SKYDROL HYDRAULIC FLUID LOW DENSITY LD-4

Skydrol LD-4 was also introduced in 1978, and is today the largest selling aviation phosphate ester fluid in the world. At the time of its introduction, it was a breakthrough product, solving problems of valve erosion and thermal stability common in earlier fluids. Its excellent thermal stability under real-world conditions has given it a reputation as the gold standard among Type IV fluids. In recent years it has received an additional qualification of 5000 psi approval under Boeing BMS 3-11 (Type V, Grade B, and Grade C). Skydrol LD-4 features low density, excellent thermal stability, valve erosion prevention, and deposit control.
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