{"id":4795,"date":"2026-07-06T08:25:10","date_gmt":"2026-07-06T08:25:10","guid":{"rendered":"https:\/\/csdcanteen.com\/228\/?page_id=4795"},"modified":"2026-11-04T11:09:30","modified_gmt":"2026-11-04T11:09:30","slug":"mhi-series","status":"publish","type":"page","link":"https:\/\/csdcanteen.com\/228\/mhi-series\/","title":{"rendered":"MHI Series"},"content":{"rendered":"\t\t
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mhi Series<\/h1>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tThe MHI Series Branch Piping Kit \u2014 heavier-gauge copper, longer engagement zones, and a 5.2 MPa pressure guarantee, engineered for VRF systems where a callback isn’t an option \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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\u201cThe Branch Joint Built for Systems That Can't Afford to Fail.\u201d\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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The MHI Series is manufactured to a tolerance. 227 Enterprise Pvt. Ltd. offers MHI Series VRF Refrigerant Branch Piping Kits for accurate installation, effective refrigerant distribution and reliable long term performance \u2013 the type of joint a consultant demands when the project really can\u2019t afford a leak three floors up. Each kit has two intentionally enlarged copper Y joints. That is, they have thicker copper walls than a typical fitting, with a longer engagement zone at each brazed connection. That little additional length isn’t for looks, it means greater surface area for the braze to latch onto, which increases mechanical strength and offers refrigerant a smoother passage through the split, with significantly less internal turbulence where flow has to change direction. The multi-step setup then conducts the matching work, stepping down through the exact pipe sizes a project needs for, so alignment stays accurate and installation works faster without an adapter fitting bridging the gap.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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All kits come with fire grade XLPE or Armaflex Class O NBR insulation \u2013 two separate systems, not an alternative with a different name. Fire-grade XLPE is preferred for its thermal retention and ability to resist combustion. Class O NBR gets the nod for its flexibility, moisture resistance and compliance with tough fire, smoke and toxicity ratings. So the choice depends on which safety and performance profile a particular project actually needs. Either choice keeps condensation off the copper \u2014 a joint that sweats is a joint already losing the case against corrosion \u2014 and keeps refrigerant temperature stable enough that the system is not quietly bleeding efficiency zone by zone. But none of this counts until the joint has been pressure tested: every MHI Series unit is hydro-tested at 5.2 MPa, or roughly 754 psi, well above normal operating levels, so a leak-free seal isn’t just a line on a spec sheet \u2014 it’s a number this Series has already been tested against, one joint at a time, for reliable, safe operation in demanding commercial and residential VRF installations.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n \n Product <\/span> \n \n Specification<\/b> <\/span>\n <\/h4>\n <\/div>\n \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Model Number<\/th>Pipe<\/th>Pipe A (ID)<\/th>Pipe B (ID)<\/th>Pipe C (ID)<\/th>Reducers Number & Qty<\/th><\/tr><\/thead>
