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شیر اطمینان با اتصال فلنچی یوشیتاکه سری AF4
شیر اطمینان با اتصال فلنچی یوشیتاکه سری AF4 ، نوعی شیر تخلیه مستقیم بوده که به وسیله فشار استاتیک در قسمت بالا دست جریان عمل می کند.
این محصول شرکت یوشیتاکه yoshitake به صورت خودکار عمل می کند و نیازی به اپراتور ندارد.
این ویژگی براساس تنظیمی که قبلا صورت گرفته در صورت بالا رفتن فشار تا حدی معین مستقیما عمل نموده و فشار اضافی را تخلیه می نماید.
شیر اطمینان یا شیر ایمنی با اتصال فلنجی یوشیتاکه سری AF4 ، مجددا در کمی پایین تر از فشار تنظیم شده مسیر تخلیه را مسدود کرده و از هدر رفتن سیال جلوگیری می کند.
شیرهای ایمنی و اطمینان safety relife valve با توجه به کاربرد و محل به کارگیری شان به 3 دسته تقسیم می شود :
1- شیرهای ایمنی safety valves برای کنترل فشار مسیرها یا مخازن حاوی گازها
2- شیر های اطمینان یا Relife valves برای کنترل فشارها یا مخازن حاوی مایعات
3- شیرهای ایمنی/اطمینان Safety Relife Valves برای مسیرها یا مخازن حاوی گاز، مایع و یا جریان دو فازی
در واقع شیر اطمینان با اتصال فلنجی یوشیتاکه سری AF4 را می توان جزو مورد شماره 3 محسوب کرد.
منشاء استفاده از دو نام ایمنی و اطمینان در خواص گازها و مایعات نهفته است.
گازها تراکم پذیرند بدین معنا که در یک سیستم تحت فشار گاز متراکم می شود.
بنابراین برای تخلیه فشار نیز باید حجم قابل توجهی از گاز متراکم شده را از سیستم خارج کرد.
اما در مایعات به دلیل تراکم ناپذیری تخلیه مقدار کمی سیال فشار سیستم را تا حد قابل توجهی کاهش می دهد.
از همین رو تفاوت اساسی شیرهای ایمنی و اطمینان در ساز و کار باز شدن آن ها است.
جهت بازدید و خرید این محصول به نمایشگاه شادآباد مراجعه فرمائید.
ویژگی های فنی شیر اطمینان با اتصال فلنچی یوشیتاکه سری AF4
– جنس بدنه : چدن
– جنس فنر : چدن
– نوع اتصال : فلنجی
– از سایز 2 اینچ تا 6 اینچ
– نوع شیر اطمینان : اهرم دار
– جنس سیت : استنلس استیل
– نوع کانکشن : JIS 10k FF flanged
– حداکثر دمای کارکرد : 220 درجه سانتیگراد
– کاربرد : سیال بخار، هوا و سایر میعانات غیر خورنده
– محدوده فشار کارکرد : از 0.1 مگاپاسکال تا 1.0 مگاپاسکال
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