Chemical Pump
FY Series API VS4 Petrochemical Vertical Sump Pump/ISO2858/ISO5199
The FY series is an API VS4 vertical sump pump designed for handling corrosive liquids in tanks, reactors, and sumps. Flow up to 2600m³/h, head to 80m, temp -20°C to +180°C. Materials include carbon steel, 304, 316L, 904, Lewmet Alloy, 20 Alloy and fluoroplastic. No mechanical seal – eliminates leakage. Ideal for acids, alkalis, and chemical wastewater. ISO certified.
- OEM
- Factory Direct Supply
- ISO9001 Certified
Overview
Product Overview
Product Description
FY Series API VS4 Vertical Sump Pump – Submerged Design, Zero Leakage
Submerged impeller eliminates need for shaft seal – no leakage, no seal maintenance. Long shaft spans allow installation in deep tanks up to several meters. Fluoroplastic lining option provides exceptional resistance to strong acids (HCl, H₂SO₄, HNO₃) and alkalis. Heavy-duty bearings support extended cantilever design. API VS4 compliant.
KEY FEATURES
- Seal-less Design: Submerged impeller eliminates shaft seals, providing zero leakage and eliminating seal maintenance costs.
- API VS4 Compliant: Designed to meet API 610 VS4 standards for vertical sump pumps in petrochemical service.
- Wide Material Selection: Available in carbon steel, 304, 316L, 904, Lewmet Alloy, 20 Alloy and fluoroplastic for compatibility with pH 2–12 corrosive media.
- Deep Tank Capability: Long shaft design allows installation in deep tanks, reaction vessels, and underground sumps.
- Broad Temperature Range: Operates with liquids from -20°C to +180°C, covering most chemical process requirements.
Specifications
Technical Parameters
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product Name | FY Series API VS4 Petrochemical Vertical Sump Pump | Model | FY |
| Category | Vertical Sump Pump (API VS4) | Flow Rate | 3.5 - 2600 m³/h |
| Head | 5 - 80 m | Power | 1.5 - 1000 kW |
| Speed | 1450 / 2900 rpm | Voltage | 380 V / 6000V /10000V V |
| Frequency | 50 Hz | Suction & Discharge Diameter | 25 - 500 mm |
| Max. Working Pressure | ≤ 2.5 MPa | Pump Body Material | Carbon Steel / 304 / 316L / 904 / Alloy 20 / Fluoroplastic |
| Seal Type | Seal-less (No mechanical seal) | Liquid Temperature Range | -20 to +180 ℃ |
| Installation Type | Vertical | Certification | ISO9001 / ISO14001 / ISO45001 /CE |
Manufacturing
Precision engineering, advanced facilities.
Certifications
Global certifications for reliable performance.
OEM/ODM
Tailor-made pumps for your specifications.
Packaging
Robust export packaging for safe delivery.
Use Cases
Applications
Reliable Corrosive Liquid Transfer for Chemical, Environmental & Industrial Applications The FY series API VS4 vertical sump pump is specifically engineered for submerged operation in tanks, sumps, and pits, handling aggressive and corrosive liquids without risk of leakage.
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Chemical/Petrochemical Industry
Ideal for transferring hydrochloric acid, sulfuric acid, nitric acid, sodium hydroxide from reactors, storage tanks, and acid/alkali pits.
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Environmental & Water Treatment
Perfect for electroplating wastewater, printing/dyeing effluent, neutralization tanks, and sewage lift stations.
-
Pharmaceutical & Food Industry
Suitable for fermentation broths, pharmaceutical liquids, sugar solutions, and beverages when configured with sanitary-grade stainless steel.
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Pulp, Paper & Printing
Handles black liquor, white liquor, dye solutions, and wastewater containing fibers.
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Metallurgy & Mining
Effective for acid pickling baths, electrolytic solutions, and light slurry applications with fine particulates.
-
General Industrial Use
Also suitable for salt production, sugar refining, battery manufacturing, tank-to-tank transfer, and underground sump extraction.
