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

♦ tank or reactor bottom outlet valve
♦ tank bottom control 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 futher flowing

Fabrication – Tank bottom 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 – Tank bottom valve

• 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

Features & Options

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)

Operation

handwheel,double acting pneumatic actuator,single acting pneumatic actuator,hydraulic actuator,electric actuator,air cylinder.

Closing device

disc

Options – Tank bottom valve

– adaptation to any type of connection
– “tank safe” design with double disc
– disc with double tightness system (PTFE/metal + metal/metal seated disc)
– profiled disc to fit the tank or pipe contour (no dead areas)
– disc with aluminium seating surface
– disc o’ring
– removable seat
– o’ring on body extension (no dead areas)
– vacuum tight
– stem bellows
– temperature sensor through disc
– additional draining and/or cleaning nozzles
– heating jacket
– firesafe design (certified)
– FDA grade gaskets and packing rings
– leak detector at stuffing box
– inside and/or outside polishing
– stroke limit or proximity switches
– side mounted pneumatic actuator
– manual override for pneumatic actuator
– stainless steel pneumatic actuator
– actuator locking in closed position (safety)
– manual operator with locking mechanism
– chain handwheel
– extended manual operator, optionally with cardans
– manual operator mounted on ISO base for later adaptation of motor
– electric actuator with local / remote controls
CAUTION : some options are not compatible