Pipe-Size: 1-1/4″, 1-1/2", 2", 2"FL, 3″FL

The NMT® NGR08 series spring loaded gas regulators with internal relief provide consistent and controlled pressure in a variety of residential, industrial and commercial applications.  The NGR08 meets ANSI Z21.80/CSA 6.22 for Class I, Class II, Vent Limiting and OPD(Overpressure Protection Device) applications and are designed to be used in many applications where non-corrosive dry gases are used.


  • ANSI Z21.80/CSA 6.22 CERTIFIED
  • Vent Limiter Option
  • Internal Relief - OPD
  • Outlet pressures up to 7 psig
  • Conforms to ANSI B109.4
  • Corrosion resistant exterior

Spring Ranges:

2-4" wc Orange
5-8" wc Green
8-18" wc Black
13-24" wc Purple
1 psig - 2 psig Silver
2 psig- 4 psig Yellow
4 psig-7 psig White


Literature & Resources


NGR08 Relief Curves

CSA Certification Record

NGR08 1-1/4″ to 3″ FL