English
The Zurcon® Buffer Seal is a heavy-duty, single-acting rod seal combining a high-modulus Zurcon® sealing ring and back-up ring in a tandem configuration. Designed for demanding hydraulic applications, it operates up to 40 MPa, –35 °C to +110 °C, and speeds up to 1 m/s. It’s ideal as a primary rod seal in high-pressure systems, delivering robust extrusion resistance, leak-tight performance, and long service life.
Rod/U-Cup:
Groove Diameter Outside140.5 mm
Signature StandardRUK3B1250-Z2054
Quality (10th Digit)-
TSS Article Number (3 to 9)K3B1250
Type of Article0
Root Groove Inside Diameter125 mm
Root Groove Outside Diameter140.5 mm
Groove Diameter Inside125 mm
Root Groove Width6.3 mm
Article GroupRU
Groove Width6.3 mm
Compound codeZ2054
Material Information for the product(s) on this page
Z20
Hardness unit:
Shore A
Gravity Unit:
g/cm³
Material Code Class:
Thermoplastic
Maximum Hardness:
93
Maximum Temperature:
110
Minimum Temperature:
-35
Material Type:
PUR
Material:
Z20
Hardness Tolerance:
+/- 3
Specific Gravity:
1.2
Shore A Hardness:
93+/- 3
Gravity Tolerance:
+/-0.02
Minimum Hardness:
93
Color:
Turquoise