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TA-Luft compliant Instrumentation Valves and DBB Valves Standard 1
  • TA-Luft compliant Instrumentation Valves and DBB Valves Standard 1
  • TA-Luft compliant Instrumentation Valves and DBB Valves Standard 2
  • TA-Luft compliant Instrumentation Valves and DBB Valves Standard 3
  • TA-Luft compliant Instrumentation Valves and DBB Valves Standard 4

TA-Luft compliant Instrumentation Valves and DBB Valves

Our E Series Manifolds, Monoflanges as well as our Ball Valves and VariAS-Blocks are available with the TA-Luft option according to the amendment (status 2021).

Our extensive TA-Luft compliant portfolio has been certified by TÜV Süd.

TA-Luft amendment 2021

On December 1, 2021, the amended Technical Instructions on Air Quality Control (TA-Luft) came into force. It sets strict limits for pollutant emissions from plants subject to immission control approval.


The most important change in valve specifications is the adoption of the ISO 15848-1 standard, which specifies how a valve is to be tested and gives the parameters for classification.

After the transition period expires in 2025, the requirements must generally meet the state of the art and thus the emission level of new plants. For plants in the planning or installation phase, care must be taken to ensure that valves, pumps, compressors or even flange connections directly comply with the specifications of TA-Luft.

Our TA-Luft compliant Product Portfolio

TA-Luft compliant E Series Manifolds

TA-Luft compliant Instrumentation Valves and DBB Valves Drawing (arrangement)
TA-Luft compliant E Series Manifolds

TA-Luft compliant Monoflanges

TA-Luft compliant Instrumentation Valves and DBB Valves Drawing (arrangement)
TA-Luft compliant Monoflanges

TA-Luft compliant VariAS-Blocks and Ball Valves

TA-Luft compliant Instrumentation Valves and DBB Valves Drawing (arrangement)
TA-Luft compliant VariAS-BlocksTA-Luft compliant Ball Valves
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 and VariAS-Blocks. All Valve Head Unit are TA-Luft compliant according to the TA-Luft amendment of 2021.

Enclosed you will find an overview of our TA-Luft Valve Head Unit:

Needle Valves acc. to                                OS&Y Needle Valve acc. to                Bellows Sealed Head Unit acc.    
TA-Luft 2021 and ISO 15848                    TA-Luft 2021 and ISO 15848            to TA-Luft 2021 and ISO 15848

TA-Luft compliant Instrumentation Valves and DBB Valves Drawing (arrangement)
TA-Luft compliant Sealing Systems

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

Are there restrictions on the seal material (PTFE, Graphite, FKM Elastomer, Bellows)?

( 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

Is the certified pressure and temperature range sufficient for the application?
Available TA-Luft Sealing Systems and their Classification
The performance data listed below has been certified by a type test according to ISO 15848-1 in the presence of TÜV Süd.
AS-Schneider Type Sealing Material Max. Pressure Temperature Range Endurance Class /
Mechanical Cycles

Screwed-in Valve Head Units

ISO FE Type 1* FPM-O-Ring + Graphite Packing 420 bar -29°C to +200°C CO2 / 1,500
ISO FE Type 3 PTFE / Carbon filled PTFE 420 bar -29°C to +200°C CO2 / 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 CO3 / 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):

TA-Luft compliant Instrumentation Valves and DBB Valves 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
TA-Luft compliant Instrumentation Valves and DBB Valves 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
TA-Luft compliant Instrumentation Valves and DBB Valves 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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