{"id":8612,"date":"2026-08-24T16:27:40","date_gmt":"2026-08-24T08:27:40","guid":{"rendered":"https:\/\/atfits.com\/?post_type=product&p=8612"},"modified":"2026-08-24T20:12:56","modified_gmt":"2026-08-24T12:12:56","slug":"new-original-festo-2257-qm-1-2-1-2-pipe-socket-pneumatic-fitting","status":"publish","type":"product","link":"https:\/\/atfits.com\/es\/producto\/new-original-festo-2257-qm-1-2-1-2-pipe-socket-pneumatic-fitting\/","title":{"rendered":"New Original FESTO 2257 QM\u20111\/2\u20111\/2 Pipe Socket Pneumatic Fitting"},"content":{"rendered":"

New Original FESTO 2257 QM\u20111\/2\u20111\/2 Pipe Socket Pneumatic Fitting<\/h1>\n

Product Overview<\/h2>\n

The FESTO QM\u20111\/2\u20111\/2, part number 2257, is a straight female\u2011female threaded pipe sleeve from the QM fitting series. It acts as a pneumatic pipe socket coupler to connect two external G1\/2 male\u2011thread pneumatic components together within compressed\u2011air circuits. Manufactured from anodized wrought aluminum alloy, this fitting provides reliable threaded connection for pneumatic valves, air preparation units, manifold blocks and pneumatic piping systems. It is widely applied in automated production lines, packaging machinery, material\u2011handling equipment and general\u2011purpose industrial pneumatic systems for joining threaded pneumatic ports, extending pipe segments and assembling pneumatic control loops. It is suitable for compressed\u2011air and vacuum working conditions for indoor industrial automation equipment.<\/p>\n

Main Functions<\/h2>\n
    \n
  1. Thread connection coupling: Connects two G1\/2 male\u2011thread pneumatic ports to realize inline pipeline connection.<\/li>\n
  2. Pneumatic circuit extension: Extends or splices threaded pneumatic pipelines without modifying thread specifications.<\/li>\n
  3. Straight through\u2011type fluid passage: Delivers compressed air or vacuum flow with minimum flow resistance.<\/li>\n
  4. Pipeline assembly and modification: Supports quick on\u2011site rebuild or expansion of existing pneumatic circuits.<\/li>\n
  5. Uniform internal flow channel: Avoids sharp flow obstructions to maintain stable air\u2011circuit performance.<\/li>\n
  6. Hex outer profile: Allows standard wrench tightening for convenient installation and disassembly.<\/li>\n
  7. Compatible with standard G thread fittings: Matches FESTO and industry\u2011standard G\u2011thread pneumatic accessories.<\/li>\n
  8. Vacuum\u2011grade usability: Works for negative\u2011pressure vacuum pneumatic loop assembly.<\/li>\n<\/ol>\n

    Technical Characteristics<\/h2>\n
      \n
    • Anodized wrought aluminum alloy main body, anti\u2011corrosion surface treatment for industrial workshop environment.<\/li>\n
    • Double internal G1\/2 parallel female thread structure, straight\u2011through internal flow channel.<\/li>\n
    • Hexagonal outer geometry for spanner tool operation during mounting and removal.<\/li>\n
    • RoHS compliant material composition, meets industrial environmental requirements.<\/li>\n
    • LABS\u2011PWIS compliant, suitable for painting\u2011industry automation equipment applications.<\/li>\n
    • Wide operating pressure range, adapts to both positive compressed\u2011air pressure and vacuum conditions.<\/li>\n
    • Compact solid\u2011body structure, no internal moving parts, low failure rate and long service life.<\/li>\n
    • No built\u2011in sealing gaskets; external sealing rings are required for threaded joint sealing.<\/li>\n<\/ul>\n

