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UNI 2280 PN6 Weld Neck Flanges

UNI 2280 PN6 weld neck flange dimensions.

EN 1092-1 focused ASME B16.5 supported PN-rated supply Traceable documents

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EN 1092-1Main product range

ANSI B16.5Class-rated American standard

PED / AD 2000 / UKCACertificate references

Importers & stockistsRepeat supply cooperation

European shipment markets

Flange supply support for European importers and distributors.

Hyupshin supports EN 1092-1, DIN, BS 4504, UNI and project-standard flange inquiries for buyers in United Kingdom, Germany, Hungary, Poland, Czech Republic, Croatia, Italy, Serbia, Slovakia, France, Norway, Portugal, Spain, Netherlands, Austria, Ireland, Albania, Bulgaria, Belgium, Greece.

United KingdomGermanyHungaryPolandCzech RepublicCroatiaItalySerbiaSlovakiaFranceNorwayPortugalSpainNetherlandsAustriaIrelandAlbaniaBulgariaBelgiumGreece

UNI 2280 PN6 Weld Neck Flanges product reference — Product reference **UNI 2280 PN6 Weld Neck Flanges**

Weld neck flanges for European standard projects — Weld neck flanges

Blind flanges for European distributor supply — Blind and project flanges

RFQ preparation

Information that makes European standard flange quotation faster.

Standard

EN 1092-1, ANSI / ASME B16.5, DIN, BS 4504, UNI or project drawing.

Flange details

Type, DN size, PN rating, facing, bore and drawing notes.

Material

Carbon steel, low-temperature steel, stainless steel or project grade.

Documents

EN 10204 3.1, inspection, marking, packing and certificate needs.

Supply notes

UNI 2280 PN6 Weld Neck Flanges for European buyers

Specification support from Hyupshin

Use the dimensions and RFQ notes below to check the required standard, size range, pressure rating, material grade and certificate needs before sending an inquiry.

RFQ confirmation points

Please confirm standard number, flange type, nominal size, pressure rating, material grade, facing, quantity, certificate requirement and any project drawing before quotation.

Product scope

UNI 2280 PN6 weld neck flange can be quoted in carbon steel, stainless steel or project material grades when the order specification, dimensions and certificate requirements are confirmed.

European buyer focus

Order details to confirm before production

Application

Weld Neck flange inquiries are reviewed against piping service, installation position and required facing.

Pressure rating

State PN rating clearly, especially PN10, PN16, PN25 or PN40 for regular European distributor orders.

Material range

Common RFQs include carbon steel, low-temperature steel and stainless steel grades. Attach the project grade when it differs from regular stock items.

Facing and finish

Confirm RF, FF, RTJ, galvanized finish, black paint, anti-rust oil or project-specific surface protection before quotation.

Certificate support

Mention EN 10204 3.1, PED, AD 2000, UKCA, PMI, NDT or third-party inspection requirements in the RFQ.

Packing

For European shipment, state pallet, wooden case, label, marking and mixed-size packing requirements early.

Procurement guidance

UNI 2280 PN6 Weld Neck Flanges quotation notes

Italian standard reference support

UNI 2280 PN6 Weld Neck Flanges buying notes

UNI flange pages support Italian standard references used in distributor stock, maintenance work and regional European projects. Plate flanges under UNI 2276, 2277 and 2278 and weld neck flanges under UNI 2280-2284 should be quoted with the exact UNI number rather than only a general description.

Italian and nearby European buyers often care about dimensional matching, material certificate, finish and repeat availability. The RFQ should include the UNI series, DN size, PN rating, material and whether the flanges are for stock or a named project.

Type confirmation

Weld Neck flange details

For weld neck flanges, the bore, pipe schedule, welding neck dimensions and pressure service should be stated clearly. These details affect machining and inspection, especially when the buyer needs WNRF, WNFF or RTJ execution.

For European buyers, the quotation is stronger when documentation requirements are stated at the beginning: EN 10204 3.1 certificate, PED or AD 2000 references, UKCA notes, third-party inspection, PMI, NDT, marking photos or packing photos. This avoids revising the price after the technical review.

Importer cooperation

How to prepare the RFQ

Hyupshin recommends sending the RFQ as a table when several sizes are involved. Separate each standard, type, pressure rating and material grade into its own line, then add quantity, destination port and required delivery time. This format is easier for European importers, distributors and project suppliers to compare and repeat in future orders.