Pi-DIS-22-1G<\/td>Gas Side<\/td>12.7 (1\/2) – 15.88 (5\/8) – 19.05 (3\/4)<\/td>15.88 (5\/8) – 12.7 (1\/2) – 9.52 (3\/8)<\/td>15.88 (5\/8) – 12.7 (1\/2) – 9.52 (3\/8)<\/td>4 X 1 Nos, 5 X 1 Nos, 6 X 1 Nos<\/td><\/tr>
Liquid Side<\/td>9.52 (3\/8)<\/td>9.52 (3\/8) – 6.35 (1\/4)<\/td>9.52 (3\/8) – 6.35 (1\/4)<\/td><\/tr>
Pi-DIS-180-1G<\/td>Gas Side<\/td>15.88 (5\/8) 19.05 (3\/4) – 22.22 (7\/8)<\/td>19.05 (3\/4) – 15.88 (5\/8) – 12.7 (1\/2) – 9.52 (3\/8)<\/td>19.05 (3\/4) – 15.88 (5\/8) – 12.7 (1\/2) – 9.52 (3\/8) – 6.35 (1\/4)<\/td>7 X 1 Nos, 8 X 1 Nos, 9 X 1 Nos, 2 X 1 Nos, 3 X 1 Nos, 10 X 1 Nos<\/td><\/tr>
Liquid Side<\/td>9.52 (3\/8) – 12.7 (1\/2) – 15.88 (5\/8)<\/td>12.7 (1\/2) – 9.52 (3\/8) – 6.35 (1\/4)<\/td>12.7 (1\/2) – 9.52 (3\/8) – 6.35 (1\/4)<\/td><\/tr>
Pi-DIS-371-1G<\/td>Gas Side<\/td>25.4 (1) 28.58 (1-1\/8) – 31.75 (1-1\/4)<\/td>25.4 (1) – 22.22 (7\/8) – 19.05 (3\/4)<\/td>25.4 (1) – 22.22 (7\/8) – 19.05 (3\/4)<\/td>1 X 1 Nos, 11 X 1 Nos, 10 X 1 Nos, 8 X 1 Nos, 7 X 2 Nos, 9 X 1 Nos<\/td><\/tr>
Liquid Side<\/td>12.7 (1\/2) – 15.88 (5\/8)<\/td>15.88 (5\/8) 12.7 (1\/2) – 9.52 (3\/8) – 6.35 (1\/4)<\/td>15.88 (5\/8) 12.7 (1\/2) – 9.52 (3\/8) – 6.35 (1\/4)<\/td><\/tr>
Pi-DIS-540-2G<\/td>Gas Side<\/td>28.58 (1-1\/8) – 31.75 (1-1\/4) – 38.1 (1-1\/2)<\/td>31.75 (1-1\/4) – 28.58 (1-1\/8) – 25.4 (1) 19.05 (3\/4)<\/td>31.75 (1-1\/4) – 28.58 (1-1\/8) – 25.4 (1) 19.05 (3\/4)<\/td>12 X 1 Nos<\/td><\/tr>
Liquid Side<\/td>12.7 (1\/2) – 15.88 (5\/8) – 19.05 (3\/4) – 22.22 (7\/8)<\/td>19.05 (3\/4) 15.88 (5\/8) – 12.7 (1\/2) – 9.52 (3\/8)<\/td>19.05 (3\/4) – 15.88 (5\/8) – 12.7 (1\/2) – 9.52 (3\/8)<\/td><\/tr>
Pi-DOS-2A-1G<\/td>Gas Side<\/td>31.75 (1-1\/4) – 38.1 (1-1\/2)<\/td>28.58 (1-1\/8) – 25.4 (1)<\/td>28.58 (1-1\/8) – 25.4 (1)<\/td><\/tr>
Liquid Side<\/td>15.88 (5\/8) – 19.05 (3\/4) – 22.22 (7\/8)<\/td>12.7 (1\/2)<\/td>12.7 (1\/2)<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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\n \n Reducer Number & Size<\/span> \n \n <\/b> <\/span>\n <\/h4>\n <\/div>\n \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1<\/td>\n34.92 (1-3\/8) ID X 38.1 (1-1\/2) OD<\/td>\n7<\/td>\n22.22 (7\/8) ID X 25.4 (1) OD<\/td>\n<\/tr>\n
2<\/td>\n34.92 (1-3\/8) ID X 31.75 (1-1\/4) OD<\/td>\n8<\/td>\n12.7 (1\/2) ID X 19.05 (3\/4) OD<\/td>\n<\/tr>\n
3<\/td>\n28.58 (1-1\/8) ID X 25.4 (1) OD<\/td>\n9<\/td>\n9.52 (3\/8) ID X 19.05 (3\/4) OD<\/td>\n<\/tr>\n
4<\/td>\n25.4 (1) ID X 22.22 (7\/8) OD<\/td>\n10<\/td>\n15.88 (5\/8) ID X 19.05 (3\/4) OD<\/td>\n<\/tr>\n
5<\/td>\n28.58 (1-1\/8) ID X 22.22 (7\/8) OD<\/td>\n11<\/td>\n25.4 (1) ID X 28.58 (1 1\/8) OD<\/td>\n<\/tr>\n
6<\/td>\n22.22 (7\/8) ID X 19.05 (3\/4) OD<\/td>\n12<\/td>\n6.35 (1\/4) ID X 9.52 (3\/8) OD<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div> \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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