{"product_id":"verschlusskupplung-nbr-din-3489-mit-ohne-kette","title":"Blank-end coupling with NBR rubber seal, DIN 3489, with or without chain, malleable cast iron, galvanized, max. PN 10","description":"\u003ch5\u003eKrause K+K blank-end coupling DIN 3489 – Securely seal unused compressed-air connections\u003c\/h5\u003e\u003cp\u003eThe Krause K+K blank-end coupling is used to seal open connections within the standard claw coupling system in accordance with DIN 3489. It features a symmetrical coupling head with two claws, a 42 mm claw spacing, and double safety cams, and—like the other couplings in the system—is locked by rotating it approximately 45°.\u003c\/p\u003e\u003cp\u003eThe robust design is made of zinc-plated malleable cast iron and is equipped with an NBR rubber seal. The temperature range is from −40 °C to +100 °C, and the maximum operating pressure is PN 10. Depending on the application, you can choose between a version without a chain and a version with a chain. The chain keeps the blank-end coupling readily available at the connection point and reduces the risk of losing the removed blank-end coupling.\u003c\/p\u003e\u003chr\u003e\u003ch5\u003eBenefits\u003c\/h5\u003e\u003cp\u003e✅ Compatible with the DIN 3489 standard claw coupling system\u003cbr\u003e✅ 42 mm claw spacing with double safety cams\u003cbr\u003e✅ Heavy-duty malleable cast iron, galvanized\u003cbr\u003e✅ NBR rubber seal\u003cbr\u003e✅ Optional: with or without chain\u003cbr\u003e✅ Quick locking with an approx. 45° rotation\u003cbr\u003e✅ For open compressed-air connections on pipes, manifolds, and systems\u003cbr\u003e✅ Temperature range: −40 °C to +100 °C\u003cbr\u003e✅ Maximum operating pressure PN 10\u003c\/p\u003e\u003chr\u003e\u003ch5\u003eTechnical Specifications\u003c\/h5\u003e\u003cdiv style=\"overflow-x:auto;border:1px solid #d9d9d9;border-radius:10px;\"\u003e\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0;min-width:680px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f3f3f3;\"\u003e\n\u003cth style=\"position:sticky;left:0;z-index:2;background:#f3f3f3;padding:10px;text-align:center;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding:10px;text-align:center;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"position:sticky;left:0;background:#fff;padding:10px;text-align:center;\"\u003eTranslation\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;\"\u003eblank-end coupling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa;\"\u003e\n\u003ctd style=\"position:sticky;left:0;background:#fafafa;padding:10px;text-align:center;\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;\"\u003eDIN 3489\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"position:sticky;left:0;background:#fff;padding:10px;text-align:center;\"\u003eclaw spacing\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;\"\u003e42 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa;\"\u003e\n\u003ctd style=\"position:sticky;left:0;background:#fafafa;padding:10px;text-align:center;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;\"\u003eMalleable cast iron, galvanized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"position:sticky;left:0;background:#fff;padding:10px;text-align:center;\"\u003eGasket\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;\"\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa;\"\u003e\n\u003ctd style=\"position:sticky;left:0;background:#fafafa;padding:10px;text-align:center;\"\u003eTemperature range\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;\"\u003e−40 °C to +100 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"position:sticky;left:0;background:#fff;padding:10px;text-align:center;\"\u003eoperating pressure\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;\"\u003emax. PN 10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003chr\u003e\u003ch5\u003eVariants\u003c\/h5\u003e\u003cdiv style=\"overflow-x:auto;border:1px solid #d9d9d9;border-radius:10px;\"\u003e\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0;min-width:680px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f3f3f3;\"\u003e\n\u003cth style=\"position:sticky;left:0;z-index:2;background:#f3f3f3;padding:10px;text-align:center;\"\u003eTranslation\u003c\/th\u003e\n\u003cth style=\"padding:10px;text-align:center;\"\u003eItem No. \/ SKU\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"position:sticky;left:0;background:#fff;padding:10px;text-align:center;\"\u003ewithout chain\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;\"\u003e008-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa;\"\u003e\n\u003ctd style=\"position:sticky;left:0;background:#fafafa;padding:10px;text-align:center;\"\u003ewith chain\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;\"\u003e008-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003chr\u003e\u003ch5\u003eHow It Works and Compatibility\u003c\/h5\u003e\u003cp\u003e✔ Symmetrical 42-mm coupling head according to DIN 3489\u003cbr\u003e✔ Locks by turning approximately 45°\u003cbr\u003e✔ For securely sealing unused connections on the standard claw coupling system\u003cbr\u003e✔ Compatible with the various connection types of the DIN 3489 standard system\u003cbr\u003e✔ The version with a chain remains immediately available at the designated connection point after opening\u003c\/p\u003e\u003chr\u003e\u003ch5\u003eApplications\u003c\/h5\u003e\u003cp\u003e✔ Open connections to compressors and compressed-air lines\u003cbr\u003e✔ Compressed-air manifolds and mobile distribution stations\u003cbr\u003e✔ Workshop and industrial equipment\u003cbr\u003e✔ Compressed Air Supply for Construction Sites\u003cbr\u003e✔ Blasting technology and pneumatic systems within the permissible operating parameters\u003c\/p\u003e\u003chr\u003e\u003ch5\u003eFAQ\u003c\/h5\u003e\u003cp\u003e\u003cstrong\u003eWhat is the claw spacing of the blank-end coupling?\u003c\/strong\u003e\u003cbr\u003eThe claw spacing is 42 mm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich gasket is installed?\u003c\/strong\u003e\u003cbr\u003eAn NBR rubber seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum operating pressure?\u003c\/strong\u003e\u003cbr\u003eMaximum PN 10.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the version with a chain?\u003c\/strong\u003e\u003cbr\u003eThe chain holds the blank-end coupling in place at the designated connection and reduces the risk of the locking mechanism being misplaced or lost when opened.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the blank-end coupling be used with standard DIN 3489 couplings?\u003c\/strong\u003e\u003cbr\u003eYes. It uses the same 42-mm coupling head as the standard system.\u003c\/p\u003e\u003chr\u003e\u003ch5\u003eConclusion\u003c\/h5\u003e\u003cp\u003eThe Krause K+K blank-end coupling, conforming to DIN 3489, is a simple, robust, and technically suitable solution for closing open compressed-air connections. Made of zinc-plated malleable cast iron with an NBR seal, a 42 mm claw spacing, and rated at PN 10, it is a durable accessory for professional compressed-air systems. The version with a chain offers the additional practical advantage that the shut-off device remains accessible directly at the connection.\u003c\/p\u003e","brand":"Krause K+K","offers":[{"title":"without chain","offer_id":53842995642715,"sku":"008-00","price":3.33,"currency_code":"EUR","in_stock":true},{"title":"with chain","offer_id":53842996035931,"sku":"008-01","price":5.71,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0876\/8526\/7803\/files\/verschlusskupplung-mit-gummidichtung-ohne-kette-din-3489.jpg?v=1787232016","url":"https:\/\/strahltechnik-express.de\/en-lu\/products\/verschlusskupplung-nbr-din-3489-mit-ohne-kette","provider":"ABS Strahltechnik","version":"1.0","type":"link"}