1.  SMC manhole covers have smooth and beautiful appearance, with many optional colors (black, gray, green, yellow, red). The cover surface is designed to be anti-skid and with delicate patterns and lines, product surface can be customized design.
2.  Lightweight. The weight of glass reinforced plastic manhole cover is 1/3 that of a cast iron manhole cover or cement manhole cover. So that SMC manhole cover is easy for one man operation, more convenient for daily inspection and maintenance, also can reduce the risk of labor injury.
3.  Fiberglass has excellent toughness and are not easy to crack. The load bearing capacity can be graded up to A15/B125/C250/D400/E600/F900 according to standard of EN 124-1:2015, EN 124-5:2015.
4.  Anti-corrosion and anti-aging, resistant to any harsh weather conditions. The properties of the fiberglass themselves give the products excellent high and low temperature resistance (the products can be used at -50~160℃), chemical resistance (acid, alkali, salt, organic solvent, etc.) and dimensional stability (very low coefficient of thermal expansion: 12*10-6/℃).
5.  Compared to metal, the SMC material is with remarkable insulation and excellent dielectric performance. Through the improvement of the formula so that the product has excellent anti-static performance and fully meet the electronic industry SJ/T11159-1998 floor covering and assembly floor electrostatic performance requirements. Also, composite material is non-rusty, no scrap value and less noise. 
6.  Long service life. Through the use of high performance resin, glass fiber and special production process formula, to ensure the resin penetration in glass fiber, greatly enhance the internal adhesion, so that the product has a high fatigue strength, under the action of a given effective load and frequency, its service life is usually not less than 30 years.
7.  Environmental-friendly. The raw materials used are halogen-free, SMC is non-toxic products. The reasonable structural design solves the noise problem caused by the impact between the cover and the frame. 
8.  Compared with cast iron manhole covers, SMC is a material that penetrates electromagnetic waves almost without changing the properties (including energy) of electromagnetic waves, so it can be widely used in the telecommunication industry.

Product information

Specification

Unit: mm
Diameter is 900 mm, loading class is EN124 D400, designed for fuel station with double sealing including a sealed central cover on the main cover. 

Features

Anti-Slip surface

DSD Manhole Cover's top surface material boasts superior slip-resistance in wet, dry or worn conditions for increased safety.

Watertight Seal

Integral covers create an airtight seal between their frame and cover to maintain watertight performance.

With Central Inspection Port Cover
There is a locking sealing inspection port cover with an opening of 350mm (13.8") at the centre of this manhole cover for waterproof inspection purposes, providing access for inspection. 

Material
Frame and inspection cover are constructed of SMC FRP composite material. Removable side sealing structure utilizes corrosion-resistant EPDM rubber while removable sealing handle adopts aluminum alloy. Three M10x40 hexagon socket head locking screws made from 304 stainless steel are utilized, as is its locking mechanism comprising aluminum alloy and 304 stainless steel components. 

Lockable

Lockable access covers can not only increase site and location security but can also protect against theft and malicious damage.

Customized LOGO available
DSD Manhole Cover has an experienced engineering department which allows them to make custom designed moulds according to customer size, pattern, color, load limit load logo function requirements.

Advantage

Application

Production

Packing

Transport

1.Standard plywood case, its compressive strength and bearing quality is better

2.The board area is bit, the soil structure is good, it is better in leakproofness and waterproof

3.When importing, the plywood case is with fumigation-free, the procedure is simple.

4.Delivery Detail: within 7-15 days after received your payment