Products being introduced by Circor Instrumentation at the Offshore Exhibition include Contromatics “Roughneck” ball valves, GO high-pressure hydraulic regulators and Hoke/Circle Seal Controls excess flow valves. Hoke instrumentation valves and fittings are a mainstay of the Circor brand companies, which cover a complete flow control range from 1/8in up to 12in valves in a wide range of body and sealing materials. Particularly suited to the offshore market, the Roughnecks ball valves have been added to the Contromatics line of ball, check and butterfly valves and actuation products for the oil and gas sector and other energy industries, in a large choice of alloys and materials. GO HR-1 high-pressure regulators are ideal for wellhead controls and other critical hydraulic applications, handling up to 20,000 psi on the inlet and offering a range of highly stable outlet pressures and flow rates. Hoke/Circle Seal Controls XVH Series excess flow valves automatically close leak-tight when a flow spike occurs, preventing uncontrolled release of system fluid at low cost and with minimal maintenance requirement. In quick-acting automatic or manual reset versions, they have a working range of 0 to 6000psig, with various seal and body materials offered for use with any liquid or gas service and a choice of end connections allowing assembly in any system.