Product Introduction
Marine Pump Shaft is a rotating shaft component inside a marine pump that connects the drive unit and the impeller. It is used to transmit power and drive the impeller to rotate, thereby achieving the fluid transportation function.
Product Details
|
Name |
Pump shaft |
|
Category |
Marine pump |
|
Brand |
Naniwa/ taiko/ shinko/ heishin/ imo/ allweiler/ desmi/ tianjin pump/ zhenhua pump |
|
Specification |
All specifications are available |
|
Material |
Stainless steel/bronze |
|
Place of original |
High quality equivalent part |
|
Packing |
Standard packing |
|
Condition |
Brand new |
|
Terms of delivery |
Exw |
|
Price |
To be negotiated |
|
Ports |
China ports and other ports in the world |
Main Offered Models
NANIWA
* FEV,FEWV,FFV,FGV,BHR,ALG,FBW,FBWV,BT,BH,BHD
TAIKO
* EMC,EMD,TMC,VS,HHB,HHC,NHG,HNP,ESC,ESD,TMS
SHINKO
* SVA,SVB,SVS,RVR,RVX,VJ,HJ,SVQ,SHQ
HEISHIN
* RV,RVD,RDY,VSK,VDK,VK,HK,PVN
IMO
* ACE025,032,038
DESMI
* NSL SERIES
ALLWEILER
* MA,NB,WB
GRUNDFOS
* CR,CRI,CRN
CHINESE PUMP
* TIANJIN PUMP/ZHENHUA PUMP
Main Supplied Range
Impeller, shaft, mechanical seal, sleeve, bush, seal cover, o-ring, casing ring, casing cover, impeller key, impeller nut, bearing metal, dust stopper, retaining ring, gland packing.
Advantages
Corrosion resistance
Marine Pump Shaft is made of 316 stainless steel or aluminum bronze. 316 stainless steel contains 2.0% to 2.5% molybdenum, which can resist chloride ion corrosion in seawater, especially in seawater environment with salinity of about 3.5%. Aluminum bronze has natural resistance to electrochemical corrosion and can maintain surface integrity under flow rate of less than 4.5m/s.
Excellent strength and rigidity
The tensile strength of stainless steel pump shaft can reach 515MPa, and aluminum bronze can achieve a strength of more than about 480MPa in the heat-treated state. For centrifugal pumps above 3600 rpm, the stiffness and coaxiality of the shaft are controlled within ±0.01mm to prevent vibration and abnormal wear caused by bending or uneven load.
Precision machined structure
The surface of Marine Pump Shaft is turned and polished, and the journal roughness is controlled within the range of Ra 0.4–0.8 μm to reduce the wear of the mechanical seal end face. Combined with the end chamfer, shoulder transition radius design and standardized keyway structure, the assembly efficiency with bearings and couplings can be improved, and the deformation and installation error of seals can be reduced.
Delivery And Shipping Service
24*7 hours online, our services cover all main ports in the world, we can provide the cost and time saving logistics solution to our customers, to provide you with one stop comprehensive services.
FAQ
Q: Does Marine Pump Shaft need heat treatment?
A: Yes, according to the application scenario, it is usually subjected to tempering heat treatment to improve hardness and fatigue strength. Key parts can also be customized with surface quenching to improve wear resistance and service life.
Q: Does it support non-standard customization and coupling matching?
A: Yes, the length, keyway, step or threaded end can be customized according to the customer's drawings. The key can be pre-installed and the coupling connection parts can be processed to ensure the complete docking of the power system.
Q: What should be paid attention to when repairing or replacing Marine Pump Shaft?
A: It is necessary to confirm the specifications and installation fit of the shaft, select the appropriate disassembly tools, avoid damage to the pump body and seal, and it is recommended to be operated by professionals and re-balanced.
Q: What common faults are prone to Marine Pump Shaft?
A: Common problems include shaft bending, surface wear and corrosion, seal failure and keyway wear, which are usually caused by improper installation, improper material selection or insufficient maintenance.
Q: What precautions should be taken when installing Marine Pump Shaft?
A: During installation, the axis should be kept concentric to avoid knocking damage, the sealing parts should be lubricated, and the coupling clearance and bearing preload should be correctly adjusted according to the instructions.