If the order is urgent, mark which sizes are needed first and whether partial shipment is acceptable. For repeat distributors, previous purchase records or customer part numbers can be added to the message field so the specification can be matched more quickly.

Reference scope

Common order references

Standard / Type	Product	Typical scope
UNI 2280 PN6 weld neck flange	Product type	Dimensions and specification tables below
Documents	Material certificate	EN 10204 3.1 by request
Order control	Drawing / standard edition	Confirm before production

Product data

Dimensions and specification tables

ITALY STANDARD UNI 2280 PN6 WELDING NECK FLANGE RF DIMENSIONS TABLE

Directions for the designation	d1	a	b	D	f	h	h1	m	r	s	Holes	Screws	Weight*
Rated Diameter	External diameter of the pipe	Kg
15	20	21	55	12	80	11	30	6	28	4	2,5	4	M 10	0,45
21,3	22,5	30	0,45
20	25	26	65	14	90	11	32	6	35	4	2,5	4	M 10	0,66
26,9	28	38	0,66
25	30	31	75	14	100	11	35	6	40	4	2,8	4	M 10	0,83
33,7	34,5	42	0,82
32	38	39	90	14	120	14	35	6	50	6	3	4	M 12	1,18
42,4	43,5	55	1,16
40	44,5	45,5	100	14	130	14	38	7	58	6	3	4	M 12	1,40
48,3	49,5	62	1,38
50	57	58	110	14	140	14	38	8	70	6	3,5	4	M 12	1,58
60,3	61,5	74	1,56
65	76,1	77	130	14	160	14	38	9	88	6	3,5	4	M 12	1,95
80	88,9	90	150	16	190	18	42	10	102	8	3,7	4	M 16	3,07
100	108	109	170	16	210	18	45	10	122	8	3,7	4**	M 16	3,68
114,3	115,5	130	3,56
125	133	134	200	18	240	18	48	10	148	8	4	8	M 16	5,04
139,7	141	155	4,80
150	159	161	225	18	265	18	48	12	172	10	5	8	M 16	5,75
168,3	170,5	184	5,52
175	193,7	195,5	255	20	295	18	52	12	208	10	5	8	M 16	7,22
200	219,1	221	280	20	320	18	55	15	236	10	5	8	M 16	8,16
250	267	269	335	22	375	18	60	15	282	12	5,5	12	M 16	11,4
273	275	290	11,1
300	323,9	326	395	22	440	22	62	15	342	12	6	12	M 20	14,8
350	355,6	357,5	445	22	490	22	62	15	385	12	6,5	12	M 20	19,5
368	370	17,7
400	406,4	408,5	495	22	540	22	65	15	438	12	7	16	M 20	22,5
419	421	20,3
450	457,2	459	550	22	595	22	65	15	476	12	7,3	16	M 20	25,0
500	508	510	600	24	645	22	68	15	538	12	7,3	20	M 20	30,4
600	609,6	611,5	705	24	755	25	70	16	640	12	7,3	20	M 22	38,0
700	711,2	715	810	24	860	25	70	16	740	12	9	24	M 22	45,9
800	812,8	817	920	24	975	30	70	16	842	12	9	24	M 27	55,0
900	914,4	918	1020	26	1075	30	70	16	942	12	9	24	M 27	64,7
1000	1016	1020	1120	26	1175	30	70	16	1045	16	9	28	M 27	70,6
1200	1220	1224	1340	28	1405	33	90	20	1248	16	9	32	M 30	108
1400	1420	1424	1560	32	1630	36	90	20	1452	16	9	36	M 33	153
1600	1620	1624	1760	34	1830	36	90	20	1655	16	11	40	M 33	189
1800	1820	1824	1970	36	2045	39	100	20	1855	16	11	44	M 36 x 3	239
2000	2020	2024	2180	38	2265	42	110	25	2058	16	12	48	M 39 x 3	308
*	The weight is approximate and calculated on base 7.85 Kg/dm3
**	For oil piping the flange should have 8 holes

Use these tables for RFQ preparation. Final production should be confirmed against the required standard edition, drawing, material grade and certificate requirement.

Send this product for quotation

UNI 2280 PN6 Weld Neck Flanges RFQ support

Send the standard, DN size, PN rating, material grade, facing, quantity, certificate requirement and any project drawing. Hyupshin will check the specification before quotation.

Send Inquiry

RFQ preparation

Send standard, type, size, pressure, material and certificate requirements.

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