The reinforced serrated composite seal (cement slurry seal) for piston rods (shafts) consists of a specially designed serrated sealing ring made of high-performance engineering plastic and a rubber O-ring; it is suitable for unidirectional sealing in hydraulic reciprocating and rotary applications. It is primarily used in plunger pumps, mud pumps, screw drilling tools, drilling rigs, oil exploration equipment, concrete mixing plants, and more.
Key features include long service life, low friction, excellent sealing performance, compact design, and ease of installation, use, and maintenance. The optimized design of the sealing lip profile and thickness ensures effective sealing even when exposed to harsh media such as cement slurry.
When used with mud-like media, it is recommended to inject lubricating grease between the two (or more) sealing stages.
Limit values should not occur simultaneously.
|
Pressure (MPa) |
Temperature (°C) |
Speed (m/s) |
Medium |
|
|
Reciprocating motion |
Rotational motion |
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|
≤100 |
-35 to +100 (with NBR O-ring) |
≤6 |
≤2 |
Water, mud, crude oil, hydraulic oil, emulsion |
|
-20 to +200 (with FKM O-ring) |
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1. Compatible O-ring materials include: R01 Nitrile Rubber (NBR), R02 Fluororubber (FKM), etc.
2. Sealing ring material: Standard material PTFE4; other available materials include PTFE2, PTFE3, PTFE5, UPE, PK1, PK2, etc.
Order Model: RC2061-80*91.7*7.6-PTFE4-R01 (Model - Shaft Diameter * Groove Diameter * Groove Width - Material Code)
Sizes within the specified parameter range are available.
|
Shaft diameter range Standard type d f8 RC2061 |
Shaft diameter range Heavy-duty d f8 RC2061-Z |
Groove diameter D H9 |
Groove width L+0.2 |
Seal width L1 |
Corner Radius Rmax |
Radial clearance Smax |
Chamfer Zmin |
O-ring cross-section diameter |
||
|
<10MPA |
<20MPA |
<40MPA |
||||||||
|
5~15.9 |
- |
d+6.3 |
4.0 |
3.65 |
0.4 |
0.4 |
0.25 |
0.15 |
4 |
2.65 |
|
16~38.9 |
5~15.9 |
d+8.2 |
5.2 |
4.55 |
0.4 |
0.4 |
0.25 |
0.2 |
5 |
3.55 |
|
39~107.9 |
16~38.9 |
d+11.7 |
7.6 |
6.80 |
0.5 |
0.5 |
0.3 |
0.2 |
7 |
5.30 |
|
108~670.9 |
39~107.9 |
d+15.5 |
9.6 |
8.50 |
0.6 |
0.6 |
0.35 |
0.25 |
8 |
7.00 |
|
671~1600 |
108~670.9 |
d+19.4 |
12.1 |
11.1 |
0.7 |
0.7 |
0.5 |
0.3 |
10 |
8.60 |
Note: 1. For shaft diameters ≤30 mm, an open groove design is recommended.
2. For rotary sealing applications, the rotating shaft surface hardness should be HRC ≥58.
3. For pressures exceeding 30 MPa, an H8/f8 fit is recommended for the extrusion gap.
Address
No.1 Ruichen Road, Dongliuting Industrial Park, Chengyang District, Qingdao City, Shandong Province, China
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