Product Description
Control head for decentralized automation of hygienic process valves
The Type 8682 control head offers all the functions required for modern decentralised automation of pneumatically operated hygienic and aseptic process valves. It handles the entire pneumatic control unit, valve position detection, feedback and diagnostic functions, right through to bus communication. Thanks to its universal design, the Type 8682 control head can be combined with all standard disk valves, ball valves and single-seat valves. Regardless of the valve manufacturer or model range, standardisation enables a consistent automation solution across the entire plant. Depending on the valve function and automation requirements, the various versions of the Type 8682 always offer the right solution: from the intelligent, non-contact position sensor, which continuously detects both end positions and any intermediate positions with high resolution, to the control head with an integrated pilot valve for single- or double-acting actuators. Certifications in accordance with ATEX, IECEx and FM allow for use in Ex Zones 1/21 and 2/22, and Class I/II Division I/II respectively. Thanks to several automatic teach functions, there is no need for any manual adjustments during commissioning. If necessary, the control head is commissioned during the ongoing process using the teach-in procedure. For easy on-site process monitoring, the coloured light ring indicates the position of the process valve, whilst the diagnostics/NAMUR LED provides additional device information, such as maintenance required or fault conditions. For use in the food & beverage and pharmaceutical & biotech sectors, these products meet stringent requirements for hygienic design, maximum IP protection, and chemical and mechanical resistance, ensuring the highest levels of reliability and durability.
Technical data
Device & function (4)
| Type |
8682 |
| Function |
Control head |
| Housing variant |
with pressure compensation element Standard in plastic |
| Displacement transducer type |
Internal rotative |
Sensors (2)
| Pressure sensor |
No |
| Acceleration sensor |
No |
Communication & electrical (3)
| Communication interface protocol |
ASi-3 aux powered |
| Electrical connection sort |
Plug - M12 4-pin |
| Electrical connection wire length |
800 mm |
Pneumatics (4)
| Valve position 1 |
3/2-way WWC |
| Exh. air valve pos. 1 thrott |
Yes |
| Flow rate valve position 1 |
110 nl/min |
| Pilot air for work connection 2/A1 integrated internally |
No |
Pneumatic connections (9)
| Port connection 1 type |
Internal thread |
| Port connection 1 thread type |
G |
| Port connection 1 thread marking |
1/8 |
| Port connection 2 type |
Internal thread |
| Port connection 2 thread type |
G |
| Port connection 2 thread marking |
1/8 |
| Port connection 3 type |
Internal thread |
| Port connection 3 thread type |
G |
| Port connection 3 thread marking |
1/8 |
Shipping & customs (4)
| Weight |
0,700 kg |
| Customs tariff number |
84819000 |
| Country of origin |
Germany |
| Export |
Not subject to export licensing |
Product benefits
- Automatic commissioning
- Contactless high-resolution valve position detection
- Bright, colour-coded status indicator and diagnostics/NAMUR LED
- AS-Interface, IO-Link Port Class A/B
- Approved in accordance with ATEX/IECEx/FM/CCC, Cat. 3GD/2GD, Cl I/II Div I/II
Your Benefits With Us
- Worldwide shipping of all valves and flow meters
- Large stock levels for many products – current lead time available on request
- Spare parts and service kits available
- Fast shipping via UPS (parcel) or freight forwarder (pallets), express delivery available on request
- Extensive hands-on application know-how
- Personal advice on selecting the right component
- Resellers receive volume-based discounts on request
- Large companies, public authorities and government agencies can order on account (request via our contact form)
