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UNI 2253 Threaded Flanges

UNI 2253 threaded flange data and order notes.

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Reference scope

Common order references

Standard / Type	Product	Typical scope
UNI 2253 threaded 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 2253 PN6 THREADED FLANGE DIMENSIONS TABLE

Flange	Neck	Raised face	Screws	Weight (7,85 Kg/dm3)
Rated Diameter	d1	Thread	D	b	k	h1	d3	d4	f	Number	Thread	d2	Kg
15	21,3	R 1/2	80	12	55	20	30	40	2	4	M 10	11	0,373
20	26,9	R 3/4	90	14	65	24	40	50	2	4	M 10	11	0,59
25	33,7	R 1	100	14	75	24	50	60	2	4	M 10	11	0,743
32	42,4	R 1 1/4	120	14	90	26	60	70	2	4	M 12	14	1,05
40	48,3	R 1 1/2	130	14	100	26	70	80	3	4	M 12	14	1,2
50	60,3	R 2	140	14	110	28	80	90	3	4	M 12	14	1,37
65	76,1	R 2 1/2	160	14	130	32	100	110	3	4	M 12	14	1,92
80	88,9	R 3	190	16	150	34	110	128	3	4	M 16	18	2,82
100	114,3	R 4	210	16	170	38	130	148	3	4	M 16	18	3,19
125	139,7	R 5	240	18	200	40	160	178	3	8	M 16	18	4,47
150	165,1	R 6	265	18	225	44	185	202	3	8	M 16	18	5,3

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

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.

How we prepare the production item

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

Product scope

UNI 2253 threaded flange can be quoted in carbon steel, stainless steel or project material grades when the order specification, dimensions and certificate requirements are confirmed.

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

Threaded 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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