AY Horizontal centrifugal petrochemical oil pump

AY-type hot oil pump is a high-temperature oil transfer equipment. It is suitable for transporting media such as petroleum and liquefied gas without solid particles in fields like petroleum refining, chemical industry, and oilfield gathering and transportation, with a temperature range of -45 to 420°C. Its flow rate ranges from 6.25 to 500 m³/h, and the head can reach 60 to 300 m. The model parameters include suction inlet diameter, pump type, and head. The pump adopts structures such as single-stage single-suction cantilever and two-stage single-suction cantilever, with a radially split casing design, horizontal centerline support, and flange interface oriented vertically upward. The shaft seal supports interchangeable soft packing and mechanical seals. The bearing system consists of radial ball bearings and thrust ball bearings, utilizing thin oil lubrication and flexible couplings to optimize maintenance processes. The product is compatible with the mounting dimensions of Y-type oil pumps, featuring high standardization of components. It is equipped with three cooling methods—air, fan, and water cooling—to adapt to different operating conditions. The materials selected, such as cast steel/iron, enhance environmental adaptability. The outer surface of the bearing housing is cast with cooling fins, allowing for three cooling methods based on the temperature of the transported medium: air cooling (T℃), fan cooling (T=120℃-260℃), or water cooling (T=260℃-420℃). Among these, fan cooling is particularly suitable for areas with water shortages or poor water quality. To facilitate the easy removal of components such as impellers, bearings, and shaft seals without disassembling the suction or discharge pipelines during maintenance, the AY-type thermal oil pump incorporates flexible diaphragm or elastic pin-type extended coupling assemblies. The shaft seal chamber (stuffing box) can be cast integrally with the pump cover, allowing for the installation of various mechanical seals including packing seals, balanced types, bellows types, and tandem types. Additionally, the exterior of the shaft seal chamber features a water-cooled jacket that is available as an optional accessory The AY-type thermal oil pump is available in six structural configurations: single-stage single-suction cantilever, two-stage single-suction cantilever, single-stage double-suction cantilever, single-stage double-suction dual-bearing, two-stage double-suction dual-bearing, and two-stage single-suction dual-bearing. Within the API 610 standard framework, the single-stage double-suction end-bearing support type belongs to the BB2 pump category。