Product Description
Model Code Explanation

Product Introduction
IHF single-stage single-suction fluoroplastic alloy chemical pump is designed in accordance with national standards and developed based on the manufacturing process of non-metallic pumps.
The pump body adopts a metal shell lined with FEP (F46), while the pump cover and impeller are made of metal inserts integrally sintered and molded with fluoroplastic.
It offers excellent corrosion resistance, wear resistance, high-temperature resistance, anti-aging properties, high mechanical strength, smooth operation, advanced and reasonable structure, reliable sealing performance, easy disassembly and maintenance, and long service life.
This pump is widely used in chemical, pharmaceutical, petroleum, metallurgy, smelting, electric power, electroplating, dyes, pesticides, papermaking, food, and textile industries.
It can continuously transport strong corrosive media such as sulfuric acid, hydrochloric acid, hydrofluoric acid, nitric acid, aqua regia, strong alkalis, strong oxidants, organic solvents, and reducing agents at temperatures ranging from -85°C to 200°C, at any concentration.
Structure & Features
The IHF single-stage single-suction fluoroplastic alloy chemical pump uses a pump body with a metal exterior lined with FEP (F46).
The impeller and pump cover are manufactured using metal inserts fully encapsulated in fluoroplastic and integrally sintered and molded.
The shaft seal adopts an external bellows mechanical seal; the stationary ring is made of 99.9% alumina ceramic or silicon carbide, while the rotating ring uses PTFE-filled material or silicon carbide.
Key features include advanced and reasonable structure, strong corrosion resistance, reliable sealing, stable operation, low noise, and long service life.
Structure Diagram

|
No.
|
Name
|
No.
|
Name
|
|
1
|
Pump Body
|
7
|
Mechanical Seal Gland
|
|
2
|
Impeller Frame
|
8
|
Stationary Ring
|
|
3
|
Impeller
|
9
|
Rotary Ring
|
|
4
|
Pump Body Lining
|
10
|
Pump Shaft
|
|
5
|
Pump Cover Lining
|
11
|
Bearing Housing
|
|
6
|
Pump Cover
|
12
|
Coupling
|
Performance Parameters
|
Model
|
Speed
|
Flow Rate Q
|
Head
|
Efficiency
|
Power
|
Required NPSH
|
||
|
Shaft Power
|
Motor Power
|
|||||||
|
r/min
|
m3/h
|
L/s
|
m
|
%
|
KW
|
KW
|
m
|
|
|
IHF32-25-125
|
2900
|
3.5
5 6.5 |
0.97
1.39 1.8 |
21
20 18 |
40
44 42 |
0.5
0.62 0.76 |
1.5
|
2.3
|
|
IHF32-25-125A
|
2900
|
3.1
4.5 5.8 |
0.06
1.25 1.61 |
17.6
16 14.4 |
38
41 40 |
0.7
0.48 0.57 |
1.1
|
2.3
|
|
IHF32-25-160
