Safety seal: through the incorporation of a low specific gravity barrier fluid at a higher pressure than the pumped fluid, it guarantees a no leakage sealing action.
安全密封：通过并入比泵流体压力更高的低密度阻隔液，保证了没有泄漏发生。
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Tandem seal: through the incorporation of a barrier fluid at a higher pressure than the system's, it offers good sealing in higher pressures and improved PV factor extended maintenance-free seal life.
A laminated packaging material is composed of a thermoplastic material outermost layer, a paper base material layer, a conductive barrier layer and a heat sealing innermost layer.