Manhole Nanjing factory

 Manhole commonly known as "manhole", generally located in the drainage Road Interchange, bend, diameter or slope change at the drop of water at a certain place and at a distance on the straight pipe section is to facilitate drainage subsidiary regular inspection, cleaning and dredge pipeline structures. The key part of the well using a disposable injection molded seat to adjustable joints, variable angle joints and seals, and other accessories to achieve the change in diameter and angle connections. Manhole supporting the development of injection molding covers, borehole, well blocks, pavement load through wells, wells seat role in around manholes, avoiding loading on pavement damage Manhole cover the seat with a fluctuating function, can take the initiative to adapt to the road The level of change, while the wellbore single (double) wall corrugated pipe and adjust the wellbore, can intercept the appropriate length according to the site burial depth, with great flexibility. Wellbore, into (out of) the water pipes and wells seat connected by rubber ring flexible connection, can be adapted to an angle within a small range of variation, convenient construction, good sealing performance, prevent leakage, environmental protection and energy saving. Manhole by wells seat, wellbore, seat covers or protective cover and matching piping components; check the well bore using underground drainage pipe, such as flat wall solid wall pipe, double wall corrugated pipe; Manhole covers can be PVC-U covers, FRPP complex material inspection covers; supporting pipes can UPVC reinforced pipe, FRPP composite reinforced pipe, HDPE pipe. Manhole covers Cast iron manhole covers, composite manhole covers, reinforced concrete manhole covers. Quality in line with the existing "building residential drainage plastic manholes" requirement CJ / T233-2006 of. Color is white or gray, wellbore inside and outside walls should be smooth, flat surface should not have bubbles, cracks, dents, uneven discoloration decomposition line color. Plastic bore wells seat in 15KN static load load pressure without cracking, cracks. Plastic manholes Scope: 1) Building Community (residential areas, public buildings area, plant, etc.), urban and rural municipal, industrial parks, urban renewal and other range of buried plastic drainage pipes outside diameter of not more than 1200mm, burial depth of not more than 8m plastic drainage manholes engineering design, construction and maintenance. 2) Construction of plastic drainage manholes general soil, soft soil soil, seasonally frozen soil and loess soil conditions; 3) the degree of seismic crack set of 9 degrees and 9 degrees below the region. 4) general lane ground load by total vehicle weight 15t (rear pressure 5t); Road ground fire load by total vehicle weight 30t (rear pressure 6t) design. 5) groundwater level not higher than 1.0m below ground by design.