Clogged sewage pump is a certain self-priming capacity, can make the pump in the high place of the liquid or water level low suction pump chamber through the impeller high-speed liquid thrown out, to achieve the purpose of delivery and promotion of liquid. Non-clogged sewage pump sometimes unqualified products or long service life, decreased self-absorption capacity, we can not achieve the purpose, however, non-clogging sewage pump is actually self-absorption due to the different ways can be divided into external mixing Clogged sewage pump, mixed with non-clogging sewage pump and with the pump itself to provide a vacuum pump water pump clogging sewage and other structural forms.
Here are some ways to improve the life of non-clogging sewage pump to improve self-absorption capacity:
The first approach is also the simplest way: self-priming sewage pump set in the pump suction pipe vacuum pump, the pump starts before the vacuum pump to start, so that the pump suction pipe filled with water, to ensure that the pump automatically, quickly started. This kind of water absorption method needs perfect automatic control system to ensure normal work.
The second method is also relatively simple compared to the following: Non-clogged sewage pump to reduce the water pipe bend, drop height and horizontal spacing.
The third method is a little cumbersome, but it is also good to use: Non-clogged blowdown pumps Set pump suction cups. In this way, a water suction tank needs to be set on the water suction pipe of the water pump. Before the first operation of the water pump, the tank should be manually filled with water. After the first operation is stopped, since the height of the water inlet pipe of the water suction tank is higher than the water level in the pipe, The water level in the tank is lower than the water level in the tank. The water in the tank will not flow back into the water tank. Therefore, a certain amount of water can be stored in the water tank and the height of the water outlet pipe of the water tank Lower than the tube surface height, it can ensure that the pump suction pipe full of water, after the pump and then run, the water tank is pumped by the pump, the tank thrown negative pressure, water in the pool under the action of atmospheric pressure Added to the suction tank, through the sump tank inside.
The last option, self-priming sewage pump suction pipe end installed suction bottom valve. Suction valve is actually a check valve, which ensures that water can only enter the suction pipe from the pool and can not reverse, so if the suction pipe filled with water, although the pump shaft elevation above the working level of the pool, but because there is suction The role of the end of the valve, the water pipe will not flow into the pool, the suction pipe has been filled with water to ensure that the pump can automatically and quickly start.
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Silicon Powder Coating
SILICONE HIGH TEMPERATURE POWDER COATING
Our company has been successfully developed silicone high temperature powder coating first in domestic in2008, which isthe leader in the domestic high temperature powder coating industry.
HLM high temperature powder coatings are new type environmental friendly powder coatings.It possesses ultra-high temperature and fire resistance (600-1200°C) as well as thermal stability, and is widely applied in high-temperature industries,such as fireplace, heater, barbecue grills, oven,charcoal oven,pellet stove, gas stove, griddle, pizza stove, chimney,exhaustpipe,household appliances, outdoor leisure products,aerospace,etc.
PROPERTIES
Environmental protection,no VOC emissions, UItra-high temperature resistance and excellent
and respond to the national advocacy of the thermal excellent thermal stability,temperature
"paint to powder"policy. resistance of more than 600℃ .
Non-toxic and safe:food grade. Good in mechanical and physical properties.
OPERATING PARAMETERS
l Pre-treatment
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Pre-treatment
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Pre-treatment
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Degreasing, rust removal, sandblasting,phosphating, silane treatment, or ceramic coating, etc.
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Attention
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Before spraying, please ensure that the substrate is thoroughly degreased and rust-free, with no impurities, water stains, or residual liquid.
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Note
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Acid washing and sandblasting the substrate can enhance the adhesion between the coating and the substrate.
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Spraying requirements
Cured condtions：20 mins. at 230℃ metal temperature Cured Film Thickness：30-70um.
Attention: Ensure that the coating thickness of the product is within a reasonable range. Excessive thickness may affect the temperature resistance of the product.
Storage Stability
Keep storage environment well-ventilated and dry, with temperatures not exceeding 27°C.
Properties parameter
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Items
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Standard
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Result
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Impact
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ASTM D-2794
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80in.ibf（Direct)/20in.ibf（indirect)
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Pencil Hardness
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ASTM D3363
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≧2H
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Adhesion(100cells)
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ASTM D-3359
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Full pass (5B)
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Flexibility
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ASTM D522
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3/16'inch
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Salt spray resistance(5%Nacl)
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ASTM B-117
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500H,Corrsion,≤3mm,
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Why choose Holyme?
Silicon Powder Coating,Powder Coating Silicone,Silicone Powder Coating,Powder Coating
HLM Powder Coating CO,.Ltd , https://www.holymepowder.com
