Multi Spring Seal – P-91/P-92

P-91/P-92 are multi spring, pusher type unbalanced seals used for universal applications. The seals are compact in design suiting all types of rotating equipments, pumps and mixers. Drive lugs in the retainer will provide torque transmission and reduce slippage on shaft and sleeve. A snap ring holds all components together, helping in easy installation. The parts are interchangeable, P-91 can be converted to P-92 by just changing the seal ring and the secondary member.

Seal Characteristics
  • Single Seal
  • Unbalanced
  • Independent of directions of rotation
  • General Chemicals
  • Petrochemicals · Refineries
  • Light hydrocarbons, Water
Performance Range
Shaft Diameter dl : 18…100mm
Pressure p : 10 bar (max)
Temperature t : -20…2200C
Velocity v : 20 m/sec
Seal Faces : Carbon, Ceramic, SiC, Tung. Carbide
Metal Parts : SS316, SS304, Hastelloy-C, Alloy 20
O-rings : Elastomers (P-91)
PTFE Wedge (P-92)
A – Seal Face
B – O-ring
C – Thrust ring
D – Spring
E – Retainer
F – Grub Screw
G – Snap ring
H – Stationary Seat
I – O-ring
J – Wedge