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JACOB TUBING SYSTEMS
System Overview
Construction Materials Used

Mild Steel
material DC 04 (ST 1403)
material DC 01 (ST 1203)

Powder Coating
Powder coated inside and outside 2 ¼” – 25” (DN 60-630 mm). The powder coating is electrostatically conductive. All of the raw materials used in our standard powder coating, color pebble grey, similar to RAL 7032, comply with the FDA requirements for direct contact with food (e.g. regulation 21 CFR175.300 “Resinous and polymeric coatings”).

Coating thickness on the outside: Powder coating as primer with an average layer thickness of 55 µm. Temperature resistance: Powder coating properties are practically stable between -76°F to 248°F (-60°C to +120°C).

Layer thickness on the inside: The surface is optically covered. The coating on the inside is only necessary to provide temporary corrosion protection in storage and transport conditions until the products have been installed.

Priming (Spray Painted)
Inner and outer priming, color pebble grey, similar to RAL 7032.

Primed surface finish is identified in the catalog. Diameters of > 25” (> 630 mm) are primed in the standard quality. Powder coating also available on request. Tube components with inside uncoated are available at cost.

Final Coating for modular tubing systems (RAL color chart, external, on request)
Inner and outer priming, color pebble grey, similar to RAL 7032.

Total thickness of coating (including primer):
Approximately 80 µm.
Conductivity on request, at a surcharge.
Alternatively spray painted, on request.

Hot-Dip Galvanized acc. To DIN EN ISO 1461
Average coating thickness (minimum value) depends on the thickness of the steel:
16 gauge (1.5 mm): 45 µm
≥ 16 gauge (≥1.5 mm) to ≤ 11 gauge (≤ 3 mm): 55 µm
>11 gauge (> 3 mm) to ≤ 3 gauge (6 mm): 70 µm.
Withstand temperature up to 392°F (200°C).
Galvanic method according to DIN 50961.
Coating thickness approx. 10 µm.
Withstand temperature up to 248°F (120°C).

Stainless Steel
material 1.4301 (X5CrNi18-10)
AISI 304 (V2A) (1.4037 [X2CrNi18-9]
AISI 304L, V2A) surface Cr-Ni-blasted.
Temperature resistance up to 572°F (300°C).
As well as material
1.4571 (X6CrNiMoTi17-12-2)
AISI 316Ti (VA4) (1.4404 [X2CrNiMoTi17-12-2]
AISI 316L, (V4A). Available pickled and pasivated.
Prices V4A on request.

Compliannce 1935/2004 (EC) and FDA acc. To DIN EN ISO 1461
Jacob's stainless steel products made of 1.4301, 1.4571 or comparable grade steel comply with the criteria laid down in the "EU guidelines on metals and alloys used as food contact materials" (13.02.2002) issued by the Council of Europe. They are suitable and approved for use in contact with food, depending on the corrosiveness of the medium.

Tolerances
Tube diameter and roundness – DIN EN 10296-1.
Lengths and angles – DIN ISO 2768-1 – tolerance class V.
Exclusions: segments and spouts with inclination, angle tolerance ± 1°. The wall thickness can be amended for specially drawn or cut components.

Connections
Unless otherwise mentioned, the tube components have 3 gauge (6 mm) flanged ends for pull ring connections.

Diameters 2.25" (60 mm), 3" (80 mm), 5.5" (140 mm), and 9" (224 mm) are rarely used in areas handling bulk goods, certain wall thicknesses, tube segments and components, such as two-way valves, are not available in these diameters.

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