Graco 207884 Packing Kit - Aftermarket Replacement | Bedford 20-1178

High-durability PTFE packings for Graco Monark 5:1 transfer pumps. This aftermarket set restores sealing efficiency, reduces leakage, and stabilizes output on circulating and feed systems. OEM reference Graco 207884; aftermarket reference Bedford 20-1178.

Aftermarket Precision-Machined Industrial Duty

Why Choose This Packing Kit

  • PTFE (Teflon) pack set for chemical resistance and long service in solventborne & waterborne fluids.
  • Restores prime and pressure on worn 2-ball piston pumps; helps reduce pulsation and blow-by.
  • Drop-in aftermarket alternative matched to Monark 5:1 dimensions to minimize downtime.

Color cue: PTFE rings are typically white; metal spacers/washers are steel/silver.

Typical Compatibility

  • Graco Monark 5:1 pneumatic 2-ball piston pumps used as transfer/feed or flush pumps.
  • Common Monark 5:1 assemblies and successors (e.g., GR218956 Monark 5:1 pump assemblies; verify stinger/drum length before service).
  • Plural-component and circulation systems using Monark 5:1 for solvent flush or material feed.

Always confirm your exact pump model and manual bill-of-materials before ordering service kits.

What This Kit Fits

  • Graco Monark series 5:1 transfer/feed pumps (2-ball piston) used on drums, stubby stands, and circulation skids.
  • Systems and skids that specify the Graco 5:1 Monark pump for solvent flushing or material transfer (e.g., units marketed under 218956 Monark 5:1 assemblies).
  • Replacement for factory repair kit called out as 207884 in many Monark 5:1 documents and cross-reference lists.

Technical Specifications

Aftermarket Bedford 20-1178
OEM 207884
FitsGraco Monark 5:1 pneumatic 2-ball piston pumps (transfer/feed & flush service)
TypePacking kit (upper/lower seal set for displacement section)
MaterialPTFE (Teflon) packings with metal spacers/washers
FunctionRestores seal integrity, improves prime/pressure, reduces fluid bypass
PressureUse within the pump’s rated working pressure for Monark 5:1 systems
BrandBedford Precision Parts (Aftermarket)

Packings are wear items; service intervals depend on fluid abrasiveness, filtration, and duty cycle.

Installation Notes

  1. Isolate air, relieve all system pressure, and lock out air supply.
  2. Disassemble the displacement section per your Monark 5:1 service manual.
  3. Remove worn seals; clean rod, cylinder, and gland. Inspect for scoring or burrs.
  4. Lubricate and install new PTFE seals in correct order/orientation; reassemble to torque spec.
  5. Reconnect, prime at low pressure, and check for leaks before returning to service.

Pro tip: Strain fluids and maintain filter screens to extend packing life and stabilize output.

When to Rebuild / Replace

  • Loss of prime or slow prime after idle periods.
  • Visible fluid leakage from the throat or lower section.
  • Excess air consumption or pressure drop to maintain flow.
  • Irregular output/pulsation not resolved by air regulator or checks.

Bedford vs OEM Comparison

FeatureBedford Aftermarket (20-1178)OEM (Graco)
Fit & InterfaceDimensional match for Monark 5:1 displacement sectionFactory kit for specified Monark 5:1 pumps
MaterialsPTFE packings; metal spacers/washersFactory-specified packing materials
AvailabilityIf in stock, ships from Bedford Precision Parts in Bedford Hill, New York.Ships via Graco distribution
ValueLower cost of ownership OEM brand program

FAQs

Yes—this aftermarket kit is sold specifically as a replacement for the OEM Monark 5:1 packing kit with matching dimensions and PTFE materials.
Graco Monark 5:1 pneumatic 2-ball piston transfer/feed pumps, including common assemblies marketed under 218956 Monark 5:1. Check your manual’s parts list to confirm the kit call-out.
Solventborne and waterborne coatings, cleaners, and many resins. Always verify chemical compatibility and follow system pressure ratings.
Prime slowly, verify check valves, and set air regulator to the minimum needed for even flow. Inspect for leaks after the first hour of operation.
If in stock, orders ship from Bedford Precision Parts in Bedford Hill, NY via your selected carrier/service.