Mechanical Packing

Product Details:

NRV injection packers are specialized tools used in the field of construction, particularly in concrete repair and waterproofing applications. Here's an overview of NRV injection packers:

1. Functionality: NRV injection packers, also known as non-return valve injection packers, are designed to facilitate the injection of various materials, such as epoxy resins, polyurethane foams, and grouts, into concrete structures. These packers feature a one-way valve mechanism that allows the injection material to flow into the concrete substrate while preventing backflow or leakage.

2. Construction: NRV injection packers are typically made of high-quality materials such as stainless steel or brass to ensure durability and resistance to corrosion. They consist of a threaded body that is inserted into pre-drilled holes in the concrete, a sealing mechanism to prevent leakage, and a one-way valve that allows material injection.

3. Types: NRV injection packers come in various sizes and configurations to suit different applications and project requirements. Common types include standard packers with a single non-return valve, double-valve packers for high-pressure injection, and packers with adjustable pressure settings.

4. Installation: The installation process involves drilling holes into the concrete substrate at specified intervals and depths, based on the project requirements. The NRV injection packers are then inserted into these holes and tightened securely using a wrench or similar tool. Proper installation ensures a watertight seal and prevents material leakage during injection.

5. Injection Process: Once the packers are installed, the injection material, such as epoxy resin or polyurethane grout, is mixed according to manufacturer instructions and injected into the packers using specialized equipment, such as injection pumps or cartridges. The one-way valve mechanism of the packers ensures that the material flows into the concrete substrate and fills voids, cracks, or cavities effectively.

6. Applications: NRV injection packers are commonly used in various construction applications, including:

   • Concrete crack repair and sealing
   • Waterproofing of concrete structures, basements, and tunnels
   • Structural strengthening and reinforcement
   • Soil stabilization and consolidation
   • Sealing of expansion joints and construction joints

7. Advantages: The use of NRV injection packers offers several advantages, including:

   • Precise and controlled injection of materials
   • Minimization of material wastage and mess
   • Effective sealing of cracks, voids, and leaks
   • Enhanced structural integrity and durability of concrete elements
   • Cost-effectiveness and time-saving compared to traditional repair methods

Product Details:

Grouting packers are designed for low-pressure and high-pressure groutings of special materials into the building constructions. Our company offers wide range of grouting packers devided into several categories by construction and material.