FLUID INTENSIFIER
A fluid intensifier (P) comprises a two stage piston (1) within a sleeve (2). Piston (1) provides, by pressure multiplication, a pressure increase to buffer fluid within the intensifier (P). Sleeve (2) is located within an outer sleeve (3) by end plates (4, 5) with the space therebetween serving as a fluid reservoir. A bleed hole (9) passes through sleeve (2) to the reservoir. A discharge pipe (17) of a pump (18) has a fitting (19) allowing fluid to enter the intensifier (P). Buffer fluid from the intensifier (P) flows through a pipe (21) attached to the seal chamber of pump (18). The fluid returns to the intensifier (P) via a pipe (22).