Graco 15A187 Housing – Regulator Lower Body
The Graco 15A187 Housing serves as the durable lower body (or base) for Graco pneumatic regulator assemblies, providing structural integrity and support for internal components.
Product Overview
This OEM housing is engineered to house critical parts such as the diaphragm, valve spring, and packing. By forming a rigid and stable chamber, it ensures accurate alignment and secure assembly of internal components, which is vital for consistent regulator performance.
Key Features
- Genuine Graco OEM component — Part Number: 15A187
- Durable metal construction for long-term reliability
- Provides secure mounting point for internal valves and springs
- Designed to withstand frequent cycling and pressure fluctuations
- Ensures precise alignment of internal parts for effective sealing and regulation
Technical Specifications
| Part Number |
15A187 |
| Description |
Lower Housing / Body |
| Material |
Metal (high-strength cast or machined alloy) |
| Usage |
Pneumatic regulator assemblies (e.g., Graco regulator series) |
| Approximate Weight |
~3.5 lb |
Compatible Systems
- Graco pneumatic regulators such as models 233760, 233769, and 233770
- Other Graco valve assemblies that use this lower housing as the regulator body
Installation
Proper installation of the Graco 15A187 Housing is essential for safe and reliable regulator performance:
- Depressurize and drain the system fully before disassembly.
- Remove the regulator cap and internal components (spring, diaphragm, etc.).
- Clean the housing thoroughly to remove old seals, debris, or corrosion.
- Install all internal parts (diaphragm, spring, valve components) in the correct order.
- Securely reassemble the regulator cap and tighten fasteners to the proper torque.
- Repressurize the regulator slowly and perform a leak and function test.
Maintenance Tips
- Inspect the housing during regular maintenance for cracks or wear.
- Ensure all O-rings and internal seals are in good condition.
- Replace the housing if it shows signs of deformation or damage.
- When reassembling, torque all fasteners to Graco-specified values to avoid stress on the housing.
Frequently Asked Questions
It forms the lower body of the regulator, supporting internal components like the diaphragm, valve spring, and packing, and ensuring structural stability.
Yes, the 15A187 Housing is an OEM component manufactured to Graco’s strict quality specifications.
It is used in Graco pneumatic regulators including models 233760, 233769, and 233770.
Yes, if the housing is undamaged and shows no sign of wear or corrosion, it can be reused. Always inspect carefully before reuse.
