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Monoflanges and VariAS-Blocks
General Features
Standard Needle Valves

Screwed Bonnet
– Needle Seal: Packing


  • Integral Valve Seat – Metal to metal seated
  • Non-rotating Needle
  • External Stem Thread – Packing below stem threads.
    Stem threads are protected from process media (non-wetted).
  • Stem with Cold Rolled Threads
  • Blow-out Proof Needle
  • Back Seat – Metal to metal secondary needle seal
  • Lock Pin – Eliminates unauthorized removal of the bonnet
  • Color Coded Dust Cap for operating thread protection
  • Needle Seal:
    Standard Packing in PTFE and Graphite or Carbon filled PTFE – TA-Luft Option
  • Max. allowable (Working) Pressure (PS): 420 bar (6,092 psi)
     – 689 bar (10,000 psi) optional
  • Anti-Tamper Valve Head Options available
  • All Non-wetted Parts in 316 Stainless Steel

Standard Isolate Valve Standard Vent Valve

Components Carbon Steel Stainless Steel Exotic Alloys
Material / Material No.
Body A 105
resp. LF2
316 / 316L Alloy 400 Alloy C-276 Duplex UNS S32750 UNS S32760 Alloy 625 6Mo
Bonnet 316 / 316L
Needle 316 / 316L
Pipe Plug 316 / 316L
Valve Stem 316 / 316L
Gland 316
Packing PFTE or Graphite
Stem Nut/Yoke 316
Lock Nut 316
Set Screw 316
T Handle 316
Lock Pin A4 (316)

Wetted components listed in bold.
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