UR620/40/60/80
UR620/40/60/80 Series
RETURN LINE FILTERS
s e r v i c e
i n s t r u c t i o n s
2
1 Specifications
Housing materials:
Head, tube, manifold
and check valve: Aluminium Alloy
Cover:
Cast iron
Maximum operating pressure:
28 bar (400 psi)
Proof pressure:
42 bar (609 psi)
Minimum burst pressure:
145 bar (2100 psi)
Element collapse:
UE619 element 10 bard (150 psid) differential minimum
Operating temperature range:
-29 °C to 120 °C (-20 °F to 250 °F) with fluorocarbon seals for
petroleum based and specified synthetic fluids
60 °C (140 °F) maximum in HWCF, water-oil emulsion or water glycol
Bypass valve setting options:
1.7 ± 0.3 bard (25 ± 5 psid) cracking pressure
4.5 ± 0.3 bard (65 ± 5 psid) cracking pressure
Non bypass
Seals:
Fluorocarbon
The actual operating conditions should be checked by the user to
ensure that the element, housing and all seals are compatible with the
fluid and application, and are within local safety codes. Please contact
Pall or approved distributor if further information is required.
2
Receipt of equipment
The filter housing, and any optional equipment, are packed
individually for assembly by the customer. Unpack carefully and
ensure optional items are not mislaid in packaging to be discarded.
3
General sources of information
3.1
For dimensions, operating parameters, assembly/element part
number, ordering information, notes, performance data and
specifications refer to datasheet IMUR610EN.
3.2
This equipment has been assessed in accordance with the
guidelines laid down in the European Pressure Directive
97/23/EC and has been classified within sound engineering
practice S.E.P. We hereby declare the equipment meets the
requirements of article 3, section 3, thus meeting the directive
requirements. Under the provisions of this directive the filter
assembly is suitable for use with group 2 fluids only.
3.3
Where under reasonably foreseeable conditions, including
external fires, the allowable limits could be exceeded, suitable
protective devices must be installed by the customer within
the connecting fluid system.
4
Installation of housing
4.1
The filter can be installed in any attitude, but for ease of
servicing, it is recommended that it be installed vertically with
the filter tube and cover pointing upwards.
4.2
The minimum clearance required for element removal of is
as follows:
4.2.1 443mm or 17.5” for length 20 and 951mm or 37.5” for
length 40 assemblies.
4.2.2 The UR6xx Housings are supplied without a filter
element. For element installation and servicing
procedures, refer to Section 7.
4.3
Threaded differential pressure devices, when fitted, must
be torque tightened to 30-33 ft/lb or 40-45 Nm. All visual
indicators must be clearly visible.
NOTE: Each UR620 housing is supplied with two machined
differential pressure warning device ports, one fitted with a bleed
plug, the other with a plastic shipping plug. For UR640, UR660
and UR680 duplexes, only the inner most housing has a plastic
shipping plug. If no differential pressure warning device is ordered,
the shipping plug must be removed and replaced with a ‘B’ type
blanking plug (P/N HA9000-P8-Kit Z) and torque tightened to 40
ft/lb /54 Nm.
NOTE: Never place the port plug in this port without first installing
uniform size -014 O-ring in lower O-ring groove, otherwise a
small bypass flow will result, allowing contaminant downstream
of the filter element.
4.4
Mount the filter assembly using the four 14.3 mm diameter
holes in the manifold assembly.
4.5
Use a check valve downstream of the filter if there is a
possibility of reverse flow.
4.6
Install the filter housing using additional piping/valving to
allow complete filter assembly bypass if filter maintenance is
required without system shutdown.
NOTE: Piping supports should be provided as close as is
practicable to the port connections in order to minimize external
loads. This filter assembly must not be electronically isolated
from the users earthing system. This filter assembly must be
earthed by connecting the users earthing system to one of the
inlet/outlet connections.
4.7
Connect lines or hoses to housing inlet and outlet ports.
Note: Painting of the filter housing is optional. The coating on the
filter housing is a suitable painting base. Cover the differential
pressure warning device and nameplate if painting of the housing
takes place.
CAUTION:
Maximum surge flow should not exceed 1.3 times
normal flow.
WARNING:
USE FITTINGS OR ADAPTORS COMPATIBLE WITH
PORTS SUPPLIED AS SHOWN BY PART NUMBER
ON NAMEPLATE AND NOTED IN DATA SHEETS:
USE OF INCORRECT FITTINGS OR ADAPTORS CAN
CAUSE FILTER HOUSING OR MANIFOLD FAILURE
RESULTING IN LOSS OF PRESSURE AND POSSIBLE
SYSTEM FAILURE OR PERSONAL INJURY.
CAUTION:
Reverse flow through filter element will cause damage.
CAUTION:
Never operate the filter unless both warning device
ports
are sealed.