|
2900
|
3.5
5 6.5 |
0.97
1.39 1.8 |
33
32 30 |
34
40 42 |
0.93
1.1 1.26 |
2.2
|
2.3
|
|
IHF32-25-160A
|
2900
|
3.1
4.5 5.8 |
0.86
1.25 1.61 |
29
28 26 |
30
35 36 |
0.81
0.97 1.14 |
1.5
|
2.3
|
|
IHF40-32-125
|
2900
|
4.4
6.5 8.3 |
1.22
1.8 2.31 |
21
20 18 |
40
45 43 |
0.63
0.79 0.95 |
2.2
|
2.5
|
|
IHF40-32-125A
|
2900
|
3.9
5.6 7.4 |
1.08
1.56 2.06 |
17.6
16 14.4 |
38
42 40 |
0.49
0.58 0.72 |
1.5
|
2.5
|
|
IHF40-32-160
|
2900
|
4.4
6.5 8.3 |
1.22
1.8 2.31 |
33
32 30 |
34
40 39 |
1.16
1.42 1.71 |
2.2
|
2.5
|
|
IHF40-32-160A
|
2900
|
3.9
5.6 7.4 |
1.08
1.56 2.06 |
29
28 26 |
32
38 37 |
0.96
1.23 1.41 |
1.5
|
2.5
|
|
Model
|
Speed
|
Flow Rate Q
|
Head
|
Efficiency
|
Power
|
Required NPSH
|
||
|
Shaft Power
|
Motor Power
|
|||||||
|
r/min
|
m3/h
|
L/s
|
m
|
%
|
KW
|
KW
|
m
|
|
|
IHF50-32-125
|
2900
|
8.8
12.5 16.3 |
2.44
3.47 4.53 |
21.5
20 17.5 |
45
54 53 |
1.15
1.26 1.47 |
2.2
|
3.0
|
|
IHF50-32-125A
|
2900
|
8
11 14.5 |
2.22
3.05 4.03 |
17
16 14 |
42
52 51 |
0.88
0.92 1.08 |
1.5
|
3.0
|
|
IHF50-32-160
|
2900
|
8.8
12.5 16.3 |
1.08
1.56 2.06 |
33
32 30 |
41
48 47 |
1.93
2.27 2.84 |
4
|
3.0
|
|
IHF50-32-160A
|
2900
|
8.2
11.7 15.2 |
2.28
3.25 4.22 |
29
28 26 |
39
47 46 |
1.16
1.88 2.34 |
3
|
3.0
|
|
IHF50-32-200
|
2900
|
8.8
12.5 16.3 |
2.44
3.47 4.53 |
52
50 48 |
34
42 41 |
3.7
4.1 5.2 |
7.5
|
3.0
|
|
IHF50-32-200A
|
2900
|
8.2
11.7 15.2 |
2.28
3.25 4.22 |
45
44 42 |
31
40 39 |
3.24
3.5 4.45 |
5.5
|
3.0
|
|
IHF50-32-250
|
2900
|
8.8
12.5 16.3 |
1.08
1.56 2.06 |
82
80 76 |
27
35 34 |
7.3
7.8 10 |
11
|
3.0
|
|
IHF50-32-250A
|
2900
|
8.2
11.7 15.2 |
2.28
3.25 4.22 |
71
70 68 |
25
34 33 |
4.53
6.56 8.52 |
7.5
|
3.0
|
|
Model
|
Speed
|
Flow Rate Q
|
Head
|
Efficiency
|
Power
|
Required NPSH
|
||
|
Shaft Power
|
Motor Power
|
|||||||
|
r/min
|
m3/h
|
L/s
|
m
|
%
|
KW
|
KW
|
m
|
|
|
IHF65-50-125
|
2900
|
17.5
25 32 |
4.86
6.94 8.89 |
21.5
20 17.5 |
56
64 63 |
1.83
2.13 2.42 |
3
|
3.5
|
|
IHF65-50-125A
|
2900
|
15.6
22.3 29 |
4.33
6.19 8.06 |
17
16 14 |
53
62 61 |
1.36
1.57 1.79 |
2.2
|
3.5
|
|
IHF65-50-160
|
2900
|
17.5
25 32 |
4.86
6.94 8.89 |
33
32 27.5 |
50
59 57 |
3.15
3.69 4.2 |
5.5
|
3.5
|
|
IHF65-50-160A
|
2900
|
16.4
23.3 30.4 |
4.56
6.47 8.44 |
29
28 24 |
48
58 56 |
2.7
3.1 3.54 |
4
|
3.5
|
|
IHF65-40-200
|
2900
|
17.5
25 32 |
4.86
6.94 8.89 |
52
50 45.5 |
45
54 54 |
5.5
6.3 7.35 |
11
|
3.5
|
|
IHF65-40-200A
|
2900
|
16.4
23.3 30.4 |
4.56
6.47 8.44 |
46
44 40 |
43
53 52 |
4.3
5 5.2 |
7.5
|
3.5
|
|
IHF65-40-250
|
2900
|
17.5
25 32 |
4.86
6.94 8.89 |
82
80 76 |
