Information
Page 4
1. General Information
The following instructions will help you achieve a satisfactory installation of your Roloid gear pump,
Roloid pumps are of simple design using a minimum number of moving parts ensuring that if correctly installed
will provide the best possible conditions for a long and trouble free operation.
All units are tested and checked prior to despatch, a great deal of care is taken in packing and shipping
arrangements to ensure that the unit arrives at the customer in the approved condition.
2. External Protection
All Roloid gear pumps are provided with protection against normal weather conditions. Where pumps are to
operate in extreme conditions, or where they are to stand for long periods without running, e.g. during plant
construction, consult our application engineers so that arrangements for adequate protection can be made.
3. Reading the Nameplate
3.1 Unit Identification
When requesting further information, or service support quote the following information from the nameplate:
•
Pump Size and Rotor
•
Serial number / Year of Manufacture
3.2 Pump Unit Rating
The flow capacity rating (litres/min) pump speed (rpm) and operating pressure are marked on the nameplate –
Check that these details match the requirements of the machine prior to installation
3.3
Group/Category
Only pumps specifically selected for use in a potentially explosive atmosphere will be factory engraved with
the Ex group/category.
4. The
Marking
Roloid pumps with marking are specifically selected for use as a component of an industrial system
operating in a potentially explosive atmosphere
Provided the pump is correctly selected, Ex marked and installed in accordance with these instructions it will
comply with the EU directive 94/9EC (ATEX 100a)
Pumps must be selected by our application engineers for use only in the following potentially explosive
atmospheres:
Hazard Group II Cat 2 (zones 1 & 21) or Group II Cat 3 (zones 2 & 22) Temperature class T3, T4 or T5
Motors, couplings, or any other equipment fitted to the pump must also comply with this directive.
If the pump is supplied as a motorised package it is important to check the nameplates of both the pump and
the motor (or any other equipment fitted) corresponds with the classification of the potentially explosive
atmosphere in which the unit is to be installed.
