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The basic components of the carbon packing are as follows. 1 end friction pair (static and moving ring): To maintain the friction surface close to form the sealing surface to prevent leakage of the medium, the static and dynamic rings are required to have good wear resistance, the moving ring can move axially, and the sealing surface wear is automatically compensated. So that it fits well with the static ring (the moving ring should have good followability), and the static and dynamic rings have a floating cushioning effect. 2 elastic components (spring, bellows, serpentine sleeve, diaphragm, etc.): mainly plays the role of pre-tightening, compensation and buffering. It is also an important factor for generating a reasonable specific pressure on the sealing face of carbon packing. It is required to always maintain elasticity. Overcoming the friction of the auxiliary seal transmission member and the inertia of the moving ring, etc., ensuring that the end face friction pair is well fitted and the follower of the moving ring, and the material requires corrosion resistance and fatigue. 3 Auxiliary seals (O-rings, V-rings, wedge rings and other special-shaped seal rings): The carbon packing should play the role of sealing the static ring and the moving ring, and also play the role of floating buffer, requiring the assistance of the static ring. The sealing element can ensure the sealing between the static ring and the gland and the floating ring. The auxiliary sealing element of the moving ring can ensure the sealing between the moving ring and the shaft or the sleeve and the floating of the moving ring. Materials are required to be heat or cold resistant and compatible with the media.
Transmission parts (drive pin electric drive ring, transmission seat, transmission sleeve, transmission key, transmission lug or jaw connector): play the role of transmitting the torque of the shaft to the moving ring, the transmission pin and pressure of the intermediate transmission The ring-drive ring, the drive pin-spring seat act as a transmission, and the carbon packing material requires wear resistance and corrosion resistance. 5 Fasteners (tightening screws, spring seats, gland, assembly sleeve, bushing): To play the role of positioning, fastening and loading of static and dynamic rings, it is required to position correctly and ensure that the friction pair sealing surface is correct. The position and maintain a good fit to the spring specific pressure. At the same time, it is required to be easy to disassemble, easy to place and reuse. At the point of fitting with the auxiliary seal, pay attention to the guide side angle and the amount of compression of the seal ring. In particular, it should be noted that the dynamic ring-assisted seal and the bushing are required to be corrosion-resistant and wear-resistant, and if necessary, a hard-faced layer is used. Carbon packing seals typically have four sealing locations (channels). A is the end face seal, the moving ring of the rotating ring and the end face of the stationary ring cooperate with each other to slide relative to each other, also known as the main seal in the mechanical seal device, which is the key to determine the mechanical seal performance and life; B is the static ring 7 and pressure Seal between the end faces of the cover 4; C is the seal between the moving ring 3 and the mating surface of the shaft (or bushing) 9. Because it can move axially with the compensating ring and seals, it is also called the secondary seal. When worn, the carbon packing can only follow the axial movement of the compensating ring in a slight amount, which is actually a relatively static seal; D is the seal between the gland and the end face of the pump casing. B, D, C are static seals. These leakage channels are relatively easy to block, and are generally not easy to leak. A is the opposite end rotary seal. As long as the design is reasonable, the leakage can be achieved. The mechanical seal has high requirements for the processing of the sealing end face (flatness: 0.009 mm, surface roughness: hard ring Ra ≤ 0.1 μm, soft ring Ra ≤ 0.2 μm).
In order to maintain the necessary lubricating film between the sealing faces of the carbon packing, the pressing force per unit area on the end face must be strictly controlled, and the unit pressure on the end face is too large to form a stable lubricating liquid film, which accelerates the wear of the end face. The unit pressure on the end face is too small and the amount of leakage increases. Therefore, in order to obtain good sealing performance and long life, when designing and installing the mechanical seal, it is necessary to ensure that the end unit pressure value is within the most appropriate range. (1) According to the contact state of the sealing end face, the end face contact state of the mechanical end face seal is different, mainly including contact mechanical seal, non-contact carbon packing seal and semi-contact mechanical seal. The contact condition of the sealing surface is determined by the rough (uneven) gap between the nominal (average) gap of the sealing end face of a certain surface roughness and the lubrication condition of the sealing surface. The contact type carbon packing seal is a mechanical seal which is pre-compressed by the elastic element, and the sealing fluid pressure and the elastic element pressing force make the sealing surface microprotrusion contact. This type of sealed end face has a small nominal gap (h is a few to 2 μm) and is mostly operated under mixed lubrication and boundary lubrication.
