Resin Manhole Cover and FRP Manhole Cover
Resin Manhole Cover and FRP manhole cover
The biggest feature of the Resin Manhole Cover
is made of polymer composite material, without any recycling value. After the resin manhole cover is promoted and used, the problem of stealing the manhole cover and causing urban black holes will be solved. Unlike the manhole cover on the market, it is pressed out by a hydraulic press and has a high impact strength. ”
The resin composite type manhole cover is made of glass fiber and resin as a basic material, and is made of a curing agent, an accelerator, or the like as an auxiliary material. It weighs two-thirds lighter than a cast iron manhole cover and has a service life of more than 20 years, which is twice that of a cast iron manhole cover, and the price is only 80% of the cast iron manhole cover. At the same time, the manhole cover is also insulated and noise-free. The Chifeng City Product Quality Supervision and Inspection Institute conducted a load and impact strength test on the manhole cover, and found that the load capacity of the manhole cover was 24 tons, and the impact strength exceeded the ordinary manhole cover.
The resin manhole cover is a new type of manhole cover made by using renewable resin as the main raw material. This type of manhole cover has stronger corrosion resistance, better anti-theft capability and safer use, so it currently has a certain position in the market. So what are the types of resin manhole covers?
1. According to the type of pipeline, there are rainwater, sewage, water, gas, hot gas, power supply, communication, cable TV, traffic signal line, etc. This type of manhole cover is mostly set in the underground pipeline type of road engineering.
2. According to the bearing capacity, there are heavy manhole covers, mainly for the passage of municipal road traffic and heavy vehicles; and light manhole covers, mainly for public road traffic and light vehicles.
3, according to the ownership of the division, there are property rights owned by the professional pipeline company's manhole cover and property rights owned by the user's manhole cover.
4. According to the distribution range, there are underground pipeline manhole covers for urban public road traffic facilities, and underground pipeline manhole covers for units and residential quarters.
The above are several types of resin manhole covers. When purchasing a resin manhole cover, we must fully understand the applicable field to ensure the safety of the manhole cover. If you are interested in our products, please stay tuned to our website.
FRP manhole covers have become the transmission medium for many industries with its superior corrosion resistance, but it is based on what is unique to achieve its characteristics. The fiber-wound FRP product is divided into three parts: an inner liner layer, a structural layer and an outer protective layer. Among them, the inner liner layer has a high resin content, generally above 70%, and the inner surface rich resin layer resin content is as high as about 95%. By selecting the resin used for the lining, the FRP products can have different corrosion resistance when transporting liquids, so as to meet different working needs; for the occasional anti-corrosion, only the outer protective layer resin should be carefully selected, Can achieve the purpose of different external anti-corrosion.
FRP products can be made of different anti-corrosion resins according to different corrosive environments, including: m-phenyl unsaturated polyester resin, vinyl resin, bisphenol A resin, epoxy resin and furan resin, etc., depending on the specific conditions: For acidic environment, use bisphenol A resin, furan resin, etc.; for alkaline environment, use vinyl resin, epoxy resin or furan resin; for solvent type environment, use furan resin; when acid, salt, solvent, etc. When the corrosion is not very serious, a cheaper isophthalic resin can be used. By selecting different resins for the inner liner, the FRP products can be widely used in working environments such as acid, alkali, salt, solvent, etc., and exhibit good corrosion resistance.