Lined Valves

Approx. Rs 650 / PieceGet Latest Price

Gate Valve PU Lining refers to the application of polyurethane (PU) material to the interior surfaces of gate valves. This lining serves various functions, including enhancing performance, extending service life, and improving resistance to harsh operating conditions. Customers are attracted towards Sara Indus products due to their service and product quality. They are based in Chennai, Tamil Nadu, India. They provide excellent service and meet the expectations of their customers.

1. Enhanced Wear Resistance:

   • Durability: PU linings protect the valve from abrasive materials and extend its service life, especially in high-wear environments.
   • Reduction in Maintenance: By preventing excessive wear on the valve body and gate, PU linings reduce the need for frequent repairs and replacements.

2. Improved Corrosion Resistance:

   • Protection: PU coatings act as a barrier to corrosive substances, thereby protecting the valve from chemical attacks and rust, which is particularly beneficial in aggressive environments.

3. Reduced Friction and Wear:

   • Smooth Operation: The smooth surface of PU linings can reduce friction between moving parts, leading to smoother valve operation and reduced mechanical stress.
   • Reduced Leakage: Improved sealing capabilities due to the smooth lining can help in minimizing leaks and ensuring better control of flow.

4. Temperature and Chemical Resistance:

   • Temperature Tolerance: PU linings can withstand a range of temperatures, making them suitable for applications with variable or extreme thermal conditions.
   • Chemical Resistance: PU provides good resistance to various chemicals, including acids, alkalis, and solvents, depending on the specific formulation.

1. Preparation:

   • Cleaning: Thoroughly clean the valve surfaces to remove any contaminants, rust, or old coatings.
   • Surface Preparation: Roughen the surface if necessary to ensure good adhesion of the PU lining. This might involve sanding or abrasive blasting.

2. PU Lining Application:

   • Mixing: Prepare the PU lining material according to the manufacturer's instructions. This may involve mixing two components.
   • Application Methods: Apply the PU lining using methods such as spraying, brushing, or dipping, depending on the valve's design and the type of PU material used.
   • Uniform Coating: Ensure an even and uniform coating to avoid weak spots and ensure comprehensive protection.

3. Curing:

   • Curing Time: Allow the PU lining to cure as per the manufacturer's guidelines. Curing times can vary based on the specific PU formulation and environmental conditions.
   • Quality Control: Inspect the lining for consistency and coverage once it has cured.

4. Inspection and Testing:

   • Inspection: Check the lining for defects such as bubbles, unevenness, or peeling.
   • Testing: Conduct pressure and leakage tests to ensure the lining is properly applied and that the valve performs correctly under operational conditions.

5. Integration:

   • Reassembly: Reassemble the valve components if they were disassembled for the lining application.
   • Installation: Install the lined valve into the system, ensuring proper alignment and sealing.