Flowserve SB Control Valves Manual de usuario descargar pdf (Pagina 3)

ShearStream SB FCD VLENIM4152-01 07.09

4. Installation

Before installing the valve, ensure that

the pipework is

free from impurities

, that the pipe ends between which

the valve is to be installed are parallel and are correctly

aligned, and that the distance between the pipe ends

corresponds to the valve length, including gaskets.

The

valve could not be used for forcing together or aligning

incorrectly pipes

as this will cause loads on the valve

and pipe which may lead to difﬁ cult damages during

operation. See Fig. 3.

Wrong installation Correct installation

Fig. 3.

nsure that the pipe ends align and have the correct distance

ShearStream SB

valves can be installed in any position

However, we recommend the direction of ﬂ ow which

is shown by an arrow on the valve body. The sealing

performance of the valve is limited if the ﬂ ow is in the

opposite direction.

We also recommend that the valve is mounted with

the stem pointing vertically upwards when the valve is

installed in a horizontal run of pipe.

The pipes should be supported on each side of the

valve

, in order to relieve the valve of loads and avoid

vibrations.

Locate the valve so that it will be easily accessible

for

inspection and service, particularly if the valve is equipped

with a pneumatic actuator and valve positioner.

5. Flange Gaskets

Gaskets with sizes according to ANSI B16.5, Table E1

Figure E2, SS 359 or DIN 2690 are recommended.

6. Starting up

Before starting up, ﬂ ush the pipework - with all valves

in the open position - so that any impurities that may

damage the sealing surfaces of the valve and impede its

operation will be ﬂ ushed away.

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Flowserve SB Control Valves Manual de usuario Pagina 3

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