10.260.32.0007
5.7. CHECKING AND REVIEW
Perform the following checks before using the valve:
- check that the clamps and nuts are tightened,
-
if the valve is fitted with a pneumatic drive, apply the compressed air several times checking to
make sure that the valve carries out the opening and closing action without difficulty.
5.8. WELDING
Welding work should only be done by qualified persons who are trained and equipped
with the necessary equipment to perform this kind of work.
All welded joint shall have full penetration, be free of pits, folds, crevices, cracks and misalignments;
and may have an as-welded interior surface finish as per AWS/ANSI D 18.1. The weld discoloration
in the as-welded condition shall be either weld 1, 2 or 3 as shown in AWS/ANSI D 18.2 or weld No
1,2,3,4, or 5 as shown in EHEDG Guideline 35.
To perform the welding works:
- disassemble the valve as indicated in chapter
8.4. Disassembly and assembly the valve
,
- weld the valve body to the pipes maintaining the distance indicated in the following table,
dimension A. This will allow for disassembly of the valve, doing the subsequent reviews and
changing the necessary valve pieces like seals, bushings, etc.
DN
A (mm)
10
290
15
285
20
285
½’’
290
¾’’
285
A
10.260.32.0008
Installation
11
INOXPA S.A.U.
10.260.30.01EN · (A) 2022/09