Parker launches new process to instrument valve
22 November 2021
Parker Hannifin, the motion and control technologies company, has launched its latest process to instrument valve that fully conforms to EEMUA 182. The new range of EP Series Pro-Bloc valves, manufactured at its globally recognised, lean model plant in Barnstaple, Devon in the UK, has a double block and bleed function and consists of two separate isolating balls and one vent in a single unit. The valve is also available in a block and bleed arrangement.
The EEMUA 182 standard covers integral block and bleed valve manifolds for direct connection to pipework, used as a replacement for individual block and bleed valves at tapping points in piping systems and also in larger arrangements for equipment and main process isolation and is a requirement for many customers.
Used primarily in upstream and downstream oil and gas applications, the valve’s single-piece construction offers space and weight-saving benefits over the traditional method of using three separate valves fabricated to create a double block and bleed for process control.
The EP Series Pro-Bloc features a 5mm bleed hole to prevent plugging, a blowout-proof stem to prevent catastrophic failure as well as cavity relief on seats for over-pressure protection of the ball cavity. The packing adjustment nut under the valve lever allows the removal of the handle without compromising packing integrity. These features all lead to an increase in performance, reliability, and safety.