When our piping products used

When is low strength carbon steel bolting used?

There are two types of flange bolting material available. First is low strength and second is high strength bolting. A flange that used in low pressure-temperature and non-metallic flanges are connected with low strength bolting. Normally low strength bolting shall not be used above 200 degrees Centigrade or below -28 degree Centigrade.

Low strength carbon steel bolts and nuts

Low strength carbon steel bolts and nuts

When are galvanized pipe used?

Carbon steel pipes are galvanized to protect it from general corrosion. You will find a galvanized pipe in service such as potable water, instrument air, plant air.

Galvanized steel pipes ASTM A53 PSL1

Galvanized steel pipes ASTM A53 PSL1

When long radius elbow and short radius elbow are used?

When fluids are transported to long distances or go frequent directional changes, short radius elbows are not recommended because of their greater friction loss, which may require the installation of a larger pump or compressor. So, when space is really constrained such as piping inside the ship short radius elbow are used. In refinery and similar process plant, you will see that only long radius elbow is used in piping.

ASME B16.9 ASTM A403 WP304 Long Radius Elbows

ASME B16.9 ASTM A403 WP304 Long Radius Elbows

Normally where do we use eccentric reducers and concentric reducers?

Eccentric reducer is used in a horizontal line where the bottom elevation of a pipe is to be maintained on a pipe rack. Concentric reducer is used in a vertical line where the center of the pipeline is to be maintained.

Concentric Reducers

Concentric Reducers

ASME B16.9 ASTM A860 WPHY70 SCH40 eccentric reducer

ASME B16.9 ASTM A860 WPHY70 SCH40 eccentric reducer

Here I want to highlight that Concentric reducer is not used in the pump suction line. Because air pockets may form if concentric reducer is used at pump suction,which results in cavitation and causes damage to Pump. To avoid this problem, Eccentric Reducer with flat side up (FSU) is used in Pump Suction.

As a professional piping supplier,we can supply steel pipes(seamless steel pipe,welded steel pipe),pipe fittings(such as elbow,tee,reducer,cap,bend) and flanges in different specifications,standards,materials.If you want to know more about our products,please feel free to contact us.Email:sales@haihaogroup.com

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