Graco 235636 Repair Kit - Aftermarket Replacement | Bedford 20-2310

Complete rebuild set for Graco 23:1 Monark displacement pumps. Leather/Teflon packings with stainless wear items help restore prime, pressure stability, and transfer efficiency. OEM reference 235636; Bedford cross-reference 20-2310.

Aftermarket Precision-Machined Industrial Duty

Why Choose This Repair Kit

  • Leather/Teflon packing stack balances chemical resistance and low break-in friction.
  • Stainless seats/balls for corrosion resistance in demanding plant environments.
  • Drop-in dimensions for popular 23:1 Monark supply/transfer pumps.

Color cue: Orange note = handling tip. Keep parts clean and lightly lubricated during assembly.

Typical Compatibility

  • Graco Monark 23:1 air-powered transfer/displacement pumps.
  • Production feed of coatings, adhesives, and sealants within rated viscosity/pressure.
  • Bench and wall-mount kits using EH-series lower ends.

Always confirm by model BOM and series letter before ordering.

What This Product Fits

  • Graco EH333 and EH300 lowers (23:1 Monark family).
  • Graco pump model numbers: 223587 and 223842 (Monark assemblies).
  • Service alternative to OEM kit 235636 with Bedford aftermarket 20-2310.

Cross-references are for convenience; match by exact model and serial/series.

Technical Specifications

Aftermarket #Bedford 20-2310
OEM #Graco 235636
FitsMonark 23:1 pumps incl. EH333/EH300; Graco 223587, 223842
TypePump seal & wear parts rebuild kit
MaterialLeather/Teflon packings; stainless steel checks/seats
FunctionRestore sealing, check action, and smooth pressure delivery
PressureUse within the rated working pressure of 23:1 Monark systems
BrandBedford Precision Parts (Aftermarket)

Consult your Graco service manual for torque values, lubrication points, and orientation.

Installation Notes

  1. Depressurize and lockout air; drain material safely.
  2. Disassemble the lower per the Monark/EH service manual.
  3. Clean bores and seats; inspect for scoring or pitting.
  4. Install new packings in the original order; lightly lube as specified.
  5. Reassemble; leak-test at low pressure, then return to operating pressure.

Pro tip: Replace inlet strainers and check balls with the kit to maximize service life.

When to Rebuild / Replace

  • Loss of prime or slow feed at normal air pressure.
  • Material bypass at packings or frequent air-in-material symptoms.
  • Erratic output due to worn checks/seats.
  • Seal hardening/swelling from chemical exposure.

Bedford vs OEM Comparison

FeatureBedford Aftermarket (20-2310)OEM (Graco)
Fit & InterfaceMatches Monark 23:1 lower dimensionsFactory kit geometry
MaterialsLeather/Teflon packings; stainless checksOEM-specified materials
AvailabilityIf in stock, ships from Bedford Precision Parts in Bedford Hill, New York.Ships via Graco distribution
ValueLower total costOEM brand program

FAQs

Yes. Bedford 20-2310 is referenced against Graco 235636 for Monark 23:1 lowers; confirm by model BOM.
EH333, EH300 and Graco pump models 223587 and 223842 in the Monark 23:1 family.
Leather/Teflon packing stack with stainless steel check and seat components.
Keep components clean, lube packings per manual, and run a low-pressure leak test before returning to service.
If in stock, orders ship from Bedford Precision Parts, Bedford Hill, NY via your chosen carrier/service.