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CH29 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 
CH29 U-ring PU
POM BACK UP-RING		 400 -30°C+100°C ≤0.5 CH29 - DIMENSIONS

CH29 is a two-piece single-acting buffer seal which consists of one specially designed elastomeric sealing element to evacuate back pressure and one thermoplastic back-up ring.

PROFILE
CH29 - Rod seal with back-up
 

PRODUCT ADVANTAGES
• No pressure build up between the primary and secondary seal
• Highly wear resistant
• Low friction
• Low axial housing heights
• Good protection of the secondary seal with pressure peaks

APPLICATION
Construction machinery, fork-lift trucks, injection moulding machines, agricultural machinery, cranes, earth moving equipment and standard cylinders.

INSTALLATION
Easily assembled into 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
A CH29 buffer seal is always used in a sealing system in combination with u-ring (CH22, CH33, etc) as they are not designed to serve as the main sealing element. CH29 reduces the pressure peaks on itself in order to protect the main sealing element from pressure fluctuations.

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