UZPD300 pages

Direct operated pressure relief
valve type UZPD30

WK
499 840

up to 31,5 MPa up to 330 dm3/min

NS30

01.2013

APPLICATION
Pressure relief valves are designed to limit maximum
pressure in the entire hydraulic system or in its part.
Depending on the type of mounting in the system,
direct operated pressure relief valves type UZPD…
UZPD…
can be screwed (cartridge version), mounted into
threaded connections (version for threaded
connection) or mounted to subplate (version for
subplate mounting).

DESCRIPTION OF OPERATION

UZPD30 - 02 S K/200

T
P

P
4

T
1

3

2

Direct operated pressure relief valve type mainly
consists of body (1), poppet (2), spring (3), set
screw (4). Movable poppet (2) is a working element.
Cracking pressure setting is made by variation of
spring tension (3) by means of set screw (4). Various

Type UZPD30

5

springs (2) (exchangeable) correspond to various
ranges of cracking pressure adjustment. A dumping
element (5) is used to eliminate vibrations of the
valve.

-1-

WK 499 840

01.2013