TP80-40/4 Shaft Seals Manual

Table Of Contents

Type designation

Shaft seals

Position 4 codes

Position 4 of the mechanical shaft seal variant code

shows the secondary seal material.

The following codes can be shown in position 4:

Example of shaft seal variant code

Example of variant code for a complete pump type des-

ignation.

The shaft seal code indicates that the pumps are provided with an

O-ring seal, type H, cartridge, a rotating SiC face, a stationary SiC

seat and a secondary EPDM seal.

Code Material

E EPDM

FFXM

VFKM

KFFKM

M PTFE-sheathed O-ring

P NBR (nitrile rubber)

S Q (silicone rubber)

TPTFE

X Other elastomers

Example H Q Q E

Balanced O-ring seal with fixed seal driver

(cartridge type)

Rotating SiC face

Stationary SiC seat

Secondary EPDM seal

Example CRN 32 -4 -2 -A -F -G -E HQQE

Type range

Rated flow [m

/h]

Number of impellers

Number of reduced-diameter

impellers (if any)

Code for pump version

Code for pipework connection

Code for materials

Code for shaft seal