Velcon VF-61 Installation Instruction

VEL1956R12 0119 PN09-1013
www.velcon.com
VF-61 INSTALLATION INSTRUCTIONS
DESCRIPTION
Th e Parker Velcon VF-61 fi lter housing is designed to
operate with various Aquacon
ter elements in a wide variety of applications. Th e fi lter
housing is shipped with no cartridge installed.
Cartridges must be ordered separately. See back page
for cartridge selection table.
Connections Size: 1-½" Female NPT
Housing Pressure Rating: 150 psi
NOTE: LIQUID SERVICE ONLY. DO NOT use or leak test
this fi lter vessel with compressed air or other gases.
IMPORTANT SAFETY PRECAUTIONS
• To protect the fuel system, including the
VF-61 and other components, BE SURE TO
INSTALL PRESSURE RELIEF VALVE(S).
• MAKE CERTAIN FILTER HOUSING IS
COMPLETELY VENTED BEFORE
OPENING HOUSING.
• To prevent electrical buildup and discharge -
use a grounding wire to place a bonding loop
from the drain valve to a point on the metal
framework of the vehicle or skid. Th is pro-
vides a continuous bond. Before draining the
vessel, electrically bond a metal container to
the drain valve using a grounding wire.
Th en drain the fuel into the bonded
metal container.
INSTALLATION PROCEDURES
Install the housing at a convenient point in the line.
Note "Inlet" and "Outlet" markings on the cast head
which indicate direction of fl ow. DO NOT install the
housing backwards.
NOTE: Fuel weeping from the inlet or outlet 1-½" NPT
connections sometimes occurs when regular pipe dope
is used while plumbing the vessel. In time, it appears
that the leak is from the O-ring at the bolted closure. To
prevent weeping, we recommend a product like Loctite
No. 59231 "Pipe Sealant with Tefl on
Install the ½" NPT petcock drain valve which is
shipped loose in the shipping carton. Use Tefl on
on the drain valve threads. An optional ½" NPT carbon
steel ball valve, part number 554Y020, is available at
extra cost.
® , coalescer, or microfi l-
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tape
Provide room for the housing shell to clear the cartridge
during change-out.
A good practice is to install a diff erential pressure gauge
so that the diff erential pressure across the housing can be
monitored. Th is allows accurate determination of when
the cartridge should be changed. Part number 10678, as
described on Differential Pressure Gauge Assembly In-
stallation Instructions (Form VEL1715R8 1013 PN 09-880)
is a diff erential pressure gauge specifi cally designed to be
used on VF-61.
For AQUACON CARTRIDGES USED in AVIATION
FUEL or DIESEL FUEL SERVICE, ALWAYS INSTALL a
DIFFERENTIAL PRESSURE GAUGE or other means of
determining the diff erential pressure. For diesel fuel
service, fl ow rate should be kept between 15 and 50
gpm. Consult Velcon for other fl ow applications.
On systems where pressures can exceed 75 psi, a pres-
sure bypass around the pump should be installed to
protect the cartridge and the system from a high pres-
sure shock or sudden cartridge seal-off due to a slug of
water in the product.
Valves ahead of and behind the housing may be re-
quired to isolate it during cartridge change-out.
CARTRIDGE CHANGE-OUT INFORMATION
OS Series Fuel Service: Th e OS Series coalescer car-
tridge has an O-ring at the bottom of the cartridge. Th is
O-ring seals to the inside of the housing. Th e cartridge
fi ts tightly into the bowl and will require fuel or oil pre-
lubrication to insert into the bowl.
DRAIN SUMP at EVERY FUELING
Th e cartridge should be replaced whenever one of the
following events occurs fi rst:
• When the diff erential pressure exceeds 15 psi
• After 1 year of service
• Th e fl ow signifi cantly reduces
• Th e diff erential pressure steadily climbs and
then begins to decrease
After changing cartridges circulate fl ow through vessel
for at least 3 minutes, use millipores to check for fi bers
and also check hose end strainers.
For Aviation Fuel Service: Please refer to cartridge
Operating Procedures that are supplied with each
cartridge shipment.
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Aerospace Filtration Division
VF-61 Installation Instruction
Parker Hannifi n Corporation
Aerospace Filtration Division
1210 Garden of the Gods Road
Colorado Springs, CO 80907 USA