Chemical Pumps
Corrosion-Resistant High Pressure Pump Series
WS Series Duplex 2205 Stainless Steel Corrosion-Resistant High-Pressure Plunger Pumps
The WULI WS Series delivers uncompromising performance for aggressive chemical metering, high-salinity fluid handling, industrial wastewater processing, and harsh environment washing. Engineered specifically where standard metals fail, the fluid end utilizes premium Duplex 2205 stainless steel for the critical high-pressure manifold (optional SUS316 available). This delivers extreme resistance against chloride stress corrosion cracking, pitting, and erosion-corrosion. Whether you need massive flow volumes for liquid transfer or extreme pressure for industrial jetting, the WS Series ensures maximum uptime and dramatically lower total cost of ownership.
- Duplex 2205 Stainless Steel Manifold: Premium alloy construction engineered specifically at the wetted high-pressure fluid end to vastly outperform standard 304/316 stainless steels.
- Anti-Pitting & Leak-Free Design: Superior mechanical yield strength prevents stress cracking and protects your system against hazardous fluid leaks.
- Continuous 24/7 Industrial Duty: Heavy-duty plunger drive and precision V-packing seals built for uninterrupted operation in high-demand facilities.
- Versatile Flow & Pressure Ranges: Complete specification coverage from low-pressure/high-volume transfer up to 200 Bar high-pressure washdown.
- Flexible Metallurgy Options: Available with SUS316 stainless steel manifolds for applications requiring balanced performance and capital budget efficiency.
Why Duplex 2205 Stainless Steel Manifolds Outperform Standard Alloys
When pumping corrosive process fluids, standard 304 and 316 stainless steels are vulnerable to pitting corrosion and mechanical fatigue. WULI WS Series pumps reinforce the critical wetted manifold with Duplex 2205 alloy to provide robust structural protection and longer service life:
| Manifold Metallurgy | Chloride & Pitting Resistance | Mechanical & Yield Strength | Recommended Application |
|---|---|---|---|
| SUS316 Stainless Steel | Standard Corrosion Resistance (Ideal for general water) |
Standard Tensile Strength (Meets daily pressure demands) |
General industrial water, light cleaning equipment, and low-salinity fluids. |
| Duplex 2205 Stainless Steel | Exceptional (High PREN Rating) (Resists stress corrosion cracking) |
~2x Strength of 316 Steel (High yield point under fatigue) |
High-salinity brine, aggressive chemical transfer, wastewater, & harsh industrial fluids. |
WS Series Pump Selection & Engineering Guide
Select the ideal WS pump model based on your facility's Target Operating Pressure and required Flow Rate (L/min & GPM):
Step 1: Determine Required Working Pressure
- High-Pressure Jetting & Surface Prep Applications: Select 200 Bar (2900 PSI) models (WS-2024F1 / WS-2030F1) for aggressive deposit removal and tank washing.
- Low-Pressure / High-Volume Transfer Applications: Select 50–70 Bar (725–1015 PSI) models (WS-1770 / WS-12140 / WS-12170) for bulk liquid recirculation and cooling loops.
Step 2: Match Required Flow Rate & Application
- Precision Dosing & High-Pressure Wash (24–30 L/min): Optimal for chemical metering skids and localized industrial surface cleaning systems.
- Bulk Liquid & Process Transfer (70–170 L/min): Engineered for municipal/industrial wastewater plants, bulk chemical transfer, and large cooling towers.
| Model | Max Pressure | Max Flow Rate | Manifold Alloy | Recommended Application |
|---|---|---|---|---|
| WS-2024F1 | 140 Bar (2000 PSI) |
24.7 L/min (6.5 GPM) |
2205 / SUS316 | Industrial high-pressure washing, chemical tank surface prep. |
| WS-2030F1 | 140 Bar (2000 PSI) |
29.6 L/min (7.9 GPM) |
2205 / SUS316 | High-pressure chemical spraying, process liquid filtration. |
| WS-1770 | 120 Bar (1700 PSI) |
73.3 L/min (19.5 GPM) |
2205 / SUS316 | Chemical recirculation, medium-scale industrial wastewater treatment. |
| WS-12140 | 85 Bar (1200 PSI) |
150 L/min (39.4 GPM) |
2205 / SUS316 | High-volume water transfer, municipal effluent & effluent processing. |
| WS-12170 | 85 Bar (1200 PSI) |
178 L/min (46.8 GPM) |
2205 / SUS316 | Flagship high-flow transfer, heavy-duty bulk process fluid movement. |
Frequently Asked Questions (FAQ)
Q1: Why is Duplex 2205 recommended over standard SUS316 for corrosive environments?
Duplex 2205 features significantly higher chromium and molybdenum content compared to SUS316. This chemical composition provides exceptional resistance to chloride-induced pitting, crevice corrosion, and stress cracking, dramatically extending service life in harsh chemical applications.
Q2: Is the entire WS Series pump manufactured from Duplex 2205 stainless steel?
No. WULI utilizes precision engineering to apply Duplex 2205 (or SUS316) specifically to the high-pressure wetted manifold where fluids directly pass through under stress. This targets critical corrosion points while offering optimal cost efficiency.
Q3: What industrial applications are best suited for the WS Series?
The WS Series is extensively used in industrial wastewater treatment, landfill leachate transfer, high-salinity brine circulation, chemical processing skids, high-pressure equipment washdown, and aggressive fluid handling systems.
Q4: How do I choose between a SUS316 and a Duplex 2205 manifold option?
For general industrial water or mild chemical solutions, the SUS316 manifold provides excellent reliability and cost savings. For fluids high in chloride concentrations, acidic media, or 24/7 high-fatigue industrial cycles, the Duplex 2205 manifold is highly recommended for maximum operational longevity.
