Mit Ihrer Einwilligung analysieren wir die Nutzung unserer Website mit Tracking-Technologien und Cookies, um die Website optimal gestalten und fortlaufend verbessern zu können. Die Einwilligung ist freiwillig und kann jederzeit widerrufen werden. Weitere Informationen hierzu finden Sie in unserer Datenschutzerklärung.
Deutsch
Kontakt
Monoflansche und VariAS-Blöcke
Allgemeine Merkmale
Valves acc. to ISO 15848
We can offer the full range of our VariAS-Block Series tested and certified according to ISO 15848-1. These valves are designed to reduce fugitive emissions for environmental protection.

Standard Design

  • Optimized Needle / Stem Seal
  • Special Treated Gland for Long Service Life
  • Glands adapted to Stem Seal
  • Tested and applicable for use up to 200°C (392°F)
  • Production Test according to ISO 15848-2 available on request

Your Benefits

  • Reliability due to Type Testing and Certification by third party inspection
  • Several Stem Seals meet the requirement of ISO 15848-1, Edition 2006. These are more stringent than these of the current Edition 2015.
  • Also Needle Valves are tested and certified according to ISO 15848-1.
  • Graphite Packed VariAS-Blocks according to ISO 15848-1 meet also the requirements for Fire Safe according to ISO10497 / API 607.
  • ISO 15848-1 Valves also comply with the requirements of TA Luft 2002.
Absperrventile gemäß ISO 15848

Screwed Bonnet
– Type 1 O-Ring Needle Seal + Graphite Packing
   Type 3 PTFE Packing

Features

  • 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 or Graphite plus FKM O-Ring Needle Seal – RGD resistant (RGD = Rapid Gas Decompression)
  • Max. allowable (Working) Pressure (PS): 420 bar (6,092 psi)
  • Anti-Tamper Valve Head Options available
  • All Non-wetted Parts in 316 Stainless Steel
  • Types also comply with the requirements of TA-Luft 2002
ISO FE Performance Data

Tightness Class for VariAS-Blocks at Room Temperature (RT) (-29°C to 40°C [-20°F to 104°F])
Double Block & Bleed (Ball / Needle / Ball)

Ball Seat Packing Ball Valve Packing Needle Valve Tightness Class
C01
205 Cycles*
C02
1,500 Cycles
C03
2,500 Cycles
Reinforced PTFE PTFE PTFE / Reinforced PTFE Class A Class A Class B
Reinforced PTFE Graphite Graphite / FKM O-Ring Class A Class B
PEEK PTFE PTFE / Reinforced PTFE Class A Class A Class B
PEEK Graphite Graphite / FKM O-Ring Class A Class B
Reinforced PTFE Lip Seal Graphite / FKM O-Ring Class A Class A Class A
PEEK Lip Seal Graphite / FKM O-Ring Class A Class A Class A
Reinforced PTFE O-Ring Graphite / FKM O-Ring Class A Class A Class A
PEEK O-Ring Graphite / FKM O-Ring Class A Class A Class A
Metal Seated Graphite Graphite / FKM O-Ring Class A Class B

* Several Stem Seals meet the requirement of ISO 15848-1, Edition 2006. These are more stringent than these of the current Edition 2015:
– Tightness values are reduced from Edition 2006 to 2015 by the factor of 10.
– Numbers of cycles are reduced from 500 to 205.

Note: The above mentioned table is only valid for Double Block & Bleed Valves (Ball / Needle / Ball). For other types please contact the factory.

Tightness Class for VariAS-Blocks at 200°C (RT to 200°C [-RT to 392°F])
Double Block & Bleed (Ball / Needle / Ball)

Ball Seat Packing Ball Valve Packing Needle Valve Tightness Class
C01
205 Cycles*
C02
1,500 Cycles
C03
2,500 Cycles
Reinforced PTFE PTFE PTFE / Reinforced PTFE Class B On request
Reinforced PTFE Graphite Graphite / FKM O-Ring Class B Class B On request
PEEK PTFE PTFE / Reinforced PTFE Class B On request
PEEK Graphite Graphite / FKM O-Ring Class B Class B On request
Reinforced PTFE Lip Seal Graphite / FKM O-Ring Class B On request
PEEK Lip Seal Graphite / FKM O-Ring Class B On request
Reinforced PTFE O-Ring Graphite / FKM O-Ring Class B On request
PEEK O-Ring Graphite / FKM O-Ring Class B On request
Metal Seated Graphite Graphite / FKM O-Ring Class B Class B On request

* Several Stem Seals meet the requirement of ISO 15848-1, Edition 2006. These are more stringent than these of the current Edition 2015:
– Tightness values are reduced from Edition 2006 to 2015 by the factor of 10.
– Numbers of cycles are reduced from 500 to 205.

Note: The above mentioned table is only valid for Double Block & Bleed Valves (Ball / Needle / Ball). For other types please contact the factory.

Copyright © 2015 Armaturenfabrik Franz Schneider GmbH + Co. KG. Alle Rechte vorbehalten.