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Threaded Fittings

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Threaded Fittings and Pipe Fittings

Stainless steel threaded fittings are indispensable connecting elements in piping systems.

Important information on technical changes, applications, standards and guidelines

Stainless steel threaded fittings for hydraulic, fluid and process applications

Threaded Fittings are divided into two main groups:

 

  • Standard fittings such as nipples, sockets, reducers, plugs, caps, nuts, screw plugs, hose nipples, elbows, T-pieces, cross-pieces and B&O fittings

 

  • Fittings, interchangeable three-part fittings in straight, angled or T-design.

 

The fittings can be either conical sealing or flat sealing (standard: PTFE seal; other seals such as EPDM or Klingersil on request).

Gewindefitting, Rohrverschraubung, Fitting, Verschraubung

The threads comply with international standards, including:

 

  • DIN EN 10226-1 (ISO 7-1): Tapered Whitworth pipe thread for thread-sealing connections

 

  • DIN EN ISO 228-1: Cylindrical Whitworth pipe thread for non-thread-sealing connections

 

  • NPT (ASME/ANSI B1.20.1): American conical pipe thread for self-sealing fittings.

The threaded fittings are divided into the following types: nipples, couplings, reducers, plugs, caps, nuts, screw plugs, hose nipples, elbows, tees, crosses and arches. The interchangeable tube fittings according to DIN 2993 are divided into Straight, angle and T-fittings. They have conical or flat seals (flat seals PTFE, other types of seals on request).

The different types of threads (eg tapered Whitworth pipe thread to DIN 2999, cylindrical Whitworth pipe threads according to DIN ISO 228, NPT) and connection types (eg, pipe, hose connection, Welding end) round of the range. Furthermore, different qualities and materials are available (eg material no. 1.4571, 1.4408, 1.4404, 1.4301).

More pressure. More safety. More possibilities.

Are threaded fittings only for applications up to 50 bar? It’s time to redefine the limits.

We are expanding the operating pressure ranges of all Grade -7 threaded fittings to pressures of up to 250 bar, thereby also broadening their range of applications.

This allows our customers to benefit from greater safety margins, more flexibility in component selection, and simplified standardization of their product range.

Test Parameters

  • Pressure: Burst pressure
  • Temperature: 20 °C
  • Medium: Water

Safety

  • 4-fold safety

In our video, we demonstrate the burst pressure test for the GF-140FRG38-7. The pressure test confirms the fitting’s high load-bearing capacity and forms the basis for the extended pressure ratings. The permissible operating pressures for the respective threaded fittings depend on the specific design and operating conditions.

More pressure. More safety. More possibilities.

Are threaded fittings only for applications up to 50 bar? It's time to redefine the limits.

We are expanding the operating pressure ranges of all Grade -7 threaded fittings to pressures of up to 250 bar, thereby also broadening their range of applications.

This allows our customers to benefit from greater safety margins, more flexibility in component selection, and simplified standardization of their product range.

Test Parameters

  • Pressure: Burst pressure
  • Temperature: 20 °C
  • Medium: Water

Safety

  • 4-fold safety

In our video, we demonstrate the burst pressure test for the GF-140FRG38-7. The pressure test confirms the fitting’s high load-bearing capacity and forms the basis for the extended pressure ratings. The permissible operating pressures for the respective threaded fittings depend on the specific design and operating conditions.