PPR Ball Valve Sealed And Reliable, Simple Structure

PPR Ball Valve in the use or installation period may be within the leakage, due to the frequent use of the switch, or did not install as required, and many other reasons, resulting in the PPR Ball Valve can not work, the following to explain the daily maintenance of the PPR Ball Valve and fault Approach.

A: wear-resistant; as a result of hard seal PPR Ball Valve is alloy steel spray welding, three-piece PPR Ball Valve seal is alloy steel surfacing, so hard seal PPR Ball Valve in the switch will not produce too much wear. (Its hardness factor is 65-70):

Second: sealing performance; due to the seal of the hard seal PPR Ball Valve is used artificial grinding, until the spool and seal ring can be used in order to fully use. So his sealing performance is reliable.

Three: switch light; as a result of hard seal PPR Ball Valve ring at the bottom of the spring so that the seal ring and the spool firmly together, so the force in the external force exceeds the spring preload when the switch is very light.

Four: the service life; has been widely used in petroleum, chemical, power generation, paper, atomic energy, aviation, rockets and other departments, as well as people's daily lives.

Pneumatic PPR Ball Valve compact structure, reliable sealing, simple structure, easy maintenance, sealing surface and the spherical surface is often closed, not easily eroded by the media, easy to operate and maintenance, for water, solvents, acids and natural gas and other general working medium, In the cut-off or connected to the pipeline in the medium, can also be used for fluid regulation and control.

Pneumatic PPR Ball Valve compared with other types of valves, with angular travel torque, open quickly, smooth and reliable, wide range of applications, etc. The following advantages:

1, thrust bearing to reduce the stem friction torque, the stem can be long-term operation smooth and flexible.

2, anti-static function: in the sphere, stem, valve body set between the spring, the switch can produce static electricity derived.

3, due to PTFE and other materials with good self-lubricating, and the ball friction loss is small, so the use of pneumatic PPR Ball Valve long life.

4, the fluid resistance is small: Pneumatic PPR Ball Valve is the valve in all the classification of the smallest resistance to a fluid, even the reduced diameter pneumatic PPR Ball Valve, the fluid resistance is also quite small.

5, the stem seal is reliable: the stem as only imitation and movement without lifting movements, stem packing seal is not easy to damage, and the sealing capacity increases with the pressure of the media increases.

6, the valve seat sealing performance: the use of PTFE and other elastic materials made of seals, the structure is easy to seal, and pneumatic valve valve sealing capacity increases with the media pressure increases.

PPR Ball Valve is widely used in industrial areas of the valve, it has a small fluid resistance, simple structure, reliable sealing, wide range of applications and flexible operation and so on. However, due to the general use of ordinary PPR Ball Valve soft seal, the use of temperature is limited (less than 200), which limits the ball in the thermal power plant (especially high temperature, high pressure water system) in the application.

In recent years, with the development of PPR Ball Valve technology, developed for more high temperature metal sealed PPR Ball Valve, greatly expanding the PPR Ball Valve in the application of thermal power plants.

For the thermal power plant traps, metal sealed PPR Ball Valve gradually replace the traditional cut-off valve has become an inevitable trend, which is sealed by the metal PPR Ball Valve compared to the advantages of the traditional cut-off valve. The imported hydrophobic PPR Ball Valve is made of nylon, as a spherical material, sprayed with chromium carbide coating (commonly known as hot spray coating process), with high temperature resistance, corrosion resistance, erosion resistance, thermal shock and frequent operation characteristics, suitable for boiler hydrophobic, Boiler steam, row row row, drum exhaust, superheater exhaust and hydrophobic, sootblower isolation, water temperature isolation and steam turbine hydrophobic, main steam hydrophobic, exhausted hydrophobic, reheat hydrophobic, a steam isolation, two Secondary steam isolation and other conditions used.