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Ghana DYP Self-balancing Multistage Centrifugal Oil Pump
Head Range: 50~2000m
Medium Temperature: 0 ℃ ~ 80 ℃
Allowable Inlet Pressure: 0.6MPa
Shaft Seal: packing seal, mechanical seal
Available Materials: HT200, HT250, QT600, ZG, 304, 316, 316L, 317L, 904L, CD4-MCu, etc
Category:
Product Description
Product Description
DYP type self-balancing multistage oil pump is designed to deliver oil and petroleum products free of solid particles, with medium temperature below 80℃ and viscosity less than 120 cSt.Available construction materials for DYP pump include HT200, QT600, 304, 304L, 316L, 317L, 904L and CD4,etc.
Overview
DYP Type Self-balancing Multistage Oil Pump is an advanced high-efficiency and energy-saving multistage centrifugal pump with long service life developed to meet customers’ requirements. It adopts internationally proven high-efficiency hydraulic models, abandons the conventional balancing structure of traditional multistage pumps and promotes the technical advancement of high-pressure multistage pumps. Designed and manufactured in accordance with API610 standard, the pump holds a leading technical position in the industry. It features wide high-efficiency operating range, broad performance envelope, excellent anti-cavitation property, safe and stable running, low noise, fewer wearing parts as well as convenient installation and maintenance.
Structure Description
The DYP self-balancing multistage oil pump features innovative structural upgrades by eliminating the conventional axial thrust balancing mechanism and balance disc assembly used on traditional multistage centrifugal pumps, serving as an upgraded replacement for D and DY series multistage centrifugal pumps.
Without a balancing device, the pump avoids disc friction loss of balance discs and backflow loss of balancing fluid. Its hydraulic efficiency is improved by 5%~14% compared with equivalent conventional multistage pumps. The elimination of balance disc friction reduces shaft power consumption and delivers notable energy savings, cutting operating power consumption by approximately 3% versus similar pump models.
Furthermore, the design completely eliminates common failures induced by failed balancing components, such as excessive wear of balance disc/balance ring and rotor seizure. Service life is significantly extended; its mean trouble-free operating time exceeds three times that of ordinary multistage pumps, lowering users’ maintenance expense and overall life-cycle cost of the equipment.
Application
It transports oil and petroleum products free of solid particles at temperatures below 80℃ and viscosity below 120 cSt, and is widely applied to high-pressure and long-distance fluid delivery conditions in chemical, cement, steel, mining, agriculture, municipal engineering and other industries.
Model Description
For example:
DY46 - 50 X 8P
DYP-horizontal self-balancing single-suction multi-stage centrifugal oil pump
46 - design flow rate is 46m ³/h
50 - Single-stage design head is 50m.
8 - number of pump stages is 8
Performance advantages
1. High Efficiency & Energy Saving: The self-balancing multistage pump adopts advanced independently developed high-efficiency energy-saving hydraulic models. Free from balance disc abrasion and axial pulsation on the rotor, the impellers remain perfectly concentric with diffusers at all times. Unlike conventional multistage pumps whose efficiency drops sharply as balance discs wear and rotor assemblies shift forward, this design eliminates balancing medium leakage to cut volumetric loss. Overall operational efficiency rises and shaft power consumption reduces, delivering an average efficiency improvement of 2%~3% over standard multistage pumps.
2. Innovative Structure: Impeller assemblies are arranged symmetrically. Axial thrust generated by opposing impellers counteracts mutually, automatically offsetting substantial internal axial force without conventional balance disc assemblies, realizing a breakthrough against traditional multistage pump structural design.
3. Advanced Technical Design: Equipped with exclusive throttling and pressure-reducing components plus odd-stage balancing structure which additionally functions as an auxiliary support.
4. Superior Operational Reliability: Symmetric impeller layout achieves nearly complete self-compensation of axial thrust. The high-risk balance disc assembly featuring narrow clearance, high pressure drop and susceptibility to erosion, abrasion and breakdown is omitted, minimizing component wear and system disturbance caused by axial load.
5. Excellent Anti-cavitation Performance & Extended Service Life: Optimized hydraulic and structural design, precision casting and high-quality wear-resistant materials are applied. Certain models adopt double-suction first-stage impellers for outstanding cavitation resistance, enabling stable low-noise operation and prolonged service life.
6. Enhanced Mechanical Seal Reliability: Zero axial endplay during pump startup/shutdown and no operational axial pulsation solves the long-standing poor sealing reliability issue commonly found on conventional multistage pumps.
7. Wide Application Range: Removal of narrow-clearance balance discs enables stable operation under harsher medium conditions compared with traditional multistage pumps.
8. Low Maintenance Cost: Precision casting reduces the quantity of wearing parts and disassembly frequency, extending equipment lifespan and avoiding faults from repeated overhaul, thus cutting overall maintenance expenditure.
9. Easy Maintenance: Designed via 3D modeling with CNC-machined rotors for strict dimensional accuracy and precise positioning. Ordinary technicians can complete assembly following assembly drawing instructions, eliminating the need for specialized professionals to adjust axial float as required for old-style multistage pumps and bringing great convenience to end users.
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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 |
