SPX TG H15-50, Instruction Manual, Page: 70 / 110

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A.0500.351 – IM-TGH/07.02 EN (10/2015)
4.7.7 Adjustment of mechanical seal
4.7.7.1 GS – Single mechanical seal
1. Mechanical seal without set screws (e.g. Sealol type 043 and Burgmann type MG12)
– Pump size TG H2-32 and TG H3-32
The mechanical seal is mounted against a shoulder ring (2090), see figure.
Adjusting is not necessary if the built in length of the mechanical seal corresponds
to EN12756 (DIN24960) L
1K
length. If the mechanical seal built in length is shorter than L
1K
the shoulder ring width must then be adapted to the correct built in length.
Assembly of a mechanical seal without set ring
2. Mechanical seal fixed on pump shaft by means of set screws
A. Sizes TG H2-32 and TG H3-32
To be able to assemble and to adjust those types of mechanical seal the jacket cover (0400)
and plugs (0460) must be removed as shown in the figure below.
In general the shoulder ring (2090) cannot be used because the fixed width of the shoulder ring
does not allow the narrow tolerances necessary for this type of mechanical seal.
Adjust first the rotating part of the mechanical seal and fix it on the pump shaft by means
of the set screws. Once adjusted and fixed the assembling can be continued as shown in the
figure. Seal the plugs (0460) with a resin sealant suitable for higher temperature (e.g. Loctite
648). Adjusting method is the same as for the bigger pumps and is described in the next
paragraphs.