General Terms - SPX FLOW APV DELTA RG4 Instruction Manual

APV
APV_RG4_UK-6_092017.qxp
Modulating Valve
DELTA RG4 - MFS + MFH
Instruction Manual: UK-rev. 6
1.

General Terms

This instruction manual should be read carefully by the
competent operating and maintenance personnel.
We point out that we will not accept any liability for damage or
malfunctions resulting from the non-compliance with this
manual.
Descriptions and data are subject to technical changes.
2. Safety Instructions
DANGER!
!
- The technical safety symbol draws your attention to important
directions for operating safety. You will find it wherever the
activities described are bearing riks of personal injury.
- Do not reach into the yoke area or into the actuating area
(valve positioner) when the valve is installed. Risk of injury by
sudden valve actuation.
- Electric or pneumatic lines must be disconnected before assembly
or disassembly of the valve (e.g. for seal exchange purposes).
- Do not reach into the valve body when the valve is dismantled.
Otherwise, observe the instructions given for the installed
valve state.
3. Mode of Operation
- Hygienic modulating valves DELTA RG4 are used for the
continuous control of liquid flows in beverage and food
technology as well as in the chemical and pharmaceutical
industry. Modulating valves are suited for the flow and
pressure control of liquids and gases.
- In its basic construction, the DELTA RG4 valve is designed as
corner valve and, thus, ensures a good diversion of liquid flows.
The flow direction is from A to B (see fig. 1).
- The body being free from dead spaces proves optimum cleaning
conditions. The crevice-free sealing of the individual parts of the
body is effected by profile seals, thus eliminating any source of
infection.
- The relation between flow and cone stroke is defined by the
characteristics.
- Different kvs values (flow) at certain nominal dimensions can be
reached by different inserts (valve seat / valve cone).
UK
2