Our National Fittings Products Range
UL Certified and FM Approved Pipe Grooved and Threaded Fittings
NFL MANUFACTURING STANDARDS
INDUSTRY STANDARDS
National products meet ASTM specifications and are approved by international bodies like UL and FM, ensuring consistent performance and safety compliance.
ISO 9001 Certificate
National Piping Solutions adheres to global NFL industry standards and is certified under ISO 9001 for quality management systems
PRODUCT CERTIFICATIONS
UL& FM Certificates
UL& FM Certificates
UL& FM Certificates
UL& FM Certificates
UL& FM Certificates
FEATURES AND BENEFITS OF GROOVED PIPING SYSTEM
Economical and practical
Up to five times faster to install than welding, flanging or threading, the Grooved system can reduce total installed costs by 20 to 40%. Cost estimates are more accurate; completion dates more predictable.
Noise & vibration attenuation
The basic design of independent grooved pipes, sealed by a rubber gasket & unified by externally bolted coupling housing, reduces noise,-vibration transmission geometrically throughout a system.
No fire hazard
As a fully mechanical, bolted
system National products present no fire hazard. It is far safer and requires no shielding or fire watch.
Easy system or Eqp. access
Removal of two couplings (just four bolts) provide access for cleaning, maintenance, system expansion or changes. Butterfly valves provide “dead-end” shut-off service to isolate equipment or systems.
Flexibility
The Grooved system is unique in the ability to accommodate expansion/ contraction/ deflection and to permit designing to take advantage of these characteristics within published standards. Reduction of special vibration accessories, expansion loops and settlement allowance are among the options.
Alignment Ease
The grooved system allows full rotation of pipe, valves, fittings or couplings before tightening for easy alignment. This compensates for some alignment errors and eliminates the “two-holing” required with flanges. Fitting in tight places is eased.