Warning
Suitability of the material and product for
the use contemplated by the buyer is the
sole responsibility of the buyer. Also storage,
installation and proper use and application
are the sole responsibility of the purchaser.
Emerson disclaims any and all liability arising out
of the same.
Any installation, maintenance, adjustment,
repair and testing performed on pressure
relief valves should be done in accordance with
the requirements of all applicable codes and
standards under which those performing such
work should maintain proper authorization
through appropriate governing authorities.
No repair, assembly and test work done by
other than Emerson shall be covered by the
warranty extended by Emerson to its customers.
You assume full responsibility for your work. In
maintaining and repairing Crosby products you
should use only parts manufactured by Emerson.
Call your nearest Emerson regional sales office or
representative for a service engineer should you
wish assistance with your field needs.
Table of ConTenTs
1 Introduction ��������������������������������������������������� 4
2 Storage and handling ������������������������������������ 4
3 Installation ����������������������������������������������������� 4
4 Hydrostatic pressure tests ��������������������������� 5
5 Setting, testing and adjustments ����������������� 6
6 Valve maintenance �������������������������������������� 10
7 Style variations �������������������������������������������� 21
8 Service records �������������������������������������������� 21
9 Spare parts �������������������������������������������������� 21
10 Trouble shooting pressure relief valves ���� 21
11 Emerson’ field services and repair
programs ����������������������������������������������������� 22
aTTenTion
The safety of lives and property often depends on
the proper operation of the pressure relief valves.
Consequently, the valves should be kept clean and
should be tested and reconditioned periodically to
make sure they function properly.
emerson.com/finalControl
Crosby
STylE JOS-E, JBS-E, JlT*-JBS-E, JlT*-JOS-E ValVES
InstallatIon and MaIntenance InstructIons
© 2017 Emerson� all Rights Reserved�
VCioM-06208-en 18/02
Engineering Doc� #IS-V3137B
Before installation these instructions must be read fully and understood
