A different kind of manhole cover - fiberglass reinforced plastic manhole cover

Fiberglass reinforced plastic (FRP) manhole cover is a new type of manhole cover developed to solve the defects of steel and iron manhole cover, such as easy to rust and steal, too bulky and easy to be brittle, etc., and to improve its use function and economic and social benefits.

 

FRP composite material manhole cover is made of glass fiber and its products (glass cloth, tape, felt, yarn, etc.) as reinforcing material, and synthetic resin as matrix material, which mainly consists of unsaturated polyester resin, filler, initiator, thickener, low shrinkage additives, film molding agent, pigment and reinforcing material.

Fiberglass reinforced plastic (FRP) manhole cover is a new type of manhole cover developed to solve the defects of steel and iron manhole cover, such as easy to rust and steal, too bulky and easy to be brittle, etc., and to improve its use function and economic and social benefits.

Product characteristics and basic functions

♦Light weight, fiberglass reinforced plastic manhole cover weight is only 1/4 of iron cover, project installation and use of lightweight and flexible opening and closing.

♦Good self-locking, FRP round manhole cover and the unique constraint link structure of the manhole base, with self-locking function to prevent the manhole cover from jumping away from the manhole base after the automobile drives by.

♦High strength, FRP material tensile strength and Q235 steel equivalent, compressive strength than C30X more than twice as high, resistance to impact, vibration, fatigue, fracture performance is better than steel, iron and other materials, used as a bearing structure of the manhole cover, the strength of the safety conditions than iron manhole cover easier to meet.

♦Corrosion resistance, FRP materials are naturally corrosion-resistant, used as acid, alkali, salt, sewage and other corrosive media environment of the manhole cover, with technical and economic competitive advantage.

♦Anti-rattling, well cover in the design and manufacture, pay attention to the well cover and well ring contact surface treatment, so as to reduce the noise generated by the vehicle passing or other external forces, reduce the interference with the surrounding environment.

♦Anti-skipping, between the manhole cover and the manhole cover is added a fully elastic card spring, which fixes the manhole cover to the manhole circle, thus solving the problem of skipping of the manhole cover.

♦Anti-displacement, due to the well circle and the ground have anchoring bolts fixed, so that the inspection manhole cover in the construction, will not be due to the roller's crushing and caused by the wrong mouth of the circle of the well circle in order to achieve the standard construction.

♦Anti-theft loss, FRP products have no waste recycling value, used as a well cover can avoid the hidden danger of iron and steel manhole cover often stolen for scrap sale, thus preventing the loss of manhole cover theft caused by people, cars fall into the well or stuck in the well traffic accidents, reduce the owner's economic losses and accident liability.

Main Uses

Mainly used for municipal roads, water supply, power supply, post and telecommunications, street lights, residential neighborhoods, garden planning, oil and gas extraction, chemical production, gutter covers, sanitation and other projects.

•Heavy-duty: roads or parking sites where motorized vehicles pass through.

•Light type: green areas, access roads, bicycle paths or sidewalks where motor vehicles are prohibited.

•Ordinary type: Roads or parking sites where vehicles of vapor class 10 or below pass.

Product Performance Comparison

Projects	Cast iron manhole covers	Fiberglass reinforced plastic composite material manhole cover
Anti-theft	Recycling value, vulnerable to theft	Not stolen, no reuse value
Corrosion Resistance	Poor resistance to acid and alkali corrosion, easy to rust	Resistant to acid and alkali corrosion, no rusting
Aging Resistance	Low	High
Life Cycle	5-10 years	15-20 years
Compressive Strength	Ultimate load 36T	Ultimate load 50T
Cost	High	10-15% lower cost
Appearance Color	Monotone, not colorable	Novelty, colorable, color separation and topstitching by industry
Safety	Easily crushed as a whole, resulting in falling	The inner auxiliary elastic tendon frame, no overall risk of crushing, safe to use.
Utilization Effect	Cover, seat occlusion precision is low, easy to produce running, jumping, ringing phenomenon	High precision of cover seating occlusion, no running, jumping, ringing phenomenon
Environmental	High energy consumption and pollution	Conserve resources and go green

 

Well cover is a small matter, the responsibility is big! Choose quality products, please contact Hongpeng!