Stationary Seal Seats for Mechanical Seals

Mating Rings ~ O-rings ~ Cup Mounted

For optimal working conditions choose the right stationary seat. Styles and face combinations must be considered carefully to avoid down time, undue leakage or out right damage to pump seal.

Consult with one of our knowledgeable technical sales representative with your requirements to assure the best stationary seat to suit your application.

NES A Seal Pump Seat

NES A

Equal to Burgmann G9

SPEC. chart in Metric

NES A-1 Seal Pump Seat

NES A-1

Equal to John Crane BD

SPEC. chart in Metric

NES A-3 Seal Pump Seat

NES A-3

Equal to Eagle LN

SPEC. chart in Metric

NES A-5 Seal Pump Seat

NES A-5

Equal to Duro RO

SPEC. chart in Metric

NES B Seal Pump Seat

NES B

Equal to Burgmann G6

SPEC. chart in Metric

NES C Seal Pump Seat

NES C

Equal to Burgmann G16

SPEC. chart in Metric

NES D Seal Pump Seat

NES D

Equal to Burgmann G60

SPEC. chart in Metric

NES E Seal Pump Seat

NES E

Equal to Burgmann G606

SPEC. chart in Metric

NES F Seal Pump Seat

NES F

Equal to John Crane BP

SPEC. chart in Metric

NES G Seal Pump Seat

NES G

Equal to John Crane BO

SPEC. chart in Metric

NES H Seal Pump Seat

NES H

Equal to Burgmann G13

SPEC. chart in Metric

NES I Seal Pump Seat

NES I

Equal to Burgmann G4

SPEC. chart in Metric

NES J Seal Pump Seat

NES J

Equal to Burgmann G50

SPEC. chart in Metric

NES K Seal Pump Seat

NES K

Equal to Vulcan 10 - 20

SPEC. chart in Metric

NES L Seal Pump Seat

NES L

Equal to Vulcan 11 / 22

SPEC. chart in Imperial

NES M Seal Pump Seat

NES M

Equal to DIN LONG

SPEC. chart in Metric

NES N Seal Pump Seat

NES N

Equal to DIN SHORT

SPEC. chart in Metric

NES P Seal Pump Seat

NES P

Equal to John Crane AG

SPEC. chart in Imperial

NES Q Seal Pump Seat

NES Q

Equal to John Crane BS

SPEC. chart in Metric

NES R Seal Pump Seat

NES R

Equal to John Crane M

SPEC. chart in Metric

NES S Seal Pump Seat

NES S

Equal to John Crane NG

SPEC. chart in Imperial

NES T Seal Pump Seat

NES T

Equal to John Crane WG

SPEC. chart in Imperial

NES U Seal Pump Seat

NES U

Equal to John Crane WM

SPEC. chart in Imperial

NES V Seal Pump Seat

NES V

Equal to Vulcan/Eagle 43

SPEC. chart in Metric

NES X Seal Pump Seat

NES X

Equal to Eagle LA

SPEC. chart in Metric

NES Y Seal Pump Seat

NES Y

Equal to Eagle LE

SPEC. chart in Metric

NES Z Seal Pump Seat

NES Z

Equal to John Crane PG

SPEC. chart in Imperial

A mechanical seal consists of a stationary seat and a rotating head. The head rotates with a pump shaft while the seat is statically sealed to a non-moving cover. The stationary part of the seal is the non-rotating primary seal ring mounted in the gland plate, pump housing or other motionless structural part of the rotating equipment. A stationary seat also called Mating Ring is capable of joining seal parts together to prevent leakage.

Primary sealing takes place where the rotating and stationary faces are in near contact. Mechanical seals leak by design, albeit controlled leakage and must do so to work properly.

Stationary face materials include ceramics, carbon and ni-resists. For extra resistance against abrasive conditions use silicon carbide or tungsten carbide seat face.