S-type single-stage double-suction centrifugal pump is a new energy-saving horizontal open pump for conveying clean water Or other liquids with physical and chemical properties similar to water. According to the needs of users, the pump structure and material can be used to transport muddy sand or various corrosive liquids. This series of pumps is suitable for factories, mines, urban water supply and drainage, power stations, farmland. Drainage and irrigation and various water conservancy projects.
Structure Description
The suction port and the discharge port of this type of pump are both below the axis of the pump shaft and are horizontally perpendicular to the axis. There is no need to dismantle the inlet and outlet pipes and motors during maintenance. Seen from the direction of the drive, the pump rotates clockwise (can also be rotated counterclockwise according to the user's needs).
The main parts of the pump are: pump body, pump cover, impeller, shaft, double suction seal ring, bushing and so on.
The pump body and the pump cover form a working chamber of the impeller. On the inlet and outlet flanges, a pipe screw hole is provided for mounting a vacuum gauge and a pressure gauge. The lower part of the inlet and outlet water flange is provided with a pipe screw hole for discharging water.
The statically balanced impeller is fixed to the shaft by a bushing and bushing nuts on both sides, and its axial position can be adjusted by the bushing nut.
The pump shaft is supported by two single row radial ball bearings. The bearing is mounted in the bearing body, mounted on both ends of the pump body, and lubricated with butter.
The double suction seal ring is used to reduce water leakage from the water pumping chamber of the water pump to the suction chamber.
The pump is directly driven by the electric motor through a flexible coupling, and can also be driven by an internal combustion engine if necessary.
The shaft seal is a soft packing seal (a mechanical seal can be used according to the user's needs).
|
???????????? Model
???????????? |
????????????
???????????? Traffic Q
????????????????????????( m3/h) |
????????????
???????????? Head H
????????????????????????(m) |
????????????
???????????? Speed ??n
????????????????????????(r/min) |
????????????
???????????? Power (KW)
???????????? |
????????????
???????????? Efficiencyη
????????????????????????(%) |
????????????
???????????? Sparking allowance (NPSH)r(m)
???????????? |
????????|
|
???????????? axis power
???????????? |
????????????
???????????? Motor Power
???????????? |
????????||||||
|
100S90
|
80
|
90
|
2950
|
30.1
|
37
|
65
|
2.5
|
|
100S90A
|
72
|
75
|
23
|
30
|
64
|
2.5
|
|
|
150S100
|
160
|
100
|
59.8
|
75
|
73
|
3.5
|
|
|
150S78
|
160
|
78
|
45
|
55
|
73.5
|
3.5
|
|
|
150S78A
|
144
|
62
|
33.8
|
45
|
72
|
3.5
|
|
|
150S50
|
160
|
50
|
27.3
|
37
|
80
|
3.9
|
|
|
150S50A
|
144
|
40
|
20.9
|
30
|
75
|
3.9
|
|
|
150S50B
|
133
|
36
|
18.6
|
22
|
70
|
3.9
|
|
|
200S95
|
280
|
95
|
91.7
|
110
|
79.2
|
5.3
|
|
|
200S95A
|
270
|
75
|
73.5
|
90
|
75
|
5.3
|
|
|
200S63
|
280
|
63
|
58.3
|
75
