The Nordson Service Kit 7173117 (Kit-SVC SC Orifice Sealings) is the standard solution for routine maintenance of Speed-Coat II and similar hot melt module sealing mechanisms. While customers procure the entire kit, the critical components determining system uptime and sealing integrity are the specialized high-temperature dynamic seals and variseals within the package. XHH Seals offers direct, high-performance replacements for the core sealing elements within the 7173117 kit, providing...

Industrial operations relying on Nordson UM22, UM25, and UM50 melt valve controllers for precision fluid dispensing demand continuous, stable operation. XHH Seals, with over 15 years of expertise in high-performance sealing solutions (ISO 9001 certified), offers a fully compatible and performance-optimized alternative to the Nordson Rebuild Kit 1049908. This replacement solution is engineered to match the dimensional accuracy and functionality of the OEM kit while utilizing enhanced material...

Gate valves used in oil, gas, and high-pressure hydraulic systems demand absolute sealing integrity under severe static sealing conditions. Traditional elastomer seals often degrade under high pressure, chemical exposure, or thermal cycling. To overcome these challenges, PTFE Spring Energized Seals have become the preferred self-energizing solution for long-term gate valve sealing applications where safety, reliability, and performance are critical. Why Gate Valves Need High-Performance...

In the world of industrial sealing technology, the choice of rubber material determines the performance, durability, and reliability of the final seal. From automotive engines to semiconductor vacuum chambers, each application requires a specific balance of chemical resistance, temperature capability, elasticity, and cost efficiency. This comprehensive guide introduces the 16 most common rubber materials used in sealing applications — detailing their core properties, temperature ranges, and...

In precision sealing applications, the performance of a seal does not depend only on the surface roughness (Ra, Rz, Rt) of the mating parts — surface hardness and treatment are equally critical. An optimal combination of surface finish, hardness, and coating ensures consistent contact pressure, minimizes wear, and extends service life. Improper surface conditions, on the other hand, often lead to leakage, abrasion, or premature seal failure. Importance of Surface Hardness Surface hardness...

XHH Seals Exhibition Announcement: PTC ASIA 2025 Exhibition Name: Power Transmission and Control (PTC ASIA 2025) Dates: 28–31 October 2025 Venue: Shanghai New International Expo Centre, China As a professional seal manufacturer and global exporter with over 15 years of expertise in high-performance sealing solutions. We specialize in providing durable, precise, and cost-effective sealing solutions. Our latest technologies and products across key categories, including:Hydraulic Seals...

Application Challenge: Stringent Demands for High-Precision Sensor Protection LiDAR scanners mounted on autonomous platforms (UAVs/UGVs) must maintain centimeter- or even millimeter-level accuracy in highly hostile environments. The rotating bearing, as the core dynamic component, directly confronts the following engineering challenges:Wear and Dust Contamination: High-concentration dust in mining and construction poses a severe wear threat to conventional seals. Any particle ingress into...