Detailed Product Description Details for valve: Size: 1"-20"(DN25-DN500);Rating: ANSI 150lb-2500lb (PN16-PN420);Temperature:<980 degreeMaterial: Carbon steel, Stainless steel, Super duplex stainless steel, Alloy steel, Special alloy steel, etc.;Design: API 6D, BS5351, ASME B16.34;Structure: two piece, three piece, casting, forging, buried with extended stem; Operation: Lever, Gear, electric, ...