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12. Using 6" tube or pipe, discharge the airlock into the customer's desired location. Ensure
that all NFPA standards are met. The discharge pipe should be installed vertically with a
maximum of a 20° slope. This ensures that dust will flow through spouting using only
gravity.
13. For ease in maintenance install all compression couplings facing the same way.
(a) This creates minimal movement when removing any couplings.
14. When installing the camlock couplings, ensure that the dust cap is installed and clamped
on, before applying silicone to the piping and installing the camlock coupling.
15. Install Electro-Static Hazard warning labels on the piping at all the pick up points.
16. Install the chain from the dust cap to the camlock couplings.
17. Install explosion ducting outside of the facility.
(a) Ensure that the duct is no longer than 16 inches. If it is, please contact the Walinga
Representative.
18. Walinga would like to remind the owner of this piece of equipment, that in order to be in
accordance with NFPA 652-Chapter 7, a Dust Hazards Analysis (DHA) must be
completed.
Notes:
Customers may have different discharge options making every installation unique.
•
◦ Refer to the system design drawing for every install.
Dust free 2 cubic yard dust bin which can be installed under the discharge.
•
A selection of different electrical options are available for the customers.
•
◦ NEMA 4 or NEMA 12 starter control panel complete with starters for both blower and
airlock drive motors. The panel will include a relay to control the optional slide gate.
◦ Custom panels are available.
◦ Note: As a rule, Walinga Central Vac systems are equipped with Toshiba 3 phase
electric motors. Please refer to the sales contract for voltage and HP requirements,
or contact your local Walinga representative.
◦ All electrical connections must be made by a certified electrician in
accordance with local electrical codes.
"It is the responsibility of the owner/operator of facilities in which explosion
vents are utilized to comply with the requirements of the AHJ, which is typically
the use of National Fire Protection Association ("NFPA") Standard 68. Owners /
operators must deploy an appropriate number and configuration of vents;
ensure vents are installed where activation will not cause personal injury or
unacceptable property damage; and ensure vents are not adversely affected by
process conditions or conditions on the non-process side of the vent. Seller's
installation and operating instructions shall be followed by the Buyer."
R-1: March 17, 2018
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