Mode Of Operation; General Terms - SPX FLOW APV DELTA UF3 Instruction Manual

APV
APV_UF3 ATEX_UK-0_122018.indd
DELTA UF3/ UFR3
relief valve
A
7
5. Mode of Operation
5.1. General terms
The valve has been developed for use in the brewing and beverage,
dairy and food industries as well as for chemical and pharmaceutical
applications.
The valves are designed for universal applications and stand out
for their increased mechanical reliability and absolute ease of
service.
The DELTA UF3/UFR3 relief valve is used to prevent a desired
product pressure from being exceeded due to process requirements
or to discharge a certain product quantity.
If the preset opening pressure is exceeded, the valve is opened
automatically by the imminent line pressure in the supply line (A)
under the valve seat. The liquid is drained via the discharge line (B).
If the adjusted set value falls short, the valve is closed by spring
force.
C
The flow direction is always from A
Attention:
DIn the sense of the Pressure Equipment Directive 2014/68/EU, the
DELTA UF3/UFR3 relief valve is a "pressure-retaining component"
B
and is not a "component with safety function", i.e. the valve must
not be used as safety valve.
Proximity switches to signal the valve position can be installed in the
yoke area (C).
The use of valve position indicators which are approved for the
application in explosive atmosphere is compulsary.
The use and operation of valve position indicators shall be
evaluated by the operator of the installation!
Assembly, see chapter 12.5.4.
.
UK
B.
Relief Valve
DELTA UF3-ATEX
Instruction Manual UK-0