DULL POLISHED PIPE

DULL POLISHED PIPE

Hygienic dull polished pipe refers to stainless steel tubing with a specific external finish and highly smooth internal finish, designed to meet stringent cleanliness standards in industries like food, beverage, and pharmaceuticals. This finish minimizes product adhesion and bacterial growth. 

Key Features and Standards

Dull polished pipe is produced to specific roughness averages (Ra) to ensure product integrity and ease of cleaning. 

  • Material: Typically made from high-grade stainless steel, with AISI 304L and AISI 316L being the common choices. The 316L grade is often used in more corrosive environments for its superior resistance.
  • Surface Finish:
    • External: The "dull polished" finish is an abrasive finish with a unidirectional grain, typically produced with a 180 to 240 grit abrasive. This finish (often a No. 4 finish under old standards or 2J under EN 10088-2) provides an aesthetically pleasing, easy-to-clean exterior that also helps to mask minor scratches.
    • Internal: The internal bore is crucial for hygiene. It features an exceptionally smooth finish, with a typical Ra value of less than 0.8µm. The internal weld bead is also removed (bead rolled) to eliminate crevices or "bug traps".
  • Standards: Manufactured to comply with key hygienic standards:
    • EN 10357 (the standard for stainless steel tubes for the food and chemical industry, which replaced DIN 11850).
    • BS 4825 Part 1.
    • ASTM A270.

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Code Description Price Quantity
TUBE050D 1/2"OD D/P DAIRY TUBE 316 TO DIN11850
53 In Stock for despatch
£50.90 (exc VAT) per METRE
£61.08 (inc VAT)
-
+
TUBE050D304 1/2 OD X 1.5 WALL DAIRY TUBE 304 ST/ST
Out of Stock
£25.00 (exc VAT) per METRE
£30.00 (inc VAT)
-
+
TUBE075D 3/4"OD D/P DAIRY TUBE 316 TO DIN11850
6 In Stock for despatch
£56.50 (exc VAT) per METRE
£67.80 (inc VAT)
-
+
TUBE100D 1" OD D/P DAIRY TUBE 316L TO DIN11850 1.5MM THK
116 In Stock for despatch
£51.00 (exc VAT) per METRE
£61.20 (inc VAT)
-
+
TUBE100D-304 1"OD X 1.5MM DULL POL DAIRY TUBE 304L
Out of Stock
£36.70 (exc VAT) per METRE
£44.04 (inc VAT)
-
+
TUBE125D 1.1/4" OD X 1.5 WALL DULL POL DAIRY TUBE 316L
Out of Stock
£67.10 (exc VAT) per MTR
£80.52 (inc VAT)
-
+
TUBE150D 1.1/2" OD D/P DAIRY TUBE 316L TO DIN11850 1.5MM TK
98 In Stock for despatch
£85.90 (exc VAT) per METRE
£103.08 (inc VAT)
-
+
TUBE150D-304 1.1/2"OD X 1.5MM DULL POL 11850 TUBE 304L
77 In Stock for despatch
£50.00 (exc VAT) per METRE
£60.00 (inc VAT)
-
+
TUBE200D 2" OD X 1.5MM DULL POL DIN11850 TUBE 316L
Out of Stock
£114.20 (exc VAT) per METRE
£137.04 (inc VAT)
-
+
TUBE200D304 2"OD X 1.5MM DULL POL DIN11850 TUBE 304L
5 In Stock for despatch
£67.70 (exc VAT) per METRE
£81.24 (inc VAT)
-
+
TUBE250D 2.1/2"OD X 1.5MM DULL POL DIN11850 TUBE 316L
18 In Stock for despatch
£144.10 (exc VAT) per METRE
£172.92 (inc VAT)
-
+
TUBE250D-304 2.1/2"OD X 1.5MM DULL POL DIN11850 TUBE 304L
48 In Stock for despatch
£86.40 (exc VAT) per METRE
£103.68 (inc VAT)
-
+
TUBE300D 3" OD X 1.5MM DULL POL DIN11850 TUBE 316L
15 In Stock for despatch
£167.20 (exc VAT) per METRE
£200.64 (inc VAT)
-
+
TUBE300D304 3" OD X 1.5MM DULL POL DIN11850 TUBE 304L
11.5 In Stock for despatch
£96.20 (exc VAT) per METRE
£115.44 (inc VAT)
-
+
TUBE400D 4"OD X 1.5MM POL TUBE DIN11850 TUBE 316L
6 In Stock for despatch
£183.70 (exc VAT) per METRE
£220.44 (inc VAT)
-
+
TUBE400D2MM 4"OD X 2MM DULL POL DIN11850 TUBE 316L
Out of Stock
£299.00 (exc VAT) per METRE
£358.80 (inc VAT)
-
+
TUBE400D304 4"OD X 1.5MM DULL POL DIN11850 TUBE 304L
33 In Stock for despatch
£138.00 (exc VAT) per METRE
£165.60 (inc VAT)
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