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High Pressure Valve Plate Assembly Compatible with Ingersoll Rand® 2475 Type 30 – 32310799
Product Overview
The High Pressure Valve Plate Assembly, Part #32310799, is an independently manufactured replacement assembly designed for compatible use with Ingersoll Rand® 2475 Type 30 two-stage reciprocating air compressors.
This valve plate assembly is installed in the high-pressure (HP), second-stage 2.5-inch cylinder of the compressor pump. The high-pressure valve assembly controls the movement of air into and out of the second-stage cylinder during the final compression stage.
During normal compressor operation, the low-pressure cylinder first compresses incoming air before transferring it to the high-pressure cylinder. The high-pressure valve plate assembly then manages the intake and discharge of this partially compressed air as it is compressed to the compressor’s final operating pressure.
Over time, valve plates and associated valve components can experience wear from repeated compression cycles, elevated temperatures, contamination, carbon deposits, or normal mechanical fatigue. Worn or damaged valve components may contribute to reduced air delivery, longer pump-up times, increased operating temperature, unusual compressor noise, or difficulty reaching normal operating pressure.
The 32310799 High Pressure Valve Plate Assembly provides a convenient replacement solution when the existing high-pressure valve assembly requires service or replacement.
Key Features & Benefits
• Compatible replacement for reference part number 32310799
• Designed for compatible use with Ingersoll Rand® 2475 Type 30 compressors
• High Pressure (HP) valve plate assembly for the 2.5-inch second-stage cylinder
• Includes the primary high-pressure valve plate and associated valve components
• Designed to support proper intake and discharge airflow
• Helps restore proper high-pressure valve operation
• Suitable for compressor maintenance, repair, and rebuilding
• Convenient replacement when multiple high-pressure valve components require service
• Designed for proper fit and function in compatible applications
Reference Part Information
Reference Part Number: 32310799
Product Type: High Pressure Valve Plate Assembly
Compressor Brand: Ingersoll Rand®
Compressor Series: Type 30
Compressor Model: 2475
Compressor Type: Two-Stage Reciprocating
Valve Stage: Second Stage
Pressure Stage: High Pressure
Cylinder Size: 2.5 Inch
Application: Compressor Pump Maintenance and Repair
Compatible Compressor Application
The 32310799 High Pressure Valve Plate Assembly is designed for compatible use with the Ingersoll Rand® 2475 Type 30 compressor.
Available parts documentation identifies 32310799 as the High Pressure Valve Plate Assembly for the Model 2475 and places the assembly in the 2.5-inch high-pressure cylinder assembly.
The high-pressure valve plate assembly is associated with the second stage of the Model 2475 compressor pump.
Always verify your existing reference part number and compressor configuration before ordering.
Technical Specifications
| Specification | Details |
|---|---|
| Reference Part Number | 32310799 |
| Product Type | High Pressure Valve Plate Assembly |
| Compressor Brand | Ingersoll Rand® |
| Compressor Series | Type 30 |
| Compressor Model | 2475 |
| Compressor Type | Two-Stage Reciprocating |
| Valve Stage | Second Stage |
| Pressure Stage | High Pressure |
| Cylinder Size | 2.5 Inch |
| Replacement Type | Compatible Replacement |
| Application | Compressor Pump Service |
Valve Plate Assembly Components
The 32310799 High Pressure Valve Plate Assembly consists of the primary high-pressure valve plate and associated intake and discharge valve components.
The documented assembly includes the following components:
High Pressure Valve Plate
Part Number: NSS
The high-pressure valve plate forms the main mounting and sealing structure for the second-stage valve components.
High Pressure Inlet Finger Valve
Part Number: 32236671
The inlet finger valve controls the movement of air entering the high-pressure cylinder during the intake portion of the compression cycle.
High Pressure Valve Retainer
Part Number: 32297343
The retainer secures the associated inlet valve component within the valve plate assembly.
M3 × 12 Hex Head Screws
Part Number: 32297327
These screws are used to secure the associated valve components within the assembly.
M3 Hex Nuts with Lockwashers
Part Number: 97511059
These nuts and lockwashers secure the associated valve hardware.
Discharge Finger Valve Retainer
Part Number: 32295461
The discharge valve retainer secures the high-pressure discharge valve components.
High Pressure Discharge Finger Valve
Part Number: 32241010
The discharge finger valve controls the movement of compressed air leaving the high-pressure cylinder.
Discharge Valve Damper
Part Number: 32295479
The damper supports proper movement and operation of the discharge valve components.
How the High Pressure Valve Plate Works
The Ingersoll Rand® 2475 Type 30 is a two-stage reciprocating compressor.
