Keystone Marine High Performance butterfly valves offer effective, bi-directional sealing across a wide spectrum of service conditions

Features

• Factory testing of every valve at full rating ensures 150% tight shut-off.
• Pure-seal valve is designed according to JIS standards.
• Actuator mounting flange according to ISO 5211.
• Excellent sealing and elasticity.
• One-piece through shaft for maximum strength and design application of blow-out resistant.
• Integrally cast disc position stop device achieving optimum performance and structure safety of valve.
• Variations with NBR or FKM seats and other material combinations available on special request.
• Fast and simple seat replacement.
• Type approved by various major shipping class.
• Suitable for use on end-of-line service.
• Tangential, low stress disc pins.
• Long life durability due to double offset operating principle minimizing seat wear.