Double Disc Throught Conduit Gate Valve (DDTCGV)


Parallel seated gate valve w. substituting ring 708

Our Double Disc Throught Conduit Gate Valve (DDTCGV) :

Through conduit design, no retention areas, no pressure loss.

Low wear of sealing surfaces.
Steam overpressure in body to prevent product entry

DN 150 to DN 600
6" to 24"
PN 10 to PN 50
150 to 300 lbs

Type: 209

Functions – DDTCGV

♦ shut off valve for in-line installation

Construction – DDTCGV

  • Construction materials: Carbon Steel (CS), Stainless Steel (SS)
  • Construction methods: Fabricated (Welded), Casted


  • Service conditions: High temperature, Low temperature, Abrasion, Corrosion, High viscosity, Vacuum, Low acoustic signature, Dead space free
  • Types of fluids: Liquids with solid particles, Gas, Powder and powdery media, High viscosity fluids, gas whith solid particules, particules, cracked gas, coke
  • Applications: Petrochemicals, Plastics and polymers, General chemicals

Features & Options

Parallel seated gate valve w. substituting ring 708

DN 150 to DN 600
6" à 24"
PN 10 to PN 50
150 to 300 lbs


♦ bi-directional tightness by metal-to-metal seat/gate contact
♦ thrusts on body to prevent jam of gate during operation
♦ spring washers on stem to absorb possible overtorque and protect seats and gate
♦ at full opening, fully unimpeded flow enabled through substituting ring
♦ through conduit design, no retention area, circulation of cleaning devive (pigging) enabled
♦ bolted stuffing box, self-adjusted with spring washers
♦ PED 97/23/EC compliant


Handwheel,double acting pneumatic actuator,single acting pneumatic actuator (limited by size/pressure class and/or stroke),hydraulic actuator,electric motor,air motor

Closing device


Options – Parallel seated gate valve w. substituting ring

– adaptation to any type of connection
– hard faced seating surfaces
– additional body nozzles for draining and/or steam cleaning
– removable bottom for body cleaning
– firesafe design
– leak detector at stuffing box
– stroke limit or proximity switches
– dry air actuator
– pneumatic actuator with manual override
– stainless steel pneumatic actuator
– actuator locking system (safety)
– manual operator with locking mechanism
– extended manual operator, optionally with cardans
– manual operator mounted on ISO base for later adaptation of actuator
– electric actuator with local/remote controls
CAUTION : some options are not compatible