Slurry pump expeller ring , also known as expeller housing or stuffing box cover, is the key pressure-bearing wetted component at the shaft seal of AH, ZJ, HH series slurry pumps. It works together with expeller, shaft sleeve, packing and lantern ring to reduce medium pressure around the shaft seal via centrifugal pressure relief. Integrally cast with built-in pressure relief channels and packing cavity; standard flanged machining, compatible with mainstream Warman-type slurry pumps. Multiple material options including high chrome alloy, gray cast iron, 304/316 stainless steel to meet demands of wear resistance, acid & alkali resistance, low and high pressure conditions. Widely applied in mineral separation, tailings transportation, power plant desulfurization, coal washing, sand conveying, metallurgy and chemical slurry transportation. (2) Product Advantages Efficient pressure relief and axial force balance: Greatly counteract impeller axial thrust, reduce bearing load, extend bearing service life and cut downtime maintenance. Reduce shaft seal leakage: Lower pressure on packing and mechanical seals, prevent hard mineral particles from abrading seals and eliminate slurry overflow. Excellent wear and corrosion resistance: High chrome alloy resists erosion and particle impact; stainless steel withstands acid and alkali corrosion. Thickened working surface avoids erosion damage. Strong universality and interchangeability: CNC precision machining ensures high dimensional accuracy, fits all series slurry pumps and can directly replace original spare parts. Double isolation protection: Prevent abrasive slurry from entering bearing box to avoid lubricant contamination and shaft sleeve scratching. Easy installation and maintenance: Standard flange design allows independent replacement without disassembling the pump body; smooth inner cavity prevents slurry accumulation for easy cleaning. Stable pressure resistance & safe operation: Compact casting without pores or sand holes, no deformation or cracking under high pressure for reliable operation. Customization available: Custom thickened materials, anti-corrosion coatings and non-standard sizes for special corrosive and ultra-high pressure conveying conditions.