composite polymer resin manhole cover to the drainage

  composite polymer resin manhole cover to the drainage     Description: 1. High load capacity & resilience Hardness is same as cast iron, while FRP manhole covers have overwhelming advantages on resilience recovery. They are designed to exceed A15/B125/C250/D400 load capacity, according to EN124: 1994.   2. Designed structure & pressure dispersion Arc-shaped bottom structure allows the pressure they bear disperse averagely on the whole surface. Besides, the products are made not by SMC, it was put in several layers of fiber cloth to enhance the structures. So they are stronger than SMC composite manhole covers.     3. Consequences of temporarily overloading Temporarily overloading may cause smash of concrete covers, seriously deformation, even slightly split. But this will not happen to FRP fiber cloth manhole cover.      4. Safety options There is no metal contain, directly reducing potential accident or further maintenance costs caused by thieves. Anti-slip surface offer a safe road condition even in extreme weather.      5. Light weight Compared with cast iron manhole cover, FRP manhole cover is 30% lighter. Light weight allows more loading per vehicle, more convenient transportation and economical savings. Allows a safer working condition, which single workers is enough for installation without risk of injury.      6. Long service life Strong resistance of acid, alkali, weathering, anti corrosion of water, dust, manhole covers used for gas are well sealed which prevent poisonous gas leaking. Temperature tolerance is at the range of -40°C-200°C.     7. Customer design FRP manhole covers allow customers’ innovative design, logo, or etc. we have our own design team who can also offer design work for customers.    8. No color fading The cover is not sprayed in surface but painted in whole material so that the color can keep no fading.   9. No noise The products are made anti-noises, which is popular to residential areas. 10. Nice appearance. Outstanding dying, rich colors; the cover is not sprayed in surface but painted in whole material so that the color can keep lasted; With clean, smooth surface,  it will be consistent with the lawn or ground, beautiful and functional; Elegant appearance and colorful surface. Welcome your company info and favorite color, we can freely design and produce for you in the surface     Packaging & Shipping Packing on pallets with film wrapping
Ship by sea       Our Services We guarantee customers 3 YEARS free replacement if any quality problem happens. Reply within 24 hours. Free design available.   Company Information Zhengzhou BAOLUAN Municipal Facilities Co., Ltd is a high-tech company engaged in research and development of new environmental friendly materials, production, and exporting. The main products are FRP/GRP/SMC Manhole Covers, Artistic Manhole Covers, Gully top trench covers, Trench Drain Covers, Gully Grates, Sewerage Gratings, lawn covers, recessed manhole covers, customized frp products etc. We have an overwhelming advantages over other suppliers. Our product advantages are below: 1) No scrap value which to avoid risk of theft. 2) Light weight can be easily install, maintains. 3) Load capacity can reach 900KN. 4) Quality warranties will be 3 years long. 5) Anti-slip pattern can avoid skid in harsh environment. 6) Resistant of corrosion, UV, acid, alkali, weathering, bacteria, keeps its life services of 30 years more. & our company advantages are: 1) 5 years experience of frp/grp/smc manhoel covers manufacturing and exporting, have a good command of quality control, warehouse keeping, diversified products series. 24 hours customer services on line. 2) Have 12 Hydralic machines with their load capacity ranges from 100T to 2000T. which enable us to produce very high standard of manhole covers, gully grates, lawn covers, gratings, trench covers etc. 3) We have 3 QC and more than 10 of high tecnic persons, we also have our own design department. 4) 15km away from highway, which can ensure fast delivery and costs savings.   FAQ Manhole cover FAQ 1. Q: What load capacity can you produce? A: We can produce load capacity from A15~F900, from 1.5t to 90t according to BS EN124 Standard. 2. Q: What color can be done? A: black, blue, red, yellow, grey, green etc various colors you require, also more than 2 colors can be done on cover. 3.Q:What is your delivery time? A: Lead time is 30days since the receipt of 30% advanced payment. Samples can be done within 3 days, if open new molds, need to be 15days completed. 4. Q:What is the MOQ and payment way? A: Our MOQ is 5 sets, we accept 30% payment in advance, 70% after complete the production. 5. Q: Can you make customized products? A: yes, sure, OEM &ODM are welcome, but at the beginning,we request you costs of open molds, if your quantiites is large, we can return the costs on order confirmation. 6. Q:Do you have warranties? A:  yes, we have 3 warranties, within 3 years, if our products get any quality problems, we will send free new one to replace.     Payment & Shipment P   Functions   EN124 Applications Applications of FRP/GRP/SMC manhole covers: 1.) Underground Electrical Installations: Sump pits, Traffic lights, Street lighting, Fiber optic cable ducts; 
2.) Telecommunications: Connection chambers, Water, Gas, Petrol-chemical installations. 
