GOK 500EAZ, Assembly And Operating Manual, Page: 25 / 144

Single conduit filter and double conduit filter with plastic filter cup
Part no. 13 852 51 a 9 / 16
Installation of filters is permissible:
• In fuel oil consumer installations in a single conduit system with return supply with
type 500 ERAZ and in a double conduit system (suction) with the types 500 ZAZ.
• In fuel oil consumer installations in a single conduit system, in central oil supply systems
(ZÖV) and as pre-filters in pipe systems with type 500 EZ, it is possible that an additional
shut-off fitting must be installed upstream of the filter.
•
Above and below the oil tank crown.
• In piping with an operating pressure PO thanks to the pump installed, the filter should be
selected according to the specified maximum admissible pressure PS depending on the
filter cup.
As a result of thermal expansion in blocked piping – e.g. due to a non-return valve
being installed – pressures which are higher than the maximum admissible pressure
PS may occur, we recommend the installation of a safety device to protect against
overpressure in suction lines e.g. a pressure compensation valve type DAV7
Part no. 15 550 00 or a pressure compensation valve type DAV7P in pressure lines
Part no. 15 550 15.
In piping with excess pressure, a filter installation location underneath the oil tank
crown or for temperatures >+60°C as well as for possible static build-up, the use of a
metal filter cup or the replacement filter is recommended!
Static build-up is possible at high flow rates.
Pressure line
Within the scope of application of the Industrial Safety Regulation (with TRbF 50), the
filters must be arranged above the tank crown and, additionally, above a collection
area or above an oil containment basin with protective equipment which switches off
the pump in the event of an oil leak. Due to inspections, the filters should be installed
in the oil line in easily accessible areas.
ASSEMBLY
Before assembly, check that the product is complete and has not suffered any damage during
transport.
Installation, maintenance and start-up may only be carried out by companies that are
specialist companies
for this work in terms of Section 62 of the German Ordinance on
Facilities Handling Substances Hazardous to Water (AwSV).
Connection assembly
Female thread G 3/8 or G 1/2 acc. to
EN ISO 228-1, as screw-in opening G 3/8-UA-O
acc. to EN 12514-4 Figure D.1
O-ring dimensions 14x2 mm, included with
delivery
Screw-in connectors, type B acc. to EN ISO 1179-
4 or EN 12514-4 Annex C (adequate with type A
acc. to DIN 3852-2)
The recommended maximum torque with steel
screw-in connector is 15 Nm