Maxton UC1A - EXPLODED VIEW PARTS LIST UC4 M, UC4 B44

1728 Orbit Way - Minden, Nevada 89423 P: 775-782-1700 F: 775-782-1701 info@maxtonvalve.com www.maxtonvalve.com
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\\SERVER\CATALOG2019\2019CatalogRev2
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PART # DESCRIPTION PART # DESCRIPTION PART # DESCRIPTION
28346MW CONTROL PLATE ASSEMBLY (UC4M)  VALVE CLOSURE ASSY (Continued)  VALVE BODY (Continued)
28346W CONTROL PLATE ASSEMBLY (UC4) 

BPS adjuster assy (continued) 28338E4  BPS Piston & guide assy (std.)
280070

Adjuster screw assembly 224600

 Spring guide 233800   BPS piston
203400

 Seal nut 2323C0

 Spring 28371E
*
 Piston ring & expander assy
227000
*
 Teflon seal 235100

 Poppit 2320A0

 BPS piston sleeve (w / pin)
200700

 Adjuster screw 233600

 Seal ring 232100
*
 Seal ring
282990

Manual lowering assembly 2353C0

 Seal retainer 231600

 Snap ring
229900

 Manual lowering screw 283240

Down leveling adjuster assembly 233900

 Spring
233600
*
 Seal ring 233100

 Snap ring 2340E4

 BPS guide (standard)
230000

 Handle (roll pin) 233000

 Lock nut 283430

Pump flange assy, 2" Grooved
28170D

Up strainer assembly 232400

 Down leveling adjuster screw 232100
*
 Seal ring
2170D0

 Up strainer cap 210500
*
 Seal ring 2362B0

 Snap ring
2363A0

 Transfer line with screen 210200
*
 Seal ring 236100

 Check return
210500
*
 Seal ring 224600

 Spring guide 234300

 Flange, 2" Grooved
237200
*
 Seal ring 232300

 Spring 235700

 Spring
28170B

Down strainer assembly 232200

 Sleeve 235600

 Return check rod
2170C0

 Down strainer cap 283250

Down speed adjuster assembly 283580

Pump flange assy, 2" Threaded
2170B0

 Down strainer base with screen 233000

 Lock nut 232100
*
 Seal ring
210500
*
 Seal ring 232500

 Down speed adjuster screw 2362B0

 Snap ring
236900

 Ball, 1/4" 210200
*
 Seal ring 236100

 Check return
237200
*
 Seal ring 237000

 Spring 235800

 Flange, 2" Threaded
283860

Coils bracket assembly 237300

 Spring guide 235700

 Spring
238600

 Coil Bracket 283010  Relief adjuster assembly 235600

 Return check rod
207700

 Grommet  Note: Available in complete closure assy only. 28347W

Regulator assembly
207900

 Ground screw 233000   Lock nut 2053W0

 Up leveling speed adjuster
247300

 Washer 230400   Relief cartridge 210700
*
 Seal ring


UT Regulator 237200
*
 Seal ring 2347W0

 Regulator
2379S0

 Screw (1/4-28 button head) 230100

 Relief adjuster screw 212200

 Spring
210800

 Seal Ring 210500
*
 Seal ring 214200

 Spring boss
234400

 Spring 230200

 Spring boss 

 
213400

 Ball 3/16" 230300

 Spring 28350B

Regulator rod assembly


Control plate assy miscellaneous 230500

 Ball retainer 235200

 Pipe plug
282920
+
 Solenoid tube assembly 236900

 Ball 214100

 Set screw
29298A2
+
 Solenoid seat kit 

Valve closure assy miscellaneous 2350B0

 Regulator rod
292950
+
 Solenoid ball cage kit 235200

 Pipe plug (A & B ports) 

 
2385LC
*
 Seal ring 2379A0

 Screw (1/4 -28 button head)
   
2372LC
*
 Seal ring 2107LC
*
 Seal ring
 MISCELLANEOUS
21019LC
*
 Seal ring 238000

 Ball 213000   Lock ring (UC4M)
238100

 Screw (# 10-32) 244500 Seal plug 233500   Lock ring (UC4)
210800
*
 Seal ring 2105LC
*
Seal ring 212900   Screw (regulator cap)
244500

 Seal plug 208700

 Spring 2139B0   Screw (control plate)
244600

 Seal plug 

  2319B0   Diffuser
2105LC
*
 Seal ring 2394MW VALVE BODY (UC4M) 232900   Screw (valve closure)
208700

 Spring 2394W0 VALVE BODY (UC4) 234200   Screw (pump flange)
238000

 Ball, 5/16" 283070

Down / Check seat assembly 2354B0   Coil cover stud
2379A0

 Screw (¼-28 button head) 230900

 Snap ring 2375B0   Coil cover
2379S0

 Screw (UT/DT ¼-28 button head) 230700

 Down / Check seat 2376A0   Jam nut (coil cover)
238100

 Screw (# 10-32 button head) 231200

 Spacer 237700   Washer (coil cover)
263900
*
 Seal ring 230600

 Seal ring 2379A0   Screw (bracket)
239503

 Orifice (max UA / US) (Blue) 28317E4

Down / Check piston & guide assy 235200   Pipe Plug
239504

 Orifice (max UT) (Steel) 232100
*
 Seal ring 28082B 
Solenoid coil Assembly
239513

 Orifice (max DT) (Steel) 232000

 Down piston sleeve 2082B0  
Solenoid coil 115 VAC / 24 VDC
(Red)

239515

 Orifice (UT Reg.) (Black) 2317A0

 Down piston 208880   C-Frame


  28371E
*
 Piston ring & expander assy
   
    231600

Snap ring
Notes: -

REFER TO APPLICATION FLOW
CHART FOR GUIDE SELECTION.
E1: 28338E1 (BPS piston assembly)
28317E2 (Down piston assembly)
E2: 28338E2 (BPS piston assembly)
28317E3 (Down piston assembly)
* = PARTS INCLUDED IN
SEAL KIT # 291540
+ = PARTS INCLUDED IN
SOLENOID KIT # 292920
28328MW VALVE CLOSURE ASSEMBLY (UC4M) 231500

 Spring
28328W VALVE CLOSURE ASSEMBLY (UC4) 2314E4

Down / Check guide assy (std.)
283330
*
BPS adjuster assembly 204500
*
 Seal ring
233100

 Snap ring 230800

 Seal retainer ring
233000

 Lock nut 204600

Snap ring
233300

 BPS adjuster screw 283410

Up seat assembly
210200
*
 Seal ring 230900

 Snap ring
210500
*
Seal ring 234100 BPS seat
230600 Seal ring
EXPLODED VIEW PARTS LIST UC4M, UC4 B44