Replacement Parts List

Pressure Regulating Valves
(O)LDR-20 Series
WASH
INGTON, MO
USA
M.R.P.
M.O.P.D.
TYPE
WASHI
NGTON, MO USA
M.R.P.
M.O.P.D.
TYPE
4 Enclosing
Tube
Locknut
4 Coil
6 Coil Screw
4 Valve
Nameplate
2 Spring
Kick-Off
2 Plunger
2, 3 Enclosing
Tube
Assembly
4 Enclosing
Tube Locknut
4 Coil
4 Coil Housing
Locknut
4 Spacer Cup
4 Valve
Nameplate
1 Enclosing
Tube
Assembly
1 Body
2 Closing
Spring
4 Body Flange
Gasket
1 Upper Valve
Body
6 Enclosing Tube
Gasket*
2 Piston Ring
2 Backing Spring
2 Piston
Assembly
4 Hex Cap
Screw
(4 Required)
1 Replacement part not available.
2 Part is not available separately, but
is included with the Internal Parts
Kit. See Page 51.
3 Part is not available separately, but
is included with the Enclosing Tube
Parts Kit. See Page 51.
4 Part is available separately. See
Tables on Page 51.
5 Part is available separately, and is
also included with the Internal Parts
Kit. See Page 51.
6 Part is available separately and is
also included with the Internal Parts
Kit and the Enclosing Tube Parts Kit.
See Page 51.
* Refer to the Table on Page 49
regarding part numbers for the
enclosing tube gasket (tetraseal)
and the new wolverine gasket.
Page 54 – BULLETIN 122
OLDR-20
Normally Open
LDR-20
Normally Closed