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TEL：0316-5175885
E-MAIL：sales@jkhfseal.com
Base：Langfang anci district, 66 day high road
ADD：Tongzhou District, Beijing Zhangjiawan
Development Zone, West Dingfu Zhuang A 51
Foot-shaped slip ring combination seal JK2-Ⅱ
1. Overview
Foot-shaped slip ring combination seal JK2-Ⅱ is composed of a foot-shaped slip ring filled with polytetrafluoroethylene (PTFE) composite material and an O-shaped rubber ring (non-standard). It is used for sealing or static sealing of hydraulic and pneumatic ultra-high pressure reciprocating one-way pistons (holes), generally using open grooves.
2. Working conditions
Working pressure: 0～200MPa
Operating temperature: -55～+250℃ (depending on O-ring material)
Reciprocating speed: ≤6m/s
Applicable medium: air, water, water-glycol, mineral oil, acid, alkali, mud, etc.
3. Schematic diagram of assembly structure
JK2—Ⅱ Groove size
|
Cylinder diameter D(H9) |
Groove bottom diameter d(f8) |
Groove width L+0.2 |
Section diameter of O-ring d2 |
Radial clearance S≤ |
Chamfer Z≥ |
| 65~110 | D-15.4 | 13.8 | 8.0 | 0.3 | 4 |
| 115~180 | D-20.5 | 17.8 | 10.0 | 0.3 | 5 |
| 185~250 | D-25.0 | 21.7 | 13.0 | 0.4 | 7 |
| 260~500 | D-30.8 | 26.8 | 16.0 | 0.5 | 7 |