A valve assembly comprising: a common housing having a first side, a second side, an inlet port, and an outlet port; a first pair of valve members or poppets (4a, 4c) and a second pair of valve members or poppets (4b, 4d), a first pair of valve seats (5a, 5c) for cooperation with the first pair of valve members or poppets (4a, 4c), and a second pair of valve seats (5b, 5d) for cooperation with the second pair of valve members or poppets (4b, 4d); a central flow diverter disposed in between the first pair of valve members or poppets (4a, 4c) and the second pair of valve seats (5b, 5d), the central flow diverter defining a first side of the valve assembly, the first side of the valve assembly being disposed between the central flow diverter and the first side of the common housing, the central flow diverter defining a second side of the valve assembly, the second side of the valve assembly being disposed between the central flow diverter and the second side of the common housing; the first pair of valve seats (5a, 5c) comprising a first valve seat disposed on the first side of the valve assembly; the second pair of valve seats (5b, 5d) comprising a second valve seat disposed on the first side of the valve assembly; the central flow diverter being configured to: divert a first flow originating from the inlet port and flowing through the first valve seat of the first pair of valve seats (5a, 5c) toward the second valve seat of the second pair of valve seats (5b, 5d); and characterised in that the central flow diverter comprises at least one of: a triangular prism having an edge, the edge pointing toward the inlet port, a cone having an apex, the apex pointing toward the inlet port. a common housing having a first side, a second side, an inlet port, and an outlet port; a first pair of valve members or poppets (4a, 4c) and a second pair of valve members or poppets (4b, 4d), a first pair of valve seats (5a, 5c) for cooperation with the first pair of valve members or poppets (4a, 4c), and a second pair of valve seats (5b, 5d) for cooperation with the second pair of valve members or poppets (4b, 4d); a central flow diverter disposed in between the first pair of valve members or poppets (4a, 4c) and the second pair of valve seats (5b, 5d), the central flow diverter defining a first side of the valve assembly, the first side of the valve assembly being disposed between the central flow diverter and the first side of the common housing, the central flow diverter defining a second side of the valve assembly, the second side of the valve assembly being disposed between the central flow diverter and the second side of the common housing; the first pair of valve seats (5a, 5c) comprising a first valve seat disposed on the first side of the valve assembly; the second pair of valve seats (5b, 5d) comprising a second valve seat disposed on the first side of the valve assembly; the central flow diverter being configured to: divert a first flow originating from the inlet port and flowing through the first valve seat of the first pair of valve seats (5a, 5c) toward the second valve seat of the second pair of valve seats (5b, 5d); and characterised in that the central flow diverter comprises at least one of: a triangular prism having an edge, the edge pointing toward the inlet port, a cone having an apex, the apex pointing toward the inlet port. divert a first flow originating from the inlet port and flowing through the first valve seat of the first pair of valve seats (5a, 5c) toward the second valve seat of the second pair of valve seats (5b, 5d); and characterised in that the central flow diverter comprises at least one of: a triangular prism having an edge, the edge pointing toward the inlet port, a cone having an apex, the apex pointing toward the inlet port. a triangular prism having an edge, the edge pointing toward the inlet port, a cone having an apex, the apex pointing toward the inlet port.