Dèanadair Faucet VIGA 
O chionn ghoirid, the Nanjing Municipal Bureau of Quality Supervision released the results of the 2017 residents’ home improvement products quality spot check, a 'toirt a-steach faucets, Sinks stàilinn gun staoin, bathroom brackets and paint-free boards. The pass rate of faucets is the lowest at 67.5%, and the pass rate of faucets priced at 100 yuan and below is only 14.3%.
An ìre gun samhail de stocan fo 20$ is as high as 85.7%
Roimhe sin, the Nanjing Municipal Bureau of Quality and Technical Supervision commissioned the Nanjing Product Quality Supervision and Inspection Institute to conduct random inspections on 40 batches of faucet products sold by production enterprises, circulation areas and e-commerce platforms in Nanjing. Às deidh sgrùdadh, 27 batches were qualified and 13 batches were unqualified, le ìre pas de 67.5%.
Nanjing Quality Supervision Bureau classified the test results according to the product source and price range, and the results were eye-catching.
Tha an 40 batches of tap products sampled this time were 20 bagaichean, 19 bagaichean agus 1 batch sampled from physical stores, àrd-ùrlaran e-malairt agus companaidhean saothrachaidh, fa leth. Nam measg, the qualification rate of physical store products is the lowest at 55%; the qualification rate of e-commerce platform products is 78.9%; and the qualification rate of production enterprises is 100%.
Bho shealladh prìsean toraidh, ìre pas de thoraidhean bho 70$ and above is 100% (unqualified rate 0%), and the pass rate of products between 20$ agus 70$ tha 85.7% (unqualified rate 14.3%). The pass rate of products between 20$ agus 40$ tha 62.5% (the unqualified rate is 37.5%), agus an ìre fharsaing de thoraidhean de 100 Tha Yuan agus gu h-ìosal 14.3% (the unqualified rate is 85.7%).
2 batches of faucet metal pollutants precipitation exceeded the standard
This sampling inspection was carried out in accordance with GB 18145-2014 “Faucet Ceitmeach” agus GB 25501-2010 “Limited Value of Faucet Water Efficiency and Water Efficiency Grade”. Am measg an 13 batches de thoraidhean neo-aithnichte, the unqualified items mainly related to surface corrosion resistance, Ìre èifeachdas uisge, Èideadh agus stuthan sruthadh, am measg an cuid 2 batches of products were detected to exceed the standard of metal pollutant precipitation (luaidhe).
A bharrachd air, this sampling inspection also refers to the standard of QB/T 1334-2013 “General Technical Conditions for Faucets”, and carried out the sealing performance of the faucet after freezing for 4 uairean, 8 uairean, 12 uairean, agus 24 hours at a low temperature of -10°C. Risk monitoring. Às deidh sgrùdadh, 33 batches of faucets meet the standard requirements, with a compliance rate of 82.5%.
Mion-sgrùdadh Nì Sgrùdaidh
①Flow uniformity and water efficiency grade
Flow uniformity and water efficiency grade Among the samples sampled this time, 1 batch of water efficiency grade was unqualified, agus bha ìre pas a 'phròiseict seo 97.5%; 3 batches of flow uniformity were unqualified, agus bha ìre pas a 'phròiseict seo 92.5%. These two items are the requirements for the energy efficiency of the water tap, and the uniformity of the flow is the prerequisite for evaluating the water efficiency grade of the tap. Excessive flow of water nozzles will cause waste of water resources, which is not conducive to the implementation of my country’s energy conservation and emission reduction policies.
Resistance crìonadh ②surilface
Among the samples sampled this time, 12 batches of surface corrosion resistance were unqualified, agus bha ìre pas a 'phròiseict seo 70%. Products with unqualified surface corrosion resistance are prone to rust during use, which will not provide protection and affect the appearance and use of the product. The surface corrosion resistance of the faucet not only depends on the company’s electroplating process, Ach cuideachd bidh e a 'toirt seachad grunn thaobhan mar stuth, pròiseas tilgeadh, Pol Clachainn agus prìtreas.
