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Product

SUS304/ Teflon Coating Volume Damper

Ductwork

1. The exterior metal material is 304 or 316 stainless steel.

2. Before coating, the stainless steel substrate is checked to ensure complete welds and proper surface treatment.

3.Coating material is ETFE fluoropolymer thermoplastic resin.

4. The thickness of coating is on an average of 260μ.

5. The pin hole test performance conducted by a DC spark tester at 2.5KV/260μ to ensure a pin nole free protective coating.


Product Detail

Product Tags

agagsd

Type

Diameter
(mm)

Thickness
(mm)

Length
(mm)

Blade Material

Actuation

sus

Coated

Single Blade
Damper

100
150
200
250
300

1.0
1.0
1.0
1.0
1.0

150
150
150
225
225

sUS+Viton

(PVDF)

Quadrant Handle
or

Type

Diameter
(mm)

Thickness
(mm)

Length
(mm)

Blade Material

Actuation

sus

Coated

Single Blade
Damper

350
400
450
500
550
1.2
1.2
1.2
1.2
1.2

225
225
225
225
225

suS+Viton

(Coated)

Gear Drivel
Electric Actuatorl
neumatic Acturtor

600
650
700
750
8o0

1.5
1.5
1.5
1.5
1.5

225
225
225
225
225

(Sus)

SplitValve

600
700
800
900
1000

1.5
1.5
1.5
1.5
1.5

225
225
225
225
225

1. The part of the air duct to be painted (including the flange surface inside the pipe) must be sandblasted, the sandblasting roughness must meet the roughness of 3.0 G/S76, 40μm or more, and the residual sand particles and metal dust outside the pipe must be removed after sandblasting. Confirm whether the surface of the duct workpiece is clean and the workpiece is covered with aluminum foil.

2.100% total quality inspection (film thickness detection, pinhole detection), with film thickness tester to detect coating film thickness. The film thickness is 260±30 μm. A pinhole detector is used to detect whether the coating has pinholes. Adjust the standard detection voltage to 2.5KV, if there are needles that need to be repaired or reworked. The film thickness and pinhole test results after quality inspection should be recorded in the "Duct Coatung Quality Inspection Form".

3. After the workpiece is completed, the outside of the tube is affixed with FM certification label, QC serial number and product specification label. The flange mouth is sealed with PE plate or PP hollow corrugated board, and fixed with plastic hose tape.

4.Duct diameter over 2000mm is available on request. Duct thickness is built on SMACNA. And it also can be changed as customer’s request.

Ductwork

Our Focus
We are the founders of the future
In the next three years, it will become a professional supplier of air duct. Realize the green development of enterprises, make the sky bluer, the mountains greener, the water clearer and the environment more beautiful.


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