Teflon Bellow Seals

Standard Style:

Face Materials:      GFT / CFT / Silicon Carbide / Ceramic

Metal Parts:            SS 316, SS 304, Hastelloy-C

Springs :             Teflon Covered Spring Steel, S.S.316 , S.S.304 , Hastelloy-C

Secondary Seal:      PTFE Bellows


Extremely corrosive services

Seal Characteristics:

Single acting

Outside mounted

Multi Spring & Single Spring Design

Independent of direction of rotation

Operating Limits:

Shaft Diameter d1 : 19mm to 150mm
Pressure p : 6 bar (max)
Temperature t : -45 ....+1200C
Velocity v : 16 m/sec

Specially designed for extremely corrosive chemicals, including concentrated acids, salts, strong oxidising and reducing agents, and chemically active organic compounds. All components which come in contact with the liquid being sealed are made of chemically inert material. Metallic components clamping ring and springs are located outside the media. In this seal series Glass filled PTFE face is composite moulded with highly flexible PTFE bellows.