Pentair Valves & Controls is expanding its Anderson Greenwood pressure relief product range with the launch of an improved design of its pilot-operated pressure relief valve (POPRV) model for LNG storage for onshore and offshore applications. The Anderson Greenwood 9300H offers LNG operators a key advantage by increasing flow capacity, enabling the design and construction of larger storage tanks without the need to increase valve sizes. In addition, the compact new model reduces equipment footprint, which is especially critical for LNG vessels where space is limited. The valve’s increased robustness and durability also provide significant savings on overall maintenance costs, as it requires less frequent and easier repair services.
The 9300H model comes in sizes from 2″ x 3″ to 12″ x 16″, with sturdy body casting and simplified trim design for easier maintenance. Its pilot, mounted directly on the valve cap, provides a lower and more compact valve profile and increases its sturdiness for more stable flows. This shorter body design is fully versatile and can accommodate both on- and offshore storage requirements. In addition to its increased flow capability, the new valve handles a large temperature range and features a self-draining body and low sensitivity to back pressure within the exhaust piping. The valve also significantly reduces the possibility of leakage by enhanced seating forces and improved seat design.