SENTRY Isolok SAG Thick Slurry Sampler

Isolok SAG works with compressed air and a controller to drive a piston into the process line, taking a fixed-volume sample each cycle; it can also be used on pressurized lines. It aims to provide highly representative samples from thick fluids such as raw municipal sewage sludge and waste acid while keeping the operator away from hazardous product.

• Its components are 316 stainless steel.
• 120 or 200 cc of sample is taken per cycle.
• Three models cover particle capacities of 6.3, 16 and 22 mm.
• Process pressure up to 21 bar; consult the manufacturer for high pressure.
• Sample temperature from -40 to 302 °C (depending on seal and duty cycle).

The manufacturer recommends cleaning the equipment about every six months, estimating seal replacements from the number of cycles and recording every fault.

Because the piston takes the sample from within the line and transfers it to a closed chamber, operator contact with the product during sampling is minimized. This feature is important for corrosive products such as acids and waste sludge.

At treatment and chemical plants, Tetra selects the right SAG model according to particle size, adapts port caps and container options to the project and carries out installation. Six-monthly cleaning and planning of seal replacement can be included in a service agreement.