product Image

TOP

Mechanical Seals
Model Name
ALS 5
Series
Specialized Product
Data
-
Manufacturer information
provider logo
DONGSUH

Power Generation Plant Parts Manufacturer, Mechanical Seal, Mechanical Packing, Seal, Gasket and more

Problem with product info?
Update request
Manufacturer
DONGSUH
Brand
-
SKU
76618
Product Name
Mechanical Seals
Model Name
ALS 5
Size
-
Weight
-
Product Details

Description

The mechanical seal is affected by the pressure of fluid. Usually, there are unbalance type for low pressure and balance type for high pressure to use it. When it exceeds a certain threshold value due to the increased surface pressure of the seal face if the fluid is under high pressure, the lubricating film is worn out running in dry condition, which causes the leakage and decrease in life span due to the increased wearing and heat generation.

 

Surface roughness

Microfinished sliding faces made of various materials display the followingaverage, arithmetic mean roughness values(Ra):Tungsten carbide,nickel-bonded 0.01㎛ Carbon graphite 0.10㎛Silicon carbide(SiC) 0.04㎛ Aluminium oxide 0.15㎛Special cast Cr-steel 0.15㎛ C-SiC-Si/C-SiC 0.15㎛

The lower the roughness value, the higher the percentage bearing areaand hence the higher load capacity of a mechanical seal.

 

Turbulence losses Pv

The turbulence-related consumption of power is not significant until thecircumferential speed reaches 30 m/s. It must be given due considerationparticularly with special seals.

 

Power consumption

The total power consumption of a mechanical seal is calculated from

The power consumed by the sliding faces.

The power consumption due to turbulence created by the rotating parts.

 

Sliding velocity Vg

The sliding velocity is usually quoted in relation to the mean sliding face diameter.

 

Cooling water requirements

When estimating the amount of cooling water required by heat exchangers  it can be assumed that the temperature of the cooling water will increase by 5 K between the inlet and the outlet. This meansthat 1 I/min of cooling water dissipates 350 W.

DONGSUH
Power Generation Plant Parts Manufacturer, Mechanical Seal, Mechanical Packing, Seal, Gasket and more
We, DONGSUH Ind. produce different types of sealing products such as mechanical seal, packings, and gasket etc. and are developing various components and materials needed for power generation plant. We create the future based on the company's quality management system through high quality production and the cutting-edge production technology.  Dongsuh Ind. has achieved the world best quality and service through the complete process renovation such as the standardization of the production process and management of standard dimension, etc. based on the creative mind and passion as an innovative company for challenge and creative value of the unlimited possibility to realize the customer needs. We are also doing our utmost for the customer impression not for the customer satisfaction while securing the reliability based on the company's ultra precise production technology and know-how along with the cutting-edge facilities.  Our production services range from the nuclear power plants to chemical power plants, chemical plant and shipbuilding industry, etc. We fully concentrate on the production of high quality products along with the continuous R & D. Further, we have the thorough quality assurance system through the complete quality test by our in-house quality control and latest test facilities and to this end we are determined to do our utmost to take full responsibility and roles as a partner of our customers. Challenging to the world based on the company's best technology and best quality for different products is the commitment of Dongsuh Ind. to realize the company's business philosophy to be a true enterprise.  Active business and aggressive management are come from the confidence in the world best technology and products followed by the challenge mind for the future.  We are committed to ensuring our utmost to be the best value innovative enterprise for all of our customers and our all company members as the 21st century enterprise having the most competitive power under this unlimited competition age. We wish all of you more prosperity and progress.
Inquiry