Installation; Welding Instructions - SPX FLOW APV DELTA SDMS4 Instruction Manual

APV
APV_SDMS4_UK-0_112017.indd
Double seal valve with diaphragm and ,,fan support"
DELTA SDMS4
Instruction Manual UK-rev.0
7.

Installation

7.1. General terms
Installation has to be done in such a way that fluids can drain
off the valve housing and is preferably to be realized in vertical
position.
Attention: Observe welding instructions.
7.2.

Welding Instructions

- Before welding of the valve, the valve insert and the leakage valves
must be dismantled from the housing. Careful handling to avoid
damage to the parts is necessary.
- W elding should only be carried out by certified welders (DIN EN ISO
9606-1) (Seam quality DIN EN ISO 5817).
- Welding of the valve housings must be undertaken in such
a way that the valve body is not deformed.
- The preparation of the weld seam up to 3 mm thickness must be
carried out as a square butt joint without air. (Consider shrinkage!)
TIG orbital welding is best!
- A fter welding of the valve housings 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 non-observance of these welding
instructions is not subject to our guarantee.
- For aseptic applications observe Welding Directives according to
AWS/ANSI and EHEDG.
UK
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