Product Overview
IH Horizontal Chemical Pump is a single-stage, end-suction stainless steel centrifugal pump designed in accordance with ISO dimensional standards for corrosive and clean chemical liquid transfer.
It addresses corrosion resistance, dimensional interchangeability, and stable hydraulic performance requirements in chemical process systems.
It is suitable for chemical processing lines, acid and alkali transfer, solvent handling, and industrial liquid circulation installations.
Model Designation
Applications
Typical Operating Scenarios
- Acid and alkali solution transfer in chemical production lines
- Organic solvent circulation systems
- Pharmaceutical intermediate liquid transfer
- Petrochemical process liquid handling
- Industrial clean water and mildly corrosive media circulation
Engineering Advantages
Structural Design Logic + Engineering Result
Stainless steel wetted components provide corrosion resistance for a wide range of chemical media.
ISO2858 / ISO5199 dimensional conformity ensures installation interchangeability.
Back pull-out structure allows maintenance without disturbing pipeline alignment.
Closed impeller hydraulic design ensures stable head and efficiency performance.
Mechanical seal system supports various sealing configurations for chemical duty.
System Components
IH Horizontal Chemical Pump mainly consists of:
- Pump casing (stainless steel)
- Closed impeller
- Pump shaft
- Shaft sleeve
- Mechanical seal assembly
- Bearing housing
- Rolling bearings
- Coupling
- Base plate
Technical Data
Service Conditions
- Corrosive and clean chemical liquids compatible with stainless steel
- Low solid content, non-abrasive medium
- Continuous industrial operation
Operating Conditions
- Flow Rate: 6.3 – 400 m³/h
- Head: 5 – 125 m
- Power Range: 0.55 – 90 kW
- Speed: 1450 / 2900 rpm
- Liquid Temperature: ≤ 105°C
- Working Pressure: ≤ 1.6 MPa
Detailed parameter tables are provided below.
Installation & Dimensions
Outline Drawing

Performance Data
| No. | Name | No. | Name |
| 1 | Pump Body | 6 | Intermediate Bracket |
| 2 | Impeller | 7 | Shaft |
| 3 | Seal Ring | 8 | Support Assembly |
| 4 | Impeller Nut | 9 | Seal Assembly |
| 5 | Pump Cover |
Performance Parameters
| Model | Flow Rate (m³/h) | Head (m) | Speed (rpm) | Motor Power (kW) | |
| m3/h | L/s | m | r/min | kW | |
| IH50-32-125 | 12.5 | 3.47 | 20 | 2900 | 2.2 |
| IH50-32-160 | 12.5 | 3.47 | 32 | 2900 | 3 |
| IH50-32-200 | 12.5 | 3.47 | 50 | 2900 | 5.5 |
| IH50-32-250 | 12.5 | 3.47 | 80 | 2900 | 11 |
| IH65-50-125 | 25 | 6.94 | 20 | 2900 | 3 |
| IH65-50-160 | 25 | 6.94 | 32 | 2900 | 5.5 |
| IH65-40-200 | 25 | 6.94 | 50 | 2900 | 7.5 |
| IH65-40-250 | 25 | 6.94 | 80 | 2900 | 15 |
| IH65-40-315 | 25 | 6.94 | 125 | 2900 | 30 |
| IH80-65-125 | 50 | 13.9 | 20 | 2900 | 5.5 |
| IH80-65-160 | 50 | 13.9 | 32 | 2900 | 7.5 |
| IH80-50-200 | 50 | 13.9 | 50 | 2900 | 15 |
| IH80-50-250 | 50 | 13.9 | 80 | 2900 | 22 |
| IH80-50-315 | 50 | 13.9 | 125 | 2900 | 37 |
| IH100-80-125 | 100 | 27.8 | 20 | 2900 | 11 |
| IH100-80-160 | 100 | 27.8 | 32 | 2900 | 15 |
| IH100-65-200 | 100 | 27.8 | 50 | 2900 | 22 |
| IH100-65-250 | 100 | 27.8 | 80 | 2900 | 37 |
| IH100-65-315 | 100 | 27.8 | 125 | 2900 | 75 |
| IH125-100-200 | 200 | 55.5 | 50 | 2900 | 45 |
| IH125-100-250 | 200 | 55.6 | 80 | 2900 | 75 |
| IH125-100-315 | 200 | 55.6 | 125 | 2900 | 90 |
| Model | Flow Rate (m³/h) | Head (m) | Speed (rpm) | Motor Power (kW) | |
| m3/h | L/s | m | r/min | kW | |
| IH50-32-125 | 6.3 | 1.74 | 5 | 1450 | 0.55 |
| IH50-32-160 | 6.3 | 1.74 | 8 | 1450 | 0.55 |
| IH50-32-200 | 6.3 | 1.74 | 12.5 | 1450 | 0.75 |
