Duo check valves is to perform the work of conventional valves however being small design make the lighter cost effective and easy for installation and maintenance, duo check valves offer flat seat design offer many advantages that the valve depends on the pressure or flow to center the plates in relation to the sealing surface to make the seal.
• Design according to API-594.
• Compact one-piece dual plate wafer-type or LUG (or slotted) type design.
• Patented spring that allows the soft closing of the disc, in order to prevent rupture and premature wear.
• It has a shaft, which is heavy duty and corrosion resistant.
• Two plates offer maximum resistance with maximum time in open position.
• Total contact with metal-to-metal seats that allow an airtight seal at a minimum working pressure.
• It has thrust sheaves to reduce the friction and wear of the forks.
• Pressure tests according to API 598.