ELASTOMER DIAPHRAGM SEALS

Technical features

• Unbalanced
• Single spring
• Bi-directional
• Elastomer diaphragm

Operating limits

• d1 = 12 – 120 mm, 0.500” – 4.750”
• p1 = 2.0 MPa
• t = -35 – 160 °C
• vg = 20 m/s

Materials

• Rotary faces: carbon graphite, silicon carbide, tungsten carbide • Stationary seats: alumina ceramic, silicon carbide, tungsten carbide • Bellows, secondary seals: CR, EPDM, FPM, FEPM, HNBR, NBR • Springs, other matel components: AISI 304, 316

Stationary seats

• YT802: CS3 (standard) • YT803: CS2 (standard), OS1 • see page 47 for other cup mounted and O-ring mounted seats