DIN 11864 and DIN 11853 Aseptic Flange Connection

The DIN 11864 and DIN 11853 Aseptic Flange Connection from VTY factory has been crafted by Germany's hygienic sector to address the rigorous demands of the food, chemical, and pharmaceutical sectors. The DIN 11864 Flange Connection has long ends while Din 11853 Flange Connection has short ends.

Aseptic flange connections from VTY are tailored for deployment in sterile and hygienic processing settings. A full Aseptic Flange setup comprises a male and female flange, fastened with bolts and sealed using an O-ring. The nuts are threaded into the drilled holes in the flanges, keeping screw heads on the exterior. This ensures the flanges and O-ring are aligned coaxially.

The screws are then tightened securely. Subsequently, the collar flange is pressed in, bringing both flanges into engagement. This design, free from dead spaces, reduces microbial growth risks and guarantees dependable long-term operation.

What Is a DIN 11864 & DIN 11853 Aseptic Flange Connection?

DIN 11864 and DIN 11853 are internationally recognized hygienic connection standards developed for sterile process systems where contamination control is critical.

The unique design ensures precise coaxial alignment between sealing surfaces while eliminating dead spaces where bacteria could accumulate.

During installation, the flange faces are compressed uniformly through bolted connections, creating a highly secure and leak-proof seal suitable for pharmaceutical-grade applications.

This aseptic design significantly reduces microbial contamination risks while maintaining excellent cleanability and process reliability.

Key Features

Aseptic flange connection designed for larger nominal sizes or elevated pressure demands.

Force transfer is accomplished through bolted flanges featuring aseptic sealing contours.

Perfect for larger pipe diameters and tailored plant configurations.

Applications

Pharmaceutical Industry

Used in sterile drug production lines, vaccine manufacturing facilities, purified water systems, and cleanroom process equipment.

Biotechnology Industry

Ideal for fermentation systems, bioreactors, laboratory process lines, and aseptic transfer systems.

Dairy Processing

Widely applied in milk processing, yogurt production, cheese manufacturing, and sanitary storage systems.

Beverage Industry

Suitable for beer brewing, wine production, juice processing, bottled water production, and soft drink manufacturing.

Food Processing Industry

Used in hygienic processing pipelines where strict sanitation requirements must be maintained.

Liquid Cooling Industry

Increasingly utilized in high-performance liquid cooling systems requiring precision fluid control and contamination-free operation.

Custom Manufacturing Service

VTY provides comprehensive OEM and ODM services.

Our customization capabilities include:

Customized dimensions

Drawing-based manufacturing

Sample-based production

Special surface polishing

Laser marking

Customized packaging

Special material selection

Our engineering team works closely with customers to develop tailored hygienic connection solutions for unique processing requirements.

FAQ

What is the difference between DIN 11864 and DIN 11853 Aseptic Flange Connection?

The primary difference is the welding end length. DIN 11864 features long welding ends, while DIN 11853 uses short welding ends.

Are DIN 11864 flange connections suitable for pharmaceutical applications?

Yes. DIN 11864 aseptic flange connections are specifically designed for sterile pharmaceutical and biotechnology processing systems.

Can these flange connections be used with CIP and SIP systems?

Yes. They are fully compatible with CIP and SIP cleaning and sterilization procedures.

What materials are available?

Common materials include SS304 and SS316L stainless steel. Customized materials are available upon request.

Do you provide OEM manufacturing services?

Yes. VTY can manufacture according to customer drawings, samples, and technical specifications.

What certifications does VTY have?

VTY holds ISO9001, ISO14001, ISO45001, 3A Sanitary Certification, National Health License, and multiple patent certifications.