|
82.7
|
5.8
|
|
|
200S63A
|
270
|
46
|
45.1
|
55
|
75
|
5.8
|
|
|
200S42
|
280
|
42
|
38.1
|
45
|
84.2
|
6
|
|
|
200S42A
|
270
|
36
|
33.1
|
37
|
80
|
6
|
|
|
250S65
|
485
|
65
|
1450
|
109
|
132
|
78.6
|
3
|
|
250S65A
|
468
|
54
|
89.4
|
110
|
77
|
3
|
|
|
250S39
|
485
|
39
|
61.5
|
75
|
83.6
|
3.2
|
|
|
250S39A
|
468
|
30.5
|
49.3
|
55
|
79
|
3.2
|
|
|
250S24
|
485
|
24
|
36.9
|
45
|
85.8
|
3.5
|
|
|
250S24A
|
414
|
20.3
|
27.6
|
37
|
83
|
3.5
|
|
|
250S14
|
485
|
14
|
21.5
|
30
|
85.8
|
3.8
|
|
|
250S14A
|
432
|
11
|
15.8
|
18.5
|
82
|
3.8
|
|
|
300S110
|
790
|
110
|
295.7
|
440
|
80
|
4
|
|
|
300S90
|
790
|
90
|
242.8
|
315
|
79.6
|
4
|
|
|
300S90A
|
756
|
78
|
217
|
280
|
74
|
4
|
|
|
300S90B
|
720
|
67
|
180
|
220
|
73
|
4
|
|
|
300S58
|
790
|
58
|
149.9
|
180
|
84.2
|
4.4
|
|
|
300S58A
|
720
|
49
|
118.6
|
160
|
81
|
4.4
|
|
|
300S58B
|
684
|
43
|
100
|
132
|
80
|
4.4
|
|
|
300S32
|
790
|
32
|
79.2
|
110
|
86.8
|
4.6
|
|
|
300S32A
|
720
|
26
|
60.7
|
75
|
84
|
4.6
|
|
|
300S19
|
790
|
19
|
47
|
55
|
86.8
|
5.2
|
|
|
300S19A
|
720
|
16
|
39.2
|
45
|
80
|
5.2
|
|
|
300S12
|
790
|
12
|
30.4
|
37
|
84.8
|
5.5
|
|
|
300S12A
|
684
|
10
|
3.9
|
30
|
78
|
5.5
|
|
|
350S125
|
1260
|
125
|
534
|
710
|
80.5
|
5.4
|
|
|
350S125A
|
1181
|
112
|
462
|
630
|
78
|
5.4
|
|
|
350S125B
|
1098
|
96
|
373
|
500
|
77
|
5.4
|
|
|
350S75
|
1260
|
75
|
303
|
355
|
85.2
|
5.8
|
|
|
350S75A
|
1170
|
65
|
247
|
280
|
84
|
5.8
|
|
|
350S75B
|
1080
|
55
|
197
|
220
|
82
|
5.8
|
|
|
350S44
|
1260
|
44
|
173
|
220
|
87.5
|
6.3
|
|
|
350S44A
|
1116
|
36
|
131
|
160
|
84
|
6.3
|
|
|
350S26
|
1260
|
26
|
102
|
132
|
87.5
|
6.7
|
|
|
350S26A
|
1116
|
21.5
|
78.8
|
90
|
83
|
6.7
|
|
|
350S16
|
1260
|
16
|
64.5
|
75
|
85.3
|
7.1
|
|
|
350S16A
|
1044
|
13.4
|
48.8
|
55
|
48
|
7.1
|
|
|
500S98
|
2020
|
95
|
970
|
678
|
800
|
79.5
|
4
|
|
500S98A
|
1872
|
83
|
540
|
630
|
78.5
|
4
|
|
|
500S98B
|
1746
|
74
|
452
|
560
|
78
|
4
|
|
|
500S59
|
2020
|
59
|
391
|
450
|
83
|
4.5
|
|
|
500S59A
|
1872
|
49
|
333
|
400
|
75
|
4.5
|
|
|
500S59B
|
1746
|
40
|
257
|
315
|
74
|
4.5
|
|
|
500S35
|
2020
|
35
|
219
|
280
|
88
|
4.8
|
|
|
500S35A
|
1746
|
27
|
151
|
220
|
85
|
4.8
|
|
|
500S22
|
2020
|
22
|
144.1
|
185
|
84
|
5.2
|
|
|
500S22A
|
1746
|
17
|
101
|
132
|
80
|
5.2
|
|
|
500S13
|
2020
|
13
|
86.2
|
110
|
83
|
5.7
|
|
|
600S75
|
3170
|
75
|
727
|
800
|
89
|
7.5
|
|
|
600S75A
|
2880
|
65
|
580
|
630
|
88
|
7.5
|
|
|
600S47
|
3170
|
47
|
465
|
560
|
88
|
7.5
|
|
|
600S32
|
3170
|
32
|
310
|
400
|
89
|
7.5
|
|
|
600S32A
|
2880
|
27
|
238
|
280
|
89
|
7.5
|
|
|
600S22
|
3170
|
22
|
223
|
280
|
85
|
7.5
|
|
|
600S22A
|
2880
|
18.2
|
168.5
|
200
|
84.5
|
7.5
|
|
Corrosion resistance of the main material of the pump (for reference)
| Media | ????????????concentration ????????????(%) |
????????????Polypropylene | ????????????concentration ????????????(%) |
????????????A B C | ????????||
| 25°C | ????????????50°C | ????????????20°C | ????????????60°C | ????????|||
| Sulfuric acid | ????????????60 | ????????????√ | ???????????????????????? | <30 | ????????????√ | ????????????Χ | ????????
