Views: 0 Author: J-VALVES Publish Time: 2023-05-10 Origin: Site
In the industrial field, ANSI 150LB BRONZE BUTTERFLY VALVES are widely used. Dimensional tolerances and fluid compatibility in its design specifications are two key aspects, which will be analyzed in detail below.
The dimensions of ANSI 150LB BRONZE BUTTERFLY VALVES need to follow specific standards to ensure accurate adaptation to various pipeline systems. Their dimensional tolerances mostly refer to the regulations on flanges in the ANSI B16.5 standard. The details of specific dimensions and their corresponding tolerance ranges are as follows:
DIMENSION PARAMETERS | TOLERANCE RANGES |
Outer Diameter (DN ≤ 24 inches) | ±0.06 inches (±1.6 mm) |
Outer Diameter (DN > 24 inches) | ±0.12 inches (±3.2 mm) |
Contact Surface Diameter (0.06-inch raised face) | ±0.03 inches (±0.8 mm) |
Contact Surface Diameter (0.25-inch raised face) | ±0.02 inches (±0.5 mm) |
Hub Diameter at Welding Location (NPS 5 and below) | +0.09 inches, -0.03 inches (+2.4 mm, -0.8 mm) |
Hub Diameter at Welding Location (NPS 6 and above) | +0.16 inches, -0.03 inches (+4.0 mm, -0.8 mm) |
Inner Diameter (NPS 10 and below) | ±0.03 inches (±0.8 mm) |
Inner Diameter (NPS 12 - 18) | ±0.06 inches (±1.6 mm) |
Inner Diameter (NPS 20 and above) | +0.12 inches, -0.06 inches (+3.2 mm, -1.6 mm) |
Hub Bottom Diameter (Hub Bottom ≤ 24 inches) | ±0.06 inches (±1.6 mm) |
Hub Bottom Diameter (Hub Bottom > 24 inches) | ±0.12 inches (±3.2 mm) |
Thickness (NPS 18 and below) | +0.12 inches, -0.00 inches (+3.2 mm, -0.0 mm) |
Thickness (NPS 20 and above) | +0.19 inches, -0.00 inches (+4.8 mm, -0.0 mm) |
Drilled Bolt Circle Diameter | ±0.06 inches (±1.6 mm) |
Bolt Hole Spacing | ±0.03 inches (±0.8 mm) |
Eccentricity of Bolt Circle and Face-to-Face Holes (NPS 2.5 and below) | ±0.03 inches (±0.8 mm) |
Eccentricity of Bolt Circle and Face-to-Face Holes (NPS 3 and above) | ±0.06 inches (±1.6 mm) |
Through-Hub Length (NPS 10 and below) | ±0.06 inches (±1.6 mm) |
Through-Hub Length (NPS 12 and above) | ±0.12 inches (±3.2 mm) |
When ANSI 150LB BRONZE BUTTERFLY VALVES come into contact with different fluids, their compatibility performances vary. The following is the compatibility situation of it with common fluids:
FLUID MEDIA | SPECIFIC COMPATIBILITY SITUATIONS |
Freshwater | It performs well in freshwater, can work stably for a long time, and freshwater usually does not cause corrosion to it. It is suitable for freshwater transmission pipelines. |
Seawater | When in contact with seawater, materials resistant to seawater corrosion, such as nickel-aluminum bronze, need to be selected. It is often used in seawater desalination projects or offshore platforms and other occasions, but attention should be paid to the corrosion problems caused by chloride ions. |
Air | It is completely compatible with air. It can be used in factory air transmission pipelines or other places where air circulation is required, and air will not have adverse effects on the valve material. |
Steam | It can be used for steam transmission within a certain temperature and pressure range. Generally, it can withstand steam temperatures around 200 °C - 300 °C. If the temperature exceeds this range, its performance may be affected. |
Oil Products | It has good compatibility with oil products such as gasoline, diesel, and lubricating oil. The chemical substances in oil products are not easy to corrode it, and it can be applied to oil product transmission pipelines. |
Weak Acid and Alkali Solutions | It has a certain anti-corrosion ability for weak acid and alkali solutions with low concentrations. In a strong acid and alkali environment, caution is required, or special anti-corrosion treatment measures need to be taken. |
Understanding the dimensional tolerances and fluid compatibility of ANSI 150LB BRONZE BUTTERFLY VALVES is extremely beneficial for actual use and installation. It enables accurate selection of valves according to specific working conditions, so that they can play their roles better.
