Sectoriel 734 XS, Инструкции по сборке и обслуживанию

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736-746XS VALVE WITH SF SWITCH BOX
Information given as an indication only, and subject to possible modifications
SECTORIEL S.A.
45 rue du Ruisseau
38290 SAINT QUENTIN-FALLAVIER
– FRA NCE
Telephone: +33 4 74 94 90 70 - Fax: +33 4 74 94 13 95
www.sectoriel.fr / Email : sectoriel@sectoriel.fr
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Ref. SF ENG
Rev. 03
Date 06/2020
o
Hydraulic test of the installation
o
Valves were tested at the factory at 1.5 x WP.
o
If a hydrostatic test is carried out on the installation, do not exceed the authorised pressure.
2 - Service
o
If a hot fluid flows across the valve, do not touch the valve surface.
o
Always operate the valve slowly and smoothly.
o
Opening clockwise, closing anti-clockwise.
3 - Servicing
3.1 - Frequency of servicing
o
The servicing frequency depends upon the use of the valve, of the type of fluid, of its velocity, of its
frequency of operation, of the cycles of rise and fall in pressure and temperature.
o
Before any intervention, isolate the upstream and downstream pipe installation using the valves
provided for this purpose. Depressurize the pipe installation and bring it to ambient temperature.
o
If the lever has to be removed, do that before disassembling the body.
o
To remove the central body, unscrew the tie-bolts symmetrically. Then gently remove the central part
avoiding to drop the ball.
o
To remove the ball from the body, turn the stem by a quarter turn.