Armstrong DUAL GRAVITY (lighter/heavier) Liquid Drainer
For pressures up to 1,000 psig (69 barg)
Armstrong free-floating lever dual gravity drain traps are identical to Armstrong’s 2-LD, 3-LD, 6-LD, 32-LD, 33-LD, and 36-LD, except float weights are modified to make them suitable for draining water from a light liquid. If you wish to use them for draining any liquid with a specific gravity other than 1.00, consult the Armstrong Application Engineering Department.
Floats for dual gravity drain traps are weighted with quenching oil, which, in the unlikely possibility of float failure, may be dispersed through the system. If this is a hazard, consult the Armstrong Application Engineering Department.
Armstrong can design dual gravity traps for venting light liquids from above heavier liquids. Consult the Armstrong Application Engineering Department