PE pipe sdr به چه معناست ؟-نماینده عمومی خط لوله Hubei AD - لوله راه راه دو جداره AD HDPE

PE pipe sdr به چه معناست ؟

2025-08-19

در انتخاب و کاربرد لوله های پلی اتیلن اغلب با اصطلاح "SDR" مواجه می شویم. برای افراد غیرحرفه ای ، SDR ممکن است کمی ناآشنا به نظر برسد. بنابراین ، SDR لوله های پلی اتیلن دقیقاً به چه معناست ؟ اهمیت آن چیست ؟ این مقاله آن را به تفصیل برای شما توضیح می دهد و در ترکیب با محصولات لوله پلی اتیلن لوله های AD توضیح می دهد.

SDR ، نام کامل Standard Dimension Ratio است که به چینی به عنوان "نسبت اندازه استاندارد" ترجمه شده است. این یک پارامتر فنی مهم لوله های پلی اتیلن است. این به طور خاص به نسبت قطر خارجی اسمی (dn) به ضخامت دیواره اسمی (en) لوله اشاره دارد. با فرمول بیان می شود: SDR = dn / en.

از این تعریف ، می توان دریافت که SDR در واقع یک رابطه متناسب بین قطر بیرونی و ضخامت دیواره لوله های پلی اتیلن را منعکس می کند. بنابراین ، اهمیت عملی این نسبت چیست ؟ به طور کلی ، هر چه مقدار SDR بزرگتر باشد ، ضخامت دیواره اسمی خط لوله تحت همان قطر بیرونی اسمی نازکتر است. نازک شدن ضخامت دیواره مستقیماً بر ظرفیت تحمل فشار خط لوله تأثیر می گذارد. بنابراین ، هر چه مقدار SDR لوله پلی اتیلن بزرگتر باشد ، فشار داخلی کمتری می تواند تحمل کند. برعکس ، هرچه مقدار SDR کوچکتر باشد ، ضخامت دیواره خط لوله ضخیم تر باشد ، ظرفیت تحمل فشار آن قوی تر است.

در کاربردهای عملی ، تولید کنندگان حرفه ای مانند AD Pipe مجموعه ای از محصولات لوله پلی اتیلن را تولید خواهند کرد که انواع مشخصات مختلف SDR را پوشش می دهند ، مانند SDR11 ، SDR17.6 ، SDR21 ، SDR26 ، و غیره. این درجه های مختلف SDR با درجه های فشار متفاوتی مطابقت دارند. طراحان مهندسی لوله های پلی اتیلن با مشخصات SDR مناسب را با توجه به عوامل مختلفی مانند محیط انتقال خاص ، فشار کاری ، محیط تخمگذار و هزینه پروژه انتخاب می کنند.

به عنوان مثال ، اگر لوله اصلی برای انتقال آب لوله کشی با فشار بالا باشد ، معمولاً لوله های پلی اتیلن با مقدار SDR کمتر ، ضخامت دیواره ضخیم تر و ظرفیت تحمل فشار قوی تر انتخاب می شوند. برای برخی از سناریوهای زهکشی ، فاضلاب یا آبیاری زمین های کشاورزی که نیازی به فشار بالا ندارند ، می توان لوله های پلی اتیلن با مقدار SDR بزرگتر و نسبتاً مقرون به صرفه تر را انتخاب کرد. در طول فرآیند تولید لوله های AD ، استانداردهای مربوطه به شدت رعایت می شود تا اطمینان حاصل شود که مقدار SDR هر محصول لوله پلی اتیلن مطابق با الزامات طراحی است تا از عملکرد ایمن و قابل اعتماد محصول در شرایط کاری مختلف اطمینان حاصل شود.

درک معنای SDR لوله پلی اتیلن به ما کمک می کند تا لوله پلی اتیلن را به صورت علمی و منطقی تر انتخاب و استفاده کنیم تا از کیفیت مهندسی و اثر استفاده اطمینان حاصل کنیم. اگر در انتخاب لوله پلی اتیلن در انتخاب SDR شک دارید ، توصیه می شود با تکنسین های حرفه ای یا شرکت های تولیدی معمولی مانند AD Pipe مشورت کنید تا مناسب ترین راه حل را برای نیازهای پروژه خود دریافت کنید.

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