Full Spectrum LED Grow Light for Greenhouse/Hydroponics/Plants Growing
What is Full spectrum led chip ?
It is the newest trend for LED Horticulture Lighting. Advanced LED Grow Lights chip, not provide sigle color,provide broad spectrum 400nm~840nm ,simialr with sun light ,but most is red and blue ,it is best for LED Horticulture Grow Lights.This is a revolutionary step for LED grow lights which have previously been unable to act as the sole light source for the indoor garden.Suitable for all stages of plant growth.
How to Select the Best Grow Light for your Greenhouse?
The plant needs light to thrive cause the light is essental for photosynthesis.without it,plants can not make food.but light can also be too intense,too hot or last too long for growing healthy plants.plant growth accelerates with abundant light because more of the plant`s leaves have exposure,which means more photosynthesis.in the winter,days are not long enough,but many plants still need 12 hours or more of light per day.now,adding led grow lights to your greenhouse is an nice choice if you live in the north, and can not get enough daylight in winter.you might be take HID into consideration,cause it has high output and cover a wide area.but now,we providing you some dfferent.the newest type of grow lights use LED technology.
Provides Maximum Light Density and optimizing spectrum(410nm-740nm,white)
As we know that the plants need more light from the blue side of the spectrum during their seedling stage and when developing foliage and require light from the orange to red side of the spectrum while inblooming and fruiting phases. We adopting lastest intergrated COB technology, white , more red and blue PAR(410-740nm) per Watt than any other lighting fixture for the best color uniformity.
Dual Veg and Bloom for plant growth and bloom
The Led grow lights feature selectable VEG and BLOOM light spectrums to deliver maximum performance from seeding through the flower stage and finally harvest.
Increase yields and potency
Using high quality lense that hyper-focus the lights on your canopy.the photons are beamed directly to the plants.this gives growers the ability to get greatest possible crop yield.
Reduce your costs with energy efficiency
Energy-efficient cannabis grow lights cost between 40%-60% less to operate compared to HID lam year
Led grow light also eliminate the needs for ballasts and reflectors while they minimize the cooling systems,accelerating your payback.you will see the electrical bills trimmed by approximately half,year after year.
Installs and operates simply
the input voltage is AC100V-240V,fit for the world standard,built-in power supply.do not need other equipment,just access to the Plug,the lamp will be work smoothly. The led grow lighting is small size,just few inches and easy to install.it is the good option for some greenhouse.
Long lifespan
Using built-in quiet fans and the shutter in the wind,induced draftfrom all sides.runs with quiet. Useadvanced isolation power supply and soft start protection technology, to prevent the high voltage when turn on the light from damagingthe lamp body.
Philizon LED lights have the HIGHEST PAR/LUMEN OUTPUT PER WATT of any LED grow lights! 2x-3x the intensity of any other lights!
SUPERIOR 12-band full spectrum from the depths of UV to the heights of IR - The most complete and efficient spectral output available
Selectable VEG/FLOWER switches with 8x high speed whisper quiet fans plus ALL NEW upgraded aluminum cooling heat sinks
1600w HPS replacement with 8.5ft x 7.5ft coverage at 3.28feet height PERFECT for massive commercial applications or using multiple units for even coverage.COMPLETE 3 YEAR WARRANTY plus our exclusive 90 DAY SATISFACTION OR RETURN GUARANTEE
Application
Greenhouse, Hydroponics, Aeroponics, Home Garden, Farm, Vegetable Shed, Botanic Garden, Flower Exhibitions, Horticulture, Hydroponics, Hemp Cultivations , Medical Plants Cultivations, etc.
Warranty
1.3years Manufacturer's Warranty for defective items within 3 years
2.We will guide you to fix it if gets small problems within 3 years
3.We will send you new items if the products are totally broken since technical or quality matters within 3 years
4.Retun and Refund: we provide 30days no question item return, we will refund all your money after we get the item, and we both provide 50% of the return shipping fee.
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Shenzhen Phlizon Technology Co.,Ltd. , https://www.szledplantgrowlights.com