Product Models
Available Models
| Model | Flow Rate | Head | Power | Inlet/Outlet | Material | Action |
|---|---|---|---|---|---|---|
| 25FY-20 | 3.2-2.8 m3/h | 20-16 m | 1.1 kw / 2900rpm / 50hz | DN25 | SS304 / SS316 / 904 | Get Quote |
| 25FY-20 | 1.6-1.4 m3/h | 5-4 m | 0.75 kw / 1450rpm / 50hz | DN25 | SS304 / SS316 / 904 | Get Quote |
| 25FY-32 | 2.8-2.8 m3/h | 32-26 m | 3 kw / 2900rpm / 50hz | DN25 | SS304 / SS316 / 904 | Get Quote |
| 25FY-32 | 1.6-1.4 m3/h | 8-6.5 m | 1.1 kw / 1450rpm / 50hz | DN25 | SS304 / SS316 / 904 | Get Quote |
| 25FY-50 | 3.2-2.8 m3/h | 50-41 m | 5.5 kw / 2900rpm / 50hz | DN25 | SS304 / SS316 / 904 | Get Quote |
| 25FY-50 | 1.6-1.4 m3/h | 12.5-10 m | 1.1 kw / 1450rpm / 50hz | DN25 | SS304 / SS316 / 904 | Get Quote |
| 25FY-80 | 3.2-3-2.8 m3/h | 80-70-62 m | 7.5-5.5-4 kw / 2900rpm / 50hz | DN25 | SS304 / SS316 / 904 | Get Quote |
| 25FY-80 | 1.6-1.5-1.4 m3/h | 20-17-15 m | 1.1 kw / 1450rpm / 50hz | DN25 | SS304 / SS316 / 904 | Get Quote |
| 40FY-20 | 6.3-5.5 m3/h | 20-16 m | 1.5 kw / 2900rpm / 50hz | DN40 | SS304 / SS316 / 904 | Get Quote |
| 40FY-20 | 3.2-2.8 m3/h | 5-4 m | 0.75 kw / 1450rpm / 50hz | DN40 | SS304 / SS316 / 904 | Get Quote |
| 40FY-32 | 6.3-5.5 m3/h | 32-26 m | 3 kw / 2900rpm / 50hz | DN40 | SS304 / SS316 / 904 | Get Quote |
| 40FY-32 | 3.2-2.8 m3/h | 8-6.5 m | 1.1 kw / 1450rpm / 50hz | DN40 | SS304 / SS316 / 904 | Get Quote |
| 40FY-50 | 6.3-5.5 m3/h | 50-41 m | 5.5 kw / 2900rpm / 50hz | DN40 | SS304 / SS316 / 904 | Get Quote |
| 40FY-50 | 3.2-2.8 m3/h | 12.5-10 m | 1.1 kw / 1450rpm / 50hz | DN40 | SS304 / SS316 / 904 | Get Quote |
| 40FY-80 | 6.3-5.9-5.6 m3/h | 80-70-62 m | 7.5-5.5-5.5 kw / 2900rpm / 50hz | DN40 | SS304 / SS316 / 904 | Get Quote |
| 40FY-80 | 3.2-2.9-2.8 m3/h | 20-17-15 m | 1.5 kw / 1450rpm / 50hz | DN40 | SS304 / SS316 / 904 | Get Quote |
| 50FY-20 | 12.5-11.3 m3/h | 20-16.4 m | 1.5 kw / 2900rpm / 50hz | DN50 | SS304 / SS316 / 904 | Get Quote |
| 50FY-20 | 6.3-5.7 m3/h | 5-4.1 m | 0.75 kw / 1450rpm / 50hz | DN50 | SS304 / SS316 / 904 | Get Quote |
| 50FY-32 | 12.5-11.3 m3/h | 32-26.4 m | 3-2.2 kw / 2900rpm / 50hz | DN50 | SS304 / SS316 / 904 | Get Quote |
| 50FY-32 | 6.3-5.7 m3/h | 8-6.6 m | 0.75 kw / 1450rpm / 50hz | DN50 | SS304 / SS316 / 904 | Get Quote |
| 50FY-50 | 12.5-11.3 m3/h | 50-41 m | 5.5-4 kw / 2900rpm / 50hz | DN50 | SS304 / SS316 / 904 | Get Quote |
| 50FY-50 | 6.3-5.7 m3/h | 12.5-10.3 m | 1.1 kw / 1450rpm / 50hz | DN50 | SS304 / SS316 / 904 | Get Quote |
| 50FY-80 | 12.5-11.7-11 m3/h | 80-70-62 m | 11-11-7.5 kw / 2900rpm / 50hz | DN50 | SS304 / SS316 / 904 | Get Quote |