39
50 52 |
10.1
10.9 12.74 |
18.5
|
3.5
|
|
IHF65-40-250A
|
2900
|
16.4
23.3 30.4 |
4.56
6.47 8.44 |
71
70 68 |
36
48 50 |
8.8
9.3 11.25 |
15
|
3.5
|
|
Model
|
Speed
|
Flow Rate Q
|
Head
|
Efficiency
|
Power
|
Required NPSH
|
||
|
Shaft Power
|
Motor Power
|
|||||||
|
r/min
|
m3/h
|
L/s
|
m
|
%
|
KW
|
KW
|
m
|
|
|
IHF80-65-125
|
2900
|
35
50 65 |
9.72
13.89 18.06 |
21.5
20 17 |
64
69 67 |
3.2
3.95 4.5 |
5.5
|
4.0
|
|
IHF80-65-125A
|
2900
|
31
45 58 |
31
45 58 |
17
16 14 |
62
68 67 |
2.3
2.88 3.3 |
4
|
4.0
|
|
IHF80-65-160
|
2900
|
35
50 65 |
9.72
13.89 18.06 |
33
32 27.5 |
60
68 67 |
5.24
6.41 7.27 |
11
|
4.0
|
|
IHF80-65-160A
|
2900
|
31
45 58 |
31
45 58 |
29
28 24 |
58
67 66 |
4.3
5 5.2 |
7.5
|
4.0
|
|
IHF80-50-200
|
2900
|
35
50 65 |
9.72
13.89 18.06 |
52
50 48 |
52
64 65 |
9.53
10.64 12.39 |
15
|
4.0
|
|
IHF80-50-200A
|
2900
|
31
45 58 |
31
45 58 |
46
44 40 |
50
63 62 |
7.35
8.56 10 |
11
|
4.0
|
|
IHF80-50-250
|
2900
|
35
50 65 |
9.72
13.89 18.06 |
82
80 72 |
40
50 51 |
19.4
21.8 25 |
30
|
4.0
|
|
IHF80-50-250A
|
2900
|
31
45 58 |
31
45 58 |
71.5
70 63 |
39
50 51 |
15.4
17.6 19.9 |
22
|
4.0
|
|
Model
|
Speed
|
Flow Rate Q
|
Head
|
Efficiency
|
Power
|
Required NPSH
|
||
|
Shaft Power
|
Motor Power
|
|||||||
|
r/min
|
m3/h
|
L/s
|
m
|
%
|
KW
|
KW
|
m
|
|
|
IHF100-80-125
|
2900
|
70
100 130 |
19.4
27.8 36.1 |
23
20 14 |
70
75 65 |
6.26
7.26 7.63 |
11
|
5.0
|
|
IHF100-80-125A
|
2900
|
62.6
89 116 |
17.4
24.7 32.2 |
18
16 11 |
68
73 65 |
4.5
5.3 5.74 |
7.5
|
5.0
|
|
IHF100-80-160
|
2900
|
70
100 130 |
19.4
27.8 36.1 |
33
32 27.5 |
68
74 65 |
9.53
11.78 13.03 |
15
|
5.0
|
|
IHF100-80-160A
|
2900
|
65.4
93.5 121 |
18.2
26 33.6 |
32
28 21 |
66
73 65 |
8.6
9.3 10.6 |
11
|
5.0
|
|
IHF100-65-200
|
2900
|
70
100 130 |
19.4
27.8 36.1 |
52
50 48 |
64
72 71 |
15.5
18.91 20.94 |
30
|
5.0
|
|
IHF100-65-200A
|
2900
|
65.4
93.5 121 |
18.2
26 33.6 |
46
44 40 |
63
71 70 |
13
15.02 17.4 |
22
|
5.0
|
|
IHF100-65-250
|
2900
|
70
100 130 |
19.4
27.8 36.1 |
87
80 68 |
62
69 68 |
26.6
31.6 35 |
45
|
4.0
|
|
IHF100-65-250A
|
2900
|
65.4
93.5 121 |
18.2
26 33.6 |
76.5
70 59 |
60
68 67 |
20.25
26.2 28 |
37
|
4.5
|
|
Model
|
Speed
|
Flow Rate Q
|
Head
|
Efficiency
|
Power
|
Required NPSH
|
||
|
Shaft Power
|
Motor Power
|
|||||||
|
r/min
|
m3/h
|
L/s
|
m
|
%
|
KW
|
KW
|
m
|
|
|
IHF32-25-125
|
1450
|
1.75
2.5 3.25 |
0.49
0.69 0.9 |
5.25
5 4.5 |
37
40 38 |
0.068
0.085 0.105 |
0.75
|
2.3
|
|
IHF32-25-160
|
1450
|
1.75
2.5 3.25 |
0.49
0.69 0.9 |
8.25
8 7.5 |
30
38 40 |
0.131
0.143 0.166 |
0.75
