Example of the conventional value when ordering:
017-021-25-2-2 GOST 18829-73/GOST 9833-73
017 – rod diameter 17 mm
021 – cylinder diameter 21 mm
25 – section diameter 2,5 mm multiplied by 10
2 – accuracy group, 2 – rubber group (B-14)
O-rings are manufactured of the rubber compounds of 2 (B-114) group and 6 group (IRP-1287).

Operating environment: mineral oils, fluid fuels, emulsions, lubricants.
Operating temperature:
for the rings made of a rubber of 2 group………………………………….. from -50 to +100°С (short moment up to +130°С);
for the rings made of a rubber of 6 group…………………………………..from -20 to +200°C.
Operating pressure: up to 50 MPa in fixed joints, up to 32 MPa in movable joints.

The rings made of a rubber of 2 group

Note:
1.The assortment is to be confirmed when ordering.

2.If the press molds are available, the manufacture of the other gland typical sizes, not indicated in the table, is possible.

3. The manufacture of the rings of 3 group is possible by agreement with the customer.

The rings made of a rubber of 6 group (heat-resistant)

Note:
1.The assortment is to be confirmed when ordering.

2.If the press molds are available, the manufacture of the other gland typical sizes, not indicated in the table, is possible.