Well Servicing Rubbers

Type WSNU
The ‘WSNU’ is a high performance, heavy-duty, all-rubber cup. The unique design of the ‘WSNU’ provides long life, maximum lift capacity, even under heavy load and deep swabbing conditions. The ‘WSNU’ is made from high strength, abrasion resistant, low friction rubber.

Type WSTA
The ‘WSTA’ is a medium-duty, all-rubber, variable lip cup. The ‘WSTA’ is made from a slightly softer rubber for greater flexibility under lighter loads.

Type WSHP
The ‘WSHP’ combines three lifting rings for maximum lift capacity with a lip designed for maximum lift power and long life under heavy loads. The ‘WSHP’ is available for standard tubing or with a slightly smaller O.D. for undersize tubing and faster falling.

Type WSMV
The ‘WSMV’ is a light-duty, all-rubber cup. The multiple upturned lips pass through tight spots and are especially suited for fluid with a high ratio of suspended sand because the lips will invert to dump an excessive load.

Type WSTU
The ‘WSTU’ is a flexible cup using a patented method of attaching the spring steel reinforcing wires along with a molded-in valve ring. The ‘WSTU’ is molded from a synthetic rubber for lifting medium to heavy loads.

SWAB CUP CROSS-REFERENCE CHART