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Shanghai Kaiquan KQSN/M74S2/110-G95A M74S2/125-G95A mechanical seal


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Shanghai Kaiquan KQSN/M74S2/110-G95A M74S2/125-G95A mechanical seal

Pin     brand: Chuan Mi seal Scope of application: chemical pumps, clean water pumps, sewage pumps, cooling pumps Applicable industries: steelmaking, papermaking, chemical industry, electric power, cement industry, etc. Applicable host: Shanghai Kaiquan Pump Industry
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Chemical pump mechanical seal
Mechanical seal for water pump
product description

Structural features:

1. Single end face, multiple springs, uniform force on the sealing surface. When in use, regardless of the spring rotation direction.

2. The auxiliary sealing ring can be nitrile rubber, fluorine rubber, ethylene propylene rubber according to different conditions.

3. It complies with ISO3069, DIN24960 and GB6556 standards, with strong versatility.

Applicable medium:

Oil, water, acid, alkali, salt, etc.

Working parameters:

Fixed content: ≤10%

Temperature: ≤180℃

Pressure: ≤1.5MPa

Shaft diameter: ≤100mm

Material parameters:

Body material: 304, 316L or 2205, 2507, 1.4529

Seal ring material: graphite, silicon carbide, tungsten carbide

main application:

This type of mechanical seal is mainly used for cooling water pumps and circulating water pumps.

Common models:

KQSN450-M9/673 KQSN500-M9/621T KQSN500-M6/757 KQSN/J400-M6/725T-F

KQSN/J450-M9/615T-F KQSN350-M9/43 KQSN400-M19/402 KQSN350-M6/654

KQSN400-M13/470(I) KQSN400-M13/470 KQSN400-N13/470 KQSN500-M18/460

KQSN500-N13/504 KQSN600-M27/485(I)

Common sealing models:

M74S2/110-G95A M74S2/115-G95A M74S2/120-G95A M74S2/125-G95A

M74S2/130-G95A M74S2/135-G95A M74S2/140-G95A M74S2/145-G95A

M74S2/150-G95A M74S2/155-G95A M74S2/160-G95A M74S2/170-G95A

M74S2/180-G95A M74S2/190-G95A M74S2/200-G95A M74S2/190-G95A

Note: Because the pump has many uses, the sealing material (friction pair) is also different, in order to ensure the reliability of the seal

The manufacturer recommends as follows:

1. Clean water (working condition without particulate matter)-use of moving ring friction pair (alloy), static ring friction pair (graphite)

2. Strong corrosion (conditions containing particulate matter)-selection of moving ring friction pair (silicon carbide), static ring friction pair selection (silicon carbide)

3. Working conditions that contain particles and have large vibrations-use of moving ring friction pair (alloy), static ring friction pair (alloy)

4. It can also be customized according to customer requirements. If there is no requirement, the default is (clear water)

Installation and use requirements:

1. The radial runout of the shaft of the equipment should not be greater than 0.04 mm, and the axial runout is not allowed to be greater than 0.1 mm;

2. The sealing cavity of the equipment should be kept clean during installation, the sealing parts should be cleaned, and the sealing end face should be intact to prevent impurities and dust from being brought into the sealing part;

3. It is strictly forbidden to knock or knock during the installation process, so as not to damage the mechanical seal due to friction and seal failure;

4. During installation, the surface in contact with the seal should be coated with a layer of clean mechanical oil for smooth installation;

5. When installing the static ring gland, the tightening screws must be evenly stressed to ensure that the end face of the static ring is perpendicular to the axis line;

6. Push the moving ring by hand after installation, which can make the moving ring move flexibly on the shaft and have certain flexibility;

7. Rotate the shaft by hand after installation, and the shaft should not feel light or heavy;

8. The equipment must be filled with medium before operation to prevent dry friction and seal failure;

Operating parameters:
Line speed:
Suitable medium:
Oil, water, acid, alkali, salt, etc.
product features:
Sealing surface:
Graphite, tungsten carbide, silicon carbide
Auxiliary seal:
Nitrile, ethylene propylene, fluorine rubber, silicone, etc.
Metal components:
Structural features:
Single end face, multiple springs, uniform force on the sealing surface.
Contact us

Service hotline:0813-3202978

Working days: Monday to Saturday




39 Fuchuan Road, Yantan District, Zigong City, Sichuan Province, China

Zigong Chuanmi Mechanical seal Co., LTD  website:300.cn  蜀ICP备12011709号-1