③Precipitation of metal pollutants
Among the samples sampled this time, 2 batches of metal contaminants were unqualified, agus bha ìre pas a 'phròiseict seo 95%. Tha dùsgadh truailleadh meatailt co-cheangailte ri slàinte dhaoine, gu sònraichte cruinneachadh de luaidhe ann am bodhaig an duine, which can cause long-term health risks in the human body and affect the normal physiological functions of the human body. The low-grade copper grades of faucet products and the substandard production process of the enterprise are all causes of excessive precipitation of metal pollutants.
(Unqualified samples precipitated by gold contaminants)
④meaterial
Among the samples sampled this time, 7 batches of materials were unqualified, agus bha ìre pas a 'phròiseict seo 82.5%. Bidh cuid de thoraidhean a 'cleachdadh alloy zinc, a corrosive material whose price is only 1/3 of copper alloy. Tha an stuth seo furasta a chroode, chan ann a-mhàin a bhith a 'toirt buaidh air a' chiall, but also reduces the strength of the faucet, causing water leakage and cracking after a period of use. An coimeas ri aloidhean copar, zinc alloys are cheap and easy to process. In order to control costs and reduce processing links, some companies use zinc alloys instead of copper alloys to make greater profits.
⑤ Risk items (Deuchainn teòthachd)
This sampling conducted a temperature test, ‘s e sin, freezing the water nozzle at -10°C for 4 uairean, 8 uairean, 12 uairean, agus 24 hours to test the sealing performance. An dèidh deuchainn a dhèanamh, am measg an 40 batches of taps sampled this time, iomlan de 7 batches of faucets have leaked in a low temperature environment.
An-dràsta, there is no corresponding national standard for the freezing temperature value of faucets. Fo suidheachaidhean àbhaisteach, the faucet will not be frozen and cracked at a few degrees below zero, but after low-temperature freezing, due to the expansion and condensation of water in the valve core, the valve core will be squeezed and stressed. Bidh aodion aig a 'cheangal. Gus cosgaisean a shàbhaladh, some manufacturers use poor-quality brass as the casting material for the faucet. The ductility of the metal is greatly reduced, and it is easy to freeze at low temperatures and almost breaks when it is knocked.
(Sample with unqualified freeze-thaw sealing performance)
Comhairle luchd-cleachdaidh
①Avoid buying zinc alloy faucets
Zinc alloy is a corrosive material, so you should avoid this type of product when purchasing a faucet. Faodar a sgaradh a rèir a 'chasadh a-staigh an toraidh. Copper materials are generally castings, and the inner wall of the product is not very flat, while zinc alloys are injection-milled, the inner wall will be very smooth, and the inner wall has obvious separation lines. If possible, you can grind away the sample in an inconspicuous place to see the color. The color of zinc alloy is white, while copper alloy is yellow.
②Avoid buying low-cost faucets
The unqualified rate of faucets below 100 Tha Yuan cho àrd ri 85.7%, and many items that have a greater impact on consumers’ Slàinte, such as the precipitation of materials and metal pollutants, are not recommended.
③Look at the surface
Visually check whether the plating surface of the faucet is evenly glossy, and pay attention to whether there are any defects such as peeling, a 'cnagadh, burning, bottoming, Sùil, dark spots and obvious pitting. The sprayed surface structure should be fine, smooth and uniform, without defects such as sagging and bottoming. There is no burr or grit to the hand.
④Look at the thread
The pipe thread of the faucet is connected with the connecting hose or pipe. Nuair a cheannaicheas tu, visually check the thread surface for defects such as dents and broken teeth. Pay special attention to the effective length of the pipe thread.
⑤ Thoir sùil air an fhaireachdainn
Try turning the handle up, sìos, clì, agus ceart. If it feels light and does not feel blocking, the valve core is better. The main parts of a good quality faucet are made of brass. Thoir aire do thoraidhean eadar-dhealachadh a tha a 'cleachdadh stuthan allaidh agus plastaic innleadaireachd, aig a bheil beatha agus beatha seirbheis an ìre mhath bochd.
⑥ Water saving
The faucet with a bubbler saves water better. Feel the water flow with your hand when purchasing. An sruth uisge bog agus an t-seòmar beairteach (Susbaint Bubble sruthadh uisge) indicate that the bubbler is of better quality.