<h3 class="m-h3--wysiwyg">S Coupler KK Series Plug Male Thread Type specifications </h3><h4 class="m-h4--wysiwyg">Common specifications (reference) </h4><table class="m-table"><colgroup><col style="width:36.363636363636%;"><col style="width:63.636363636364%;"></colgroup><tbody><tr><th style="text-align: left;">Operating fluid </th><td style="text-align: center;">Air, water </td></tr><tr><th style="text-align: left;">Operating pressure range<sub >Note: </sub ></th><td style="text-align: center;">KK2: -100 kPa to 1 MPa <br>KK3: -90 kPa to 1 MPa <br>KK4/6: 0 to 1 MPa </td></tr><tr><th style="text-align: left;">Guaranteed proof pressure </th><td style="text-align: center;">1.5 MPa </td></tr><tr><th style="text-align: left;">Ambient temperature and working fluid temperature </th><td style="text-align: center;">Air: -5 to 60°C <br>Water: 5 to 40°C (no freezing) </td></tr><tr><th style="text-align: left;">Plating, seal </th><td style="text-align: center;">With electroless nickel plating (copper-free and fluorine-free application) and male thread sealant </td></tr></tbody></table><p class="u-fs-M">Note: Do not use with a leak tester or for vacuum retention because they are not guaranteed for zero leakage. </p><h4 class="m-h4--wysiwyg">Performance </h4><table class="m-table"><colgroup><col style="width:36.363636363636%;"><col style="width:63.636363636364%;"></colgroup><tbody><tr><th style="text-align: left;">Plug/socket connection method </th><td style="text-align: center;">One-touch connection </td></tr><tr><th style="text-align: left;">Check valve </th><td style="text-align: center;">Socket: check valve built-in (standard) </td></tr><tr><th style="text-align: left;">Sleeve lock mechanism<sub >Note: </sub ></th><td style="text-align: center;">Manual locking type (standard) </td></tr></tbody></table><p class="u-fs-M">Note: The KK2 series does not include a lock mechanism. </p><h4 class="m-h4--wysiwyg">Effective area </h4><table class="m-table"><colgroup><col style="width:35.714285714286%;"><col style="width:32.142857142857%;"><col style="width:32.142857142857%;"></colgroup><thead><tr><th style="text-align: center;">Body size </th><th style="text-align: center;">Plug </th><th style="text-align: center;">Effective area mm<sup>2</sup> </th></tr></thead><tbody><tr><td style="text-align: center;">M5 </td><td style="text-align: center;">KK2P-M5M </td><td style="text-align: center;">3.8 </td></tr><tr><td style="text-align: center;">1/8 </td><td style="text-align: center;">KK3P-01MS </td><td style="text-align: center;">20 </td></tr><tr><td style="text-align: center;">1/4 </td><td style="text-align: center;">KK4P-02MS </td><td style="text-align: center;">39 </td></tr><tr><td style="text-align: center;">1/2 </td><td style="text-align: center;">KK6P-04MS </td><td style="text-align: center;">82 </td></tr></tbody></table><h4 class="m-h4--wysiwyg">Flow rate characteristics</h4><div class="m-cols" data-autoheight="group"><div class="m-cols__wrap"><div class="m-cols__1of2"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w01.jpg" alt="KK2 / Air (0 to 1 MPa) "></div><p>KK2 / Air (0 to 1 MPa)</p></div></div><div class="m-cols__1of2"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w02.jpg" alt="KK2 / Water (0 to 0.4 MPa) "></div><p>KK2 / Water (0 to 0.4 MPa)</p></div></div></div></div><div class="m-cols" data-autoheight="group"><div class="m-cols__wrap"><div class="m-cols__1of2"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w03.jpg" alt="KK3, 4, 6 / Air (0 to 1 MPa) "></div><p>KK3, 4, 6 / Air (0 to 1 MPa)</p></div></div><div class="m-cols__1of2"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w04.jpg" alt="KK3, 4, 6 / Water (0 to 0.4 MPa) "></div><p>KK3, 4, 6 / Water (0 to 0.4 MPa) </p></div></div></div></div><h4 class="m-h4--wysiwyg">External appearance / dimensional drawing</h4><div class="m-cols" data-autoheight="group"><div class="m-cols__wrap"><div class="m-cols__1of4"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w05.jpg" alt="KK2 external appearance "></div><p>KK2 external appearance</p></div></div><div class="m-cols__1of4"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w06.jpg" alt="KK2 dimensional drawing "></div><p>KK2 dimensional drawing</p></div></div><div class="m-cols__1of4"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w07.jpg" alt="KK3, 4, 6 external appearance "></div><p>KK3, 4, 6 external appearance</p></div></div><div class="m-cols__1of4"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w08.jpg" alt="KK3, 4, 6 dimensional drawing "></div><p>KK3, 4, 6 dimensional drawing </p></div></div></div></div><table class="m-table"><colgroup><col style="width:12.037037037037%;"><col style="width:11.111111111111%;"><col style="width:12.962962962963%;"><col style="width:8.3333333333333%;"><col style="width:8.3333333333333%;"><col style="width:8.3333333333333%;"><col style="width:8.3333333333333%;"><col style="width:8.3333333333333%;"><col style="width:12.037037037037%;"><col style="width:10.185185185185%;"></colgroup><thead><tr><th style="text-align: center;">Body size </th><th style="text-align: center;">Model </th><th style="text-align: center;">T <br>Connection port diameter </th><th style="text-align: center;">H <br>Width across flats </th><th