Sulfuric Acid Pump & API 610 Process Pump Manufacturer | 30+ Countries Served
Industrial Pump Experts for Coal Chemical, Nonferrous, Petrochemical & Sulfur–Phosphorus Industries
For over 25 years, ChemPumps has engineered special-purpose pumps for the world’s most demanding chemical environments. From concentrated sulfuric acid and oleum to molten sulfur and phosphoric acid, our API 610-compliant, corrosion-resistant pumps keep critical processes running safely and efficiently. Trusted by plant engineers and procurement teams in 30+ countries.
About Us
Founded in 1998 in China’s Pilot Free Trade Zone, we are a nationally recognized “Little Giant” enterprise and certified High-Tech company with nearly 30 years of expertise in special-purpose industrial pump technology.
We serve four core industries:
Petrochemical · Non-Ferrous Metallurgy · Sulfur-Phosphorus Chemical · Coal Chemical
Our product range covers three segments:
• Custom intelligent pumps, engineered for high-temperature, high-pressure, corrosive, and abrasive conditions
• Energy-saving pump systems, optimized for long-term operational efficiency
• Intelligent O&M services, full-lifecycle support from installation to predictive maintenance
Our advanced alloy pumps are proven in the most demanding acid environments, handling 92–100% H₂SO₄, ≥105% oleum, molten sulfur, and phosphoric acid. Our sulfuric acid pumps are fully compatible, drop-in replacements for Lewis pumps.
Trusted by clients in 30+ countries across Asia, Africa, Europe, and the Americas.
Intelligent Management System for Sulfuric Acid Metering Pumps
Built on IoT, big data, and AI, our intelligent management platform delivers full-lifecycle monitoring for critical rotating equipment, including sulfuric acid metering pumps, centrifugal pumps, and corrosion-resistant process pumps.
What the system does:
• Real-time sensing, continuous monitoring of vibration, temperature, pressure, and flow across all connected equipment
• Predictive fault detection, AI-driven diagnosis using physical, mathematical, and empirical failure models, continuously refined through operational data
• Energy efficiency evaluation, identifies inefficiencies and recommends optimization to reduce operating costs
• Centralized cloud platform, plant-wide visibility from a single dashboard, with remote access and automated alerts
The result: fewer unplanned shutdowns, extended equipment service life, and safer operation of high-risk processes involving concentrated acids, oleum, and molten sulfur.
Designed for petrochemical, sulfur-phosphorus chemical, and non-ferrous metallurgy plants, where equipment failure is not an option.
Pump Material Advantages
| Serial No. | Material Designation | Hardness | Feature | Application Scope |
| B-1 | Nickel-added alloy ductile iron | HB 300~380 | High-strength, corrosion-resistant nickel-added alloy ductile iron. Corrosion resistance superior to JSB-2. | Used to produce JHB series pump shaft. |
| B-2 | Alloy ductile iron | HB 250~350 | Corrosion-resistant alloy ductile iron, corrosion rate 0.05–0.2 mm/a in 93–98% sulfuric acid at 110°C. | Used to produce JHB series pump casing, cover, elbow pipe, connecting pipe and outlet pipe. |
| B-11 | Lewmet1# (Lewmet® ) | HRC 42~52 | High-alloyed special corrosion-resistant NiCr alloy for high-temperature dilute sulfuric acid, concentrated sulfuric acid, oleum, phosphoric acid. | Used to produce JHB450-30 pump shaft sleeve, bushing, JHB1300-28 seal ring. |
| B-12 | Lewmet2# (904) (Lewmet® ) | HRC 35~42 | High-alloyed special corrosion-resistant NiCr alloy, corrosion resistance close to JSB-11. Hardness 35–42 after aging. | Used to produce shaft sleeve, bushing for JHB450-30, seal ring below JHB1300-28 and above JHB600-30. |
| B-13 | Lewmet3# (Lewmet® ) | HRC 20~26 | High-alloyed special corrosion-resistant NiCr alloy. Corrosion rate 0.025 mm/a at 104°C; less than 0.1 mm/a at 120°C. | Used to produce pump impeller, impeller nut; seal ring below JHB600-35; or custom pump materials. |
Certifications & Standards
Our pumps meet the world’s most rigorous industrial standards, holding CE (EU) certification and API Spec Q1, the international petroleum industry quality certification. These accreditations confirm our products satisfy compliance, safety, and reliability requirements across global markets.
Global service coverage areas
With operations spanning 30+ countries across Asia, Africa, Europe, and the Americas, we deliver customized pump solutions for petrochemical, energy, and industrial clients worldwide. Every order is backed by localized technical support and end-to-end quality assurance, from factory to field.
