Steel Trench Grates Used
as Draining Covers in Waste Water System
Steel grating made
of black iron or galvanized provides economical and durable
solution for trench covers and drain covers. Qindelin can provide
standard trench cover gratings with frame, flange and customize
other types according to customer demands and drawings. Our
trench cover plate generally consists of the steel grating, the
angle iron frame and the embedded part. Surface treatment: Black
steel or Hot dip galvanizing.
Processing
and Welding of Trench Grating Covers:
1. High frequency automatic welding
machine is used to do welding on the hot dip galvanized gratings
and covers (except end plate welding). Melting-corrosion on the
based material is not allowed.
2.Material: By CNS SS400
steel or customized
3.Surface Treatment:
After grating is formed, the surface is by hot dip galvanization;
the thickness of galvanization is 610 g/m2.
4. End Plate Welding:
Two sides of gratings are welded on with H*6 mm flat
steel.
Welding slag is required
to be cleaned.
Features:
Attractive appearance:
Simple lines, silver surface and modern
conception.
Optimized Draining
Design: Water draining area amounts up to 83.3%, which is equal
to twice of the cast iron product.
Hot-dip Galvanization
for Trench Steel Grates: Strongly rust-proof, need no maintenance
and replacement within 30 years.
Anti-theft Design: The
draining cover and the frame are connected with chains, which is
anti-theft, safe and easy to open.
Saving Investment: Cost
less than cast iron product in the case of large span and heavy
load, and can save expenses incurred by replacement of stolen or
crushed cast iron covers.
Applications: Trench
grates are used as draining cover, gully cover and well
covers.