| 50FY-80 | 6.3-5.7 m3/h | 20-17.5 m | 1.5 kw / 1450rpm / 50hz | DN50 | SS304 / SS316 / 904 | Get Quote |
| 65FY-20 | 25-22.7 m3/h | 20-16.5 m | 3-2.2 kw / 2900rpm / 50hz | DN65 | SS304 / SS316 / 904 | Get Quote |
| 65FY-20 | 12.5-11.3 m3/h | 5-4.1 m | 0.75 kw / 1450rpm / 50hz | DN65 | SS304 / SS316 / 904 | Get Quote |
| 65FY-32 | 25-22.7 m3/h | 32-26.5 m | 5.5-4 kw / 2900rpm / 50hz | DN65 | SS304 / SS316 / 904 | Get Quote |
| 65FY-32 | 12.5-11.3 m3/h | 8-6.6 m | 0.75 kw / 1450rpm / 50hz | DN65 | SS304 / SS316 / 904 | Get Quote |
| 65FY-50 | 25-22.7 m3/h | 50-41 m | 11-7.5 kw / 2900rpm / 50hz | DN65 | SS304 / SS316 / 904 | Get Quote |
| 65FY-50 | 12.5-11.3 m3/h | 12.5-10.3 m | 1.1 kw / 1450rpm / 50hz | DN65 | SS304 / SS316 / 904 | Get Quote |
| 65FY-80 | 25-23.4-22 m3/h | 80-74.8-61.8 m | 15-15-11 kw / 2900rpm / 50hz | DN65 | SS304 / SS316 / 904 | Get Quote |
| 65FY-80 | 12.5-11.7 m3/h | 20-17.5 m | 2.2 kw / 1450rpm / 50hz | DN65 | SS304 / SS316 / 904 | Get Quote |
| 80FY-20 | 50-45.3 m3/h | 20-16.5 m | 5.5 kw / 2900rpm / 50hz | DN80 | SS304 / SS316 / 904 | Get Quote |
| 80FY-20 | 25-22.6 m3/h | 5-4.1 m | 0.75 kw / 1450rpm / 50hz | DN80 | SS304 / SS316 / 904 | Get Quote |
| 80FY-32 | 50-45.4 m3/h | 32-26.5 m | 7.5 kw / 2900rpm / 50hz | DN80 | SS304 / SS316 / 904 | Get Quote |
| 80FY-32 | 25-22.7 m3/h | 8-6.6 m | 1.5-1.1 kw / 1450rpm / 50hz | DN80 | SS304 / SS316 / 904 | Get Quote |
| 80FY-50 | 50-45.3 m3/h | 50-41 m | 15-11 kw / 2900rpm / 50hz | DN80 | SS304 / SS316 / 904 | Get Quote |
| 80FY-50 | 25-22.7 m3/h | 12.5-10.3 m | 2.2-1.5 kw / 1450rpm / 50hz | DN80 | SS304 / SS316 / 904 | Get Quote |
| 80FY-80 | 50-46.8-44 m3/h | 80-70.5-62.2 m | 22-18.5-15 kw / 2900rpm / 50hz | DN80 | SS304 / SS316 / 904 | Get Quote |
| 80FY-80 | 25-23.4 m3/h | 20-17.6 m | 3 kw / 1450rpm / 50hz | DN80 | SS304 / SS316 / 904 | Get Quote |
| 100FY-20 | 100-91.8 m3/h | 20-16.8 m | 11-7.5 kw / 2900rpm / 50hz | DN100 | SS304 / SS316 / 904 | Get Quote |
| 100FY-32 | 100-91 m3/h | 32-26.5 m | 15-11 kw / 2900rpm / 50hz | DN100 | SS304 / SS316 / 904 | Get Quote |
| 100FY-32 | 50-45.5 m3/h | 8-6.6 m | 2.2-1.5 kw / 1450rpm / 50hz | DN100 | SS304 / SS316 / 904 | Get Quote |
| 100FY-50 | 100-91 m3/h | 50-41.5 m | 22-18.5 kw / 2900rpm / 50hz | DN100 | SS304 / SS316 / 904 | Get Quote |
| 100FY-50 | 50-45.5 m3/h | 12.5-10.3 m | 4-3 kw / 1450rpm / 50hz | DN100 | SS304 / SS316 / 904 | Get Quote |
| 100FY-80 | 100-93.5-87.8 m3/h | 80-70-61.7 m | 45-37-30 kw / 2900rpm / 50hz | DN100 | SS304 / SS316 / 904 | Get Quote |
| 100FY-80 | 50-45.5-43 m3/h | 20-17.4-15 m | 4 kw / 1450rpm / 50hz | DN100 | SS304 / SS316 / 904 | Get Quote |
