4
1 XH 70 en
1.4
Specifications
Face-to-face length:
ASME B.16.10
Table 4
long pattern
Body rating:
ASME Class 900
Max. pressure differential:
see Fig. 4
Temperature range:
-50°…+425 °C
-58 °...+797 °F
Tightness:
Bi-directional or uni-
directional depending
on seat construction
metal seated
ISO 5208 Rate C or Class V
soft seated
ISO 5208 Rate B or Class VI
Dimensions:
see tables in Section 11
Weights:
see tables in Section 11
1.5
Valve approvals
XH-series ball valves meet the requirements set by ASME B
16.34.
Fire safety characteristics are designed according to API 607
and BS 6755.
1.6
CE marking
The valve meets the requirements of the European Directive
2014/68/EU relating to pressure equipment, and has been
marked according to the Directive.
1.7
Recycling and disposal
Most valve parts can be recycled if sorted according to
material. Most parts have material marking. A material list is
supplied with the valve. In addition, separate recycling and
disposal instructions are available from the manufacturer.
A valve can also be returned to the manufacturer for recy-
cling and disposal against a fee.
1.8
Safety precautions
Fig. 4
Maximum allowable
Δ
p in control service
110
120
130
140
150
160
p
(bar)
70
80
90
100
0
50
100
150
200
250
300
350
400
450
Temperature (°C)
CAUTION:
Do not exceed the valve performance limitations!
Exceeding the limitations marked on the valve may cause
damage and lead to uncontrolled pressure release.
Damage or personal injury may result.
CAUTION:
Do not dismantle the valve or remove it from the pipe-
line while the valve is pressurized!
Dismantling or removing a pressurized valve will result in
uncontrolled pressure release. Always isolate the relevant
part of the pipeline, release the pressure from the valve
and remove the medium before dismantling the valve. Be
aware of the type of medium involved. Protect people and
the environment from any harmful or poisonous sub-
stances. Make sure that no medium can enter the pipeline
during valve maintenance.
Failure to do this may result in damage or personal injury.
CAUTION:
Beware of the ball cutting movement!
Keep hands, other parts of the body, tools and other
objects out of the open flow port. Leave no foreign
objects inside the pipeline. When the valve is actuated,
the ball functions as a cutting device. Close and detach
the actuator pressure supply pipeline for valve mainte-
nance. Failure to do this may result in damage or personal
injury.
CAUTION:
Beware of noise emission!
The valve may produce noise in the pipeline. The noise
level depends on the application. It can be measured or
calculated using the Metso Nelprof computer program.
Observe the relevant work environment regulations on
noise emission.
CAUTION:
Beware of extreme temperatures!
The valve body may be very hot or very cold during use.
Protect people against cold injuries or burns.
CAUTION:
When handling the valve or the valve package, bear in
mind its weight!
Never lift the valve or valve package by the actuator, posi-
tioner, limit switch or their piping. Place the lifting ropes
securely around the valve body (see Fig. 6). Damage or per-
sonal injury may result from falling parts.
The weights are shown in Section 11.
CAUTION:
Lifting threads in pipe flanges are not to be used for lifting
the entire valve.
CAUTION:
Follow the proper procedures when handling and servic-
ing oxygen valves.
Содержание Neles XH Series
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