The Causes of Valve Body Damage

What are the causes of valve body damage? Can a damaged valve body be repaired？

What are the causes of valve body damage? The valve body damage is usually caused by medium corrosion, overpressure and overtemperature operation, mechanical impact, or manufacturing defects, manifesting as cracks, perforations, or deformations, which may lead to leakage, system downtime, or safety accidents. It is necessary to select corrosion-resistant materials, strictly control operating parameters, increase support and shock absorption measures, and conduct regular inspections to prevent damage. Therefore, can a damaged valve body be repaired? Here is a brief introduction.

What are the causes of valve body damage?

1. Material reasons: poor quality of raw materials, poor processing quality of valves, etc.

2. Design defects: These are primarily caused by inadequate strength design, inaccurate calculation of fluid physical parameters, and undersized dimensions.

3. Regarding valve usage: Improper usage, long-term erosion from pollutants such as dust and dirt, and usage at temperatures that are either too high or too low.

4. Wear of components: Wear of components such as valve stems, sealing washers, seat rings, and sealing surfaces.

5. External factors: Such as bumps, collisions, impacts, electric shocks, etc., which can cause damage or breakage to the valve.

Can the valve body be repaired if it is damaged?

1. Gate valves

The damage of gate valves can occur through various means such as cracks, wear, poor sealing, and loosening of connecting threads. The maintenance methods include local painting, grinding of the sealing surface, replacing gaskets, and replacing threaded connections.

2. Regulating valves

The damage of regulating valves can manifest as changes in output signals and unstable operation. The maintenance methods include cleaning, repairing and adjusting the mechanism, and replacing components such as sensors.

3. Ball valves

The damage of ball valves can occur due to various reasons, such as ball wear, spring breakage, and poor sealing. The main repair methods include replacing the spring, grinding the ball, and replacing the sealing ring.

4. Gate valves

The damage of gate valves can occur due to wear, poor sealing, or loose connecting threads. The maintenance methods include grinding the sealing surface, replacing the gasket, and replacing the threaded connection.

5. Butterfly valves

The damage of butterfly valves can occur due to poor sealing, inflexible opening and closing, wear, and other factors. The maintenance methods include replacing the sealing ring, grinding the valve seat, and maintaining the transmission device.

How much does it cost to replace the valve body of a broken valve?

1. Valve types and brands

The prices of valve types and brands are naturally different. Some high-end brand valves, due to their superior quality and stable performance, may incur relatively high repair or replacement costs even if they are damaged.

2. Extent of damage

The extent of damage to the valve also affects the repair cost. If it's a simple minor issue, such as replacing a sealing gasket, the cost may be relatively low. However, if it involves replacing core components or replacing the entire valve, the cost will naturally increase.

3. Maintenance market situation

The prices in the maintenance market vary across different regions and time periods. During peak maintenance seasons or in some major cities, due to rising labor and material costs, maintenance fees may be slightly higher.

4. Professionalism and technicality

As an important water facility, the maintenance of the main water valve requires professional technology and experience. Some complex maintenance tasks may require specialized tools and skills, which may also increase maintenance costs. Therefore, when evaluating costs, it is necessary to consider not only material costs but also labor costs and service fees for technicians.