| Nitrate | ????????????25 | ????????????√ | ???????????????????????? | 20 | ????????????√ | ????????????Ο | ????????
| Hydrochloric acid | ????????????<36 | ????????????√ | ???????????????????????? | <38 | ????????????√ | ????????????√ | ????????
| Hydroxyfluoric acid | ????????????35 | ????????????√ | ???????????????????????? | 40 | ????????????√ | ????????????Χ | ????????
| Acetate | ????????????<80 | ????????????√ | ???????????????????????? | <20 | ????????????√ | ????????????Ο | ????????
| Sodium hydroxide | ????????????100 | ????????????√ | ???????????????????????? | ???????????? | √ | ????????????√ | ????????
| potassium dichromate | ????????????25 | ????????????√ | ???????????????????????? | ???????????? | √ | ????????????√ | ????????
| Stinky water | ???????????????????????? | Χ | ???????????????????????? | ???????????? | Ο | ????????????Χ | ????????
| Ethanol | ???????????????????????? | √ | ???????????????????????? | <50 | ????????????√ | ????????????√ | ????????
| Acetone | ???????????????????????? | √ | ???????????????????????? | 10 | ????????????Ο | ???????????????????? |
| Tetrachloroethane | ???????????????????????? | Ο | ???????????????????????? | ???????????? | Ο | ????????????Χ | ????????
| Freon 22 | ???????????????????????? | √ | ???????????????????????? | ???????????? | Ο | ????????????Ο | ????????
| bleaching solution | ????????????CL13% | ????????????√ | ???????????????????????? | CL12.5% | ????????????Ο | ????????????Ο | ????????
| Plating solution | √ | Ο | Χ | |||
| Photographic fluid | √ | √ | √ | |||
| Media | ????????????concentration ????????????(%) |
????????????Stainless steel | ????????????concentration ????????????(%) |
????????????Ceramic | ????????||
| 25°C | ????????????50°C | ????????????25°C | ????????????50°C | ????????|||
| Sulfuric acid | ????????????<5 | ????????????√ | ????????????Χ | ???????????????????????? | △ | ????????????△ | ????????
| Nitrate | ????????????70 | ????????????△ | ????????????√ | ???????????????????????? | △ | ????????????△ | ????????
| Hydrochloric acid | ???????????????????????? | Χ | ???????????????????????? | ???????????? | △ | ????????????△ | ????????
| Hydroxyfluoric acid | ???????????????????????? | Χ | ???????????????????????? | 0~100 | ????????????Χ | ???????????????????? |
| Acetate | ????????????<20 | ????????????√ | ????????????√ | ???????????????????????? | △ | ????????????△ | ????????
| Sodium hydroxide | ????????????70 | ????????????√ | ????????????√ | ???????????????????????? | Ο | ????????????Χ | ????????
| potassium dichromate | ????????????40~60 | ????????????△ | ????????????△ | ????????????10~20 | ????????????△ | ????????????△ | ????????
| Stinky water | ???????????????????????? | Ο | ???????????????????????? | ???????????? | △ | ????????????△ | ????????
| Ethanol | ???????????????????????? | △ | ????????????√ | ???????????????????????? | △ | ????????????△ | ????????
| Acetone | ???????????????????????? | △ | ????????????△ | ???????????????????????? | △ | ???????????????????? |
| Tetrachloroethane | ????????????50 | ????????????△ | ????????????△ | ???????????????????????? | △ | ????????????△ | ????????
| Freon 22 | ???????????????????????? | △ | ???????????????????????? | ???????????? | △ | ????????????△ | ????????
| bleaching solution | ????????????CL12% | ????????????Χ | ???????????????????????? | ???????????? | △ | ????????????△ | ????????
| plating solution | ???????????????????????? | ???????????? | ???????????? | ???????????? | △ | ????????????△ | ????????
| Photographic fluid | ???????????????????????? | △ | ???????????????????????? | ???????????? | △ | ????????????△ | ????????
