Washers GN 6225

Material (Sealing Ring): F - FKM

Product Family Stainless Steel

Standard parts made of rustproof stainless steel have been designed for use in the food sector, in the chemical industry, for aggressive ambient conditions or for outdoor use.

corrosion-resistant
precise fit
environmentally friendly

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Product Family Hygienic Design

Standard Parts of the “Hygienic Design” product family are labeled with the HD icon. They combine high surface quality, freedom from dead spaces, non-scooped outer surfaces, and sealed bolting areas. A sealing concept based on FEM calculations ensures reliable contact pressure after installation.

suitable for use in hygienically sensitive areas
quick and easy cleaning
no dead spaces due to functional seals
certified according to EHEDG guidelines

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FDA compliant

Principles for Hygienic Design Plastic Characteristics Stainless Steel Characteristics

Product description

Washers GN 6225 are intended for use in hygienic areas. The sealed contact surface enables fastening without dead space. The high quality finish prevents adherence of dirt and facilitates cleaning.

Washers are used together with bolts and nuts (GN 1580 / GN 1581 / GN 1582). The enlarged contact surface allows compensation for tolerances and position adjustment when combined with larger through holes or slots. On thin sheet metal parts, the significantly enlarged contact diameter ensures that the bolt force is evenly distributed.

Due to the material used, the washers can be used in particularly aggressive environments.

Specification

Washer
Stainless steel AISI 316L
Matte finish (Ra < 0.8 µm)MT

Sealing ring

HNBRH
Operating temperature -13 °F bis 302 °F
(-25 °C to +150 °C)
EPDME
Operating temperature -40 °F bis 248 °F
(-40 °C to +120 °C)
FKMF
Operating temperature 23 °F bis 392 °F
(-5 °C to +200 °C)
FDA compliant material
Blue
Hardness 85 ±5 Shore A

RoHS

Accessory

GN 7600 Sealing Rings

Part Number H - HNBR	Part Number E - EPDM	Part Number F - FKM	d₁	d₂	d₃	d₄	d₅	s


6225-4-14-MT-H	6225-4-14-MT-E	6225-4-14-MT-F	0.157 +0.004  / +0.008	0.55	0.512 + 0.008	0.39	0.58	0.16
6225-4-18-MT-H	6225-4-18-MT-E	6225-4-18-MT-F	0.157 +0.004  / +0.008	0.71	0.512 + 0.008	0.55	0.74	0.16
6225-5-16-MT-H	6225-5-16-MT-E	6225-5-16-MT-F	0.197 +0.004  / +0.008	0.63	0.551 + 0.008	0.47	0.66	0.16
6225-5-21-MT-H	6225-5-21-MT-E	6225-5-21-MT-F	0.197 +0.004  / +0.008	0.83	0.551 + 0.008	0.67	0.86	0.16
6225-6-18-MT-H	6225-6-18-MT-E	6225-6-18-MT-F	0.236 +0.004  / +0.008	0.71	0.630 + 0.008	0.55	0.74	0.16
6225-6-25-MT-H	6225-6-25-MT-E	6225-6-25-MT-F	0.236 +0.004  / +0.008	0.98	0.630 + 0.008	0.83	1.02	0.16
6225-8-22-MT-H	6225-8-22-MT-E	6225-8-22-MT-F	0.315 +0.004  / +0.008	0.87	0.787 + 0.008	0.71	0.90	0.16
6225-8-30-MT-H	6225-8-30-MT-E	6225-8-30-MT-F	0.315 +0.004  / +0.008	1.18	0.787 + 0.008	1.02	1.21	0.20
6225-10-25-MT-H	6225-10-25-MT-E	6225-10-25-MT-F	0.394 +0.004  / +0.008	0.98	0.906 + 0.008	0.83	1.02	0.16
6225-10-36-MT-H	6225-10-36-MT-E	6225-10-36-MT-F	0.394 +0.004  / +0.008	1.42	0.906 + 0.008	1.26	1.45	0.20
6225-12-30-MT-H	6225-12-30-MT-E	6225-12-30-MT-F	0.472 +0.004  / +0.008	1.18	1.063 + 0.008	1.02	1.21	0.20
6225-12-42-MT-H	6225-12-42-MT-E	6225-12-42-MT-F	0.472 +0.004  / +0.008	1.65	1.063 + 0.008	1.50	1.69	0.24

d₁	d₂	d₃	d₄	d₅	s

0.157	0.55	0.512	0.39	0.58	0.16
0.157	0.71	0.512	0.55	0.74	0.16
0.197	0.63	0.551	0.47	0.66	0.16
0.197	0.83	0.551	0.67	0.86	0.16
0.236	0.71	0.630	0.55	0.74	0.16
0.236	0.98	0.630	0.83	1.02	0.16
0.315	0.87	0.787	0.71	0.90	0.16
0.315	1.18	0.787	1.02	1.21	0.20
0.394	0.98	0.906	0.83	1.02	0.16
0.394	1.42	0.906	1.26	1.45	0.20
0.472	1.18	1.063	1.02	1.21	0.20
0.472	1.65	1.063	1.50	1.69	0.24

d₁

d₂

d₃

d₄

d₅

0.157

0.55

0.512

0.39

0.58

0.16

0.157

0.71

0.512

0.55

0.74

0.16

0.197

0.63

0.551

0.47

0.66

0.16

0.197

0.83

0.551

0.67

0.86

0.16

0.236

0.71

0.630

0.55

0.74

0.16

0.236

0.98

0.630

0.83

1.02

0.16

0.315

0.87

0.787

0.71

0.90

0.16

0.315

1.18

0.787

1.02

1.21

0.20

0.394

0.98

0.906

0.83

1.02

0.16

0.394

1.42

0.906

1.26

1.45

0.20

0.472

1.18

1.063

1.02

1.21

0.20

0.472

1.65

1.063

1.50

1.69

0.24

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GN 6225 Washers Stainless Steel, Hygienic Design

Product Family Stainless Steel

Product Family Hygienic Design

FDA compliant

Product description

Specification

Accessory

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