Cartridge Double Acting

Standard Style

Face Materials:      Carbon , Ceramic, Silicon Carbide, Tungsten Carbide, Lecrolloy

Metal Parts:            SS 316, SS 304, Carbon Steel, Hastelloy-B,Hastelloy-C, Monel, Alloy - 20

Secondary Seal:      Inboard - PTFE, GFT : Outboard - Elastomers

For Top / Side Entry Agitators, Vessels and Mixers Double Acting, Independent of Direction of Rotation


l Petrochemicals and its vapours

l General Chemicals and its vapours

l Light hydrocarbons and its vapours

Seal Characteristics

Double acting Back to Back Seals


Cartridge Unit

Independent of Direction of Rotation

Operated with Pressurised Barrier Fluid

Operating Limits

Shaft Diameter d : 25 .....150mm*
Pressure p : Vacuum .... 35 bar (max)
Temperature t : Amb. ... 2000c (max)
Shaft speed n : 600 rpm. (max)
Barrier fluid pressure : Vessel pressure + 1.5 bar
Factory assembled cartridge units used on mixtures, agitators and reaction vessels. The seals are designed for handling severe services including products emitting toxic vapours during reaction process. The design incorporates bearing located very close to the seal. This standard feature effectively arrests the shaft whip for smooth and trouble free operation enabling enhanced seal life. The cooling jacket, also a standard feature, helps to maintain cool environment around the seal. Large clearance between rotating shaft/sleeve and mating ring permits higher deflection of the shaft, invariably associated with top entry agitators.