A. Furnish and deliver a complete mechanical seal assembly for a progressive cavity pump as specified herein for the Department of Environmental Services, City and County of Honolulu. The mechanical seal will replace the existing mechanical seal in the existing progressive cavity pump at the Sand Island Wastewater Treatment Plant. B. Existing Progressive Cavity Pump Information. 1. Brand Name: Netzsch 2. Model No.: NM076SY01LO7K II. Minimum Specifications. A. Brand Name, Part Number: John Crane, 613086, or approved substitute B. Construction: 1. Mating Ring: Silicon Carbide 2. Primary Ring: Carbon 3. Drive, Retainer, Sleeve, Gland Plate, Collar: 316 Stainless Steel 4. Springs: Alloy C-278 5. O-Rings: Fluoroelastomer (Viton®) 6. Seal Type: Double Cartridge (Type 5620-style, customized) 7. Seal Plan: API Plan 54 (external pressurized barrier fluid) 8. Seal Pressure: 75 PSI 9. Ambient Temperature: 70F 10. Fluid: Waste Water 11. Shaft Size: 2.965" (approx. 75.3 mm) 12. Max Speed: 1800 RPM
