Soft seated piston sampling valve


Soft seated piston sampling valve 608N

Our soft seated piston sampling valve :

Dead space free, well suited for viscous and polymerizing fluids

Combines good tightness and crust breaking function, for non abrasive fluids

DN 10 to DN 200
3/8" to 8"
PN 10 to PN 100
acc. to DN
150 to 600 Lbs acc. to DN

Type: 608

Functions – Soft seated piston sampling valve

♦ feeding valve : installed on side walls or upright
♦ sampling valve : at tank bottom or side / on a piping spool piece for injection

Construction – Soft seated piston sampling 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 – Soft seated piston sampling valve

  • Service conditions: High pressure, High temperature, Low temperature, Abrasion, Corrosion, High viscosity, Vacuum, Dead space free
  • Types of fluids: Liquids, Gas, High viscosity fluids
  • Applications: Fine chemicals, Plastics and polymers, General chemicals, Petrochemicals

Features & Options

Soft seated piston sampling valve 608N

DN 10 to DN 200
3/8" to 8"
PN 10 to PN 100
acc. to DN
150 to 600 Lbs acc. to DN


♦ polished piston
♦ soft piston/seat tightness (with packing rings)
♦ flush or extended piston on request
♦ rising non turning stem with outside screw up to DN 32 inclusive, turning non rising above
♦ position indicator
♦ 60° outlet
♦ bolted stuffing-box, live loaded with spring washers
♦ solid connection flanges
♦ in compliance with PED 97/23/EC


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

straight piston

Options – Soft seated piston sampling valve

– adaptation to any type of connection
– other outlet angle
– contoured piston to match the tank or line profile (no dead area)
– crust breaking function
– firesafe design
– heating jacket
– FDA grade gaskets and packings
– leak detector at stuffing box
– interchangeable seat
– inside and/or outside polishing
– additional draining and/or cleaning nozzles
– stroke limit or proximity switches
– manual override for pneumatic actuator
– dry air actuator
– stainless steel pneumatic actuator
– pneumatic actuator with stroke damper if trip time > 50 mm/s
– actuator locking system (safety)
– manual operator with locking mechanism
– chain handwheel
– manual operator extension, if required 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