Note: △ is excellent; √ is good; Ο is available, but has obvious corrosion; Χ severe corrosion, not applicable.
Physical and mechanical properties of PVDF
| Performance | ????????????unit | ????????????Press | ????????
| density | ????????????g/cm3 | ????????????1.75-1.79 | ????????
| 比度 | ????????????cm3/g | ????????????0.56-0.75 | ????????
| melting point range | ????????????0c | ????????????155-170 | ????????
| refractive index | ????????????n25D | ????????????1.42 | ????????
| Molding shrinkage rate | ????????????% | ????????????2-3 | ????????
| Stretching strong hair (yield) | ????????????Mpa | ????????????28-41 | ????????
| Stretching strong hair (breaking) | ????????????Mpa | ????????????31-52 | ????????
| Elongation (fracture) | ????????????% | ????????????100-400 | ????????
| Impact strength (no gap) | ????????????KJ/m | ????????????107-214 | ????????
| compressive strength | ????????????Mpa | ????????????55-69 | ????????
| hardness (Shore D) | ???????????????????????? | 70-80 | ????????
| Abrasion | ????????????mg/1000r | ????????????7.0-9.0 | ????????
| Limited Oxygen Index (l0 I) | ????????????% | ????????????44 | ????????
| burning rate | ???????????????????????? | V-D | ????????
| resistivity | ????????????u194 | ????????????1.0x10 15 | ????????
| Dielectric number | ????????????10 31 CYCles | ????????????9.7 | ????????
Polyvinylidene fluoride (PVDF) chemical resistance
| Chemical Medium | ????????????concentration ????????????(%) |
????????????Maximum operating temperature °C | ????????????Chemical Medium | ????????????concentration ????????????(%) |
????????????Maximum operating temperature °C | ????????????Chemical Medium | ????????????concentration ????????????(%) |
????????????Maximum operating temperature °C | ????????
| hydrochloric acid | ????????????36 | ????????????135 | ????????????Hydrogen Hydroxide | ????????????<10 | ????????????85 | ????????????ethanol | ???????????????????????? | 135 | ????????
| sulfuric acid | ????????????<60 | ????????????120 | ????????????Hydrogen Hydroxide | ????????????50 | ????????????50 | ????????????etherether | ???????????????????????? | 50 | ????????
| sulfuric acid | ????????????80-93 | ????????????95 | ????????????Carbon ammonium oxide | ???????????????????????? | 110 | ????????????Formaldehyde | ????????????37 | ????????????50 | ????????
| sulfuric acid | ????????????90 | ????????????65 | ????????????Carbon calcium oxide | ???????????????????????? | 135 | ????????????Acetone | ????????????10% aqueous solution | ????????????50 | ????????
| Nitrate | ????????????<50 | ????????????50 | ????????????carbonate | ????????????aqueous solution | ????????????135 | ????????????肼 | ????????????aqueous solution | ????????????95 | ????????
| phosphoric acid | ????????????<85 | ????????????135 | ????????????Sodium bicarbonate | ????????????aqueous solution | ????????????120 | ????????????benzene | ???????????????????????? | 75 | ????????
| phosphoric acid | ????????????85 | ????????????110 | ????????????Ammonia water | ???????????????????????? | 110 | ????????????aniline | ???????????????????????? | 50 | ????????
| acetic acid | ????????????10 | ????????????110 | ????????????saline | ???????????????????????? | 135 | ????????????toluene | ???????????????????????? | 85 | ????????
| acetic acid | ????????????80 | ????????????80 | ????????????Sodium hydrogen phosphate | ????????????aqueous solution | ????????????120 | ????????????phenol | ???????????????????????? | 50 | ????????
