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CH751 U-ring




Product
name
Product
name
Application Material Profile Standard Hardness
Shore A
Pressure - (max) bar Temperature Sliding Speed
(max m/sec)
Dimension Price Pressure
Rating
Rotary
Speed
pH
Range
Dimensions 
CH751 U-ring PTFE
STAINLESS STEEL
350 -150°C+250°C ≤15.0

CH751 is a two-piece single-acting piston seal which consists of a PTFE U-ring with metal spring as a tension component.
 
PROFILE

 
PRODUCT ADVANTAGES
• Superior static and dynamic sealing effect by the metal spring
• High resistance to chemicals and temperature changes
• Low friction, free of stick-slip
• High sliding speed
• Long service life
• Good in dry running conditions
• Can be sterilized
• Low static and dynamic friction values

APPLICATION
Hydraulic and pneumatic cylinders, hot water valves, pumps, hot steam vanes, food processing, chemical and medical technology.

INSTALLATION
CH751 can be assembled into open and closed grooves. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the sealing element must be oiled with system oil

NOTES
Depending on the PTFE material, application values and their resistance may vary. The permissible sealing gap values of CH751 spring loaded piston seal is given in the table below.

 

B (mm) Smax (mm)
  50 bar 150 bar 250 bar 350 bar
2,4-3,6 0,10 0,075 0,05 0,05
4,8 0,20 0,10 0,075 0,06
7,1 0,25 0,15 0,10 0,075
9,5 0,30 0,15 0,13 0,075