Parker M3 V-type combination of ring
  M3 type rod seals have 5 V-ring (3 fabric reinforced seal, two rubber seal), a support ring and a retaining ring. Support ring with stiff fabric or plastic material was obtained. Only hard collar made of fabric. For the rod diameter of 80mm and larger, the company supplies has four fabric reinforced V-ring seal and a rubber seal components. For shank diameter 140mm and larger supply of seal assembly has five fabric reinforced V-ring seals. Under different circumstances in the size of this sample, please choose a seal assembly according to the company's MO seals. The company's sales department will inform the corresponding order numbers.

The main advantage of M3 rod seals are:

● For different liquids and temperature ranges can be adjusted by selecting the appropriate material.

● by changing or adjusting the axial preload (clearance sheet or screw ring) can be adapted to special working conditions.

● Due to the structural stability of the high-voltage peak insensitive.

● Compared with the one-piece seal, for minor contamination or damage to the sliding surface of the media is not sensitive.

● Since the contact area length and a few of the sealing lip, it has an excellent sealing performance.

● Seals may be cut, it is advantageous to install. So no need to dismantle all cylinders in the case of maintenance or repair.

  V-ring seals radially preloaded, such that the sealing lip and the inner and outer radii have close contact to obtain good sealing performance low friction. Working pressure can effectively seal and achieve a tight fit between the mating surfaces. By adjustable groove (screw ring gap or sheet) to achieve the best fit and tightness of the relevant friction. Due to this adjustment means, the sealing member can have a longer working life.

1. Material:

Collar: NBR-based hard fabric (Q5021 / Q5022)

V-ring seals: fabric reinforced rubber, NBR group (Q5018 / Q5019), NBR rubber (N3578)

Support ring: polyacetal resin (POM-W5001) or NBR-based hard fabric (Q5021 / Q5022)

For high temperature and chemical resistance of the working conditions, it is recommended to use the company FKM material.

If the special requirements (temperature, velocity, for water, HFA solution, HFB and other liquid medium). Please contact the company's consulting services in order to recommend the appropriate materials and structures.

2. Application:

Working pressure: ≤500bar

Operating temperature: -40 to + 100 ° C

Surface speed: ≤0,5m / s

Even under harsh working conditions, V-ring seals are extremely suitable as a plunger rod presses, cylinder, valve shaft, valve seal. Therefore, these seals can be recommended in practice it is difficult to predict.

3. Install:

Because the fabric elastic V-ring seal is low, and that such seals required axial preload, and therefore there should be an open one side of the mounting groove. The actual height of the component is generally consistent with the length of the channel of "L". Manufacturing tolerances seals and metal parts (particularly in the case of large size) can be a sheet or screw ring gap to compensate for best feature (at least have an adjustable length "L" of 5%). When the strong impact, the flexible seal assembly will actually be reduced. In this case, it is accompanied by excessive friction and high wear evolved into a support ring from the piston rod guide role. Because of this adjustability, such components can be used for special occasions. For example, at high speed, wide temperature range, pressure changes in conditions, or a combination of these parameters in the case. Each element of this seal assembly should be installed individually according to their order in this component. Add some oil or grease will put some little too easy to assemble

many. We have a great cross section of fabric V-ring seals can be warmed in a little oil in their rub to make it more flexible, so that it will be very convenient to install. For easier maintenance, this type of seal assembly may also cut. V-ring seals and the retaining ring into a 45 ° angle, and the support ring is cut into a 90 ° angle. Cut each element should be installed staggered into 120 °, so as not to alter the length of the trench.