DIN Tube (Form A)

DIN11853-F-A / DIN11864-F-A

Aseptic Flange Connection, Welded

Size	A	B	L	L(Long)		T
10	13	54	48	80		1.5
15	19	59	48	80		1.5
20	23	64	48	80		1.5
25	29	70	48	80		1.5
32	35	76	48	90		1.5
40	41	82	48	90		1.5
50	53	94	48	90		1.5
65	70	113	48	108		2.0
80	85	133	52	116		2.0
100	104	159	52	116		2.0
125	129	183	56	120		2.0
150	154	213	56	120		2.0

DIN11853-NF-2A / DIN11864-NF-2A

Aseptic Nut Flange

Size	A	B	L	L(L ong)		T
10	13	54	25.5	41.5		1.5
15	19	59	25.5	41.5		1.5
20	23	64	25.5	41.5		1.5
25	29	70	25.5	41.5		1.5
32	35	76	25.5	46.5		1.5
40	41	82	25.5	46.5		1.5
50	53	94	25.5	46.5		1.5
65	70	113	25.5	55.5		2.0
80	85	133	27.5	59.5		2.0
100	104	159	27.5	59.5		2.0
125	129	183	29.5	61.5		2.0
150	154	213	29.5	61.5		2.0

DIN11853-BF-2A / DIN11864-BF-2A

Aseptic Liner Flange

Size	A	B	L	L(Long)		T
10	13	54	24	40		1.5
15	19	59	24	40		1.5
20	23	64	24	40		1.5
25	29	70	24	40		1.5
32	35	76	24	45		1.5
40	41	82	24	45		1.5
50	53	94	24	45		1.5
65	70	113	24	54		2.0
80	85	133	26	58		2.0
100	104	159	26	58		2.0
125	129	183	28	60		2.0
150	154	213	28	60		2.0

DIN11853-BBF-2A / DIN11864-BBF-2A

Aseptic Blank Liner Flange

Size		A			L
10		54			10
15		59			10
20		64			10
25		70			10
32		76			10
40		82			10
50		94			10
65		113			10
80		133			12
100		159			14
125		183			14
150		213			16

DIN11853-BNF-2A / DIN11864-BNF-2A

Blank Nut Flange

Size	B	L
10	54	11.5
15	59	11.5
20	64	11.5
25	70	11.5
32	76	11.5
40	82	11.5
50	94	11.5
65	113	11.5
80	133	13.5
100	159	15.5
125	183	15.5
150	213	17.5

DIN11853-R-A / DIN11864-R-A

O-Ring

Size	A	L
10	12	3.5
15	18	5.0
20	22	5.0
25	28	5.0
32	34	3.5
40	40	3.5
50	52	3.5
65	68	5.0
80	83	5.0
100	102	5.0
125	127	5.0
150	152	5.0

ISO Tube (Form B)

DIN11853-F-B / DIN11864-F-B

Aseptic Flange Connection, Welded

Size	A	B	L	L(Long)		T
13.5	13.5	54	48	80		1.6
17.2	17.2	59	48	80		1.6
21.3	21.3	62	48	80		1.6
26.9	26.9	69	48	80		1.6
33.7	33.7	74	48	90		2.0
42.4	42.4	82	48	90		2.0
48.3	48.3	88	48	90		2.0
60.3	60.3	103	48	108		2.0
76.1	76.1	125	48	112		2.0
88.9	88.9	137	52	116		2.3
114.3	114.3	168	52	116		2.3

DIN11853-NF-2B / DIN11864-NF-2B

Aseptic Nut Flange

Size	A	B	L	L(Long)		T
13.5	13.5	54	25.5	41.5		1.6
17.2	17.2	59	25.5	41.5		1.6
21.3	21.3	62	25.5	41.5		1.6
26.9	26.9	69	25.5	41.5		1.6
33.7	33.7	74	25.5	46.5		2.0
42.4	42.4	82	25.5	46.5		2.0
48.3	48.3	88	25.5	46.5		2.0
60.3	60.3	103	25.5	55.5		2.0
76.1	76.1	125	25.5	57.5		2.0
88.9	88.9	137	27.5	59.5		2.3
114.3	114.3	168	27.5	59.5		2.3

