Home
Shop by Brand
GRACO
Components & Accessories
Automation & Control Equipment
Valves & Accessories
Valves
GRACO 187878 - Valve Housing, 1-1/4" NPT(F) inlet & outlet

GRACO 187878 - Valve Housing, 1-1/4" NPT(F) inlet & outlet

Item #: 187878

Price: $1,766.79

Expected ship date is Apr 15th 2026

QTY:

Usually ships in 2-3 business days

Most orders over $299
ship for free | See Details

Have a Question?
ASK NATE

Get Expert Advice or

Call 888-654-8898

Get Expert Advice or

Call 888-654-8898

Need this Product for a Specific Application?

Use our handy finder to find the exact model for your needs.

FIND MY PRODUCT

Item Description
GRACO 187878 - Valve Housing, 1-1/4 NPT(F) inlet and outlet

HOUSING; 1-1/4 NPT(F) inlet and outlet; used on 288117

Specifications
- Thread: 1-1/4 NPT(F) inlet and outlet
Compatible Equipment
- 903508 - Back Pressure Regulator, Low Pressure Corrosion Resistant, 15 GPM, 180 Max PSI, Manual, 3/8 (m) x 3/8 (F), w/ Gauge, Series A, Model 25R564, Series A
- 916154 - Back Pressure Regulator, Low Pressure Corrosion Resistant, 180 Max psi, SST & Carbide, Manual, 1-1/4 (F) x 1-1/4 (F), w/ Gauge Stainless Steel Back Pressure Valve
- 288117 - Pneumatic Fluid Back Pressure Regulator, 20 GPM, 300 PSI, 1-1/4" NPT Inlet/Outlet, w/ gauge
Related Parts
- 101682 - Socket Head Cap Screw
- 111697 - Pipe Plug
- 104144 - Compression Spring
- 160033 - Guide, Spring
- 616439 - Seat, Stainless Steel & Tungsten Carbide
- 616440 - Diaphragm Retainer, Stainless Steel & Tungsten Carbide
- 172193 - Regulator Diaphragm (Low‑Pressure Fluid Regulators)
- 186872 - Adjustment Screw
- 171117 - Acetal Copolymer Gasket
- 164864 - Plate, Diaphragm, Zinc Alloy
Reference number 15 in the parts list with quantity 1 Part number 15 in the assembly diagram. Quantity required: 1. This is part of Model 916154 which includes items 1 to 22. Reference number 101 in the diagram

Reference Manuals
- 307107 (Page 6) Stainless Steel, Waterbase Compatible, Back Pressure Valve
- 310537 (Page 5) Back Pressure Valve
- 311595 (Page 6) Pneumatic Back Pressure Regulator
Specifications
GRACO 187878 - Valve Housing, 1-1/4 NPT(F) inlet and outlet

HOUSING; 1-1/4 NPT(F) inlet and outlet; used on 288117

Specifications
- Thread: 1-1/4 NPT(F) inlet and outlet
Compatible Equipment
- 903508 - Back Pressure Regulator, Low Pressure Corrosion Resistant, 15 GPM, 180 Max PSI, Manual, 3/8 (m) x 3/8 (F), w/ Gauge, Series A, Model 25R564, Series A
- 916154 - Back Pressure Regulator, Low Pressure Corrosion Resistant, 180 Max psi, SST & Carbide, Manual, 1-1/4 (F) x 1-1/4 (F), w/ Gauge Stainless Steel Back Pressure Valve
- 288117 - Pneumatic Fluid Back Pressure Regulator, 20 GPM, 300 PSI, 1-1/4" NPT Inlet/Outlet, w/ gauge
Related Parts
- 101682 - Socket Head Cap Screw
- 111697 - Pipe Plug
- 104144 - Compression Spring
- 160033 - Guide, Spring
- 616439 - Seat, Stainless Steel & Tungsten Carbide
- 616440 - Diaphragm Retainer, Stainless Steel & Tungsten Carbide
- 172193 - Regulator Diaphragm (Low‑Pressure Fluid Regulators)
- 186872 - Adjustment Screw
- 171117 - Acetal Copolymer Gasket
- 164864 - Plate, Diaphragm, Zinc Alloy
Reference number 15 in the parts list with quantity 1 Part number 15 in the assembly diagram. Quantity required: 1. This is part of Model 916154 which includes items 1 to 22. Reference number 101 in the diagram

Reference Manuals
- 307107 (Page 6) Stainless Steel, Waterbase Compatible, Back Pressure Valve
- 310537 (Page 5) Back Pressure Valve
- 311595 (Page 6) Pneumatic Back Pressure Regulator

GRACO 187878 - Valve Housing, 1-1/4" NPT(F) inlet & outlet

GRACO 187878 - Valve Housing, 1-1/4" NPT(F) inlet & outlet

Have a Question? ASK NATE

Have a Question?
ASK NATE