Features

1)The piston ring is always close to the inner wall of the barrel which increases the sealing performance.

2)The piston ring has an automatic compensation function which can extend the high efficiency period of pump.

3)There are sand scraping devices at both ends of the plunger which can scrape the sand particles on inner barrel and those particles are carried away by flow liquid.

Then extend the service life of pump.

Application

Suitable for oil well without sand.

A one-piece plunger incorporating machined grooves is fitted with chemical and abrasion resistant nylon split rings.

The rings have an increased upper surface area, enabling dynamic pressure to expand them outwards increasing sealing and efficiency on the upstroke.

The rings relax on the down stroke resulting in reduced compressive loading.

Piston ring type insert pump inspection

Multiple split rings allow controlled leakage and increased lubrication over the length of the plunger with each ring supporting a portion of the total fluid load.

This makes the Pressure Activated Plunger ideal for efficient pumping of wells where lubrication is a problem such as with high water cut or sand laden fluids where a close fit plunger will not last.

It is available in common sizes in 20, 40, and 60 ring designations.

Features & Advantages

1). Spray metal coated plunger protects against corrosion and wear.
2). Plunger has 0.005” fit size to allow trash to pass by the plunger.
3). Rings help to lift sand, trash and scale through the barrel.
4). The piston ring is always close to the inner wall of the barrel which increases the sealing performance.
5). The piston ring has an automatic compensation function which can extend the high efficiency period of pump.
6). There are sand scraping devices at both ends of the plunger which can scrape the sand particles on inner barrel and those particles are carried away by flow liquid. Then extend the service life of pump.

Application:

Suitable for oil well without sand.