Summit PSO-LT is formulated to meet the strictest ammonia transfer pump seal lubrication requirements for all pumping temperatures 32ºF and 32ºF and higher. It is a 100 % PAO-Polyalphaolefin synthetic sulfur-free pump seal oil that is registered H1 as an NSF food grade lubricant. Summit PSO-LT optimizes low solubility and very low miscibility with R717-anhydrous ammonia along with excellent water separation (demulsibility) properties, complete inertness (low reactivity) in the presence of ammonia and excellent protection against rust, oxidation, corrosion and deposit formation.
Summit PSO-LT is compatible with naphthenic oils, as well as other PAO and AB synthetic oils, thus eliminating the need for system flushes or complicated conversions.