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Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.

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Weldoflange, Nipoflange

Weldoflange, Nipoflange

Nipoflange Definition and Details

The weldoflange and nipoflange is a combination of a welding neck flange and a supposedly weldolet or nipolet. The 2 components are manufactured in one piece, and not welded. These flanges are primarily in branchconnections.
On the website of Promat BD you can find more information about the various performances, dimensions etc.. Furthermore, they have an expanded range of special flanges, fittings and branch connections.
A nipoflange is used in the pipe industry like a weldolet or a nipolet for a 90° branch connection. A nipoflange is a combination of weldolet, nipolet and flange.

Two different pipe branch connections

On the run pipe side a nipoflange is designed like a weldolet. That means the branch connection on the run pipe side is a welding connection. On the other side there it has a flange connection. The flange connection can be designed according to customers requirements (acc. To DIN or ANSI).

Forged material
A nipoflange similar to ANSI B 16.9 or MSS-SP 97 is manufactured from forged material. That means a nipoflange is a forged fitting without welding seam.

WAZ (acceptance test certificate)
Of course, you may obtain a standard cert. 3.1 with each delivery. Upon request, we are able to deliver a cert 3.2 (normally TüV or other inspection institutions). In the cert. 3.1, the chemical consistenc and the physical characteristics of the material are listed.

Standard and special materials
Anthermo is able to deliver nipoflanges in standard materials. Upon request special materials are also deliverable.

Stainless Steel Nipoflange

ASTM / ASME SA 182 F 304, 304L, 304H, 309H, 310H, 316, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347 H

Duplex Steel Nipoflange

ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61.

Carbon Steel Nipoflange

ASTM / ASME A 105. ASTM / ASME A 350 LF 2.

Alloy Steel Nipoflange

ASTM / ASME A 182 GR F 5, F 9, F 11, F 12, F 22, F 91.

Nickel Alloy Nipoflange

ASTM / ASME SB 564 UNS 2200 ( NICKEL 200 ), UNS 4400 (MONEL 400 ), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276
(HASTELLOY C 276 ) Nipoflange
ASTM / ASME SB 160 UNS 2201 (NICKEL 201 )
ASTM / ASME SB 472 UNS 8020 ( ALLOY 20 / 20 CB 3 )

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