|
2.3
|
|
IHF40-32-125
|
1450
|
2.2
3.25 4.15 |
0.6
0.9 1.15 |
5.25
5 4.5 |
37
41 40 |
0.085
0.108 0.127 |
0.75
|
2.5
|
|
IHF40-32-160
|
1450
|
2.2
2.5 3.25 |
0.6
0.9 1.15 |
8.25
8 7.5 |
33
36 37 |
0.14
0.15 0.18 |
0.75
|
2.5
|
|
Model
|
Speed
|
Flow Rate Q
|
Head
|
Efficiency
|
Power
|
Required NPSH
|
||
|
Shaft Power
|
Motor Power
|
|||||||
|
r/min
|
m3/h
|
L/s
|
m
|
%
|
KW
|
KW
|
m
|
|
|
IHF50-32-125
|
1450
|
4.4
6.25 8.15 |
1.2
1.74 2.26 |
5.37
5 4.37 |
37
46 45 |
0.17
0.18 |
0.75
|
3.0
|
|
IHF50-32-160
|
1450
|
4.4
6.25 8.15 |
1.2
1.74 2.26 |
8.25
8 7.5 |
31
41 42 |
0.31
0.33 0.39 |
0.75
|
3.0
|
|
IHF50-32-200
|
1450
|
4.4
6.25 8.15 |
1.2
1.74 2.26 |
13
12.5 12 |
25
33 36 |
0.62
0.65 0.74 |
1.5
|
3.0
|
|
IHF50-32-250
|
1450
|
4.4
6.25 8.15 |
1.2
1.74 2.26 |
20.5
20 19 |
20
27 30 |
1.22
1.26 1.4 |
2.2
|
3.0
|
|
IHF65-50-125
|
1450
|
17.5
25 32 |
4.86
6.94 8.89 |
5.37
5 4.37 |
45
57 58 |
0.28
0.3 0.33 |
0.75
|
3.5
|
|
IHF65-50-160
|
1450
|
17.5
25 32 |
4.86
6.94 8.89 |
8.25
8 6.87 |
40
53 51 |
0.49
0.51 0.59 |
1.1
|
3.5
|
|
IHF65-40-200
|
1450
|
17.5
25 32 |
4.86
6.94 8.89 |
13
12.5 11.4 |
36
46 47 |
0.86
0.93 1.05 |
1.5
|
3.5
|
|
IHF65-40-250
|
1450
|
17.5
25 32 |
4.86
6.94 8.89 |
20.5
20 19 |
32
42 44 |
1.52
1.62 1.88 |
3
|
3.5
|
|
Model
|
Speed
|
Flow Rate Q
|
Head
|
Efficiency
|
Power
|
Required NPSH
|
||
|
Shaft Power
|
Motor Power
|
|||||||
|
r/min
|
m3/h
|
L/s
|
m
|
%
|
KW
|
KW
|
m
|
|
|
IHF80-65-125
|
1450
|
17.5
25 32 |
4.86
6.94 8.89 |
5.37
5 4.25 |
54
64 62 |
0.47
0.53 0.61 |
1.1
|
4.0
|
|
IHF80-65-160
|
1450
|
17.5
25 32 |
4.86
6.94 8.89 |
8.25
8 7.5 |
50
62 61 |
0.78
0.88 1 |
1.5
|
4.0
|
|
IHF80-50-200
|
1450
|
17.5
25 32 |
4.86
6.94 8.89 |
13
12.5 11.38 |
51
59 58 |
1.21
1.44 1.74 |
3
|
4.0
|
|
IHF80-50-250
|
1450
|
17.5
25 32 |
4.86
6.94 8.89 |
20.5
20 18 |
40
50 51 |
2.4
2.7 3.12 |
4
|
4.0
|
|
IHF100-80-125
|
1450
|
35
50 65 |
9.72
13.89 18.06 |
5.75
5 3.5 |
65
70 64 |
0.85
0.97 0.98 |
1.5
|
4.5
|
|
IHF100-80-160
|
1450
|
35
50 65 |
9.72
13.89 18.06 |
8.5
8 6.5 |
60
68 67 |
1.35
1.6 1.69 |
2.2
|
4.5
|
|
IHF100-65-200
|
1450
|
35
50 65 |
9.72
13.89 18.06 |
13
12.5 10.5 |
60
68 63 |
2.06
2.5 2.95 |
4
|
4.5
|
|
IHF100-65-250
|
1450
|
35
50 65 |
9.72
13.89 18.06 |
21.2
20 18.5 |
58
63 62 |
3
4.3 4.72 |
5.5
|
4.5
|
Preparation Work
1. The correct installation of the IHF Single-Stage Single-Suction Fluoroplastic Alloy Chemical Pump is crucial to its normal operation and service life; therefore, installation and alignment must be carried out carefully.
