Product Overview
The IH Horizontal Stainless Steel Single-Stage Single-Suction Chemical Pump is a single-stage, single-suction horizontal centrifugal pump designed for industrial and municipal water supply/drainage, as well as agricultural irrigation services.
This series is suitable for transferring clean water or liquids with physical and chemical properties similar to water. The maximum allowable medium temperature is 80°C, meeting typical requirements for general chemical and utility services.
Model Designation
Key Features
-
Single-stage, single-suction horizontal centrifugal design for stable operation.
-
Broad duty coverage through combinations of speed and nozzle size to match various flow/head requirements.
-
Suitable for clean liquids and services allowing limited solids content.
-
Proven structure for convenient installation, inspection, and routine maintenance.
Engineering Summary
The IH series adopts a stable single-stage centrifugal pump design, delivering reliable flow and head performance at the rated duty point.
By selecting different rotational speeds and nozzle sizes, the pump covers medium-flow and medium-head services and is suitable for continuous liquid transfer in engineered piping systems.
Typical Applications
The IH Horizontal Stainless Steel Single-Stage Chemical Pump is widely used in:
-
Municipal environmental protection and building water systems
-
Firefighting water supply systems
-
Chemical processing, dye, and printing & dyeing industries
-
Electroplating and power plant auxiliary systems
-
Paper, petroleum, and mining services
-
Equipment cooling systems and tank truck unloading duties
Applicable media include clean water, seawater, acidic or alkaline chemical liquids, and general slurry services with viscosity ≤100 cP and solids content up to 30%.
System Configuration
The pump features a horizontal layout compatible with standard piping installation practices. With a simple and proven structure, it is suitable for industrial and municipal projects under conventional installation and operating conditions.
Components & Supply
The IH Horizontal Stainless Steel Single-Stage Chemical Pump mainly consists of:
-
Casing and impeller assembly
-
Pump shaft and bearing support structure
-
Suction and discharge connections (inlet/outlet)
-
Driving motor (configured per operating requirements)
Technical Service
Operating Conditions
-
Rotational speed: 1450 r/min or 2900 r/min
-
Inlet diameter: 50–200 mm
-
Flow range: 6.3–400 m³/h
-
Head range: 5–125 m
-
Medium temperature: ≤80°C
Service Conditions
Applicable to continuous transfer duties in industrial and municipal water supply/drainage and agricultural irrigation systems. The medium is clean water or liquids with properties similar to water, meeting typical requirements for general chemical and utility services.
Protection Functions
-
Stainless steel construction supports a wide range of water-based and chemical media services.
-
Clearly defined operating limits (e.g., maximum medium temperature) support stable service selection and operation.
Selection Criteria
Selection should be based on the required flow rate and head, and matched within the available speed and nozzle size ranges. Use the stated performance parameters as the primary basis for engineering selection to ensure proper system integration and convenient onsite maintenance.
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 |
Operation & Maintenance Notes
Assembly & Disassembly
Before assembling the IH horizontal stainless steel single-stage end-suction chemical pump, carefully inspect all parts that may affect assembly and clean them thoroughly prior to assembly.
-
Pre-tighten all connecting bolts, plugs, etc. on the corresponding components.
-
Pre-position the O-rings, paper gaskets, felt, etc. in their designated locations.
-
Assemble the seal ring, packing, packing ring, and packing gland into the pump cover in sequence.
-
Install the rolling bearings onto the shaft, then place the shaft into the bearing bracket, install and tighten the bearing cover, and fasten the coupling bolts onto the shaft.
-
Install the shaft sleeve onto the shaft, mount the pump cover onto the frame, then install the impeller and lock washer, and tighten the nut. After that, place the complete assembly into the pump casing and tighten all connecting bolts between the casing and the pump cover.
During assembly, pay special attention not to omit or misplace small parts, such as the key, oil cup, water seal ring, or the O-ring inside the shaft sleeve.
The disassembly sequence is generally the reverse of the assembly sequence.
Installation
Correct installation of the IH horizontal stainless steel single-stage end-suction chemical pump is critical to its operation and service life. Installation and alignment must be carried out carefully.
-
Installation and Alignment:
(1) Remove oil, grease and dirt from the base, and place the base on the foundation.
(2) Check base levelness using a spirit level; shims may be used to adjust levelness.
(3) Grout the base with concrete and set the anchor bolt holes.
(4) After the concrete has cured, check whether the base or anchor bolts are loose; tighten if necessary, and recheck levelness.
(5) Clean the mounting surfaces of the base, pump feet and motor feet, then install the pump and motor onto the base.
(6) Maintain a proper coupling gap. Check whether the pump shaft and motor shaft centerlines are aligned; shims can be used for adjustment as required. The vertical/horizontal runout at the coupling outside diameter shall not exceed 0.1 mm, and the difference in end-face clearance around the full circumference shall not exceed 0.3 mm. -
Installation Notes:
(1) Pump installation elevation, pipeline length, diameter and flow velocity shall match the hydraulic calculation to reduce unnecessary losses.
(2) For long-distance conveyance, a larger pipe diameter should be used. The piping shall have independent supports and shall not impose any weight on the pump.
(3) If a check valve is installed on the discharge line, it shall be installed outside (downstream of) the gate valve.
Start-up, Shutdown & Operation
-
Start-up:
(1) Before coupling the pump and motor, confirm that the motor rotates in the correct direction and that the pump rotates freely.
(2) Close the discharge gate valve.
(3) Use a vacuum pump to fill the pump casing with liquid or prime the pump.
(4) Switch on the power supply. After the pump reaches normal speed, gradually open the discharge gate valve and adjust to the required operating condition. When the discharge valve is fully closed, the pump shall not run continuously for more than 3 minutes. -
Shutdown:
(1) Gradually close the discharge gate valve and cut off the power supply.
(2) If the ambient temperature is below 0°C, drain the liquid in the pump to prevent freeze damage.
(3) For long-term shutdown, disassemble, clean, apply protective oil, and store the pump properly. -
Operation:
(1) During start-up and operation, closely monitor instrument readings, bearing temperature, packing leakage, vibration and noise. Handle any abnormal conditions immediately.
(2) Bearing temperature shall not exceed 80°C, and the temperature rise above ambient shall not exceed 40°C.
(3) Under normal conditions, packing leakage shall be small and uniform.
(4) Keep the bearing oil level within the normal range. If the oil level is too low, add lubricating oil in time.
(5) If the clearance between the seal ring and the impeller is excessively worn, replace the seal ring.
OEM & Custom
Chaodun Pump offers OEM/ODM customization, including corrosion-resistant materials, mechanical seal options, and motor configurations to meet specific chemical and industrial process requirements.
FAQs
- Q1: What is the IH Horizontal Chemical Pump used for?
It is designed for clean water, seawater, and chemical liquid transfer in industrial applications. - Q2: What materials are available?
Cast iron, stainless steel, and corrosion-resistant alloys. - Q3: What is the operating temperature range?
Up to 80°C under standard conditions. - Q4: Can it handle slurries?
Yes, up to 30% solid content and viscosity ≤100 cP. - Q5: What are common industries using this pump?
Chemical, petroleum, power, paper, food, and environmental protection sectors. - Q6: What maintenance does it require?
Regular lubrication, seal inspection, and alignment checks. - Q7: Does Chaodun Pump support OEM and customization?
Yes, full customization including material, seal, and performance options.