| acetic acid | ????????????100 | ????????????50 | ????????????calcium phosphate | ????????????aqueous solution | ????????????135 | ????????????chlorobenzene | ???????????????????????? | 135 | ????????
| trichloroacetic acid | ????????????<10 | ????????????95 | ????????????calcium oxide | ????????????aqueous solution | ????????????135 | ????????????naphthalene | ???????????????????????? | 95 | ????????
| trichloroacetic acid | ????????????50 | ????????????50 | ????????????potassium oxide | ????????????aqueous solution | ????????????135 | ????????????chloromethane | ???????????????????????? | 135 | ????????
| oxalic acid | ???????????????????????? | 50 | ????????????Ammonium Oxide | ????????????aqueous solution | ????????????135 | ????????????chloroform | ???????????????????????? | 50 | ????????
| benzenesulfonic acid | ????????????aqueous solution | ????????????50 | ????????????ferric oxide | ????????????aqueous solution | ????????????135 | ????????????CTC | ???????????????????????? | 135 | ????????
| hydrofluoric acid | ????????????40-100 | ????????????95 | ????????????ferrous ferrous sulfate | ????????????aqueous solution | ????????????135 | ????????????chloroethane | ???????????????????????? | 135 | ????????
| hydrofluoric acid | ????????????40 | ????????????120 | ????????????ammonium sulfate | ????????????aqueous solution | ????????????135 | ????????????1.2 trichloroethane | ???????????????????????? | 135 | ????????
| hydrobromic acid | ????????????50 | ????????????130 | ????????????ammonium sulfate | ????????????aqueous solution | ????????????135 | ????????????1.1.2 trichloroethane | ???????????????????????? | 65 | ????????
| Peroxyacid | ????????????10 | ????????????95 | ????????????Sodium nitrate | ????????????aqueous solution | ????????????135 | ????????????tetrachloroethane | ???????????????????????? | 120 | ????????
| Peroxyacid | ????????????70 | ????????????50 | ????????????ammonium phosphate | ????????????aqueous solution | ????????????135 | ????????????vinyl chloride | ???????????????????????? | 95 | ????????
| Nanochloric acid | ????????????6-15 | ????????????95 | ????????????urea | ????????????aqueous solution | ????????????120 | ????????????Trichloroethylene | ???????????????????????? | 135 | ????????
| potassium chlorate | ???????????????????????? | 100 | ????????????CO2 | ???????????????????????? | 80 | ????????????Dichloroethylene | ???????????????????????? | 110 | ????????
| chromic acid | ????????????<40 | ????????????80 | ????????????chlorine dioxide | ???????????????????????? | 75 | ????????????natural gas | ???????????????????????? | 135 | ????????
| chromic acid | ????????????50 | ????????????50 | ????????????chlorine dioxide | ???????????????????????? | 65 | ????????????fuel oil | ???????????????????????? | 135 | ????????
| High potassium sulphate | ???????????????????????? | 120 | ????????????chlorine | ????????????element | ????????????95 | ????????????Paraffin oil | ???????????????????????? | 120 | ????????
| hydrogen peroxide | ????????????<30 | ????????????95 | ????????????bromine | ????????????element | ????????????65 | ???????????????????????? | ???????????? | ???????? |
| Sodium peroxide | ???????????????????????? | 95 | ????????????Iodine | ????????????element | ????????????65 | ???????????????????????? | ???????????? | ???????? |
Fluorine and corrosion performance table (for reference only)
| ???????????? | ???????????? | temperature, °C | ???????????????????? | |||||
| media | ????????????concentration% | ????????????25 | ????????????200 | ????????????media | ????????????concentration% | ????????????Temperature, 200 °C | ????????||
| sulfuric acid | ????????????0-100 | ????????????√ | ????????????√ | ????????????formic acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| fuming sulfuric acid | ???????????????????????? | √ | ????????????√ | ????????????acetic acid (acetic acid) | ????????????0-ice | ????????????√ | ????????????√ | ????????????√ | ????????
