Transfer barrier accumulators are designed for use with two different types of fluid to transfer pressure and a small amount of volume from one medium to another. Sizes from 1 qt. to 15 gal, up to 9000 psi. Shells are electroless nickel-plated inside and out with all 316 stainless steel fluid ends. Buna N bladder and seals standard. SAE, NPT, split flange connections with elastomers optional.