FIELD: sealings.
SUBSTANCE: bushing made of a wear proof material and provided with one or more longitudinal V-shaped slots is set on the rod of a rod pump. The bushing is housed in the flexible bandage made of a compressed loose material, e.g. rubber crumb. The wall of the housing is provided with a pressure pickup.
EFFECT: enhanced reliability.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SEAL FOR ROD OF ROD PUMP | 2001 |
|
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