NSF® 50 认证
1Flanged Iron Casing
The 850 Series iron casing is tapped for a drain, vent and pressure gauge. It includes a suction wear ring and can be rotated to various discharge positions. Standard ASME B16.1 flange-type suction and discharge nozzles facilitate installation and maintenance.
2Renewable Lead-Free Bronze Shaft Sleeve
The renewable lead-free bronze shaft sleeve insulates the shaft from abrasion and contact with pumped liquids.
3Mechanical Shaft Seals
Mechanical shaft seals feature Carbon/Ceramic/Buna-N and Stainless Steel components, eliminating maintenance and adjustment problems.
4Renewable Lead-Free Bronze Wearing Rings
Precision-made lead-free bronze wearing rings are pressed into the casing and/or adapter as required and are renewable, as well as easily replaced in the field.
5Single-Piece Enclosed Impeller
Made of aluminum bronze and keyed to the shaft, the single-piece enclosed impeller is precision balanced with the diameter cut for the specific condition point. On high-head units, the impeller back is drilled for hydraulic balance, limiting thrust load and reducing pressure in the sealing area. Aluminum bronze is a preferred material over stainless steel for its durability and superior corrosive resistance, especially in chlorine applications.
Designed to ASME B73.1 Specification.
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