Single seal. ch.over valve DCX3-DCX4

Features

• Fitted as standard with a floating PFA valve seal that can be cleaned and offers outstanding tightness at high temperatures and good resistance to chemical products
• Dismountable pneumatic valve actuator that can be easily transformed into NO (Normally Open), NC (Normally Closed) or DA (Double Acting)
• Connection of actuators and shut-off units with clamps for easier maintenance and offering a variety of options
• Spherical body with thick walls guaranteeing excellent resistance to expansion constraints and offering a variety of configurations: + - T - L - L/L - T/L

Materials

• Body:  stainless steel 1.4404 / 316L
• Shut-off unit: stainless steel 1.4404 / 316L
• Valve seal: floating PFA - EPDM, fluorinated elastomer (FKM) or silicon
• Other seals: EPDM - fluorinated elastomer (FKM) or silicon
• Operating devices: stainless steel 1.4301 / 304

Service conditions

• Max. temperature: +140^oC/+284^oF
• Min. temperature: -5^oC/+23^oF
• Max. working pressure: 8 bar (800 kPa)/116 psi
• Actuator air supply pressure: min. 5.5 bar (550 kPa) /80 psi; max. 8 bar (800 kPa)/116 psi
• Vacuum resistance: 0.4 cm³/s

Connection types / Standards

• Welded / SMS - DIN - US standard
• Threaded / SMS - DIN
• Liner-nut / SMS - DIN
• Clamp / US standard

Options

• Elastomer seal tightness
• Long stroke for maximum valve disengage