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Brand Name : | CHENG HE |
Model Number : | Q195 Q235 Q275 Q345 SS304 316 304lL 316L |
Certification : | ISO9001 |
Payment Terms : | D/A, L/C, D/A, D/P, T/T, Western Union, MoneyGram |
Supply Ability : | 100 Tons per Day |
Delivery Time : | 15-20DAYS |
Low Carbon Galvanised Trench Grate , Silver Channel Drain Grate
Cover
Description:
Drain cover is usually used in the side of the road and swage
treatment plant, it is for water drainage.Trench Drain Cover Gratings are steel lattice panels formed with
simple lines, secured with hinged lid and connection. Ideal
replacement drainage covers for conventional cast iron materials.
Suitable for light type and large span heavy loading environment.
Widely used in sewage treatment system in urban roads, squares,
gardens, docks, airports, parking lots, roads, railways, industrial
engineering and other types of industrial buildings.
Trench cover is another usage of steel grating, it's usually used
in drainage system, like sewage treatment plant, port drainage
channels, and plaza drainage system. As our products are mostly hot
dip galvanzied, it can resist corrision and rust. Moreover, we can
produce different size of steel grating for customers according to
different load capacity requirement, shape request, etc.
We produce three kinds of steel gratings, they are Plain Style
Steel Grating, Serrated Style Steel Grating
and I Bar Type Steel Grating.
We can design and manufacture standard steel grating and in
customized shapes per client's
requirements.
They are widely used in steel structure platforms, stair treads,
sidewalks,drainages and well covers etc.
Feature:
Appearance: simple lines. Silver exterior, modern trends.
Best drainage: leakage area of 83.3%, more than double the cast
iron.
Hot-dip galvanizing: rust-proof and strong, maintenance and
replacement.
Security design: box with hinged lid and connection, security,
safe, easy to open.
Saving investment: large span. When overloaded, the lowest ratio of
iron and saves replacement costs stolen, then crushed.
High strength: strength and toughness is much higher than cast
iron, can be used for terminals, airports and other large span and
heavy load environment.
Specifications and more: meet different environment and loading
requirement. Span, the desired size and shape.
We design and manufacture many kinds of steel gratings, they are
Plain Style Steel Grating, Serrated Style Steel Grating, I Bar Type
Steel Grating and other gratings. They are widely used in steel
structure platforms, stair treads, sidewalks, drainages and well
covers etc. We also supply standard steel grating and in customized
shapes per client's requirements.
1) Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 20
x 3 to 100 x 10;
2) Bearing Bar Pitch (center to center):
12.5, 15, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32,
80, 100 mm etc, also be according to client's requirement but 30,
40, 60mm are recommended.
America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'',
1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x
1/4''(19-w-4) and so on.>
3) Cross Bar Pitch (center to center):
38, 50, 76, 100, 101.6mm etc, also be according to client's
requirement and 50, 100mm are recommended, America standard is
available.
4) Material:
Mild Steel (Low Carbon Steel ASTM A36 or Q235) , Stainless Steel
304 or 316
5) Surface Treatment:
Untreated, Painting or Hot dip Galvanizing
6) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS.
Common specifications:
Steel Grating Standard | Steel Standard | Galvanized Standard |
China standard | YB/T 4001.1-2007 | GB/T 13912-2002 |
USA standard | ANSI/NAAMM(MBG531) | ASTM(A123) |
U.K.standard | BS4592 | BS729 |
Australia standard | AS1657 | AS1650 |
Application
1. Widely used in shipbuilding, harbor, oceanographic engineering,
building, paper mills, cement plant, medicine, spinning and
weaving.
2. Is applied in food stuff factory, transportation, municipal
administration, parking lot , etc.
3. Also used by various plants such as electric power,
petroleum,chemical industry.
Standard size trench cover details
NO. | Bearing bar pitch | Cross bar pitch | Specification of bearing bar load( width × thickness ) | |||||
20×3 | 25×3 | 32×3 | 40×3 | 20×5 | 25×5 | |||
1 | 30 | 100 | G203/30/100 | G253/30/100 | G323/30/100 | G403/30/100 | G205/30/100 | G255/30/100 |
50 | G203/30/50 | G253/30/50 | G323/30/50 | G403/30/50 | G205/30/50 | G255/30/50 | ||
2 | 40 | 100 | G203/40/100 | G253/40/100 | G323/40/100 | G403/40/100 | G205/40/100 | G255/40/100 |
50 | G203/40/50 | G253/40/50 | G323/40/50 | G403/40/50 | G205/40/50 | G255/40/50 | ||
3 | 60 | 50 | - | G253/60/50 | G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 |
NO. | Bearing bar pitch | Cross bar pitch | Specification of bearing bar load( width × thickness ) | |||||
32×5 | 40×5 | 45×5 | 50×5 | 55×5 | 60×5 | |||
1 | 30 | 100 | G325/30/100 | G405/30/100 | G455/30/100 | G505/30/100 | G555/30/100 | G605/30/100 |
50 | G325/30/50 | G405/30/50 | G455/30/50 | G505/30/50 | G555/30/50 | G605/30/50 | ||
2 | 40 | 100 | G325/40/100 | G405/40/100 | G455/40/100 | G505/40/100 | G555/40/100 | G605/40/100 |
50 | G325/40/50 | G405/40/50 | G455/40/50 | G505/40/50 | G555/40/50 | G605/40/50 | ||
3 | 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 |
Type of saddle clips
Proper grating specifications | |||
A-20 | B-20 | C-20 | Bearing bars at 20mm pitch |
A-25 | B-25 | C-25 | Bearing bars at 25mm pitch |
A-30 | B-30 | C-30 | Bearing bars at 30mm pitch |
A-40 | B-40 | C-40 | Bearing bars at 40mm pitch |
A-60 | B-60 | C-60 | Bearing bars at 60mm pitch |
Process flow
(1) materian
(2) pressure welding
(3) cutting
(4) welding of ends bar
(5) surface treatment
(6) final shipment
Tolerance of grating steel
The allowed deviation of length is +0/-5mm, while the allowed
deviation of width is +/-5 mm.
The non-perpendicularity of bearing bar is allowed no more than 10%
of width of bearing bar.
Cross bar surface should not surpass bearing bar surface 1mm,
beginning & end of cross bar should not
surpass the end surfaces of two sides of grating 2mm.
Product Picture
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