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Papua New Guinea FY Type Stainless Steel Corrosion-resistant Submersible Pump
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Product Description
Product Description
FY type stainless steel corrosion-resistant submersible pump is a newly developed model optimized on the basis of traditional corrosion-resistant submersible pumps, integrating advanced technologies of Sulzer (Switzerland). It eliminates the conventional mechanical seal adopted by most submersible pumps and is fitted with impellers of a unique structure. Featuring high efficiency, energy saving, zero leakage and long service life, this pump is widely used in petroleum, chemical, pharmaceutical, papermaking, metallurgy, wastewater treatment and other industries.
Overview
The FY series is a vertical long-shaft centrifugal pump. All wetted parts are made of cast steel or stainless steel. The submersible depth ranges from 0.5 m to 6 m as required by customers. The working section is fully immersed in liquid. This pump features wide application range and high efficiency, and requires no priming before operation.
The axial and radial forces generated during operation are borne respectively by the rolling bearings above the liquid level and sliding bearings under the liquid level, ensuring quiet operation. It is a high-tech product integrating environmental protection and energy saving.
Structure Description
The FY pump mainly consists of pump casing, pump cover, impeller, flexible coupling, pipe flange, guide bearing, intermediate pipe, upper and lower discharge pipes, bearing bracket and base plate. The suction port is arranged along the shaft axis, and the discharge port is parallel to the shaft axis. Viewed from the motor end, the pump rotates clockwise.
The vertical motor is fastened to the motor base with stud bolts and directly connected to the pump via a flexible coupling. The pump casing, intermediate pipe, bearing bracket, discharge pipe and pipe flange are bolted together as an integral unit and mounted on the base plate. The whole pump is installed on the liquid container through the base plate. Except for wetted components, major parts such as motor base, bearing bracket and base plate are made of cast iron.
All axial and radial forces (including hydraulic pressure on the pump cover, weight of impeller and rotor assembly, etc.) are supported by single-row thrust roller bearings, double-row radial ball bearings inside the bearing housing and sliding guide bearings. For reliable operation, the two rolling bearings are lubricated with grease. The guide bearings are lubricated by the conveyed medium. If the medium contains a normal amount of fine particles, the guide bearings shall be lubricated with externally supplied clean liquid.
J-type oil seals are installed to seal the gap between the shaft and baffle plate, preventing leakage of corrosive gas. According to the viscosity of conveyed media, closed or semi-open impellers are available, among which closed impellers are commonly used.
Based on different submersible lengths, the pump is divided into two types: with intermediate guide bearings and without guide bearings.
1. As a vertical submersible pump, it has a compact and neat appearance. It is directly mounted on the liquid storage tank without occupying extra floor space, thus reducing infrastructure costs.
2. The design without mechanical seals avoids frequent maintenance caused by seal wear on ordinary submersible pumps, cutting operating costs and improving working efficiency.
3. The specially designed centrifugal double-balanced closed impeller is applied for clean liquid free of solid particles, delivering ultra-low vibration and noise as well as high efficiency. The open double-balanced impeller is suitable for liquids containing solid particles and short fibers, featuring stable operation and anti-clogging performance.
Model Description
Example: 50FYB-25AK
50 -- Pump suction diameter: 50 mm
FY -- Submersible Pump
B -- Material: 1Cr18Ni9Ti stainless steel
25 -- Rated head: 25 m
A -- Impeller with first diameter trimming
K -- Open-type impeller
Operating Conditions
1. Temperature of conveyed medium: -20℃ ~ 140℃
2. For cast iron pumps: pH value of medium shall be kept between 5 and 9
3. For pumps with open impellers: The diameter of solid particles in liquid shall not exceed 30% of the pump suction port diameter
Structure Features
1. As a vertical submerged pump, it has an attractive appearance and can be directly installed on liquid storage tanks with no extra floor space required, which lowers infrastructure investment.
2. Mechanical seal is eliminated, resolving the problem of frequent maintenance due to seal wear on conventional submerged pumps. It reduces operating costs and improves working efficiency.
3. The unique centrifugal double-balanced impeller is adopted. The closed type is for clean media without solid particles, featuring low vibration, low noise and high efficiency. The open type is for contaminated media with solid particles and short fibers, ensuring stable operation and anti-blocking performance.
Hunan Sanchang Pump Co., Ltd.
| Email: | info@sanchangpump.net |
| Hotline: | +86 181 4266 2779 |
| +86 193 1300 1794 | |
| Mobile/Wechat/WhatsApp: | +86 181 4266 2779 |
| Address: | No.517,Xiangfu Road, Yuhua |
| District, Changsha City | |
| Hunan Province, P.R.C |
