ThinkTop?_DeviceNetTM_11-25_VDC.pdf (0.91 MB)
ThinkTop?_AS-Interface_31_node_or_62_node.pdf (825.2 KB)
ThinkTop__Digital_8-30_VDC_PNP_NPN.pdf (874.87 KB)
The premium valve control unit
ThinkTop is an automated, valve-top pneumatic valve sensing and control unit that provides exceptional surveillance and control of the fluid handling process. Cost-effective and flexible, ThinkTop offers a single sensor solution for Alfa Laval butterfly, single-seat and mixproof valves.
Proven safe and effective
The inherently safe, automated design of the ThinkTop reduces human error and increases production efficiencies – no matter how tough the operating environment. These features contribute to process safety:
- No-touch, set-and-forget sensor system with up to three solenoid valves. Detects both the condition and position of the valve stem with an accuracy of ± 0.1 mm. Set-up parameters are stored but, for greater flexibility and ease of operation, can easily be re-programmed. Because the microchip sensors are moulded directly into the control head, they are less sensitive to the effects of temperature, vibration and pressure shock.
- Individual pre-set tolerance bands. No manual adjustment of feedback sensors is required; individual preset valve tolerance bands eliminate self-adjustment and ensure optimum operational reliability on any Alfa Laval sanitary air-operated valve. This helps prevent contamination and production failure as well as contributes to increased productivity, longer valve service life and more uptime.
- Five feedback signals increase the versatility of the valve sensing and control system and enable comprehensive valve record management data. ThinkTop features four feedback signals: for open position, for closed position, and for up to two integrated seat lifts or two external signals as well as one status signal for a total of five digital PNP/NPN feedback signals.
500 000 valve control units
Engineered for operation in virtually any environment, ThinkTop features a robust, durable and reliable valve sensing and control assembly. Its hygienic design withstands the effects of physical impact, pollution, frost, UV radiation and temperatures up to 85°C. Over the past decade, more than 500,000 units have provided continuous operation in processing plants around the world.
Completely watertight and IP66/IP67-compliant, ThinkTop features the superior GORE™ protective venting technology, which prevents water condensation and the penetration of dust, water and other particles into the control head. The control head can therefore be hosed down with water or cleaning fluid without putting important settings at risk. This contributes to maximum hygiene and effectively eliminates problems associated with corrosion and external contamination.
Retrofitting boosts performance
Upgrading older valve automation systems with advanced valve sensing and control technology can significantly lower investment, boost plant performance and cut operating costs. In many cases, the air-operated valve remains the same; only the replacement of the control head interfaces is required. Should upgrading require control head replacement, ThinkTop offers fast return on investment and long-term savings on operating and maintenance costs.
Caption: Upgrading increases reliability while lowering operating costs.