Tank Bottom Valves - Guichon

For all liquids, powder, gas. Optional stem bellows for dangerous medium

DN 20 to DN 400
3/4" to 16"
PN 10 to 250 acc. to size
150 to 1500 Lbs acc. to DN

Functions – Tank bottom valve

Operating principle – Tank bottom valve
Shutter: Disc or piston with vertical move
Rising disc or Disc lowering into body to open
Process/Atmosphere sealing with stuffing bow (repackable in service)
Body designed for further flowing


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


Service conditions : High pressure, High temperature, Low temperature, Abrasion, Corrosion, Vacuum
Types of fluids : Liquids, Liquids with solid particles, Gas, Powder and powdery media, High viscosity fluids
Applications : Fine chemicals, Plastics and polymers, General chemicals, Petrochemicals


DN 20 to DN 400
3/4" to 16"
PN 10 to 250 acc. to size
150 to 1500 Lbs acc. to DN

Sealing system

Disc sealing by PTFE-to-metal contact for a service temperature up to 180°C or by metal-to-metal contact.
Tank connection by means of counter flange
External tightness by means of bellows (see options list)


hand-wheel, double acting pneumatic actuator,single acting pneumatic
actuator, hydraulic actuator, electric actuator, air cylinder.
Closing device disc


CAUTION: some options are not compatible

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