Triethylene Glycol (TEG) for Gas Dehydration Triethylene Glycol is used as a liquid desiccant to remove the water from natural gas. The hot glycol is injected into the gas pipeline at high pressures to dehydrate of the natural gas coming out of the ground. GB-410 All sizes rated to 350°F and 1,500 psi Handle viscosities less than 1 cPs up to 550 cPs Hardened, DLC coated parts for robust, long-lasting field performance GB-414 Ductile iron Hardened, DLC coated parts for robust, long-lasting field performance Capacities to 210 GPM