      Product Dimensions and Weight<\/h2>\n\n\n\n\n\n\n\n\n\n
      Item<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
      Thread specification<\/td>\nG1\/2 female thread on both ends<\/td>\n<\/tr>\n
      Across\u2011flat hex size<\/td>\n27\u202fmm<\/td>\n<\/tr>\n
      Overall body length<\/td>\n42\u202fmm<\/td>\n<\/tr>\n
      Internal through\u2011hole nominal diameter<\/td>\n14\u202fmm<\/td>\n<\/tr>\n
      Net weight<\/td>\nApprox. 31\u202fg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Core Operating Parameters<\/h3>\n\n\n\n\n\n\n\n\n\n\n
      Parameter<\/th>\nQM\u20111\/2\u20111\/2 Specification<\/th>\n<\/tr>\n<\/thead>\n
      Operating medium<\/td>\nCompressed air, vacuum, inert gas<\/td>\n<\/tr>\n
      Operating pressure range<\/td>\n\u20110.95\u202fbar ~ 16\u202fbar<\/td>\n<\/tr>\n
      Ambient working temperature<\/td>\n\u201110\u202f\u2103 ~ +80\u202f\u2103<\/td>\n<\/tr>\n
      Body material<\/td>\nAnodized wrought aluminum alloy<\/td>\n<\/tr>\n
      Thread type<\/td>\nG parallel pipe thread<\/td>\n<\/tr>\n
      Compliance<\/td>\nRoHS, VDMA 24364\u2011B1\/B2\u2011L LABS standard<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      10 FESTO Products with Approximate Pneumatic Thread\u2011Coupling Functions<\/h2>\n
        \n
      1. QM\u20111\/8\u20111\/8 (2253)<\/strong>: QM series straight pipe socket sleeve, dual G1\/8 female threads, aluminum anodized housing, for small\u2011bore pneumatic pipeline splicing.<\/li>\n
      2. QM\u20111\/4\u20111\/4 (2254)<\/strong>: QM series female\u2011female sleeve with G1\/4 internal threads, compact size for small\u2011size valve island pneumatic circuit assembly.<\/li>\n
      3. QM\u20113\/8\u20113\/8 (2255)<\/strong>: QM series pipe socket coupler, double G3\/8 female threads, for medium\u2011flow pneumatic pipeline connection.<\/li>\n
      4. QM\u20111\u20111 (9968)<\/strong>: QM series large\u2011size straight sleeve, dual G1 female threads, heavy\u2011duty aluminum body for high\u2011flow pneumatic main pipelines.<\/li>\n
      5. NPFB\u2011D\u20111\/2<\/strong>: Nickel\u2011plated brass double\u2011nipple fitting, male\u2011to\u2011male G1\/2 thread, for connecting two female\u2011thread pneumatic ports.<\/li>\n
      6. NPFB\u2011L\u20111\/2<\/strong>: Nickel\u2011plated brass 90\u2011degree elbow threaded fitting, G1\/2 thread ports, for changing pneumatic pipeline flow direction.<\/li>\n
      7. NPFB\u2011T\u20111\/2<\/strong>: Nickel\u2011plated brass T\u2011branch threaded fitting with G1\/2 ports, used for three\u2011way pneumatic pipeline shunting.<\/li>\n
      8. QS\u20111\/2\u201112<\/strong>: Push\u2011in straight fitting, converts G1\/2 thread to 12\u202fmm pneumatic tubing, for quick\u2011connect soft\u2011tube transition.<\/li>\n
      9. ISV\u20111\/2<\/strong>: Thread\u2011type intermediate shut\u2011off valve with G1\/2 ports, combines pipeline connection and manual on\u2011off control function.<\/li>\n
      10. NPFC\u2011R\u20111\/2\u20113\/8<\/strong>: Reducing threaded sleeve fitting, female G1\/2 to female G3\/8, for connecting pneumatic components of different thread sizes.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

        New Original FESTO 2257 QM\u20111\/2\u20111\/2 Pipe Socket Pneumatic Fitting Product Overview The FESTO QM\u20111\/2\u20111\/2, part number 2257, is a straight<\/p>","protected":false},"featured_media":8613,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[96],"product_tag":[],"class_list":["post-8612","product","type-product","status-publish","has-post-thumbnail","product_cat-96","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nNew Original FESTO 2257 QM\u20111\/2\u20111\/2 Pipe Socket Pneumatic Fitting - Autofits<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atfits.com\/es\/producto\/new-original-festo-2257-qm-1-2-1-2-pipe-socket-pneumatic-fitting\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New Original FESTO 2257 QM\u20111\/2\u20111\/2 Pipe Socket Pneumatic Fitting - 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