3.) Urban Building Solutions: Pedestrians and comparable areas, Car parking decks, Gully tops. 
4.) Road Construction: Road cover and the load is suit for all the road vehicles. How to choose a suitble manhole cover load capacity? The manhole covers load capacities can be divided into 6 catagories: Catagory 1: Class A15( Load 15KN or 1.5T - Wheel load 0.5T ) Areas where can be used by footways, pedestrains ares, side walking ways, or pedal cyclists. Catagory 2: Class B125(Load 125KN or 12.5T- Wheel load 3T) Areas where can be used by footways, pedestrians areas, car parks, driveways, etc. Catagory 3: Class C250(Load 250KN or 25T - Wheel load 5T) Roads for relatively slow moving traffic, i.e. minor residential, cul-de-sacs, pedestrian precincts and yards. Catagory 4: Class D400(Load 400KN or 40T - Wheel load 11.5T) Areas such as power stations, carriageways, hard shoulders, parking areas for all vehicle types. For high density traffic conditions we recommend the use of a vibration resistant locking system. Catagory 5: Class E600(Load 600KN or 60T - Wheel load 20T) Suitable for some airfield pavements, dockyards,other areas where single slow moving wheel loads up to 20T maybe encountered. Catagory 6: Class F900(Load 900KN or 90T - Wheel load exceed 20T) Aircraft hardstandings and taxiways at civil airports, container ports and dockyards where individual wheel loading exceed 20T)   Installation Instruction of Installation – BAOLUAN Manhole Cover 1. Transport During the transportation of manhole cover, it should avoid massive strike of uncertain part. Manhole cover should adjust correctly to the frame.    2. How to choose the dimension of manhole cover? The clear opening (co in short) of the frame should be equal to the manhole co, or larger than the manhole diameter, which can avoid the part of the frame hang in the air, the wrong transfer of loading pressure.     Measures of remediation:   
Notice: the basic level of the manhole should be compacted and level to avoid subsides of the manhole cover after massive pressure. The masonry wall should be integrity, the close up should be uniform.   3. The frame should be fastness well. The frame bottom should be casting the concrete C25 or even better, the frame around concrete width (w) should be more than 300mm.the bottom (D) concrete should be more than 200mm.
  4. The manhole cover surface should be highly consistent with the ground. Estimation error range  < ±2mm
  5.  Asphalt pavement construction program Fasten the frame by pre-cast concrete (c25, c30, c35), and maintain the pre-cast concrete more than 72 hours, then pave the asphalt. The cover frame should avoid the large-scale construction machinery rolling on.  
A. To support and fasten, there must be 10-20mm cement paste under the frame. B. The frame should be surrounded by concrete with 300mm width, and 200mm height. C. The frame can be 20mm above the ground for asphalt pavment. 1.) Manhole. Manhole co should be equal or less than the frame co. 2.) Concrete base. 3.) Asphalt material     6. Manhole cover right side up   Reverse side up will easily broken and reduce the loading capacity.
  7. Expansion backup gap. If the cover or grate have no frame, we should guarantee the expansion backup gap.(total gap width normally be 3-5 mm.)