Flange, Flanges, and Pipe fittings direct from the manufacturer.

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In less than 5 minutes you can submit your next flange or pipe fitting request and receive free quotes from certified manufacturers. Start purchasing direct... Flange Direct!

Our network of certified Flange and Fittings manufacturers will reply to your Request for Quotes with competitive bids. You will have the opportunity to choose the manufacturer that best suits your company's needs. Submit a Request for Quote Today!

Flange and Fittings Manufacturers:

Flange Direct is an international sales platform for flange and fittings manufacturers. As a certified Partner of Flange Direct, your company will receive Request for Quotes from flange and fittings buyers worldwide, directly to your email.

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Flange Direct is an international organization dedicated to assisting businesses worldwide in the sourcing and purchasing of flange, pipe fitting, and related products. We offer a full-service purchasing platform from a free quote all the way to delivery. We combine our top quality, cost-effective manufacturing plants in Asia with world class financial support from a top international bank, and huge international group buying power to offer the best purchasing experience possible.

Finally, a way for companies to buy flanges overseas from an international certified flange manufacturer. Buy flange, pipe fittings, and valves in larger quantities without all of the cash payments up front and unknown risks involved. Now, with Flange Direct, you can use our resources, save time and money, and feel secure when buying from Asia. You can enjoy the exact same payment terms as you are used to receiving. For a free quote on Flanges, pipe fittings or answers to any flange industry related topics join Flange Direct today and benefit from our innovative network that is revolutionizing the flange and pipe fitting industry.

Flange Types:

ANSI Flange
ASME Flange
API Flange
DIN Flange
JIS Flange
AWWA Flange
Socket Weld Flange
Threaded Flange
Blind Flange
Weld Neck Flange aka Welding Neck Flange
Slip On Flange aka Slip-On Flange
Lap Joint Flange aka Lap-Joint Flange
Orifice Flange
Stainless Flange aka Stainless Steel Flange
Steel Flange
Carbon Flange aka Carbon Steel Flange
Pipe Flange
Iron Flange
Long Weld Neck Flange aka Long Welding Neck Flange
Industrial Flange

ANSI Flanges
ASME Flanges
API Flanges
DIN Flanges
JIS Flanges
AWWA Flanges
Socket Weld Flanges
Threaded Flanges
Blind Flanges
Weld Neck Flanges aka Welding Neck Flanges
Slip On Flanges aka Slip-On Flanges
Lap Joint Flanges aka Lap-Joint Flanges
Orifice Flanges
Stainless Flanges aka Stainless Steel Flanges
Steel Flanges
Carbon Flanges aka Carbon Steel Flanges
Pipe Flanges
Iron Flanges
Long Weld Neck Flanges aka Long Welding Neck Flanges
Industrial Flanges

Flange Direct supplies International Standard Code Industrial flanges for the Petrochemical, Construction, Waterworks, and other industries. We manufacture and supply ANSI, ASME, API, AWWA and other standard pipe flanges in common flange materials such as carbon, stainless, alloys and chrome steel. Weld Neck flange, Slip on flange, Blind flange, Threaded flange, Socket Weld flange, Lap Joint flange, Orifice Flanges and more in sizes 1/2" to 200" or even customs shapes and sizes.

Weld Neck or Welding Neck Flanges:
The weld neck flange is normally referred to as the "high hub" flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange. The welding neck flange is the best designed butt-welded flange of those currently available because of its inherent structural value. It is expensive because of the design.

Threaded (Screw) Flanges:
The threaded flange is similar to the slip-on flange, but the bore is threaded. Its chief merit is that it can be assembled without welding, explaining its use in low pressure services at ordinary atmospheric temperatures and in highly explosive areas where welding create a hazard.

Slip On (Slip-On) Flanges:
The slip-on flange has a low hub because the pipe slips into the flange prior to welding. It is welded both inside and out to provide sufficient strength and prevent leakage. Slip-on flanges are all bored slightly larger that the O.D. of the matching pipe. They are preferred over welding neck flanges by many users due to their lower initial cost, but final installation cost is probably not much less than that of the welding neck flange because of the additional welding involved.

Lap joint (Lap-Joint) Flanges:
The lap joint flange is practically identical to a slip-on flange except it has a radius at the intersection of the bore and flange race. This radius is necessary to have the flange accommodate a lap joint stub end. Normally, a lap joint flange and a lap joint stub end are mated together in an assembly system.

Socket Weld or Socket Welding Flange:
The socket welding flange is similar to a slip-on flange except it has a bore and a counter bore dimension. The counter bore is slightly lager than the outer diameter of the matching pipe, allowing the pipe to be inserted into the flange similar to a slip-on flange. The diameter of the smaller bore is the same as the inner diameter of the matching pipe. A restriction is built into the bottom of the bore which sets as a shoulder for the pipe to rest on. This eliminates any restriction in flow when using a socket welding flange.

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