Mechanical Seal for Metal Bellows Seal Equivalent to John Crane 680

TYPE 680Low-temperature, General Duty All-Alloy-20 Edge-welded Metal Bellows SealThe Type 680 is the ideal seal for general-purpose applications. Its Alloy 20 bellows provide corrosion resistance in a broad range of services. Its cost-effective design, combined with a reliable performance history, has made the Type 680 the standard for many applications found in the chemical, water and wastewater, pulp and paper, and utility industries. Materials of Construction:Bellows: Alloy 20, Hastelloy-C, Titanium, or AM350 Adaptive Hardware: Alloy 20, Hastelloy-C, Titanium, or 316 Stainless Steel Faces: Carbon, Tungsten Carbide, or Sealide® Static Seals: Viton®, EPR, Viton, Buna-N, Kalrez®, or Chemraz® Performance Capabilities:Temperature: -75°C/-100°F to 200°C/400°F Pressure: vacuum to 20 bar/300 psi Speed: to 25 mps/4500 sfpm    Riscky LiMob: +86-17312558289Website: http://akman2006.en.made-in-china.com  /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1