Alfa Laval Unique Sampling Valve - Double Seat Valve
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Alfa Laval Unique Sampling Valve - Double Seat Valve
The Alfa Laval Unique Sampling Valve (Double Seat) is a hygienic double-seat sampling valve designed for sterile, representative sampling in sanitary process environments. It offers high accuracy, exceptional repeatability and excellent reliability required for high-quality, cost-effective sampling. Operation is controlled either via an ergonomic handle or using an actuator. It is possible to sterilize the entire seat between sampling, thereby eliminating the risk of cross-contamination. This double-seat sampling valve is specially designed for use in hygienic applications across the dairy, food, beverage, brewery, pharmaceutical, personal care and many other industries.
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How does Double Seat Valve work? |
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| The Unique Sampling Valve with double seat design is engineered for applications requiring superior cleanability. Its patented double-seat mechanism allows for higher cleanability and sterilization of the valve seat and pipe connections. Designed for truly sterile sampling, the double-seat sampling valve has three positions: open, shut and sterilization. Open position Manual valve: rotate the handle counter-clockwise to open the valve. Pneumatic valve: open the air supply air to the open connection. This retracts the valve stem and membrane seal and enables the product to flow freely through the open valve. Shut position Manual valve: rotate the handle clockwise. Pneumatic valve: shut off the air to the open connection. Sterilization position: Manual valve: rotate the handle clockwise to the steam position. Pneumatic valve: apply air to the steam connection. This extends the valve head’s inner spindle into the inner seat and stops product flow in the valve port. At the same time the outer spindle of the valve head retracts and lifts the membrane seal away from its normal seat. The hard-to-reach areas on the seat surface are now exposed, ensuring thorough sterilization and making the Unique double-seat sampling valve a solid and reliable choice for 100% representative sampling. |
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