There are differences in flange size and structural standards used by American Standard Valves and National Standard Valves. The following describes the standard and structural standards for flange sizes of ball valves in American Standard Valves. Details are as follows:
The general flange size in American standard valves is in accordance with American standard ASME B16.5 (24" and below)
Large diameter flange size according to American standard ASME B16.47A
The length of the structure is designed according to the American standard ASME B16.10.
Mainly adopt the American standard ASME B16.5 standard
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Label: American standard valve flange size and structural standard
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The installation is as follows.
1. Installation Steps
a) Choose correct installation site, taking installation area, pipeline, transmitter location &
valve location into consideration;
b) Install the meter according to direction mark on sensor;
c) Install the sensor & transmitter on pipeline;
d) Connect transmitter & sensor with 9-pin cable;
e) Start.
a) Sensor stays away from mechanical vibration source, for example, pump. Use flexible pipe to connect meter with pipeline if inevitable. The housing of meter must be standalone, out of touch with any other device. There must be 3 times the size of sensor between 2 sensors if there are many flow meters on the same pipeline, to avoid resonance.
b) Do not install sensor on pipeline that easily expands with hot and contracts with cold, especially near expansion joint, which leads to a worse stability.
c) Sensor stays away from industrial electromagnetic field, such as large generator and transformer, better 5m at least. Such device influences the performance of drive coil and pickoffs. Make sure magnetic field intensity less than 400A/m.
d) Sensor shall be installed on lower pipeline, to be easily full of fluid.
e) Make sure Ex-mark meet application requirements if in hazardous area.
f) Build a sunshade if the meter is under direct solar radiation. g) Keep the meter from corrosive liquid.
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