VAZEL - seal seat type 11

Type 12
Type 13
Type 14
Type 15
Type 16
Type 17
Type 18
Type 19

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CROSS-SECTION OF AN INSTALLED SEAL SEAT TYPE 11

GENERAL DESCRIPTION

This type of seal seat consists of a ring with "L" shape section, it has a gasket mounted in the outside diameter which can be a square ring or an o' ring as required, once installed the gasket fits into the counterbore and rests on its end face keeping the seal seat totally insolated, in other words the seal seat is "floating", that is why this type of seal seat is known as floating type. If gasket is made of an elastomeric material not only can absorb low vibrations, but also keeps the seal seat from rotating, if it is made of a rigid material (PTFE or exfoiled graphite) a small slot is made at the rear side of the seal seat, in the same way a pin must be inserted in the counterbore end face so that during installation the pin is fitted into the slot to avoid the seal seat to rotate.

APPLICATIONS

Because of its simple design, easy installation, and because gasket can be made of elastomeric or rigid material this type of seal seat can be used in almost any general application.
It can be a very suitable alternative for seal seats Type 13 and Type 15 if gaskets are needed to be of rigid materials such as PTFE and exfoiled graphite.

TECHNICAL DATA

This type of seat was designed to be the stationary part in the mechanical seal unit and is to be mounted on the stuffing box or gland counterbore of the pump.
Pressure
-Without anti-rotation pin: up to 290 psi (20.40 kg/cm²) in all sizes.
-With anti-rotation pin: up to to 550 psi (38.60 kg/cm²)* in all sizes.
* In some cases, under special arrangements, up to 1200 psi (84.30 kg/cm²)
Temperature range depend on the materials of construction.

MATERIALS OF CONSTRUCTION

SEAL SEAT:	Ceramic Several Grades, Stainless Steel, 17-4 pH temp. Steel, Ni-Resist, Cast Iron, Carbon and Silicon Carbide.
GASKET:	Buna, Viton®, Neoprene, Ethylene Propylene (E.P.R.), PTFE and Exfoiled Graphite.
	Notes: - materials not listed above can be supplied on demand. - viton is a registered trademark of DuPont Dow Elastomers.

INSTALLATION DIMENSIONS

All dimensions are in inches meeting ANSI specifications. Also available in metric sizes meeting DIN standards. For non-standard inch and metric sizes or sizes greater than listed below please contact us.

A = Shaft diameter

B = Bore diameter

C = Box depth

D = Seal seat length