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Removable Gaskets Pistons

Destination:

The pistons are used as spare parts for Hydraulic Groups from Oil industry which transport water, stem treated with crude oil and Diesel oil, at 90°C maximum temperature.
The pistons are fastened on the conic extremity of piston rod and are tightened by way nuts and counternuts.

Contents

1. Piston body 410-620/SR ISO 9477
2. Gasket rubber
3. Disk S235JRG2/ SR EN 10027
4. Safety OLC 85A/ STAS 795

Constructive characteristics:

The piston is one ensemble done by body piston which are mounted the removable gaskets by means of disk and safety rings.
There are two types of removable gaskets pistons:

  • type B, size 5- 4 1/2 ÷ 8 in
  • type L, size 6- 5 1/4 ÷ 8 in
Item Piston
tip B-marimea 5* 		Masa
neta
kg 		d,
mm 		Item Piston
tip L-marimea 6* 		Masa
neta
kg 		d,
mm
Inches mm Inches mm
1. 4½ 114,30 4,478 49 1.       60,3
2. 4¾ 120,65 4,890 49 2.       60,3
3. 5 127,00 5,360 49 3.       60,3
4. 5¼ 133,35 5,870 49 4.       60,3
5. 5½ 139,75 6,440 49 5. 5½ 139,75 6,500 60,3
6. 5¾ 146,05 6,990 49 6. 5¾ 146.05 7,040 60,3
7. 6 152,40 7,730 49 7. 6 152,40 7,660 60,3
8. 6¾ 158,75 8,290 49 8. 6¼ 158,75 8,310 60,3
9. 6½ 165,10 9,040 49 9. 6½ 165,10 8,980 60,3
10. 6¾ 171,45 9,070 49 10. 6¾ 171,45 9,680 60,3
11. 7 177,85 10,500 49 11. 7 177,85 10,430 60,3
12. 7¼ 184,15 11,280 49 12. 7½ 184,15 11,200 60,3
13. 7½ 190,50 12,320 49 13. 7½ 190,50 11,970 60,3
14. 7¾ 196,85 13,130 49 14. 7¾ 196,85 12,820 60,3
15. 8 202,60 13,990 49 15. 8 202,60 13,660 60,3

* – interior cone size

Dimensional data are indicated in above mentioneted table.

Technical and operating characteristics:

  • working medium: water, stem
  • working temperature: max. 90°C

Main materials

  • Piston body: casted or forged carbon steel
  • Gasket: rubber with polyamide insertions