{"product_id":"ast-advanced-sealing-ast-50-mechanical-seal-rotary-unit","title":"AST Advanced Sealing AST-50 Mechanical Seal Rotary Unit","description":"\u003cdiv\u003e\u003cp\u003eThe AST Advanced Sealing AST-50 Rotary Unit is a single outside mechanical seal designed to slide over the shaft and seal in corrosive or low-pressure service without any metal parts in direct contact with the pumped liquid. The 1-3\/8\" bore matches common shaft sizes, and the unit is intended for ANSI pumps and many other configurations, including Fybroc and Flowserve GRP non-metallic pumps. This externally mounted, hydraulically balanced seal uses a preset, multi-spring arrangement with springs isolated from the fluid, eliminating the need for sleeves, steps in the shaft, or pump modifications. Installation is quick and simple: slide the rotary unit over the shaft until it contacts the stationary face, tighten the drive ring, and remove the retaining clips. The AST-50 is positioned as a low-cost replacement for exotic-metal seals and is suitable for applications where outside sealing is preferred or required, including food processing environments where sanitation and cleanability are important.\u003c\/p\u003e\u003c\/div\u003e","brand":"AST","offers":[{"title":"New","offer_id":51660297863470,"sku":null,"price":725.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_b4e266db-7186-4db0-8200-02096f3f9c02.jpg?v=1769535808","url":"https:\/\/plgautomation.com\/products\/ast-advanced-sealing-ast-50-mechanical-seal-rotary-unit","provider":"PLG Automation ","version":"1.0","type":"link"}