| IH50-32-250 | 6.3 | 1.74 | 20 | 1450 | 1.5 |
| IH65-50-125 | 12.5 | 3.74 | 5 | 1450 | 0.55 |
| IH65-50-160 | 12.5 | 3.47 | 8 | 1450 | 0.75 |
| IH65-40-200 | 12.5 | 3.74 | 12.5 | 1450 | 1.1 |
| IH65-40-250 | 12.5 | 3.74 | 20 | 1450 | 2.2 |
| IH65-40-315 | 12.5 | 3.74 | 32 | 1450 | 4 |
| IH80-65-125 | 25 | 6.94 | 5 | 1450 | 0.75 |
| IH80-65-160 | 25 | 6.94 | 8 | 1450 | 1.5 |
| IH80-50-200 | 25 | 6.94 | 12.5 | 1450 | 2.2 |
| IH80-50-250 | 25 | 6.94 | 20 | 1450 | 3 |
| IH80-50-315 | 25 | 6.94 | 32 | 1450 | 5.5 |
| IH100-80-125 | 50 | 13.9 | 5 | 1450 | 1.5 |
| IH100-80-160 | 50 | 13.9 | 8.0 | 1450 | 2.2 |
| IH100-65-200 | 50 | 13.9 | 12.5 | 1450 | 4 |
| IH100-65-250 | 50 | 13.9 | 20 | 1450 | 5.5 |
| IH100-65-315 | 50 | 13.9 | 32 | 1450 | 11 |
| IH125-100-200 | 100 | 27.8 | 12.5 | 1450 | 7.5 |
| IH125-100-250 | 100 | 27.8 | 20 | 1450 | 11 |
| IH125-100-315 | 100 | 27.8 | 32 | 1450 | 15 |
| IH125-100-400 | 100 | 27.8 | 50 | 1450 | 30 |
| IH150-125-250 | 200 | 55.6 | 20 | 1450 | 18.5 |
| IH150-125-315 | 200 | 55.6 | 32 | 1450 | 30 |
| IH150-125-400 | 200 | 55.6 | 50 | 1450 | 40 |
| IH200-150-250 | 400 | 111.1 | 20 | 1450 | 37 |
| IH200-150-315 | 400 | 111.1 | 32 | 1450 | 55 |
| IH200-150-400 | 400 | 111.1 | 50 | 1450 | 90 |
How to Select a Pump Model
Determine required flow rate and total dynamic head under process design conditions.
Verify chemical compatibility with stainless steel grade (e.g., 304 / 316).
Select appropriate mechanical seal configuration based on medium volatility and toxicity.
Confirm system working pressure does not exceed 1.6 MPa rating.
Match ISO flange dimensions with existing pipeline system.
Engineering Notes
Pump must be properly aligned to avoid coupling vibration.
Not suitable for high-abrasive slurry applications.
Mechanical seal cooling or flushing may be required for certain chemicals.
Cavitation margin should be evaluated based on NPSH conditions.
Compliance & Quality Assurance
Hydraulic performance testing according to ISO 9906.
Dimensional conformity to ISO2858 / ISO5199 standards.
Material certificate traceability for stainless steel components.
Rotor dynamic balancing verification.
Optional third-party inspection available.
Safety Notice
Do not operate under dry-running condition.
Ensure proper mechanical seal lubrication before startup.
Do not exceed rated pressure and temperature limits.
Disconnect power before maintenance.
OEM & Customization
This pump series supports engineered configuration and duty-based matching. Technical adjustments can be made according to system requirements and installation conditions.
Available options include:
• Stainless steel material grade (304 / 316 / 316L)
• Mechanical seal type and flushing plan
• Motor voltage & frequency
• Bearing brand selection
• Explosion-proof motor configuration
Configuration is determined based on duty point and project specifications.
Based on duty point and project specifications.
FAQs
Q1: What standards does IH pump comply with?
It conforms to ISO2858 and ISO5199 dimensional standards.
Q2: Can the pump operate under VFD control?
Yes, within rated speed limits and proper cooling conditions.
Q3: What is the allowable working pressure?
Maximum working pressure is 1.6 MPa.
Q4: What stainless steel grades are available?
Commonly 304, 316, and 316L depending on chemical compatibility.
Q5: Can the pump handle solvents?
Yes, provided chemical compatibility and seal configuration are verified.
Q6: Is back pull-out structure available?
Yes, enabling maintenance without pipeline removal.
Q7: What is the maximum allowable liquid temperature?
≤ 105°C.
