FRP composite manhole cover for electric industry

Manhole cover features:

1. High load capacity and resilience. BS EN124:1994.

2. No color fading, Anti-UV, acid, alkali, weathering resistance.

3. Designed structure & pressure dispersion.

4. Consequences of temporarily overloading.

5. Long service life for more than 30 years.

6. Light weight. Easy maintenance.

7. Water proof, lockable if needed.

8. Safety options, Anti-theft.

9. Shock proof, low noise.

10. Customer design.

Manhole cover performance parameter:

1)Longitudinal strength:250-600Mpa

2)Compressive strength:300-600Mpa

3)Stretch modulus:25-35Gpa

4)Break elongation ratio:1.3-10.0%

5)Bending strength:700-1400Mpa

6)Curving module:25-35Gpa

7)Poisson-ratio:0.35

8)Relative density:1.11-1.15

9)Water-absorptive(24h):10-30mg

10)C250(can load 25tons) D400(can load 40tons)

11)Volume resistivity:1x(1012-1014)cm

12)general application temperatures in -40~120°C

Brand Name	BAOLUAN
Application	Green Belt, Sidewalk, Pedestrian, driveway, highway, chemical, telecom, electricity industry
Surface Treatment	Anti-Slip, anti-UV
Technique	mould pressing
Dimensions	220mm-1350mm dia as well as square manhole from 500mm-1500mm
Material	FRP/SMC/ BMC
Shape	round, square, rectangular or customize.
Size	customized
Color	black, grey, green,yellow, orange and etc
Weight	half weight of cast iron manhole cover
Working Temperature	-40°C-200°C
Service Life	more than 30 years
Working Condition	Anti Corrosion, Anti uv, anti acid and alkali, rusts etc.
Conduction	Non-electricity conduction and non-heat conduction
Noise	Less noise and lower vibration
Specifications	1. SMC/BMC material
	2. round and square shape
	3.A15,B125,C250,D400,E600,F900 class
	4. long use life
Delivery Time	Within 30 days after get the advanced payment.
Packing	wooden pallet, carton,wooden case and we can also as per customer's request

FRP MANHOLE COVER SIZES:

Item	Clear Opening	Cover Size	Frame Size	Cover Thickness	Loading Class
BLA-MR550	Ø550mm	Ø620mm	Ø690mm	25mm	A15/B125/C250/D400
BLA-MR600	Ø600mm	Ø670mm	Ø740mm	25mm	B125/C250
BLA-MR601	Ø600mm	Ø690mm	Ø740mm	52mm	D400/E600
BLA-MR630	Ø630mm	Ø700mm	Ø750mm	27mm	C250
BLA-MR675	Ø675mm	Ø757mm	Ø805mm	52mm	D400
BLA-MR700	Ø700mm	Ø770mm	Ø840mm	35mm	B125/C250
BLA-MR701	Ø700mm	Ø770mm	Ø840mm	50mm	D400/E600
BLA-MR800	Ø800mm	Ø870mm	Ø940mm	35mm	B125/C250
BLA-MR801	Ø800mm	Ø870mm	Ø940mm	65mm	D400/E600
BLA-MR900	Ø900mm	Ø970mm	Ø1040mm	30mm	B125/C250
BLA-MR901	Ø900mm	Ø970mm	Ø1040mm	65mm	D400/E600

FRP GULLY GRATING SIZES:

Item	Clear Opening	Cover Size	Frame Size	Cover Thickness	Loading Class
BLA-WG2343	230x430mm	300x500mm	370x570mm	35mm	A15/B125/C250/D400
BLA-WG3161	310x610mm	380x680mm	450x750mm	35mm	A15/B125/C250/D400
BLA-WG3353	330X530mm	400x600mm	470x670mm	35mm	A15/B125/C250/D400
BLA-WG3868	380x580mm	450x750mm	520x820mm	35mm	A15/B125
BLA-WG3869	380x680mm	450x750mm	520x820mm	35mm	C250/D400

Application of manhole cover

a. Underground Electrical Installations: Draw pits, Traffic lights, Street lighting, Fiber optic cable ducts;
b. Telecommunications: Connection chambers, Water, Gas, Petrol-chemical installations.
c. Urban Building Solutions: Pedestrians and comparable areas, Car parking decks, Gully tops.
d. Road Construction: Road cover and the load is suit for all the road vehicles.

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)

Our company services:

1. On time delivery

2. We keep 3 years of product warranties.

3. Standard high quality products manufacturing.

4. Any requests will get our reply within 24 hours. We couldn't promise that we can successfully solve every problems, but we will keep you in touch for every detail until we success.

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