Lug Style Resilient Seated General Purpose Butterfly Valve, Series/Model: Model 397-818, Nominal Size: 8 IN, Pressure Rating: 200 PSI, Ductile Iron Body Material, Gear Operator Operator Type, Stem Material: 416 Stainless Steel, Trim Material: 316 Stainless Steel Disc, Packing Material: Buna-N Stem, Seat Material: Buna-N, Industry Standards: API 609 Category A Design, API 598 Tested, ASME B16.1/B16.2 And MSS SP67, 17.2 IN Height, Lead Free: No, Other Physical Dimension: 3/4-10 UNC Thread, 11-3/4 IN Bolt Circle Diameter, Additional Specifications: Number Of Holes: 8

• All bodies are machined to high tolerances for guaranteed dimensions
• Series of snap rings and washers hold the stem, bushing and packing in and acts as a blowout-proof engagement
• Top bushings protects the stem from side thrust of operators and they are made of impact and corrosion resistant material
• Special double v-shape of stem seal self-adjusts to protect the stem area for either vacuum or pressure use
• Long neck allows for insulation requirements
• Disc edge is individually processed through machining and hand buffing for a smooth edge, providing a bubble tight shut-off and maximum seat life
• Stem and body are isolated from line media by the interference fit of the primary seal created between the disc and seat

Application: For industrial, HVAC, oil patch and agricultural services

• Specification https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/1000ABZ397812BFV_spec.pdf
• Technical Drawing https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/1000ABZ397812BFV_tech.pdf
• Brochure/Catalog https://www.macombgroup.com//ASSETS/DOCUMENTS/ITEMS/EN/1400ABZ201653001BFV_broc.pdf