Welding neck flanges are most widely used flanges by welding pipe to its neck part, the welding neck flanges' inside diameter is designed to match with pipe's inside diameter as marked SCH STD/80/160...or special wall thickness.

Our screw press machines can produce welding neck from 2" to 6" from 150lb to 2500lb, make them low cost and fast delivery.

he industrial processes come into die forging,and machining,we can provide a wide range of flanges,following on standards like ASME B16.5 Flange, ASME B16.47 Flange, DIN 2573 Slip On Flange, DIN 2631 Welding Neck Flange, JIS Flange 5K SOP Flange and JIS Flange 10K SOH Flange. 

ASME Flange include ASME B16.5 Flange, ASME B16.47-A Flange, ASME B16.47-B Flange, this standard system include slip on flange, blind flange, welded neck flange, threaded flange, lapped joint flange (loose flange), socket welded flange, B16.36 Orifice Flange, long weld neck flange and special flange, sizes from 1/2 inch to 60 inch, class 150, class 300, class 600, class 900, class 1500, class 2500.

About Our Company:

We started doing flange business since 1997, with new factory established in 2002 in Dingxiang-town of flange. With 280 professional workers, 40,000 square meters, the annual production capacity is 12,000, 000 ton. Our products have been exported toSouth Korea,Japan,Italy,Turkey,Germany,America,Denmark…, and got good reputation for good quality, fair price and reliable after-service.

About Certificates:

We’ve obtained certificate ISO9001, TUV/PED, API...

About Production:

About facility and workshop

Raw material, cutting and forging(ring roller, screw press machining)

Heat treatment and CNC Machining

Painting, inspection, packing and shipping

We’re ready to help you with all these products, contact us now to get your order started!