MATERIALS OF CONSTRUCTION
Contact parts: - 316 stainless steel
- Silicone rubber, Viton or EPDM
- Other materials on request
Non contact parts: - 304 grade stainless steel
- Other materials as required.
The FreeGlide® is specially designed and engineered so that powder is kept out of the
bearings by a special flexible membrane - this means the sampler will not jam
The sample is collected in a cup and so is not physically altered by the sampling process
When the sampling cup is retracted the full bore of the downpipe is available for powder flow
The FreeGlide® is made from FDA acceptable materials and is easy to strip down for cleaning
When the FreeGlide® is not in use the full bore of the downpipe is
available for powder flow.
The sampling cup is extended into the downpipe to catch the
product as it falls.
The sampling cup is then retracted and inverted. The powder
sample falls down the discharge chute to where it is collected
In order to keep the sampler in good working order, regular maintenance is required
and this should be recorded and kept as a record.
All maintenance personnel who carry out the maintenance on the sampler should be fully qualified.
Recommended weekly maintenance
Visually inspect the Diaphragm for wear*
Visually inspect the Closing Plug for wear*
Visually inspect the Quadrings for wear*
Inspect filters for damage
Confirm that there is an earthing route from the cup to the Tee Piece (see section 5.3)
Confirm that there is an earthing route from the Tee Piece to the downpipe (see section 5.4)
Visually check that the sampler is making a good seal with the inside face of the product chute when
in the extended and retracted positions.
* Polymer components must be viewed as consumable parts and replaced at the first signs of wear.
There are no components on this sampler assembly which require lubrication.
5.3 Earthing (Grounding) Check – Inside Sampler
Ensure that the resistance between the cup and the Tee Piece is less than 1 Ohm.
The FreeGlide is fitted with phosphor bronze bearings; these provide a constant metal to metal earthing path
through the equipment. There is no adjustment possible by the the customer.
If the resistance is greater than 1 Ohm, then the inner workings of the sampler are electrically isolated.
The device must not be reinstalled until it has been properly investigated.
Earthing (Grounding) Check – to surrounding equipment
Ensure that the resistance between the Tee Piece and the Downpipe (i.e.
surrounding equipment) is less than 1 Ohm.