Sand Trap Louvers - optimain.ae Trap Louvers.pdf · OSTL 300 SERIES Sand Trap Louvers Improving...

OSTL 300 SERIES

Sand Trap Louvers

Model : OSTL GI 341 Description:

OPTIMA make Sand Trap Louver is used as pre-filter for the protection of air

conditioning plants in area exposed to extreme levels of industrial pollution. It has a

high degree of separation capability of sand and large dust particles, even in case of

high dust concentrations. The vertically arranged sections and holes for sand drainage

ensure the sand trap louver is self-cleaning and maintenance-free.

The STL is designed to separate large particles at low air velocities, thus avoiding

excessive dust loading of conventional filters. Its not intended as a substitute for

conventional supply air filtration plant. For bigger sizes, several sections can be

combined to provide any combinations of overall width W or height H.

STL with H 1950 mm to 3900 mm are split on height and supplied with additional

sand chute, loose for fitting on site by others. The additional support for

reinforcement and assembly of the sand trap louvers with W 1950 mm to 3900 mm

are also split and supplied with a loose channel section to cap the vertical joint,

channel to be fitted on site by others.

Single Section Sizes Performance Data - The filtration performance is dependent on

the dust type and the velocity of the air .

APPLICATION: The sand trap louver is used at the fresh air inlet duct of the air handling unit. It can

lower the dust loading of conventional filtration as it is designed to separate large size

sand particles at low to medium speeds. It is also fitted with a bird screen mesh

protect against the unwanted objects.

The sand trap louver is a self emptying system. It has a set of holes at the bottom face

of the casing to discharge separated sand particles.

OUT STANDING FEATURES: Designed for intake applications to separate sand from intake air.

A typical efficiency / Performance data is shown in Fig. enclosed.

Provided with self emptying sand drain holes from the base.

Choice of either galvanized steel or aluminum construction.

Variety of Bird and Insect Screen.

Sand Trap Louvers

Improving your environment

Optima International LLC PO Box 115858

Deira, Dubai, UAE

Phone: +971 42949607

Fax: +971 42949608

Web: www.optimain.aeE-Mail: [email protected]

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OSTL 300 SERIES

Sand Trap Louvers



Deira, Dubai, UAE

Phone: +971 42949607

Fax: +971 42949608


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Model OSTL GI 341 STANDARD MATERIALS AND CONSTRUCTION: Frame : 1.2 mm thick GI steel sheets G-90, Zinc coating Z-275 as per ASTM653

Standard

Blades : 0.9 mm to 1.2 mm thick GI steel sheets G-90, Zinc coating Z-275 as per

ASTM653 Standard

Assembly : Mechanically fastened with GI rivets of size 4.8 mm x 12 mm.

Bird Mesh : x x 0.051diameter wire OR 12 mm x 12 mm x 1 mm diameter wire

GI mesh PVC coated

Finish : Mill Finish or Powder Coated.

OPTIONS: Powder Coated or Spray paint Finish Variety of Bird and Insect Mesh. Options in thickness of GI material up to 2 mm Can be factory supplied with as a special assembly of Wire Mesh, VCD, Sliding

AL Filter (detachable).

DIMENSIONS: Width W and Height H are opening dimensions. STL is provided with approximately undercut. Shipping weight is approximately 4 lbs/sq.ft. STL sizes : Standard sizes are as below. Other sizes are optional. Min. size panel = 12 W x 10 H Max. Single Panel = 96 W x 48 H

OSTL - GI 341 Sections : Standard sections for STL are shown. Other sections supplied as optional

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Model: OSTL GI 341

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140

OSTL 300 SERIES

Sand Trap Louvers



Deira, Dubai, UAE

Phone: +971 42949607

Fax: +971 42949608


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Model OSTL AL 341 STANDARD MATERIALS AND CONSTRUCTION:

Frame : 1 mm thick nominal; 6063-T6 extruded aluminum alloy. Conform to BS1474

Blades : 1 mm thick nominal; 6063-T6 extruded aluminum alloy. Conform to BS1474

Assembly : Mechanically fastened with AL Rivets 4.8 mm x 12 mm.

Screen : x x 0.051 inch diameter wire OR 12 X 12 X 1 mm AL coated wire

Finish : Mill Finish or Powder coated

OPTIONS: Powder Coated or Anodized Finish Variety of Bird and Insect Screen. Options in thickness of extruded Aluminium section up to 2 mm Can be factory supplied with as a special assembly of Wire Mesh, VCD, Sliding AL

Filter (detachable).

DIMENSIONS: Width W and Height H are opening dimensions. STL is provided with approximately undercut. Shipping weight approximately 4 lbs/sq.ft. STL sizes: Standard sizes are as below. Other sizes are optional. Min. size panel = 12 W x 12 H Max. Single Panel = 60 W x 60 H

OSTL- AL 341 Extruded Sections : Dimensional Tolerance as per EN: 12020-2-2001, EN 755-9-2001

Heat Treatment : Webster Hardness # 11-13, Solution heat treated and age hard-

ened.

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Model: OSTL AL 341C

(With Sand Chute)

OSTL 300 SERIES

Sand Trap Louvers



Deira, Dubai, UAE

Phone: +971 42949607

Fax: +971 42949608


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Assembly Sketches: VERTICAL SECTION HORIZONTAL SECTION

SINGLE SECTION WITH SAND CHUTE MULTIPLE SECTION WITH SAND CHUTE

OSTL 300 SERIES

Sand Trap Louvers



Deira, Dubai, UAE

Phone: +971 42949607

Fax: +971 42949608


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PRESSURE DROP:

Data for inlet application with rear duct or plenum connection

SAND REMOVAL EFFICIENCY:

OSTL 300 SERIES

Sand Trap Louvers



Deira, Dubai, UAE

Phone: +971 42949607

Fax: +971 42949608


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Particles Size

Range at 1.0 m/s at 2.0 m/s

350 - 700 90 70

75 - 700 60 approx. 30

Filtration Efficiency in %

The filtration performance is dependant on the dust type and the

velocity of the air.

PERFORMANCE DATA:

SELECTION EXAMPLE:

For normal operation conditions the sand trap louvers should be rated for a face velocity of approximate 1.0 m/s

Volume Flow with a face velocity of 1.0 m/s : 2430 l/s (8750) Cu.m. /h

Area of louver required : approx. 2.4 M. Sq.

Dimensions selected:

Width : W = 1800 mm

Height : H = 1350mm

Pressure drop : approx. 30 Pa

Selection:

OSTL 300 SERIES

Sand Trap Louvers



Deira, Dubai, UAE

Phone: +971 42949607

Fax: +971 42949608


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FRESH AIR INTAKE SYSTEM WITH SAND TRAP LOUVER

Sand Trap Louvers - optimain.ae Trap Louvers.pdf · OSTL 300 SERIES Sand Trap Louvers Improving...

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