STAUFF Safety Locking Plate (Type SIG – Standard Series)
STAUFF Safety Locking Plates (Type SIG – Standard Series) ensure optimal fastening of pipework systems in full compliance with DIN 3015, Part 1. Designed for use with Type AF stacking bolts, they provide structural stability in complex hydraulic applications. Their carbon steel or stainless steel construction ensures resistance in the most demanding environments.
The available product codes include the complete SIG range from Group 1 to Group 8.
The STAUFF Safety Locking Plates (Type SIG – Standard Series) are a fundamental component for the construction of stable and secure hydraulic systems. Designed to meet the rigorous technical specifications of DIN 3015, Part 1, these plates complement the pipe fastening system, ensuring precise alignment and consistent mechanical strength even under demanding operating conditions.
The primary function of the Type SIG safety locking plate is to interface with the Type AF stacking bolt. This combined system enables the creation of a modular structure in which the fastening elements work together as a single unit, reducing vibrations transmitted through the pipework. The use of this component prevents accidental bolt misalignment and ensures continuous fastening, a critical factor in preventing premature component failure or leaks within the hydraulic circuit.
The versatility of the SIG Standard Series is ensured by the availability of different material variants, which can be selected according to specific environmental and corrosion-resistance requirements:
The entire range is engineered to maintain the dimensional tolerances defined by DIN 3015, ensuring interchangeability with other components from the same STAUFF series.
Type SIG safety locking plates are used across all sectors of industrial and mobile hydraulics. Thanks to their compliance with the relevant standard, they are used in systems where vibration management and the mechanical stability of pipework are essential requirements. The “Standard Series” configuration covers STAUFF Groups 1 to 8, allowing a wide range of tube diameters to be accommodated while always ensuring uniform distribution of mechanical loads.
The compact design and dimensional precision allow rapid installation, reducing machine downtime during maintenance or the assembly of new systems. Compatibility with AF bolts, also available with metric (M) or UNC (U) threads, completes the fastening system and provides an integrated logistics solution for purchasing managers and design engineers.
Summary technical table of the main features of the STAUFF Safety Locking Plates (Type SIG – Standard Series).
| Feature | Value |
|---|---|
| Reference Series | Standard (DIN 3015, Part 1) |
| Type | SIG (Safety Locking Plate) |
| STAUFF Groups | From 1 to 8 |
| Material W3 | Carbon steel, zinc/nickel-plated |
| Material W4 | V2A stainless steel (1.4301/1.4305) |
| Material W5 | V4A stainless steel (1.4401/1.4571) |
| Related Components | Type AF stacking bolts |
Below is the complete list of standard codes (W3 material) for the various groups in the SIG series.
| STAUFF Group | Model | Standard Code (W3) |
|---|---|---|
| 1 | SIG-1 | SIG-1-W3 |
| 1A | SIG-1A | SIG-1A-W3 |
| 2 | SIG-2 | SIG-2-W3 |
| 3 | SIG-3 | SIG-3-W3 |
| 4 | SIG-4 | SIG-4-W3 |
| 5 | SIG-5 | SIG-5-W3 |
| 6 | SIG-6 | SIG-6-W3 |
| 7 | SIG-7 | SIG-7-W3 |
| 8 | SIG-8 | SIG-8-W3 |