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15.
16.
17.
18. To adjust set pressure, see steps 10
through 13 in the
Spring Installation
section.
19. Install valve in system. Grip valve on
wrench pad during installation.
Bonnet
O-ring
Body
Bonnet
Bonnet
Tighten to
600 in. ·lb
(67.8 N·m)
Wrench pad
R3A Series Cutaway
Lock nut
Cap
Plug
Lock wire hole
Spring
Label
Bonnet
Spring support
Bonnet O-ring
Quad seal
Retainer
Stem
Body
Seat retainer
Seat O-ring
Insert
Lock wire hole
Swagelok proportional relief valves
should never be used as code safety
relief valves.
Some system applications require relief
valves to meet specific safety codes. The
system designer and user must
determine when such codes apply and
whether these relief valves conform to
them.
Swagelok proportional relief valves are
not "Safety Accessories" as defined in
the Pressure Equipment Directive
2014/68/EU:
R3A Series Externally Adjustable
Relief Valves Maintenance
Instructions
A Swagelok Pre-Engineered Subsystem Fast Loop Module
35