Common Faults and Maintenance of concentric Marine Butterfly Valves

Fault	Cause Analysis	Solution
Leakage	Seat aging or wear	Replace seat
Difficult operation	Shaft rust or jamming	Clean,lubricate,or replace shaft
Corrosion perforation	Inadequate corrosion protection	Repair by welding or replace valve
Handle damage	Over-torque operation	Replace handle and add torque limiter

Tianjin Tanghai Valve Co., Ltd. is a professional marine valve manufacturer, including butterfly valve, check valve, gate /Knife gate valve. We have certificates: CE, ISO, BV, DNV foundry and products approval. Now we have our own independent R & D, manufacturing, assembly and warehousing workshops; we have professional pre-sale and after-sale technical support and perfect services. Below is our wafer butterfly valve of marine valves,if you need to check more information, please click here:https://www.tanghaivalve.com/wafer-type-butterfly-valve-th-btv-aw/.

Please contact us if you need more support, please contact us freely: info@tanghaivalve.com.

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