Replacement Parts List
BULLETIN 122 – Page 55
Pressure Regulating Valves
DDR-20 Series
WASHINGTON, MO USA
M.R.P.
M.O.P.D.
TYPE
2 Piston
2 Body Sleeve
5 O-Ring
1 Body
3 Coil
4 Enclosing
Tube Locknut
7 Enclosing
Tube
4 Enclosing
Tube Gasket*
7 Stem and
Plunger Assembly
2 Closing Spring
4, 5 Gasket
3 Adaptor
3 Body
Flange
4 Strainer
4 Restrictor
Assembly
3 Cap
Screw
2 Poppet
2 Spring
2 Adjustment
Stem Assembly
4 Seal Cap
4 Seal Cap O-Ring
2 Pilot Valve
Body
2 Pilot Differential
Valve Body
3 Coil Screw
3 Valve
Nameplate
1 Replacement part not available.
2 Part is not available separately, but is included with
the Parts Kit. See Table above.
3 Part is available separately. See Table above.
4 Part is available separately and is also included with
the Pilot Assembly Kit. See Table above.
5 Part is available separately and is also included with
the Internal Parts Kit. See Table above.
6 Part is not available separately, but is included with
the Pilot Assembly Kit and the Internal Parts Kit. See
Table above.
7 Part is not available separately but is included with
the Pilot Assembly Kit and the Enclosing Tube Kit.
DDR-20 REPLACEMENT PARTS and PARTS KITS
ITEM
NUMBER
PART NUMBER and DESCRIPTION
QUANTITY
REQUIRED
REPLACEMENT PARTS SOLD SEPARATELY
958071 2422-000 Adaptor 1
958174 2423-002 Body Flange 1
183058 2625-001 Cap Screw 4
— MKC-2 Coil (Specify Voltage & Frequency) 1
958101 1390-000 Coil Screw 1
183660 641-3 Enclosing Tube Gasket (Tetraseal)* 1
382150 13252-1 Enclosing Tube Locknut 1
183604 2539-000 Gasket - Wolverine 1
183607 4508-031 O-Ring 1
183082 2449-003 Restrictor Assembly 1
382580 2003-1 Seal Cap 1
382623 638-106 Seal Cap O-Ring 1
958042 2445-000 Strainer 1
— 5521-017
Valve Nameplate (Specify Valve
Type, Voltage & Frequency)
1
REPLACEMENT PARTS KITS
PILOT ASSEMBLY KITS
381125 K-XUL
Pilot Valve, Pilot Differential Valve,
Enclosing Tube Locknut, Enclosing
Tube, Stem and Plunger Assembly,
Enclosing Tube Gasket, Restrictor
Assembly, Strainer, Gasket
1
INTERNAL PARTS KITS
381122 KS-DDR-20
Piston, Body Sleeve, Closing
Spring, Gasket, O-Ring
1
ENCLOSING TUBE KIT
382355 KE-9
Enclosing Tube Assembly,
Enclosing Tube Gasket, Coil Screw
1
* Refer to the table on Page 49 regarding part numbers for the enclosing tube
gasket (tetraseal) and the new wolverine gasket.










