Abstract: A chemical blending system having more than one chemical blending vessel (12, 12') with inlets at the top. A pair of automatic inlet valves are connected to the top of each chemical blending vessel, one with a large inlet orifice and one with a relatively much smaller inlet orifice. At least two chemical batch tanks are connected to the pair of automatic inlet valves and chemicals to be mixed are delivered there at high speed by pumps. Weight cell devices (30) are attached to the bottom of each blending vessel. A controller/computer is connected for the automatic control of pumps (28, 36) and valves (20, 50, 58). A discharge line is connected to the bottom of blending vessels and to a receiving station, and includes pulsation dampeners (38), filters (40) and static mixers (42). A sampling device (46) is connected a recirculation line for the sampling of the blended chemical during recirculation and prior to delivery.

Abstract: A clean connection and sampling apparatus (10) and method for creating a controlled environment for the transfer of chemicals has an isolation means for providing an isolated area (14) capable of being cleaned. A first connection means (16) for connection to a supply of chemicals to be transferred is provided and a second connection means (18) for transferring the chemicals from the isolation means to a receiver for said chemicals is also provided. A sampling means is located within the isolation means for sampling the chemical prior to transfer to the receiver. A pass-through means (22) is provided for receiving a sample from within the isolation means and isolating the sample from the isolation means prior to transfer of the sample outside of the isolation means for analysis.

Abstract: A multi-product sampling mechanism (10) having a clean valve (36), a sample cabinet (40) connected to the clean valve (36), and a utility cabinet (12) connected to the clean valve (36) and the sample cabinet (40) for controlling and cleaning the operation of the clean valve (36) and the sample cabinet (40). In a preferred embodiment, the sample cabinet (40) includes connection blanks (80) for the connection of additional sample cabinets (40) so that, if desired, more than one particular type of product or chemical can be received exclusively at a designated sample cabinet (40). Additionally, in a preferred embodiment, the clean valve (36) is connected a spacer connection (32) for connecting the clean valve (36) to a bulk-storage tank at the receiving facility. The spacer connection (32) is also connected to the utility cabinet (12).