NH Coupling

NH couplings have a straight thread with a diameter and number of threads per inch that conform to specific standards established by the National Fire Protection Association (NFPA). These threads are designed to create a secure and leak-resistant connection between hoses, hydrants, nozzles, and other firefighting equipment. NH couplings have a straight thread with a constant diameter and a specific number of threads per inch, ensuring compatibility and interchangeability between different components. NH couplings are widely used in fire departments, municipal fire services, and industries in North America, providing a reliable and standardized method for connecting hoses and equipment in firefighting operations.