Naipu AF vertical froth pumps are of heavy duty construction, designed for continuous pumping of highly abrasive and corrosive frothy slurries. They have a vertical shaft configuration, and comprise a hopper, with vertical Bearing Assembly, and Type`NP-AH` pump wet-end. They feature a wide choice of replaceable abrasion resistant metal or moulded elastomer casing liners and Impellers.
Handle Frothy Slurries
AF vertical Froth Pump Showing Component
Main Part Number At The Drawing
Materials of Construction
LINERS
IMPELLERS
CASING
BASE
EXPELLER
EXPELLER RING
SHAFT SLEEVE
SEALS
Standard
Chrome Alloy
Chrome Alloy
SG Iron
SG Iron
Chrome Alloy
Chrome Alloy
SG Iron
Rubber
Options
Ferralium
Ferralium
SG Iron
MS
NI Resist
NI Resist
EN56C
Ceramic
NP-AF FROTH PUMP SELECTION CHART
NP-AF FROTH PUMP PERFORMANCE PARAMETERS
Type
Allowable Mating Max. Power(Kw)
Clear Water Performance
Impeller
Capacity/Q m³/hr
Head/m
Speed/rpm
Max Efficiency/%
Impeller Diameter/mm
2QV-NP-AF
15
7.2-33
5-30
800-1800
45%
229
3QV-NP-AF
20
10-104
10-28
700-1500
55%
268
4RV-NP-AF
40
15-130
6-28
500-1050
55%
397
6SV-NP-AF
75
55-330
6-25
350-680
55%
560
Vertical Froth Pump,Froth Pump,Froth Slurry Pump,Centrifugal Froth Pump,Mining Pump,Foam Pump,Vertical Foam Pump Shijiazhuang Naipu Pump Co., Ltd. , https://www.naipu-pump.com
Typical Applications---
Minerals Flotation Processing
2.Bearing Assembly
3.Tank
4.Frame Plate
5.Cover Plate
Natural Rubber
Natural Rubber
or
SG Iron
or
SG Iron
and
Nitrile
Hastelloy C
316 SS
W151
Polyurethane
Neoprene
Butyl
Viton
Nitrile
EPDM
Hypalon
Hastelloy C
316 SS
W151
Polyurethane
Neoprene
Butyl
Nitrile
Hypalon
Various grades
Fabricated
Cast Iron
Ferralium
Hastelloy C
Polyurethane
316 SS
W151
Ferralium
Hastelloy C
316 SS
Rubber
W151
Polyurethane
Neoprene
Butyl
Nitrile
Ferralium
Hastelloy C
Titanium
316 SS
304 SS
Stellite
Chrome Oxide
Nordel
Neoprene
Viton
Due to the excessive rainfall this year, early defoliation of apple trees has become a serious issue in Qianyang County. This condition, primarily caused by apple leaf diseases, not only affects the yield and quality of the current harvest but also impacts flower bud formation and can lead to secondary flowering, resulting in smaller fruits. According to recent investigations by the Plant Protection Station in Qianyang County, the disease incidence rate in key apple villages reached 63%, with a diseased plant rate of 34% and a leaf infection rate of 13.6%. The problem has emerged earlier than usual and is more severe, as autumn rainfall continues to increase.
To address this issue, it's essential to implement effective measures promptly. First, it's important to clean up and remove infected leaves, burning or burying them to reduce the source of the disease. Second, proper orchard management should be prioritized, including the application of organic and phosphorus-potassium fertilizers to strengthen tree health and improve resistance. Pruning should be done to remove dense, weak, or competing branches, allowing better air circulation and light penetration within the canopy. Techniques such as bending, lifting, twisting, and hanging branches can help adjust their angles and orientation, further improving ventilation and reducing disease occurrence.
Third, chemical control is crucial. Spraying should be done before and after rain. For yellow varieties, a 1:3:200 dilution of Bordeaux mixture is recommended, while red varieties should use 80% mancozeb WP at 600–800 times dilution or 68.75% Enoxyfen at 1200 times. In cases of severe leaf spot, 50% iprodione WP at 1000–1500 times, 10% polyoxin WP at 1000–1500 times, or 4% Agricultural Anti-120 water agent at 600 times combined with 2% bacterial agent at 600–800 times can be applied. To prevent the solution from being washed away by rain, add 3000 times "650L" spreader or 0.1% detergent to the mixture, increasing its viscosity and enhancing effectiveness.
By taking these proactive steps, farmers can significantly reduce the impact of early defoliation and ensure healthier, more productive apple trees for future seasons. It's vital to monitor the situation closely and adjust practices as needed based on weather conditions and disease progression.
1.Bearing