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Aavolyn # 71-25031-012, AVA17 TY250 Pressure Breaker Packing Rings
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The breaker ring is used to reduce and control the pressure that the sealing rings see in higher pressure applications. Reduced pressure leads to longer life and more efficient sealing of the active packing rings. The breaker ring has clearance designed into it to accomplish this function. It also throttles the pressure on the suction stroke.
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