The LT valves use a new manifold block design. This configuration allows customers to leak test without added piping, saving installation time and money, and reducing cycle time and energy consumption. The LT design is leak tight so there is no leak path from pilot pressure to the test chamber. Its integrated flow and pressure sensor ports also decrease test volume and the need for extra fittings. Poppet construction provides long service life in dirty environments. The valves are port pressure independent and can be field configured for flow, pressure decay or differential pressure testing.