The France LIARD™ scraper is designed specifically for those applications where total oil control is necessary. Available in both cast iron and bronze, the unique design and operation of these rings provide extremely effective containment of lubricants in their intended area as well as long trouble free service.

Double Edge - Tangent Cut

France Type 242
Tangent cut, double-acting ring. The dual scraping edges are separated for mazimum stability on the rod and the annular area between the edges is vented for drainage. Face slots allow for the draining of lubricant removed in either direction. This ring is particularly effective on vertical piston rods. France does not recommend plunging the rod with this type of ring due to the potential damage to the inner tips of the ring.

Single Edge - Tangent Cut

France Type 243
Tangent cut ring with a wiping edge on one side to form a single-acting wiper ring. This uni-directional wiper offers all of the features of the Type 242 ring with the exception that drainage slots are provided only on one face. France does not recommend plunging the rod with this type of ring due to the potential damage to the inner tips of the ring.

Single Edge - Radial Cut

France Type 244
Radial cut ring with a wiping edge on one side and slots on the face to form a single-acting wiper ring. These rings are normally used in multiple ring assemblies to prevent a direct leakage path through the radial gaps. This style of wiper is particularly effective on small diameter piston rods due to the total lack of joint friction.

Liard Wiper - Radial Cut

France Type 288
The Liard wiper, which was developed by the France Compressor facility in France, is used whenever oil control is a problem. The unique design and operation of the Liard wiper provides extremely effective containment of lubricants. Unlike conventional oil wiper rings, the Type 288 Liard wiper ring has no drain slots on the ring faces. As a result the possibility of oil bypassing the rings along the side of the groove via these slots is essentially eliminated.