A fluid control valve having an inlet , for operative connection to a supply of pressurised fluid, and an outlet and defining a fluid flow path therebetween; and: i) a first valve body comprising the outlet and a first valve provided in the fluid flow path and being adjustable under the control of a first valve actuator between a first, or closed, position in which flow of fluid through the first valve is prevented and a second, or open, position in which flow of fluid through the first valve is permitted; and ii) a second valve body comprising the inlet and a second valve associated with the inlet or intermediate the inlet and the first valve; wherein the first valve body is demountable to the second valve body; characterised in that : the second valve comprises a second valve actuator adapted such that the first valve actuator bears against the second valve actuator in each of said first and second positions to urge the second valve into an open configuration allowing flow of fluid; the fluid control valve is arranged such that the first valve actuator is adjustable to a third position in which the first valve actuator is spaced from the second valve actuator by a separation sufficient to allow fluid pressure at the inlet to cause the second valve to close, preventing flow of fluid through the fluid control valve; the first valve includes a valve seat and a valve head including a valve gear to which is mounted a washer for adjustment of a separation between the washer and the valve seat as the first valve head is rotated between the first and second positions; and wherein the washer or a washer mounting bears against the second valve actuator as the valve head is adjusted between the first and second positions to cause the second valve to open and becomes spaced from the second valve actuator in the third position. i) a first valve body comprising the outlet and a first valve provided in the fluid flow path and being adjustable under the control of a first valve actuator between a first, or closed, position in which flow of fluid through the first valve is prevented and a second, or open, position in which flow of fluid through the first valve is permitted; and ii) a second valve body comprising the inlet and a second valve associated with the inlet or intermediate the inlet and the first valve; the second valve comprises a second valve actuator adapted such that the first valve actuator bears against the second valve actuator in each of said first and second positions to urge the second valve into an open configuration allowing flow of fluid; the fluid control valve is arranged such that the first valve actuator is adjustable to a third position in which the first valve actuator is spaced from the second valve actuator by a separation sufficient to allow fluid pressure at the inlet to cause the second valve to close, preventing flow of fluid through the fluid control valve; the first valve includes a valve seat and a valve head including a valve gear to which is mounted a washer for adjustment of a separation between the washer and the valve seat as the first valve head is rotated between the first and second positions; and wherein the washer or a washer mounting bears against the second valve actuator as the valve head is adjusted between the first and second positions to cause the second valve to open and becomes spaced from the second valve actuator in the third position. <EOS>