Parker Instrumentation is adding a 25 mm version to its high-performance Hi Pro instrumentation ball valve family. Featuring a two-piece construction that reduces potential leak paths to a minimum, and a design optimized for reliability, the new valve is ideal for long-lifecycle applications in offshore environments, the company says.
The new high flow rate option extends the application scope for Parker’s valve family from instrumentation applications into areas such as isolation on process lines, and vessel draining and venting. The ability to specify the valve with a choice of end connections including integral compression tube fittings also makes it suitable for hydraulic power applications.
The new, fully bi-directional Hi Pro valve is initially available in 316 or duplex steel; further fabrication material options will follow, the company says.
The valve mechanism works on the floating ball principle with dynamic response seats and an anti blow-out stem, and offers 100% bubble tight operation. Standard Hi Pro valves are provided with PTFE seats for operation over -54 to +204°C. PEEK seat material can be specified to allow the valve to operate over a wide temperature range from -54 to +232°C.
Hi Pro’s seats are designed for inherent cavity relief, assuring complete venting downstream of any process medium trapped within the valve cavity. The ball valve also operates with low ‘breakout’ (actuation) torque, which has been measured at 25 lb/ft at full differential 3,600 / 247 bar pressure.