2. Pre-embed foundation bolts according to installation dimensions and construct the concrete foundation.
3. After the foundation concrete has fully cured, place the pump on the foundation and use a level to check the alignment of the pump and motor shafts. If not level, adjust with shims until aligned, then tighten the foundation nuts.
4. Check whether the pump’s rotating components are jammed or rubbing. Ensure strict alignment (coaxiality) between the pump shaft and motor shaft; use shims if necessary. Rotate the coupling by hand—smooth, uniform rotation without friction indicates proper installation.
5. The suction and discharge pipelines must have their own supports. The weight of the pipelines must not be supported by the pump to avoid damage.
6. If the pump installation position is above the liquid level (within allowable suction range), install a foot valve at the suction line end, and a filling plug or valve on the discharge line for priming before startup. If the pump is installed below the liquid level, install a shut-off valve and a filter on the suction line. The filter area should be 3–4 times larger than the pipeline cross-sectional area to prevent debris from entering the pump.
7. For high-head pumps, a check valve should be installed downstream of the outlet flow control valve to prevent water hammer caused by sudden shutdown.
8. The installation height must meet the pump’s NPSH requirement, while also considering pipeline losses and medium temperature.
Operation & Maintenance
Pump Startup, Operation, and Shutdown
1. Before startup, the pump must be fully filled with the liquid to be pumped. Dry running is strictly prohibited.
2. Close the discharge valve, turn on the power, and immediately check whether the rotation direction matches the direction indicated on the pump. Reverse rotation is strictly prohibited.
3. After the pump reaches normal speed, gradually open the discharge valve and adjust to the required operating condition. When the discharge valve is fully closed, the pump must not run continuously for more than 3 minutes.
4. When stopping the pump, first close the discharge valve, then cut off the power supply.
Maintenance & Care
1. Regularly check the pump and motor, and replace worn components.
2. Frequently add high-quality calcium-based grease to the bearing housing to maintain proper lubrication.
3. For long-term shutdowns, drain the corrosive liquid from the pump, clean all parts and internal flow passages thoroughly, and disconnect the power supply.
4. The pump must not operate without liquid (no-load running is strictly prohibited).
5. If the medium contains solid particles, a filter must be installed at the pump inlet.
OEM & Custom Solutions
Chaodun Pump provides OEM and ODM customization including F46 lining thickness adjustments, special mechanical seal configurations, and motor-matched drive solutions for different chemical applications. Customization is available for temperature, pressure, and corrosion resistance requirements.
FAQs for Oversea Buyers
Q1: What is the IHF Chemical Pump used for?
It is designed for transferring strong corrosive acids, alkalis, and chemical solutions in industrial applications.
Q2: What materials are used in the pump?
The casing is lined with F46 fluoroplastic, and the impeller and cover are fully encapsulated with fluoroplastic alloy.
Q3: What is the operating temperature range?
From -85°C to 200°C depending on the medium.
Q4: Is the pump suitable for high-concentration acids?
Yes, it can handle strong acids like H₂SO₄, HCl, HF, and HNO₃.
Q5: What seal type does it use?
External bellows mechanical seal with ceramic or silicon carbide rings.
Q6: Does Yitie Pump offer OEM and custom solutions?
Yes, full OEM/ODM services are available including customized materials and configurations.
Q7: What industries commonly use the IHF pump?
Chemical, pharmaceutical, metallurgy, electroplating, food, textile, and wastewater treatment industries.