Fluid jet cutting system

A pumping system comprising:

• a disposable diaphragm pump adapted for use with a reusable component and being constructed and arranged to generate a high pressure fluid cutting jet, the disposable diaphragm pump including,
• a diaphragm;
• and
• a pump cartridge,
• said pump cartridge and said diaphragm defining therebetween a pumping chamber and being constructed and arranged for operative association with the reusable component, such that when the reusable component is used with the diaphragm pump, the reusable component engages both the pump cartridge and the diaphragm and secures the pump cartridge and the diaphragm to each other;
• sealing means for forming a leaktight barrier between the pump cartridge and the diaphragm such that the pumping chamber, when operating under conditions for generating a high pressure fluid cutting jet, is able to withstand fluid operating pressures within said pumping chamber of at least 1000 p.s.i. without fluid leakage through said leaktight barrier,
• said pump cartridge further including an inlet disposed therein, through which a cutting fluid is communicated from a source to the pumping chamber, and an outlet disposed therein, through which the cutting fluid passes from the pumping chamber.