BALANCED ELASTOMER DIAPHRAGM SEA

Technical features

• Balanced
• Single spring
• Bi-directional
• Elastomer bellows
• YT813 available with machined head

Operating limits

• d1 = 1 – 4”
• p1 = 5.0 MPa
• t = -35 – 160 °C
• vg = 50 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

• OS1 (standard) • see page 47 for other O-ring mounted seats