Welker Constant Pressure
Piston Sample Cylinders collect and maintain gas or liquid samples at
full pipeline conditions-regardless of pressure and temperature- and
provide collection, storage and transport of liquid or gas samples at
pipeline conditions. D.O.T. approved models are available for working
pressures up to 3600 psi.
Transport Canada approved models are
available in several sizes with working pressures up to 1800 psi.