| 125FY-12.5 | 100-91 m3/h | 12.5-10.3 m | 5.5 kw / 2900rpm / 50hz | DN125 | SS304 / SS316 / 904 | Get Quote |
| 125FY-20 | 100-91 m3/h | 20-16.5 m | 11-7.5 kw / 1450rpm / 50hz | DN125 | SS304 / SS316 / 904 | Get Quote |
| 125FY-32 | 100-91 m3/h | 32-25.5 m | 18.5-15 kw / 1450rpm / 50hz | DN125 | SS304 / SS316 / 904 | Get Quote |
| 125FY-50 | 100-91 m3/h | 50-41 m | 30 kw / 1450rpm / 50hz | DN125 | SS304 / SS316 / 904 | Get Quote |
| 150FY-20 | 200-182 m3/h | 20-16.5 m | 18.5-15 kw / 1450rpm / 50hz | DN150 | SS304 / SS316 / 904 | Get Quote |
| 150FY-32 | 200-182 m3/h | 32-25.5 m | 30-22 kw / 1450rpm / 50hz | DN150 | SS304 / SS316 / 904 | Get Quote |
| 150FY-50 | 200-182 m3/h | 50-41 m | 55-37 kw / 1450rpm / 50hz | DN150 | SS304 / SS316 / 904 | Get Quote |
| 200FY-20 | 400-360 m3/h | 20-16.2 m | 37-30 kw / 1450rpm / 50hz | DN200 | SS304 / SS316 / 904 | Get Quote |
| 200FY-32 | 400-363 m3/h | 32-25.5 m | 55-45 kw / 1450rpm / 50hz | DN200 | SS304 / SS316 / 904 | Get Quote |
| 200FY-50 | 400-363 m3/h | 50-41 m | 90-75 kw / 1450rpm / 50hz | DN200 | SS304 / SS316 / 904 | Get Quote |
| 200FY-80 | 420-400-360-340 m3/h | 80-70-65-50 m | 110-110-110-75 kw / 1450rpm / 50hz | DN200 | SS304 / SS316 / 904 | Get Quote |
| 250FY-12 | 600-540-500 m3/h | 12-11-10 m | 30-22-22 kw / 1450rpm / 50hz | DN250 | SS304 / SS316 / 904 | Get Quote |
| 250FY-22 | 650-600-550 m3/h | 24-22-16 m | 55-55-37 kw / 1450rpm / 50hz | DN250 | SS304 / SS316 / 904 | Get Quote |
| 250FY-50 | 650-550-500-450 m3/h | 52-45-40-30 m | 132-90-75-55 kw / 1450rpm / 50hz | DN250 | SS304 / SS316 / 904 | Get Quote |
| 250FY-80 | 800-770-700-630 m3/h | 32-76-58-42 m | 250-250-160-110 kw / 1450rpm / 50hz | DN250 | SS304 / SS316 / 904 | Get Quote |
| 300FY-22 | 950-900-800 m3/h | 22-20-16 m | 75-75-55 kw / 1450rpm / 50hz | DN300 | SS304 / SS316 / 904 | Get Quote |
| 300FY-45 | 1000-900-850 m3/h | 44-38-30 m | 160-132-110 kw / 1450rpm / 50hz | DN300 | SS304 / SS316 / 904 | Get Quote |
| 350FY-40 | 1500-1400-1300-1300 m3/h | 40-30-25-20 m | 200-160-132-110 kw / 1450rpm / 50hz | DN350 | SS304 / SS316 / 904 | Get Quote |
| 400FY-80 | 1240-1170-1015-870 m3/h | 78-75-57-42 m | 355-315-250-160 kw / 1450rpm / 50hz | DN400 | SS304 / SS316 / 904 | Get Quote |
| 400FY-100 | 1340-1250-1140-950 m3/h | 104-97-77-56 m | 500-450-355-250 kw / 1450rpm / 50hz | DN400 | SS304 / SS316 / 904 | Get Quote |
| 400FY-125 | 1450-1375-1170-950 m3/h | 132-125-100-75 m | 710-630-500-315 kw / 1450rpm / 50hz | DN400 | SS304 / SS316 / 904 | Get Quote |
