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UNI 6090 Loose Flanges

UNI 6090 loose flange dimensions for Italian standard project review.

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Reference scope

Common order references

Standard / Type	Product	Typical scope
UNI 6090 loose flange	Product type	Dimensions and specification tables below
Documents	Material certificate	EN 10204 3.1 by request
Production release	Approved drawing / standard edition	Released against the controlled order file

Product data

Dimensions and specification tables

ITALY STANDARD UNI 6090 PN16 LAPPED FLANGE DIMENSIONS TABLE

Directions for the designation	Lapped flanges	Sscrews	Weight
Rated Diameter	External diameter of the pipe	a	b	D	d2	f	t	Holes	Flange
25	30	85	16	115	33	14	4	4	M12	1,11
33,7	37	1,08
32	38	100	16	140	41	18	4	4	M 16	1,63
42,4	46	1,58
40	44,5	110	16	150	48	18	4	4	M 16	1,85
48,3	52	1,81
50	57	125	16	165	62	18	4	4	M 16	2,16
60,3	64	2,14
65	76,1	145	16	185	80	18	4	4	M 16	2,60
80	88,9	160	18	200	94	18	5	8***	M 16	3,14
100	108	180	18	220	113	18	5	8	M 16	3,63
114,3	119	3,47
125	133	210	18	250	138	18	5	8	M 16	4,49
139,7	145	4,26
150	159	240	18	285	164	22	5	8	M 20	5,54
168,3	174	5,16
175	193,7	270	20	315	200	22	5	8	M 20	6,76
200	219,1	295	20	340	225	22	5	12	M 20	7,22
250	267	355	24	405	273	25	5	12	M 22	12,0
273	279	11,6
300	323,9	410	28	460	330	25	5	12	M 22	16,3
350	355,6	470	32	520	362	25	5	16	M 22	25,4
368	374	23,6
400	406,4	525	36	580	413	30	6	16	M 27	33,4
419	426	31,0
450	457,2	585	40	640	464	30	6	20	M 27	43,3
500	508	650	44	715	515	33	6	20	M 30	60,6
*	The weight is approximate and calculated on base 7.85 Kg/dm3
**	Raw hole to be worked again according to the real external diameter of the pipe
***	For PN10 the flange should have 4 holes

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

Supply notes

Supply and order notes

Product scope

UNI 6090 loose flange can be quoted in carbon steel, stainless steel or project material grades when the order specification, dimensions and certificate requirements are confirmed.

How we prepare the production item

Our quotation records the standard number, DN size, pressure rating, material grade, facing, quantity and document scope, with project drawings linked to the same production item.

Technical purchasing support

How Hyupshin turns the specification into a controlled flange order.

Dimension control

UNI production dimensions

Our technical team compares the requested standard edition and project drawing, then releases the applicable dimensions to production.

Pressure and facing

PN-rated pressure classes according to standard and project requirement

We record the PN rating, sealing-face form, surface finish and tolerance notes on each PN-rated quotation line.

Product geometry

Lap Joint / Loose manufacturing details

Flange type, sealing face, drilling, thickness and machining details are checked together so production and inspection use the same specification.

Documents

Certificate and inspection records

Our order file carries the agreed EN 10204 3.1, PED, AD 2000, UKCA, PMI, NDT and third-party inspection scope through to shipment.

Send this product for quotation

Request a quotation for this flange

Send the standard, flange type, DN, PN, sealing face, material grade, quantity, certificate requirement and any project drawing.

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