaulic.com\/blog\/rigid-and-flexible-pipe-couplings-difference-history\/\" rel=\"nofollow noopener\" target=\"_blank\">Victaulic: Rigid and Flexible Pipe Couplings\u2014Differences and History<\/a><\/li>\n<li><a href=\"https:\/\/www.thehosemaster.co.uk\/blogs\/news\/bsp-vs-npt-whats-the-difference-and-are-they-compatible\" rel=\"nofollow noopener\" target=\"_blank\">The Hosemaster: BSP vs NPT\u2014What&#8217;s the Difference and Are They Compatible?<\/a><\/li>\n<\/ul>\n<h2>\uc694\uc57d<\/h2>\n<p>Choose a steel pipe coupling by measured pipe dimensions, joint function, service conditions and the exact sealing interface. For grooved systems, coordinate rigid or flexible behavior with the support design; for threaded systems, identify the full thread designation before assembly. Record the selected product, approved installation method and acceptance results together. This gives purchasing, installers and maintenance staff the same basis for deciding whether a joint is correct.<\/p>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>How to choose a steel pipe coupling: compare rigid and flexible designs by pipe dimensions, pressure, movement, corrosion, standards and installation access.<\/p>","protected":false},"author":2,"featured_media":5294,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-3890","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-insights"],"_links":{"self":[{"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/posts\/3890","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/comments?post=3890"}],"version-history":[{"count":8,"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/posts\/3890\/revisions"}],"predecessor-version":[{"id":5050,"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/posts\/3890\/revisions\/5050"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/media\/5294"}],"wp:attachment":[{"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/media?parent=3890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/categories?post=3890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microductconnector.com\/ko\/wp-json\/wp\/v2\/tags?post=3890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}