Intended Use - 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
4.

Intended Use

The intended use as field of application of the DELTA RG4
modulating valve is the continuous control of liquid flows in beverage
and food technology as well as in the chemical and pharmaceutical
industry.
Arbitrary, constructive changes at the valve will influence safety as
well as the intended functionality of the valve and are not permissible.
Authorizations and External Evaluations
3-A Sanitary Standards, Inc.
ATEX (Directive 2014/34/EU)
5. Installation
- The DELTA RG4 must be installed in such a manner that the
product or the cleaning liquid can drain off the valve housing.
Priority should be given to a vertical installation.
- Attention ! Observe Welding Instructions.
5.1 Welding Instructions
- Before welding, the flanges must be dismantled from the valve
housing, just tacking or adjustment of the valves should be carried
out with fixed flanges.
- Welding may only be carried out by certified welders (DIN EN ISO
9606-1). (Seam quality DIN EN ISO 5817).
- The welding of the valve housings must be undertaken in such a
way that deformation strain cannot be transfered to the valve body.
- The preparation of the weld seam up to 3 mm thickness must be
carried out in butt manner as an square butt joint without air.
(Consider shrinkage!)
- TIG orbital welding is best!
- After welding of the valve housing or of the mating flanges and
after work at the pipelines, the corresponding parts of the
installation or pipelines must be cleaned from welding residues
and soiling. If these cleaning instructions are not observed,
welding residues and dirt particles can settle in the valve and
cause damage.
- Any damage resulting from the nonobservance of these welding
instructions is not subject to our guarantee.
- Welding directives for aseptic applications shall be drawn from the
AWS/ANSI Directives and EHEDG Guidelines.
UK
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