style="text-align: center;">L<sub >1</sub ></th><th style="text-align: center;">L<sub >2</sub ></th><th style="text-align: center;">*A </th><th style="text-align: center;">Minimum hole diameter </th><th style="text-align: center;">Effective area mm<sup>2</sup> </th><th style="text-align: center;">Weight <br>g </th></tr></thead><tbody><tr><td rowspan="2" style="text-align: center;">M5 </td><td style="text-align: left;">KK2P-M5M </td><td style="text-align: center;">M5 × 0.8 </td><td style="text-align: center;">7 </td><td style="text-align: center;">18.8 </td><td rowspan="2" style="text-align: center;">12.3 </td><td style="text-align: center;">15.8 </td><td style="text-align: center;">2.5 </td><td style="text-align: center;">4.4 </td><td style="text-align: center;">2.6 </td></tr><tr><td style="text-align: left;">KK2P-01MS </td><td style="text-align: center;">R1/8 </td><td rowspan="2" style="text-align: center;">10 </td><td style="text-align: center;">22.3 </td><td style="text-align: center;">19.2 </td><td style="text-align: center;">3.4 </td><td style="text-align: center;">8.1 </td><td style="text-align: center;">3.0 </td></tr><tr><td rowspan="3" style="text-align: center;">1/8 </td><td style="text-align: left;">KK3P-01MS </td><td style="text-align: center;">R1/8 </td><td style="text-align: center;">29.5 </td><td rowspan="3" style="text-align: center;">18.4 </td><td style="text-align: center;">26.4 </td><td rowspan="4" style="text-align: center;">6.0 </td><td rowspan="4" style="text-align: center;">22.6 </td><td style="text-align: center;">8.4 </td></tr><tr><td style="text-align: left;">KK3P-02MS </td><td style="text-align: center;">R1/4 </td><td style="text-align: center;">14 </td><td style="text-align: center;">32.9 </td><td style="text-align: center;">27.4 </td><td style="text-align: center;">14.2 </td></tr><tr><td style="text-align: left;">KK3P-03MS </td><td style="text-align: center;">R3/8 </td><td style="text-align: center;">17 </td><td style="text-align: center;">34.3 </td><td style="text-align: center;">28.9 </td><td style="text-align: center;">28.1 </td></tr><tr><td rowspan="4" style="text-align: center;">1/4 </td><td style="text-align: left;">KK4P-01MS </td><td style="text-align: center;">R1/8 </td><td rowspan="2" style="text-align: center;">14 </td><td style="text-align: center;">36.1 </td><td rowspan="4" style="text-align: center;">25.2 </td><td style="text-align: center;">33.0 </td><td style="text-align: center;">17.0 </td></tr><tr><td style="text-align: left;">KK4P-02MS </td><td style="text-align: center;">R1/4 </td><td style="text-align: center;">39.7 </td><td style="text-align: center;">34.2 </td><td rowspan="3" style="text-align: center;">9.0 </td><td rowspan="3" style="text-align: center;">50.9 </td><td style="text-align: center;">20.2 </td></tr><tr><td style="text-align: left;">KK4P-03MS </td><td style="text-align: center;">R3/8 </td><td style="text-align: center;">17 </td><td style="text-align: center;">41.1 </td><td style="text-align: center;">35.7 </td><td style="text-align: center;">32.5 </td></tr><tr><td style="text-align: left;">KK4P-04MS </td><td style="text-align: center;">R1/2 </td><td style="text-align: center;">22 </td><td style="text-align: center;">45.3 </td><td style="text-align: center;">38.2 </td><td style="text-align: center;">57.4 </td></tr><tr><td rowspan="3" style="text-align: center;">1/2 </td><td style="text-align: left;">KK6P-03MS </td><td style="text-align: center;">R3/8 </td><td style="text-align: center;">19 </td><td style="text-align: center;">46.9 </td><td rowspan="3" style="text-align: center;">31.0 </td><td style="text-align: center;">41.5 </td><td style="text-align: center;">11.0 </td><td style="text-align: center;">76.0 </td><td style="text-align: center;">44.7 </td></tr><tr><td style="text-align: left;">KK6P-04MS </td><td style="text-align: center;">R1/2 </td><td style="text-align: center;">22 </td><td style="text-align: center;">51.1 </td><td style="text-align: center;">44.0 </td><td rowspan="2" style="text-align: center;">13.0 </td><td rowspan="2" style="text-align: center;">106.2 </td><td style="text-align: center;">53.7 </td></tr><tr><td style="text-align: left;">KK6P-06MS </td><td style="text-align: center;">R3/4 </td><td style="text-align: center;">27 </td><td style="text-align: center;">55 </td><td style="text-align: center;">45.5 </td><td style="text-align: center;">94.4 </td></tr></tbody></table><p class="u-fs-M">*Reference dimensions after screwing in R thread. </p><h4 class="m-h4--wysiwyg">One-touch connection </h4><p class="u-fs-M">Easy to connect with one hand. Improved workability.</p><div class="m-cols" data-autoheight="group"><div class="m-cols__wrap"><div class="m-cols__1of2"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w09.jpg" alt="Connection method 1 "></div><p>Connection method 1</p></div></div><div class="m-cols__1of2"><div class="m-thumbnail"><div class="m-thumbnail__img has-border" data-autoheight="item"><img src="//fr.misumi-ec.com/linked/vitem/mech/SMC1/221006298156/img/221006298156_jh_w10.jpg" alt="Connection method 2 "></div><p>Connection method 2 </p></div></div></div></div><p class="u-fs-M">*Refer to the manufacturer's catalog for specifications other than those above.</p>