Modular subsea manifold system

A method for installing a modular manifold system on a header pipe, the method comprising:

• providing the header pipe for connection of the modular manifold system thereto, the header pipe comprising a manifold connection point;
• providing the modular manifold system comprising a central hub, the central hub comprising,
• a header pipe connection for connection to the manifold connection point on the header pipe,
• a conduit connection arrangement for connection of a conduit thereto, the conduit connection arrangement defining a flow port which permits a fluid communication between the central hub and a connected conduit,
• at least one additional conduit connection arrangement for connection of at least one additional conduit thereto, wherein the conduit connection arrangement and the at least one additional conduit connection arrangement are arranged so as to be circumferentially evenly spaced around a center of the central hub, and
• a module connection arrangement which defines a flow port which permits a fluid communication between the central hub and a connected module, wherein the connected module comprises three or more flow ports arranged circumferentially around a center of the connected module configured to fluidly couple the connected module to three or more external components, the connected module comprises a plurality of further conduit connection arrangements defining the three or more flow ports, and the plurality of further conduit connection arrangements are arranged so as to be circumferentially evenly spaced about the center of the connected module and angularly offset relative to the conduit connection arrangement or the at least one additional conduit connection arrangement;
• connecting the header pipe to the header pipe connection of the modular manifold system;
• and
• orienting the modular manifold system so that the module connection arrangement is located above the conduit connection arrangement.

A modular manifold system for connection to a header pipe, the modular manifold system comprising:

• a central hub comprising a header pipe connection, the header pipe connection defining a flow port which permits a fluid communication between the header pipe and the central hub, wherein the header pipe connection comprises a header valve for controlling a fluid flow therethrough;
• a conduit connection arrangement arranged on the central hub, the conduit connection arrangement being configured to have a conduit be connected thereto and defining a flow port which permits a fluid communication between the central hub and the conduit connected to the conduit connection arrangement, wherein the conduit connection arrangement comprises a conduit valve for controlling a fluid flow therethrough;
• and
• a module connection arrangement arranged on the central hub, the module connection arrangement defining a flow port which permits a fluid communication between the central hub and a connected module, wherein the connected module comprises three or more flow ports arranged circumferentially around a center of the connected module configured to fluidly couple the connected module to three or more external components, the connected module comprises a further conduit connection arrangement comprising a module valve for controlling a fluid flow therethrough, and each of the header valve, the conduit valve, and the module valve comprise an actuator arrangement, each of which is configured to be extendable from the header valve, the conduit valve, and the module valve, respectively, towards an actuator plane.