Pipe Flanges & Gaskets

Pipe flanges and sealing gaskets specified by nominal size DN, pressure rating PN, connection type, facing and material. Enter by product form first, then filter SKUs by standard, diameter, length, grade, material and finish.

Product Types

Plate Slip-On Flanges

Plate Slip-On Flanges

Shop Specs

Plate slip-on steel pipe flanges, PN series (GB/T 9119 / GB/T 9124.1). Select by DN × PN × material, paired with flat or spiral-wound gaskets. Carbon steel, 304 and 316L made to order, DN15–DN300; WRAS / NSF 61 certification available on request (subject to certifying body approval) for potable-water and food-contact service.

GB/T 9119 PN10GB/T 9119 PN16
Nominal size DNPressure rating PNConnection type
DN15

60 SKUs

Weld Neck Flanges

Weld Neck Flanges

Shop Specs

Weld neck steel pipe flanges, PN series (GB/T 9115 / EN 1092-1 Type 11). Tapered-hub butt-weld construction for cycling duty and critical media. Carbon steel, 304 and 316L made to order, DN15–DN300, paired with spiral wound gaskets; WRAS / NSF 61 certification available on request (subject to certifying body approval) for potable-water and food-contact service.

GB/T 9115 PN10GB/T 9115 PN16
Nominal size DNPressure rating PNConnection type
DN15

60 SKUs

Non-Metallic Flat Gaskets

Non-Metallic Flat Gaskets

Shop Specs

Non-metallic flat gaskets for pipe flanges (GB/T 9126, IBC type) in non-asbestos fibre sheet, NBR and PTFE. Standard 2.0 mm thickness, matched to flange DN × PN.

GB/T 9126 PN10GB/T 9126 PN16
Nominal size DNPressure rating PNConnection type
DN15

60 SKUs

Spiral Wound Gaskets

Spiral Wound Gaskets

Shop Specs

Spiral wound gaskets for pipe flanges (GB/T 4622, EN 1514-2 dimensions). Metal-strip and filler winding outperforms sheet gaskets under temperature and pressure. 304 + flexible graphite made to order; 316L / PTFE combinations quoted to order.

GB/T 4622
Nominal size DNPressure rating PNConnection type
DN15DN20

80 SKUs