DIN11853-BF-2B / DIN11864-BF-2B

Aseptic Liner Flange

Size	A	B	L	L(Long)		T
13.5	13.5	54	24	40		1.6
17.2	17.2	59	24	40		1.6
21.3	21.3	62	24	40		1.6
26.9	26.9	69	24	40		1.6
33.7	33.7	74	24	45		2.0
42.4	42.4	82	24	45		2.0
48.3	48.3	88	24	45		2.0
60.3	60.3	103	24	54		2.0
76.1	76.1	125	24	56		2.0
88.9	88.9	137	26	58		2.3
114.3	114.3	168	26	58		2.3

DIN11853-BBF-2B / DIN11864-BBF-2B

Aseptic Blank Liner Flange

Size		A			L
13.5		54			10
17.2		59			10
21.3		62			10
26.9		69			10
33.7		74			10
42.4		82			10
48.3		88			10
60.3		103			10
76.1		125			12
88.9		137			12
114.3		168			14v

DIN11853-BNF-2B / DIN11864-BNF-2B

Blank Nut Flange

Size	B	L
13.5	54	11.5
17.2	59	11.5
21.3	62	11.5
26.9	69	11.5
33.7	74	11.5
42.4	82	11.5
48.3	88	11.5
60.3	103	11.5
76.1	125	13.5
88.9	137	13.5
114.3	168	15.5

DIN11853-R-B / DIN11864-R-B

O-Ring

Size	A	B
13.5	12.0	3.5
17.2	16.0	3.5
21.3	20.0	3.5
26.9	26.0	3.5
33.7	32.0	5.0
42.4	40.5	5.0
48.3	46.5	5.0
60.3	58.5	5.0
76.1	73.5	5.0
88.9	86.5	5.0
114.3	111.0	5.0

INCH Tube (Form C)

DIN11853-F-C / DIN11864-F-C

Aseptic Flange Connection, Welded

Size	A	B	L	L(L ong)		T
1/2"	12.7	54	48	80		1.65
3/4"	19.05	59	48	80		1.65
1"	25.4	66	48	80		1.65
11/2"	38.1	79	48	90		1.65
2"	50.8	92	48	90		1.65
21/2"	63.5	107	48	108		1.65
3"	76.2	125	48	112		1.65
4"	101.6	157	52	116		2.11

DIN11853-NF-2C / DIN11864-NF-2C

Aseptic Nut Flange

Size	A	B	L	L(Long)		T
1/2"	12.7	54	25.5	41.5		1.65
3/4"	19.05	59	25.5	41.5		1.65
1"	25.4	66	25.5	41.5		1.65
11/2"	38.1	79	25.5	46.5		1.65
2"	50.8	92	25.5	46.5		1.65
21/2"	63.5	107	25.5	55.5		1.65
3"	76.2	125	25.5	57.5		1.65
4"	101.6	157	27.5	59.5		2.11

DIN11853-BF-2C / DIN11864-BF-2C

Aseptic Liner Flange

Size	A	B	L	L(Long)		T
1/2"	12.7	54	24	40		1.65
3/4"	19.05	59	24	40		1.65
1"	25.4	66	24	40		1.65
11/2"	38.1	79	24	45		1.65
2"	50.8	92	24	45		1.65
21/2"	63.5	107	24	54		1.65
3"	76.2	125	24	56		1.65
4"	101.6	157	26	58		2.11

DIN11853-BBF-2C / DIN11864-BBF-2C

Aseptic Blank Liner Flange

Size		B			L
1/2"		54			10
3/4"		59			10
1"		66			10
11/2"		79			10
2"		92			10
21/2"		107			10
3"		125			12
4"		157			14

DIN11853-BNF-2C / DIN11864-BNF-2C

Blank Nut Flange

Size	B	L
1/2"	54	11.5
3/4"	59	11.5
1"	66	11.5
11/2"	79	11.5
2"	92	11.5
21/2"	107	11.5
3"	125	13.5
4"	157	15.5

DIN11853-R-C / DIN11864-R-C

O-Ring

Size	A	B
1/2"	12	3.5
3/4"	18	3.5
1"	24	3.5
11/2"	37	5.0
2"	50	5.0
21/2"	62	5.0
3"	75	5.0
4"	100	5.0