1. Safety
8
PNEG-2023
Metric In-Line Mount and Cross-Cut Mount Flush Style Intermediate Discharge Gates
Correct Use
1. GSI Slide gates (RSG and ISCC) shall be used only for the control of material flowing into or out of
chain or belt conveyors.
2. Suitable materials may include:
a. Free flowing whole or crushed agricultural grains and may include milled materials, such as flours.
b. Free flowing, dry, non-flammable granular agricultural fertilisers.
c. Free flowing wood chip.
3. All other uses are precluded. In particular they shall not be used for:
a. Liquids, semi-liquids, sludges or slurries.
b. Volatile materials.
c. Coal, stone, sand or gravel.
d. Materials intended for immediate human consumption.
e. Fibrous materials or others prone to ‘hair-pinning’ or bridging.
4. When switching between materials being handled through the gates, care shall be taken not to
handle materials that are or may become incompatible with each other. The operator should be
aware that between successive uses, some material may remain in the gate.
Correct Installation
1. The installer shall ensure that the slide gate is installed in a location where it is free from any vibration
which could result in a potential ignition source or damage to the slide gate.
2. At all times, the moving parts of the gate (slide, shafts, chain drive, rack and pinion) shall remain
guarded or out of reach of personnel.
3. Where the gate is installed to allow free inlet or discharge (i.e., not connected directly to a conveyor)
the exposed inlet or outlet shall be fitted with a duct or spout which provides a safe distance between
the moving parts and any personnel. This includes moving parts in the conveyor as well as those in
the gate. Reference should be made to EN ISO 13857.
4. When providing protection referred in above step, the installer may need to add suitable guarding to
the outlet/inlet, where the dimensions of the spout/duct alone does not provide adequate protection.
5. Where the ATEX classification allows, the gates may be used in a potentially explosive area or on
the boundary of such areas. Refer to the rating plate
and to the declaration in
this manual for the limitations of such use.
6. When used in a potentially explosive environment, the installer has a responsibility to ensure that the
entirety on the installation, all connected machines, components, parts, controls and systems are
certified to the same or better classification and that the collection of machines, components, parts,
controls and systems does not reduce the rating or detract from the effectiveness of any ignition
source protection provided on the slide gate or other equipment.
7. The slide gate shall be accessible to facilitate cleaning, maintenance or repair. The system shall be
designed and installed so that it can be opened to provide access to the moving parts of the slide
gate, to allow access for cleaning. Note that some materials handled through the gate may become
adhered to internal parts and require removal to prevent further build-up and potential blockage.
