LTJ-8B1D-FA1D56 Power plant Boiler Booster Pump Mechanical Seal

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Description

Description:

The Power plant boiler booster pump mechnical seal LTJ-8B1D-FA1D56 is a precision product that should be handled with caution. The sealing surface has been ground to a high flatness. During transportation, the sealing surface is equipped with protective devices to prevent damage. When removing the device, attention must be paid not to scratch or shatter these surfaces.

Before installing the seal, it is necessary to:

1. Check that the allowable deviation of the shaft sleeve diameter is ± 0.05mm, and the ovality should not exceed 0.025mm;

2 Check that the surface precision of the shaft sleeve should be within 0.4-0.6um (Ra- arithmetic mean deviation of the profile) or more;

3. Ensure that there are no sharp edges or burrs on the surface of the shaft sleeve, as the static ring must pass through these surfaces;

4. It should be ensured that the front edge of the shaft sleeve that the static ring must pass through is diagonally cut at 10, with a length of 10mm, and rounded to 1mm;

5. Check that the axial displacement of the pump shaft cannot exceed the working position off the shaft by 0.08mm;

6. Check that the perpendicularity of the static ring is correct, and the grinding surface of the static ring and the axis of the shaft must be

at a 90° angle to each other Within 0.03mm of the dial gauge reading

7. Check that the concentricity between the hole and shaft of the mechanical seal cover and the stationary ring should be within 0.05mm; Thoroughly and carefully clean the working surface and holes of the mechanical seal cover. The working surface of the mechanical seal cover should be machined smooth

And the verticality of the shaft should be within 0.03mm of the dial gauge reading:

The hole of the 9 shaft sleeve must prevent liquid from passing through. Check the O-ring of the shaft sleeve to ensure it is not damaged and remains clean.

Structural features of Power plant boller booster pump mechnical seal LTJ-8B1D-FA1D56

1. Single end face, containerized, multi spring, with uniform force on the sealing surface. Easy to install and use

2. The auxiliary sealing ring is a special fluorine rubber O-ring (resistant to high temperature and pressure) Applicable medium: boiler high-temperature water and other working conditions

 

Parameters:

1. Fixed substance content It: 5%

2. Temperature It: 280

3. Pressure It: 5.0MPa

4. Shaft diameter It: 120mm

5. Linear velocity It: 30mm

6. Main application: This seal is mainly used for the front pump of power plant boilers.

 

 

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