Our bellows sealed gate valve :
Excellent tightness provided by the double disc with ball and socket design ; full bore
Bellows sealed stem, for all fluids up to 400°C (752°F)
| DN 10 to DN 900 |
| 3/8" à 36" |
| PN 10 to PN 50 | 150 to 300 acc. to DN |
Type: 709
Functions - Bellows sealed gate valve
♦ on/off valve : for tanks, reactors or process line
Construction - Bellows sealed gate valve
- Construction materials: Carbon Steel (CS), Stainless Steel (SS), Duplex & Super Duplex, Inconel & Incoloy®, Titanium, Zirconium, Uranus® B6, Tantalum, Nickel, Hastelloy®, Monel
- Construction methods: Fabricated (Welded), Cast
Uses - Bellows sealed gate valve
- Service conditions: High temperature, Low temperature, Corrosion, High viscosity, Vacuum
- Types of fluids: Liquids, Liquids with solid particles – Slurry, Gas, High viscosity fluids
- Applications: Plastics and polymers, General chemicals, Petrochemicals, Nuclear and Naval / Submarine, Cryogenic service
| DN 10 to DN 900 |
| 3/8" à 36" |
| PN 10 to PN 50 | 150 to 300 acc. to DN |
Features
♦ bidirectional sealing by metal/metal discs to seat contact
♦ double discs with ball and socket joint for optimum tightness
♦ primary external tightness by stem bellows
♦ secondary tightness by live loaded, bolted stuffing-box
♦ full bore
♦ travel position indicator
♦ integral connection flanges
♦ PED 97/23/EC compliant
Operation
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
discs
Options - Bellows sealed gate valve
- adaptation to any type of connection
- hard faced seating surfaces according
- vacuum tightness
- additional draining and/or cleaning nozzles
- seats cleaning with steam
- heating jacket
- firesafe design
- FDA grade gaskets and packing rings
- leak detector
- stroke limit or proximity switches
- dry air pneumatic actuator
- manual override for pneumatic actuator
- stainless steel pneumatic actuator
- actuator locking in closed position (safety)
- manual operator with locking mechanism
- extended manual operator, optionally with cardans
- manual operator mounted on ISO base for later adaptation of motor
- electric actuator with local / remote controls
- body by-pass system according to DN/Class
CAUTION : some options are not compatible