| 500FY-80 | 1070-1800-1520-1300- m3/h | 74-70-52-38 m | 560-500-315-220 kw / 1450rpm / 50hz | DN500 | SS304 / SS316 / 904 | Get Quote |
| 500FY-100 | 2040-1950-1760-1500 m3/h | 98-91-74-54 m | 800-630-500-315 kw / 1450rpm / 50hz | DN500 | SS304 / SS316 / 904 | Get Quote |
| 500FY-125 | 2390-2280-1900-1610 m3/h | 125-117-95-70 m | 1250-1000-710-450 kw / 1450rpm / 50hz | DN500 | SS304 / SS316 / 904 | Get Quote |
Support
Frequently Asked Questions
What does API VS4 mean, and why is it important?
API VS4 is a vertical sump pump standard defined by API 610 for petrochemical and refinery services. The FY series complies with this standard, ensuring robust construction, long shaft cantilever design, and reliable operation in demanding hazardous liquid applications.
How does the seal-less design work?
The FY pump has no mechanical seal or packing. The impeller is submerged directly in the pumped liquid, and the motor is mounted above the tank. Liquid is prevented from reaching the bearing housing by a dynamic seal or throttle bushing. This eliminates leakage risks entirely.
What materials are best for handling strong acids like sulfuric or hydrochloric acid?
For strong acids, we recommend fluoroplastic (e.g., PVDF, PTFE) lining or solid fluoroplastic construction. This material offers exceptional resistance to almost all acids, alkalis, and solvents at temperatures up to 105°C. For less aggressive chemicals, 316L stainless steel is a cost-effective option.
Can this pump handle liquids with small solid particles?
What is the maximum sump depth this pump can be installed in?
The maximum installation depth depends on the specific model and shaft length. Generally, our FY pumps can accommodate sump depths from 1 to 4 meters. Custom longer shafts are available upon request. Please specify your tank depth when ordering.
Have more questions? Our technical team is ready to help you select the right pump model.
Need Help Selecting the Right Pump?
Our engineering team will provide a professional selection recommendation within 24 hours based on your specific requirements.
Contact Information
Email
[email protected]
WeChat: +86-13952764345
Address
Industrial Park
Manufacturing District, China
Manufacturing District, China
What We Need
Flow Rate Required
Specify your required flow rate (m³/h)
Total Head Needed
Required pumping head (m)
Liquid Type
Type of liquid to be pumped
Solid Particle Size
Maximum solid size (mm)
Response Time
24-48h
Technical recommendations and quotations during business days
Our experienced engineers will analyze your application and provide detailed pump selection with complete technical specifications and pricing.