Impeller B1127NA-A05 for 1.5/1B-AH Slurry Pump

Product Overview

B1127NA-A05 High Chrome Impeller, Wear Spare Part for 1.5/1B-AH Heavy-Duty Slurry Pump

B1127NA-A05 high chrome alloy impeller, interchangeable spare wear part for 1.5/1B-AH heavy duty slurry pump, closed 5-vane design, A05 high chromium white iron with excellent anti-abrasion performance, used for mining tailings, sand slurry conveying.

B1127NA-A05 Impeller is the standard wet end spare part for 1.5/1B-AH horizontal heavy-duty slurry pump. It is cast from A05 high chrome white iron with 27% chromium content, featuring excellent erosion and abrasion resistance for mineral slurry, sand and tailings conveying.This closed 5-vane impeller is fully interchangeable with original Warman parts, matching perfectly with volute, frame plate liner and B005M bearing assembly. It is widely applied in mineral processing, sand washing and tailings discharge industries.

1. Basic Model Code Explanation

• Part code B1127NA: The letter B stands for slurry pumps equipped with B-series bearing cartridge; 1127 is the original factory drawing number; NA refers to standard closed metal impeller, compatible with both packing seal and expeller seal structures.

• Material grade A05: High-chromium abrasion-resistant white cast iron with 26% chromium alloy, the standard wear-resistant material for mining slurry pumps, featuring high hardness and outstanding erosion resistance.

• Matching pump model: 1.5/1B-AH horizontal heavy-duty slurry pump with 1.5-inch suction inlet and 1-inch discharge outlet.

2. Structural & Processing Features

• Structure: Standard 5-vane closed impeller with back auxiliary vanes on the rear face. The back vanes counteract axial thrust during operation, block slurry from entering the packing chamber and reduce wear of shaft seals.

• Manufacturing process: Produced by precision investment casting for integrated forming. All mating surfaces are CNC machined to achieve full interchangeability with original spare parts without any modification to internal pump components.

• Dynamic balance: Every impeller undergoes strict dynamic balance correction up to ISO 1940 Grade G6.3, eliminating vibration during high-speed operation and ensuring stable running performance.

• Material performance: A05 high-chromium material forms hard chromium carbide phases inside, delivering far superior abrasion resistance compared to G01 grey cast iron, effectively resisting erosion from solid particles.

3. Matching Pump Technical Parameters

• Applicable pump type: Horizontal heavy-duty slurry pump model 1.5/1B-AH

• Port size: 1.5-inch suction inlet, 1-inch discharge outlet

• Applicable rotating speed: 1200 – 3800 r/min

• Normal flow range: 12.6 – 28.8 m³/h

• Normal head range: 6 – 68 m

• Compatible sealing types: Packing seal, expeller dynamic seal

• Suitable medium pH value: pH ≥ 4, neutral and weakly acidic slurry

4. Application Scenarios

1. Mining industry: Cyclone feeding, fine sand recovery and short-distance tailings transportation for small mineral processing plants;

2. Power & environmental protection: Conveying fly ash and slag slurry in thermal power plants;

3. Construction & engineering: Transporting sand mixed slurry and small-scale river dredging;

4. Other working conditions: Sand washing plants, small metallurgical slag transportation and other scenarios conveying highly abrasive solid-liquid mixed media.

5.1.5/1 AH Slurry Pump Complete Parts