FY Series API VS4 vertical sump pump made by China manufacturer for petrochemical industries
FY Series API VS4 Petrochemical Vertical Sump Pump

Centrifugal Pump

FY Series API VS4 Petrochemical Vertical Sump Pump

The FY series is an API VS4 vertical sump pump designed for handling corrosive liquids in tanks, reactors, and sumps. Flow up to 400m³/h, head to 50m, temp -20°C to +105°C. Materials include carbon steel, 304, 316L, and fluoroplastic. No mechanical seal – eliminates leakage. Ideal for acids, alkalis, and chemical wastewater. ISO certified.
  • OEM
  • Factory Direct Supply
  • ISO9001 Certified
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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, 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 +105°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 - 400 m³/h
Head 5 - 50 m Power 1.5 - 22 kW
Speed 1450 / 2900 rpm Voltage 220 V / 380V V
Frequency 50 Hz Suction & Discharge Diameter 25 - 100 mm
Max. Working Pressure ≤ 1.6 MPa Pump Body Material Carbon Steel / 304 / 316L / Fluoroplastic
Seal Type Seal-less (No mechanical seal) Liquid Temperature Range -20 to +105 ℃
Installation Type Vertical Certification ISO9001 / ISO14001 / ISO45001

Custom models available upon request

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.

  • Chemical/Petrochemical Industry

    Ideal for transferring hydrochloric acid, sulfuric acid, nitric acid, sodium hydroxide from reactors, storage tanks, and acid/alkali pits.

  • 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.

  • Pulp, Paper & Printing

    Handles black liquor, white liquor, dye solutions, and wastewater containing fibers.

  • 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.

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.

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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

WeChat: +86-13952764345
Address Industrial Park
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.

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