DIN 86037 flange manufacturer

OEM as per your drawing, best price.

Material	CuNi90/10 ,CuNi70/30,C70600,C71500
Tamanho	DN15 to DN810
Pressure Rating	10Bra,16Bar
Packaging	Seaworthy Wooden Case
Padrão	DIN86037

DIN86037 welding Inner flange types

COPPERRY can produce the cuni inner flange material CuNi10Fe1.6Mn and CuNi30Fe1.0Mn for your project.

CuNiFe inner flange

CuNi 90/10 inner flange

din86037 outer flanges

Material: A105 (hot-dip galvanized), 316L, aluminum alloy. The outer flange is made of aluminum alloy because it is lightweight and resistant to seawater corrosion.
Standard: DIN 86037-part 3
DIN 86037 Composite flange consisting of CuNi inner and outer flange
Copper nickel inner and outer flanges separated by nylon and PTFE gaskets. Prevent galvanic corrosion from occurring when the two materials come into contact.

DIN86037 flange products

DIN86037 flanges consist of a copper nickel inner flange and carbon steel outer flange.The following video shows you the finished DIN86037 inner flange.

COPPERRY has been manufacturing DIN86037 flanges for 20 years. From DIN86037 flange blank forging, annealing, CNC, product inspection, to provide you with assured products.

Why choose us CuNi inner flange

1, Our DIN86037 standard copper nickel inner flange, or copper nickel collar, is made of forging. Some factories choose casting to reduce cost.
2, Each copper nickel inner flange is individually packaged in a customized carton to prevent damage.
3、Products in accordance with the requirements of the marking, playing your company logo.

DIN 86037 Flange Inspection

Our customer din86037 inner flange order, the customer personally came to our company for inspection.

Inspection Dimension

Customers use vernier calipers to measure the height, wall thickness, and outside diameter dimensions of din86037 cuni flange. the dimensions measured by the customer of our product match exactly with the drawing.

DIN86037 flange Chemical Composition Inspection

Our company provides customers with spectrometers imported from Germany. The customer tests the chemical composition of each specification of din86037 flanges, which meets the requirements of the standard for cuni90/10.

weigh

The customer weighs din86037 standard cuni flange from small to large on an electronic scale.

production process

DIN86037 inner flange dimension

RA in nominal	RA mm OD	s mm	d2 mm	d4 mm	h3 mm	h1 mm	weight kg/piece
1/2	20	1,0	21	45	40	5	0,13
3/4	25	1,5	27	58	40	5	0,15
1	30	1,5	32	68	40	5	0,20
1 1/4	38	1,5	40	78	40	5	0,25
1 1/2	44,5	1,5	46,5	88	45	6	0,36
2	57	1,5	59	102	45	6	0,45
2 1/2	76	2,0	78	122	45	6	0,62
3	89	2,0	91	138	50	7	0,86
4	108	2,5	110	158	50	7	1,10
5	133	2,5	135,5	188	50	7	1,50
6	159	2,5	161,5	212	50	9	2,00
7	194	3,0	197	242	50	9	2,30
8	219	3,0	222	268	50	9	2,70
10	267	3,0	270	320	50	9	3,40
12	324	4,0	327	370	50	11	4,60
14	368	4,0	371	430	50	11	6,30
16	419	4,0	422	482	50	12	7,50
18	457	4,5	460	530	50	12	9,10
20	508	5,0	511	585	50	12	10,70
24	610	5,0	613	685	60	14	14,90
28	711	6,0	714	800	60	14	21,00
32	813	6,0	816	905	60	14	24,50
36	914	8,0	918	1000	60	14	29,20
40	1016	8,0	1018	1110	60	14	34,00

DIN 86037 Flange : A Comprehensive Guide

DIN 86037 Flange Introduction

COPPERRY With 20+ years of manufacturing, we are industry-leading specialists in producing DIN86037 flanges. Having served numerous shipyards across China and worldwide.

Applications in Shipbuilding

The copper-nickel inner flange is designed for protection against seawater corrosion. Ensuring long service life and reliable performance.

Protection of Steel Flange:

It is treated with a hot-dip galvanizing process to shield it from the salty air onboard, to hasten the rusting process.

DIN86037 flanges —— Copper nickel inner flanges dimension

Assembly and Sealing

DIN86037 inner flange and the hot-dip galvanized steel outer flange – are securely fastened with bolts, creating a superior seal. DIN 86037 flange offers an efficient, durable, and cost-effective solution for shipbuilding requirements. promise not only quality and performance but also the guarantee of longevity.

DIN8037 flange benefit

DIN86037 flanges are cheaper than copper nickel high neck flanges. DIN86037 flanges are loose-fitting flanges, the outer flange can be rotated ， you can easily install the flange on site.

DIN86037 Flanges need to be insulated with gasket?

The din86037 flange is recommended to be fitted with an insulating liner. Copper nickel inner flange and carbon steel outer flange are two metals. Contact between two different metals will produce potential difference corrosion.

ps: potential difference corrosion is more serious than seawater corrosion.

Are your CuNi10Fe1.6Mn inner flanges forged or cast?

We can answer unequivocally that our CuNi10Fe1.6Mn inner flange is made from solid bar forging.

We firmly do not use casting to make CuNi10Fe1.6Mn inner flange. Because the casting flange has air holes and is not hard enough. It leads to leakage and serious corrosion during actual use.

Below shows you the photo of metallographic analysis of cast CuNi10Fe1.6Mn inner flange.

You can see the defects in the cast CuNi10Fe1.6Mn flange in the picture below.