Pilot Operated, Balanced Piston Relief Valve - Farr KT5500 Technical Manual

KT5500 5- " T & CLInCHER® B
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Pilot operated, balanced piston relief valve

Functional Group:
: Cartridges : Relief : 2 Port : Pilot Operated, Balanced Piston
Product Description
Pilot-operated, balanced-piston relief cartridges are normally closed
pressure regulating valves. When the pressure at the inlet (port 1)
reaches the valve setting, the valve starts to open to tank (port 2),
throttling flow to regulate the pressure. These valves are accurate,
have low pressure rise vs. flow, they are smooth and quiet, and are
moderately fast.
Technical Features
Will accept maximum pressure at port 2; suitable

for use in cross port relief circuits. If used in cross
port relief circuits, consider spool leakage.
Not suitable for use in load holding applications

due to spool leakage.
All 2-port relief cartridges (except pilot reliefs) are

physically and functionally interchangeable (same
flow path, same cavity for a given frame size).
Incorporates the Sun floating style construction to

minimize the possibility of internal parts binding
due to excessive installation torque and/or
cavity/cartridge machining variations.
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Main stage orifice is protected by a 150 micron

stainless steel screen.
Back pressure on the tank port (port 2) is directly

additive to the valve setting at a 1:1 ratio.
Stainless steel cartridge options P or W are

intended for use within corrosive environments
with all external components manufactured in
stainless steel or titanium. Internal working
components remain the same as the standard
valves.
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Capacity:
50 gpm (200 L/min.)
RPGC
Model: