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Instrumentation Valves and DBB Valves for use with Fugitive Emissions Standard 1
  • Instrumentation Valves and DBB Valves for use with Fugitive Emissions Standard 1
  • Instrumentation Valves and DBB Valves for use with Fugitive Emissions Standard 2
  • Instrumentation Valves and DBB Valves for use with Fugitive Emissions Standard 3
  • Instrumentation Valves and DBB Valves for use with Fugitive Emissions Standard 4
  • Instrumentation Valves and DBB Valves for use with Fugitive Emissions Standard 5
  • Instrumentation Valves and DBB Valves for use with Fugitive Emissions Standard 6

Instrumentation Valves and DBB Valves for use with Fugitive Emissions

At AS-Schneider, we have been experts in the effective control of Fugitive Emissions from valves for more than a decade.

Our Instrumentation Valves and Process Valves are available acc. to ISO 15848-1 and the TA-Luft option acc. to the amendment (status 2021). Our extensive portfolio has been certified by TÜV Süd.

Products for use with Fugitive Emissions

In 2011, we already received the first ISO 15848-1 certificate and have thus basically met the requirements of the new TA-Luft for more than 10 years.

E Series Manifolds for use with Fugitive Emissions

Instrumentation Valves and DBB Valves for use with Fugitive Emissions Drawing (arrangement)

E Series Manifolds for use with Fugitive Emissions

Monoflanges for use with Fugitive Emissions

Instrumentation Valves and DBB Valves for use with Fugitive Emissions Drawing (arrangement)
Monoflanges for Use with Fugitive Emissions

VariAS-Blocks and Ball Valves for use with Fugitive Emissions

Instrumentation Valves and DBB Valves for use with Fugitive Emissions Drawing (arrangement)
VariAS-Blocks Products for use with Fugitive Emissions
Ball Valves for use with Fugitive Emissions

Double Block & Bleed Piping Ball Valves for use with Fugitive Emissions

Instrumentation Valves and DBB Valves for use with Fugitive Emissions Drawing (arrangement)
DBB Piping Ball Valves for use with Fugitive Emissions
Valves Head Unit for Fugitive Emission Applications
For use with Fugitive Emissions, we offer various Valve Head Units and Sealing Systems for our E Series Manifolds, Monoflanges, Ball Valves, VariAS-Blocks and Double Block & Bleed Piping Ball Valves. All Valve Head Units meet the requirements of ISO 15848-1 and TA-Luft (amendment of 2021).

Enclosed you will find an overview of our Valve Head Units for use with Fugitive Emissions:

          Standard-                      Needle Valve                       OS&Y Needle Valve                      Bellows Sealed 
     Valve Head Unit              ISO FE Type 1&3                                                                              Head Unit
      ISO FE Type 4                                                               

Instrumentation Valves and DBB Valves for use with Fugitive Emissions Drawing (arrangement)
Sealing Systems for Use with Fugitive Emissions

AS-Schneider offers a variety of ISO 15848-1 solutions that comply with the new TA-Luft 2021. Since the tightness class is defined in the TA-Luft, this cannot be selected.

However, in order to find the optimal solution, the following must be considered:

( 1 ) Chemical resistance

Check possible restrictions regarding the seal material (PTFE, Graphite, FKM Elastomer, Bellows). It is important to ensure that the selected seal material meets the specific requirements of your application.

( 2 ) Endurance class

TA-Luft does not give any specific information on the endurance class, but it requires that testing and maintenance of sealing systems must be specified in management instructions in order to ensure leak-tightness in the long term. To save this effort, AS-Schneider valves are designed to be maintenance-free under certain conditions.

For example, instrumentation valves with strength class CO1 (205 mechanical cycles) can be considered maintenance-free over a period of 30 years if they are operated no more than 7 times per year (205 cycles / 30 years = 6.8 cycles per year).

If a higher frequency of operation is required, a solution with a higher strength class should be selected.

