Valve modification & valve construction

Armaturenfabrik Valve modification of industrial valves, ball valve butt weld ends extension and welding for ball valves and other valves

Standard-compliant construction and adaptations for new fittings

For us, valve construction and modification means the targeted adaptation of new standard valves to your individual operating conditions. All valves are purchased at the customer’s request and modified in our factory in accordance with standards – for maximum functionality and process reliability.

Valve factory Valve modification Valve construction Manufacturer Reconstruction Painting Flange Flanging
Armaturenfabrik Schmutzfaenger 380 Angled seat Manufacturing Modification Differential pressure pressure gauge Wika Bypass

Why valve modification?

Standard-compliant design

Adaptations according to EN 1092-1, ASME B16.5, EN ISO 1127 and ISO-5211.

Individual customization

We modify new fittings to your exact specifications.

Extended application possibilities

Adaptation to special media, nominal pressures and automation requirements.  

Highest quality

All work is carried out in our factory by experienced specialists with years of experience.

Made in Germany

Uniform quality standards

Our services in the field of valve modification

We extend the application limits of your new fittings – among other things by:

Flanging

of ball valves, non-return valves and valves

Extend butt weld ends

according to EN ISO 1127

ISO 5211 interfaces

for automation

Mounting limit switches and position switches

electromechanical or inductive

Change or modify sealing systems

for special media

Ball degassing hole

for ball valves

Turning tongue and groove / protrusion and recess

for flanges

Bypass and differential pressure indicator

for valves and strainers

Pipe parts with groove for Victaulic systems

Installation of safety and locking systems

Examples of valve modification

Armaturenfabrik Valve modification of industrial valves, conversion, extension with flanges, flanging, ball valve, 3-part ball valve

Flanging of 3-part straight-through ball valves

We equip supplied 3-part straight-way ball valves with high-quality welding neck flanges. The design complies with DIN EN 1092-1, type 11 with sealing surface form B1 – precise and standard-compliant.

Technical data:

  • Nominal sizes: DN10 to DN200
  • Nominal pressures: PN40 / 150 lbs standard
  • Material:
    • Steel, primed black
    • Stainless steel, pickled and passivated
Valve factory Valve modification of industrial valves, conversion of a 3-part straight-way ball valve, ball valve

Converting 3-way ball valves

We convert 3-part straight-way ball valves (body only, without ball) made of steel or stainless steel into a 3-way ball valve.

Technical data:

  • Nominal sizes: DN15 to DN100
  • Nominal pressure: PN40
  • Max. Differential pressure: 6 bar
  • Flanges: from DN65 in PN16
  • Material:
    • Steel, primed black
    • Stainless steel, pickled and passivated
Valve factory Valve modification of industrial valves, flange sealing surfaces, conversion

Machining flange sealing surfaces in accordance with DIN EN 1092-1

We manufacture precise sealing surfaces on DIN flanges and undertake the turning of tongue / groove on blind flanges or welding neck flanges, projection and recess in accordance with DIN EN 1092-1.

Technical data:

  • Nominal sizes: DN15 to DN200
  • Material:
    • Steel, primed black
    • Stainless steel, pickled and passivated
  • Flange types:
    • DIN EN 1092-1, type 05 (blind flange)
    • DIN EN 1092-1, type 11 (welding neck flange)
  • Sealing surfaces:
    • Form C (spring)
    • Form D (groove)
    • Form E (projection)
    • Form F (return)

Valve construction

Special fittings according to customer requirements

In addition to classic modifications, we also manufacture special fittings according to individual specifications. Examples:

  • Flue gas dampers in special designs.
  • Y-strainers made of stainless steel or special materials.
  • Pot dirt trap with quick-release fastener for filter cleaning without tools.
  • Measuring flanges, thermometers / manometers holders.
  • Pump feet for suction pumps.
  • Angle seat valves with sensor especially for steam packs in the tire industry.
  • Ball valves / compact ball valves, butterfly valves, sediment pots, condensate pots.

Technical details

Flange machining

DIN EN 1092-1 Type 05 (blind flange), Type 11 (welding neck flange)

Sealing surfaces

Form C (tongue),
D (groove),
E (projection),
F (recess)

Nominal sizes

DN10 to DN200,
PN40 / 150 lbs

Material

Steel (primed black) or stainless steel (pickled and passivated)

FAQs

What is valve modification?

The targeted adaptation of new standard fittings to special operating conditions, standards or automation requirements – directly in our factory.

No, we work exclusively with new fittings that are organized and adapted to customer requirements.

EN 1092-1, ASME B16.5, EN ISO 1127 and ISO-5211.

Yes, we install ISO 5211 interfaces, limit switches, position switches and actuators.

Pump feet, flue gas flaps, measuring flanges, strainers, sediment pots and customized adapters.

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