Specifications sewer drain covers

sanitary sewer manhole cover

sewer manhole covers

plastic sewer cover for sales

square sewer drain covers

? Product Description ?

Code	Clear Opening	Over Base	Depth	Class
202500	200	230	33	A15
202501	200	230	33	B125
202502	300	330	40	A15
202503	300	330	40	B125
202504	400	440	45	A15
202505	400	440	45	B125
202506	400	440	45	C250
202507	400	440	45	D400
202508	550	590	60	A15
202509	550	590	60	B125
202510	550	590	60	C250
202511	550	590	60	D400
202512	700	740	60	A15
202513	700	740	60	B125
202514	700	740	75	C250
202515	700	740	95	D400
202516	760	800	75	A15
202517	760	800	75	B125
202518	760	800	75	C250
202519	760	800	110	D400
202520	800	840	85	A15
202521	800	840	85	B125
202522	800	840	85	C250
202523	800	840	85	D400
202524	900	940	100	A15
202525	900	940	100	B125
202526	900	940	100	C250
202527	900	940	100	D400
202528	1000	1040	100	A15
202529	1000	1040	100	B125
202530	1000	1040	100	C250
202531	1000	1040	100	D400
202532	1325	1365	100	A15
202533	1325	1365	100	B125
202534	1325	1365	100	C250

? 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. ? ? Our Services ? We guarantee customers?3 YEARS?free replacement if any quality problems happen ? Packaging & Shipping ? packing on pallets with film wrapping
1000 sets in a 20 ft container
1500 sets in a 40 ft container ? ? 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 Manhole Covers, Artistic Manhole Covers, Water Storm Manhole Covers, Trench Drain Covers, Gully Grates, Sewerage Gratings, etc. Fiber rein forced polymer is made from unsaturated polyester resin; more than ten kinds of composite materials are mixed for pressing under the normal temperature. Because there is no metal contain, so it is completely solves the problems of being stolen.? Using the unique processing of tough fiberglass rebar for the main load bearing instead of traditional steel rebar, the loading capacity is enhanced a lot, completely rewrite the BMC processing covers low load capacity, and fail the tests abide by BS EN124. BAOLUAN products are of highly compress resistance, wear resistance, non breaking, anti-aging, which is exceed the standard of GB/T23858-2009 set by NSC. ? The company has a full set of production and inspection equipments from product design, mold development, color scheme. We have cooperated with many renowned research institutes and universities, together developed of a unique formula and processing, created the brand BAOLUAN with high quality and security, artistic features, taken its place in the front rank of domestic manhole cover industry.? The products are popular to many big or medium cities in domestic or overseas. ? Products designed to meet or exceed the standard of BS EN 124, quality is our life, we refuse to do defective products no matter OEM or ODM. Road security is always our mission; we will be continuously innovating and creating the better and better BAOLUAN. ? ? FAQ Why most of the manhole covers are round? 1. ?A round manhole cover cannot fall through its circular opening, whereas a square manhole cover could fall in if it were ? ? inserted diagonally in the hole. ?2.?Circular covers don’t need to be rotated or precisely aligned when placing them on the opening. 3.?A round manhole cover is easily moved and rolled. 4.?Human beings have a roughly circular cross-section. 5.?Round tubes are the strongest shape against the compression of the earth around them, so the cover of the tube would naturally be round as well. 6.?It’s easier to dig a circular hole. What's your advantage? ? 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. ? Can you do bigger sizes? Yes, we do, the biggest one we have done is 1350mm diameter. ? Can you OEM? Yes, sure, we can. pls send us your design draft to us, we will arrange molding. ?