| Nitrate | ????????????0-100 | ????????????√ | ????????????√ | ????????????acetic acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| fuming sulfuric acid | ???????????????????????? | √ | ????????????√ | ????????????propionic acid | ???????????????????????? | √ | ????????????√ | ???????????????????? |
| hydrochloric acid | ???????????????????????? | √ | ????????????√ | ????????????acrylic | ???????????????????????? | √ | ???????????????????????? | ???????? |
| phosphoric acid | ???????????????????????? | √ | ????????????√ | ????????????acrylic anhydride | ???????????????????????? | √ | ????????????√ | ????????????√(boiling point) | ????????
| hydrofluoric acid | ???????????????????????? | √ | ????????????√ | ????????????methacrylic acid | ???????????????????????? | √ | ????????????√ | ????????????√(boiling point) | ????????
| hydrobromic acid | ???????????????????????? | √ | ????????????√ | ????????????butyric acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| Hydrioiodic acid | ???????????????????????? | √ | ????????????√ | ????????????辛酸 | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| hydrocyanic acid | ???????????????????????? | √ | ????????????√ | ????????????lauric acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| nitrous acid | ???????????????????????? | √ | ????????????√ | ????????????palmitic acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| nitrous acid | ???????????????????????? | √ | ????????????√ | ????????????stearic acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| chloric acid | ???????????????????????? | √ | ????????????√ | ????????????oleic acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| hypochlorous acid | ???????????????????????? | √ | ????????????√ | ????????????linoleic acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| Perchloric acid | ???????????????????????? | √ | ????????????√ | ????????????rosin acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| tetraphosphoric acid | ???????????????????????? | √ | ????????????√ | ????????????fatty acid | ???????????????????????? | √ | ????????????√ | ???????????????????? |
| carbonated | ???????????????????????? | √ | ????????????√ | ????????????chloroacetic acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| chromic acid | ???????????????????????? | √ | ????????????√ | ????????????lactic acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| silicic acid | ???????????????????????? | √ | ????????????√ | ????????????oxalic acid (oxalic acid) | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| boric acid | ???????????????????????? | √ | ????????????√ | ????????????fumaric acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| arsenic acid | ???????????????????????? | √ | ????????????√ | ????????????citric acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| selenic acid | ???????????????????????? | √ | ????????????√ | ????????????nicotinic acid | ???????????????????????? | √ | ????????????√ | ????????????√ | ????????
| fluorosilicic acid | ???????????????????????? | √ | ????????????√ | ???????????????????????? | ???????????? | ???????????? | ???????????? | ???????? |
| Fluoroborate | ???????????????????????? | √ | ????????????√ | ???????????????????????? | ???????????? | ???????????? | ???????????? | ???????? |
| chlorosulfonate | ???????????????????????? | √ | ????????????√ | ???????????????????????? | ???????????? | ???????????? | ???????????? | ???????? |
| 王水 | ???????????????????????? | √ | ????????????√ | ???????????????????????? | ???????????? | ???????????? | ???????????? | ???????? |
| mixed acid | ???????????????????????? | √ | ????????????√ | ???????????????????????? | ???????????? | ???????????? | ???????????? | ???????? |
| media | ????????????concentration% | ????????????temperature, 200 °C | ????????
| Sodium hydroxide | ???????????????????????? | √ | ????????
| potassium hydroxide | ???????????????????????? | √ | ????????
| ammonium hydroxide | ???????????????????????? | √ | ????????
| Magnesium hydroxide | ???????????????????????? | √ | ????????
| calcium hydroxide | ???????????????????????? | √ | ????????
| Aluminum Hydroxide | ???????????????????????? | √ | ????????
| Barium hydroxide | ???????????????????????? | √ | ????????
| iron hydroxide | ???????????????????????? | √ | ????????
| ferrous hydroxide | ???????????????????????? | √ | ????????
| nickel salt | ???????????????????????? | √ | ????????
| nickel sulfate | ???????????????????????? | √ | ????????
| Nitrate nitrate | ???????????????????????? | √ | ????????
| nickel chloride | ???????????????????????? | √ | ????????
| Zinc salt | ???????????????????????? | √ | ????????
| Zinc sulfate | ???????????????????????? | √ | ????????
| Zinc nitrate | ???????????????????????? | √ | ????????
| Zinc chloride | ???????????????????????? | √ | ????????