( 3 ) Pressure and temperature

Make sure that the certified pressure and temperature range of the valves is sufficient for your specific application. It is essential that the valves can withstand the operating conditions to ensure reliable and safe operation.
Available TA-Luft Sealing Systems and their Classification for Use with Fugitive Emissions
The performance data listed below were certified by a type test in accordance with ISO 15848-1 in the presence of TÜV Süd and therefore also meet the requirements of the TA-Luft amendment 2021.
AS-Schneider Type Sealing Material Max. Pressure Temperature Range Endurance Class /
Mechanical Cycles

Screwed-in Valve Head Units

E Series PTFE 420 bar -29°C to +82°C C01 / 205
207 bar -29°C to +93°C C02 / 1,500
E Series Graphite 420 bar -29°C to +82°C C01 / 205
ISO FE Type 1* FPM-O-Ring + Graphite Packing 420 bar -29°C to +200°C CO1 / 1,500
ISO FE Type 3 PTFE / Carbon filled PTFE 420 bar -29°C to +200°C CO1 / 1,500
ISO FE Type 4 Graphite Packing 420 bar -50°C to +400°C CO1 / 205
OS&Y Valve Head Units

ISO FE Type 1 (OS&Y)

FPM-O-Ring + Graphite Packing 420 bar -29°C to +200°C CO1 / 205
ISO FE Type 3 (OS&Y) PTFE / Carbon filled PTFE 420 bar -29°C to +200°C CO1 / 2,500
ISO FE Type 4 (OS&Y) Graphite Packing 420 bar -50°C to +400°C CO1 / 205
Bellows Sealed Valve Head Units
Bellows Metallic Bellows with
Safety Stuffing Box.
250 bar Meets the requirements of the
TA-Luft without proof.
Ball Valves
KB1-, KB3-, KC1-, KC3-
with XCE-Sealing System
Carbon filled PTFE 420 bar -29°C to +40°C CO1 / 205

KB2-, KB4-, KC2-, KC3-
with XCD-Sealing System

Primary Seal:
Carbon filled PTFE and
Graphite Packing
420 bar -29°C to +40°C C01 / 205
VariAS-Blocks

VariAS-Block with
XCD-Sealing System

Primary Seal:
Carbon filled PTFE;
Graphite Packing

420 bar -29°C to +200°C CO1 / 205

VariAS-Block with
XCE-Sealing System

Primary Seal:
Carbon filled PTFE and
PTFE Packing

420 bar -29°C to +200°C C01 / 205

* In this version, the packing was retightened 1x in the specified temperature range during the test.
   No readjustment was required in the temperature range -29°C to +40°C.

Useful Information on the TA-Luft

Detailed information on the subject of TA-Luft and the TA-Luft amendment (2021) can be found on our blog page. In our blog, we regularly keep you up to date with technical articles on numerous key topics relating to TA-Luft and TA-Luft applications. Browse through the numerous TA-Luft blog articles and enjoy being inspired and expanding your knowledge.


Our recommendation to you:
 Sign up for the newsletter oday so that you will no longer miss any new blog articles. Enclosed is an excerpt from the current blog articles on the topic of TA-Luft and the TA-Luft amendment (2021):

Instrumentation Valves and DBB Valves for use with Fugitive Emissions Drawing (arrangement)
TA-Luft amendment – What will change for you as a plant planner and plant operator in the area of valvesIn this article we give you an overview of the TA-Luft amendment and explain the specificities and requirements applicable to industrial valves. Furthermore, we analyze the changes to the old TA-Luft to identify challenges and solutions.TA-Luft amendment – What will change for you as a plant planner and plant operator in the area of valves
Instrumentation Valves and DBB Valves for use with Fugitive Emissions Drawing (arrangement)
New chemical plant complies with TA-Luft amendment in the field of valves Case study describes the challenge engineers faced in choosing valves to meet the TA-Luft amendment during the construction of a new plant.New chemical plant complies with TA-Luft amendment in the field of valves
Instrumentation Valves and DBB Valves for use with Fugitive Emissions Drawing (arrangement)
Impact of revision of the TA-Luft on the valve industry

The revised TA-Luft Emission Standard refers to ISO 15848-1 to protect the general public and the neighborhood. And to prevent harmful effects on the environment caused by air pollution. All that in order to achieve a high level of protection for the environment as a whole. In our blog article, we explain what impact this change will have on the valve industry.

Impact of revision of the TA-Luft on the valve industry
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