WITT's Purchasing Policies

  • Customer satisfaction takes centre stage, whether internal or external.
  • We expect an established quality system e.g. conforming to DIN EN ISO 9001 or equivalent.
  • Our ambition is also our responsibility: no faults, on-time delivery, flexibility, a desire for improvement.
  • We can only meet the constantly rising demands of our customers by working with suppliers who constantly increase their performance.
  • Purchasing decisions are based solely on objective and comprehensible reasons.
  • We collaborate with our suppliers on a trustful and long-term basis. The key to such a collaboration is the punctual and flexible execution of our requirements, distinctive cost-consciousness, innovative ideas and teamwork in solving technical problems.
  • Becoming a supplier
  • Being a supplier
  • Our range of purchased products

We would like to get to know you. Please fill in the form below and send it by fax to +49 2302 8901-3. Or contact us by phone: +49 2302 8901-170.

WITT Supplier Questionnaire
Code of Conduct for Suppliers.pdf

WITT will protect your personal data and collect your data only for the purpose for which you provide it.

As an existing supplier of WITT you have the possibilty of cooperating actively. Please see further information below:

WITT Standard Requirements
General Purchasing Terms and Conditions
Code of Conduct for Suppliers.pdf

Turned and milled parts incl. surface finishing

  • Material: brass (85%), stainless steel (10%) and aluminium (5%)
  • Processing rods: diameter 3-200mm
  • Insert work pieces: diameter max. 100mm


Flame arrestors made of stainless steel/bronze

Filters made of stainless steel/bronze

Hot-forging parts made of brass

Elastomers (e.g. sheet materials, o-rings, moulding parts, stamping parts)

Pressure vessels according to Pressure Equipment Directive 2014/68/EU

  • Volume 20 - 4000 l
  • Material: steel and stainless steel
  • Pressure range 10 - 16 barG

Measuring and control technology

  • Solanoid valves
  • Mass flow controller
  • Pressure regulators
  • Pressure gauges

Ball valves

PCB assemblies

Sensors (Chemical, Paramagnetic, Zirconium)

Sheet metal housings and tailored blanks made of stainless steel

Electrical controls

DIN and standard parts



WITT Zentrale

Give us a call!

Headquarters: +49 (0)2302-8901-0
WITT UK: +44 (0)1925 234466

Send request Get call-back


WITT Zentrale

Give us a call!

Headquarters: +49 (0)2302-8901-0
WITT UK: +44 (0)1925 234466

Send request Get call-back

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