NON-PUSHER PTFE BELLOWS SEALS

Technical features

• Single seal
• Multiple springs
• Bi-directional
• PTFE bellows
• Externally mounted
• Replaceable seal face

Operating limits

• d1 = 19 – 75 mm, 0.750” – 3.000”
• p1 = 1.0 MPa
• t = -35 – 120 °C
• vg = 15 m/s

Materials

• Rotary faces: carbon graphite, filled PTFE, silicon carbide • Stationary seats: alumina ceramic, silicon carbide • Springs, clamps: AISI 304, 316 • Secondary seals, bellows: PTFE • Housing: filled PTFE

Stationary seats

• Clamp seats: LS1, TS1, TS2, TS3 (standard), TS4