Second, reduce the loss of human urine nutrients technology: human urine is rich in N, P, K. According to the measurement, if the human urine is not treated, it will be stored in the tank for 60 days, and the loss of N is about 90%. The method of reducing the loss of human urine nutrients is: the urine is accumulated in the tank or the pool, and must be covered in the tank or the pool to prevent evaporation, preferably stored for 7 to 10 days, to reduce the accumulation time to save nutrients.
Third, reduce the loss of manure nutrient technology: First, repair the toilet, septic tank, to achieve anti-seepage, leak-proof, rain-proof, and cover the closed; Second, change the use of methods, that is, change the application as a sparse application, will The mature manure after decomposing is best applied to the soil after dilution. The time of decomposing is generally 6 to 7 days in summer and 15 to 20 days in other seasons. Thirdly, human feces and urine should be strongly promoted.
Fourth, reduce the loss of plant ash nutrient technology: Because of the large amount of potassium carbonate, the plant ash is the only alkaline potassium fertilizer in the farmyard manure. Human excrement and manure are all acidic organic fertilizers, so the two are relatively acidic, neutralized, and the nutrients are lost. According to the measurement, after the plant ash and human excrement were mixed at a ratio of 1:1.5, after storage for ten days, the loss of N was about 27.4%, and the loss of N by storage for three months was about 85.9%. Therefore, in the work of composting and fertilizing, it is necessary to vigorously promote the monocropping of plant ash, single storage, and single use. It is forbidden to pour the ash into the organic fertilizer, and at the same time prevent the ash from being leached by the rain.
Huaxian Agricultural Technology Promotion Center Lu Shuguang
Stainless Steel V-Profile Press Fittings
The V-profile press pipe system produced by Zheng kang Industrial Co., Ltd is one of the most reasonable, safe and reliable thin-walled Stainless Steel Pipe connection types. It is widely used in direct drinking water, tap water, hot and cold water, heating, gas, fire control and many other fields. Upon introducing German V-profile press technology, combining with our own technical innovation, Zheng kang has developed V-profile press pipe system. V-profile press stainless steel pipe system inherits all the advantages of press fitting system. Meanwhile, it is also featured with a luxurious appearance, high strength, anti-corrosion, anti-pollution and durability, etc.
Principle:
The annular U-shaped groove at the end of Zhengkang stainless steel V-profile press fittings is equipped with an O-ring. When installing, insert a Zhengkang thin-walled stainless steel pipe into the end of pipe fitting and then use a specialized V-profile-press tool to produce hole shrinkage in the U-shaped groove convex, press the sockets of the pipe and fitting into hexagon, to compress the O-ring and guarantee sufficient dealing performance and joint strength.
Advantages :
Sanitation: Not easy to scale after long-term use. The water quality meet relevant sanitary standard.
Anti-corrosion: Pipe overall after solid solution treatment, the surface by pickling passivation, very durable.
High strengh: The comprehensive strength is twice that of galvanized pipe and 3 times of copper pipe.
Light weight: The weight is 1/3 that of galvanized pipe, which is particularly suitable for high-rise buildings.
Low conductivity: Low thermal conductivity, 1/25 that of copper pipe and 1/4 that of steel tube. The thermal expansion is slow.
Environmental protection: No pollutants in construction sites. No pollution to the environment.
Parameters:
Material: Stailess steel sus304, sus316 and sus316l. Can be selected pursuant to difference service conditions.
Pressure: Working pressure no more than 1.6 mpa.
Temperature: Working temperature-20--110 degree centigrade
Seal: O-ring id made of butyl rubber, which is resistant to hot water and aging. It proves safe and non-toxic in hygiene tests and can be used for drinking water and tap water, etc.
Fitting standard:DIN, JIS,DVGW
O-Ring Seal material: EPDM (black), HNBR,NBR
Payment term: TT, L/C price term: FOB,CIF,CNF.
Anneal: all stainless steel pipe fittings are annealed in inert gases before packing.
Stainless steel press fitting is the best connection for thin multiplayer all stainless steel pipe, PE(X)-Al-PE(X) multiplayer pipe and SS-PE composite pipe. Versatility of press fittings can widely use in potable water system, water supply and drainage, heating and cooling water circulation system, fire services sprinkler system, gas system and etc. Easy and fast installation with simple press tools can save time and improve job productivity and profitability.
*Related Products:V Type Tee With Male End,Tube Fittings V Profile,stainless steel dairy pipefittings.
Stainless Steel V-Profile Press Fittings
Stainless Steel V-Profile Press Fittings,Stainless Steel V-Profile Pres,V Type Tee With Male End,Tube Fittings V Profile
Zhejiang Zhengkang Industrial Co., Ltd. , http://www.chinazhengkang.com