A fluid valve system, comprising a plurality of fluid valve modules each comprising a housing and a plurality of valve members; the housing comprising a housing body and a housing cover; the housing body comprising a fluid feed partition, a plurality of valve body partitions, and a plurality of valve ports; the housing body further comprising wall openings between an interior of the fluid feed partition and an exterior of the housing body; the valve body partitions each being shaped for mating with the housing cover in a fluid-tight manner, and each being in fluid communication with the fluid feed partition and at least one of the valve ports; and the valve members each being arranged in a respective one of the valve body partitions for controlling a passage of a fluid from the fluid feed partition via the respective valve body partition to the at least one of the valve ports; and at least one connecting means; the housings (101, 108) of the fluid valve modules each being shaped for mating with one another; the wall openings being arranged for alignment with one another upon mating of the housings (101, 108) of the fluid valve modules; and the connecting means being arranged for concatenating respective fluid feed partitions of mated fluid valve modules in a fluid-tight manner via the aligned wall openings. a plurality of fluid valve modules each comprising a housing and a plurality of valve members; the housing comprising a housing body and a housing cover; the housing body comprising a fluid feed partition, a plurality of valve body partitions, and a plurality of valve ports; the housing body further comprising wall openings between an interior of the fluid feed partition and an exterior of the housing body; the valve body partitions each being shaped for mating with the housing cover in a fluid-tight manner, and each being in fluid communication with the fluid feed partition and at least one of the valve ports; and the valve members each being arranged in a respective one of the valve body partitions for controlling a passage of a fluid from the fluid feed partition via the respective valve body partition to the at least one of the valve ports; and a housing and a plurality of valve members; the housing comprising a housing body and a housing cover; the housing body comprising a fluid feed partition, a plurality of valve body partitions, and a plurality of valve ports; the housing body further comprising wall openings between an interior of the fluid feed partition and an exterior of the housing body; the valve body partitions each being shaped for mating with the housing cover in a fluid-tight manner, and each being in fluid communication with the fluid feed partition and at least one of the valve ports; and the valve members each being arranged in a respective one of the valve body partitions for controlling a passage of a fluid from the fluid feed partition via the respective valve body partition to the at least one of the valve ports; and at least one connecting means; the housings (101, 108) of the fluid valve modules each being shaped for mating with one another; the wall openings being arranged for alignment with one another upon mating of the housings (101, 108) of the fluid valve modules; and the connecting means being arranged for concatenating respective fluid feed partitions of mated fluid valve modules in a fluid-tight manner via the aligned wall openings.