Fluorine Hydraulic O-ring seals and other types of comparison

Different types of fixed seal or dynamic seal applications, hydraulic O-ring seal element provides designers with an effective and economical. Hydraulic o-ring is a double-acting sealing element. Initial installation aspects radial or axial compression, giving hydraulic o-ring seal its initial capacity. Sealing force generated by the pressure of the system and the total synthesis of the initial sealing force of the sealing force, with which to improve the system pressure increases. Hydraulic o-ring seal in the static case, display a prominent role. However, in a dynamic appropriate occasions, hydraulic o-rings are often used, but it is limited by the speed of seals and pressure.

Hydraulic O-rings may be used as the low-speed rotational movement and a shorter operating cycle rotary shaft seal. When the peripheral speed is less than 0.5m / s, hydraulic O-ring selection according to the normal design criteria; when the circumferential speed is greater than 0.5m / s, will be considered after the shrinkage phenomenon heated elongated rubber ring, so choose seal ring inner diameter than the shaft diameter to be sealed it about 2% larger, the above phenomenon can be avoided. After the seal is installed in the groove, resulting in seal by radial compression, hydraulic O-circle in the formation of micro corrugated ditch canal, thereby improving the lubrication conditions.

- For a variety of seal forms: static seals, dynamic seals for various uses materials, dimensions and grooves have been standardized, interchangeable for a variety of motion: rotation, axial reciprocating movement or combination of movements (such as spin reciprocating motion combination

Suitable for a variety of different sealing medium: oil, water, gas, chemical, mixed media or other media

By appropriate choice of rubber materials and appropriate formulations designed to realize the oil, water, air, gas and chemical media and effective seal. Wide temperature range (- 60 ? ~ + 220 ?), the use of fixed pressure up to 1500Kg / cm2 (and reinforcing ring and use) designed to be simple, compact, easy assembly and disassembly

Hydraulic O-ring cross-sectional structure is extremely simple, and there is self-sealing, reliable sealing performance.

As the hydraulic O-ring and install parts of the structure itself is extremely simple and has become standardized, so installation is very easy to replace.

Material varieties

Can be selected depending on the fluid: There are nitrile rubber (NBR), Viton (FKM), silicone rubber (VMQ), ethylene-propylene rubber (EPDM), chloroprene rubber (CR), butyl rubber (BU), poly tetrafluoroethylene (PTFE), natural rubber (NR) and other low-cost dynamic frictional resistance is relatively small.