Lock seam perforated pipe is made by folding up the overlapping edges against each other, then folding them over in the same direction a number of times. It has flush surface outside and lock seam inside. This type perforated tubing is the popular option of fluid filtration like center tube in the filter house.

Mild steel and stainless steel are common materials of manufacturing spiral perforated tubes. For generally applications, carbon steel is available to serve. However, for corrosive work conditions, stainless steel perforated pipe is a cost-efficient choice in the long terms.

Specifications:

Material: mild carbon steel, stainless steel or as ordered;
Hole diameter: no less than 1.0mm;
Open area: up to 65%;
Thickness:0.2mm to 0.7mm;
Outside diameter:20mm to 200mm;
Length: up to 1500mm.

Applications:

Filter liquids and air, such as water, oil, etc.
Sieve different materials and remove impurities, such as in food, pharmaceutical, chemical and environmental protection industry.
As various frameworks of filter elements.
Weaken the noise.
Used for granary ventilation.

Round – 60° Staggered Center

Diameter

Center

OA

H.P.S.I *

* Holes per square inch
Calculate

Round – 45° Staggered Center

Diameter

Center

OA

H.P.S.I *

* Holes per square inch
Calculate

Round – Straight Center

Diameter

Center

OA

H.P.S.I *

* Holes per square inch
Calculate

Round End Slot – Staggered and Straight Center

Length

Width

Center w

Center l

OA

H.P.S.I *

* Holes per square inch
Calculate

Square End Slot – Straight Center

Length

Width

Center

OA

H.P.S.I *

* Holes per square inch
Calculate

Square – Straight Center

Side

Center

OA

H.P.S.I *

* Holes per square inch
Calculate

Hexagon

Diameter

Center

OA

H.P.S.I *

* Holes per square inch
Calculate