WQDX-S Precision Cast Stainless Steel High Head Sewage Submersible Pump Threaded Outlet
WQDX-S Precision Cast Stainless Steel High Head Sewage Submersible Pump Threaded Outlet from Shanghai Gaotian is built for wastewater transfer drainage and solids handling in municipal and industrial sites. The pump selection focuses on stable flow reliable sealing practical installation and service support for export projects. It is suitable for sewage lifting drainage dewatering flood control and wastewater treatment where buyers need consistent performance clear model matching and dependable after sales communication from a pump manufacturer.
WQDX-S Precision Cast Stainless Steel High Head Sewage Submersible Pump Threaded Outlet Applications and Related Pump Solutions
Core Technological Superiority
1. Ultra-Durable Stainless Steel Construction
Material Integrity: 304/316L stainless steel body (model-specific) provides exceptional corrosion resistance against H₂S, chlorides, and acidic effluents.
Investment Casting Process: Precision-machined surfaces (Ra ≤ 3.2μm) ensure perfect sealing geometry and hydraulic efficiency.
2. Powerplant Excellence: 100% Pure Copper Motor System
Oxygen-Free Copper Windings: Enamel-coated pure copper conductors minimize I²R losses, achieving 92% motor efficiency (IE3 standard).
Thermal Defense System: Embedded Klixon thermal protectors trigger instant shutdown at 130°C ±5°C, preventing burnout during dry-run or jam events.
Magnetic Core Optimization: Cold-rolled silicon steel laminations (0.35mm thickness) reduce eddy currents by 40% versus conventional designs.
3. Tribological Mastery: Bearing & Sealing Ecosystem
SKF-Grade Bearings: Angular contact bearings pre-lubricated with Mobil SHC 634 synthetic grease sustain 20,000+ hours at 3600 RPM.
Triple-Seal Containment:
Primary seal: Silicon carbide/tungsten carbide mechanical face seal
Secondary: HNBR lip seal with anti-clogging springs
Tertiary: Labyrinth particle exclusion system
Aging Resistance: Fluorocarbon elastomers maintain elasticity across -30°C to 180°C operating range.
Performance Engineering: Beyond Specifications
Hydrodynamic Profile
Impeller Dynamics: Vortex-type open impeller (S.G. iron/duplex SS) handles 65mm spherical solids without clogging.
Hydraulic Balance: Back-vane pressure compensation eliminates axial thrust, reducing bearing load by 70%.
Operational Intelligence
Auto-Clean Function: Reverse rotation capability clears fibrous entanglements (patent pending).
VFD Readiness: All models compatible with variable frequency drives for flow modulation ±20% of BEP.
Technical Specifications: Engineered Precision
| Model | Flow (m³/h) | Head (m) | Power (kW) | Voltage | Solids Passage (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| WQ(D)X6-25-1.1S | 6 | 25 | 1.1 | 220V ∆ | 35 | 25 |
| WQX10-44-3S | 10 | 44 | 3.0 | 380V Y | 50 | 39 |
| WQX15-55-5.5S | 15 | 55 | 5.5 | 380V Y | 65 | 62 |
| WQX12-72-7.5S | 12 | 72 | 7.5 | 380V Y | 65 | 91 |
Performance curves confirm stable operation at 110% of BEP without cavitation risk.
Application-Specific Advantages
Municipal: Continuous operation in lift stations with 7% solids concentration
Industrial: Chemical-resistant variants for pH 2-14 environments
Mining: Capable of handling slurries with SG ≤ 1.3
Flood Control: Dry-pit capable models available (IP68 rating)
Lifecycle Value Proposition
MTBF: 32,000 hours (ISO 1940 balance grade G2.5)
Maintenance Interval: 2-year oil replenishment cycle
Sustainability: 98% recyclable materials, RoHS compliant
Related pump products: IHG304 Stainless Steel Centrifugal Pump, High Pressure Agricultural Irrigation Pump, Stainless Steel Horizontal Multistage Pump.