During the first stage, the larger low-pressure cylinder draws atmospheric air into the compressor and compresses it. The partially compressed air then moves toward the smaller high-pressure cylinder.
The high-pressure valve plate assembly manages airflow through the second-stage cylinder.
During the compression cycle:
1. Intake: Partially compressed air enters the high-pressure cylinder through the inlet valve.
2. Compression: The high-pressure piston compresses the air to a higher pressure.
3. Discharge: The discharge valve opens as required to allow the compressed air to leave the high-pressure cylinder.
4. Final Air Delivery: The compressed air continues through the compressor’s discharge system toward the receiver tank.
Proper operation of the high-pressure valve system is important for maintaining appropriate airflow, pressure development, and compressor performance.
Common Symptoms of High Pressure Valve Wear
A worn or damaged high-pressure valve plate assembly may contribute to:
• Reduced air delivery
• Longer compressor pump-up time
• Difficulty reaching normal operating pressure
• Excessive compressor operating temperature
• Unusual valve or compressor noise
• Reduced compressor efficiency
• Air leakage through the valve system
• Increased compressor operating time
• Poor performance during continuous operation
• Compressor running continuously without reaching normal pressure
These symptoms can have multiple causes. A complete inspection of the valve plate, valves, gaskets, cylinder, piston, and related components should be performed before replacing the assembly.
Common Causes of Valve Plate & Valve Component Wear
High-pressure valve components may experience wear due to:
• Normal operating cycles
• Continuous compressor operation
• Excessive operating temperature
• Contaminated intake air
• Carbon or deposit buildup
• Improper maintenance
• Valve fatigue
• Mechanical damage
• Incorrect installation
• Previous component failure
Regular inspection of valve components during scheduled compressor maintenance can help identify wear before it causes more extensive compressor problems.
When Should the High Pressure Valve Plate Be Replaced?
Replacement may be appropriate when:
• The valve plate is cracked, damaged, or excessively worn.
• Intake or discharge valve components are damaged.
• Valve components are no longer seating correctly.
• The compressor shows reduced air delivery.
• The compressor requires significantly longer pump-up time.
• Excessive valve leakage is detected.
• The compressor is being rebuilt or undergoing major service.
• Inspection identifies damage to the valve plate or associated components.
• The compressor is unable to achieve its normal operating pressure despite proper operation of other components.
Whenever the cylinder head and valve plate are removed, inspect the related gasket and sealing surfaces before reassembly.
Installation Notes
Installation Difficulty: Moderate to Advanced
Before servicing the compressor:
• Disconnect electrical power.
• Completely relieve air pressure from the receiver tank.
• Allow the compressor to cool before beginning service.
• Remove the cylinder head according to the applicable service procedure.
• Carefully remove the existing high-pressure valve plate assembly.
• Clean all gasket and sealing surfaces thoroughly.
• Inspect the cylinder head and cylinder surface for damage.
• Inspect the valve plate and valve components.
• Inspect the piston and cylinder for signs of excessive wear.
• Install new sealing components as required.
• Ensure valve components are correctly positioned before tightening.
• Tighten fasteners according to the applicable service procedure and specifications.
Important: Torque values and installation procedures should be verified using the appropriate service documentation for the compressor configuration being serviced.
Maintenance Tip
When replacing the 32310799 High Pressure Valve Plate Assembly, inspect the following components at the same time:
• High Pressure Cylinder Head
• High Pressure Head Gasket
• High Pressure Valve Plate Sealing Components
• High Pressure Inlet Valve
• High Pressure Discharge Valve
• Valve Retainers
• Discharge Valve Damper
• High Pressure Cylinder Bore
• High Pressure Piston
• Piston Rings
• Intercooler Components
Inspecting related components during the same service can help identify the underlying cause of valve failure and reduce the possibility of repeated repairs.
Inspection Checklist
Before installation, inspect:
☐ High-pressure cylinder head
☐ Valve plate sealing surface
☐ Inlet valve components
☐ Discharge valve components
☐ Valve retainers
☐ Discharge valve damper
☐ Gasket and sealing surfaces
☐ High-pressure cylinder bore
☐ High-pressure piston
☐ Piston rings
☐ Fasteners and threads
☐ Carbon deposits or contamination
What’s Included
The 32310799 High Pressure Valve Plate Assembly includes the primary high-pressure valve plate and associated valve components identified for the compatible Model 2475 application.
The assembly includes:
• One (1) High Pressure Valve Plate
• One (1) High Pressure Inlet Finger Valve – 32236671
• One (1) High Pressure Valve Retainer – 32297343
• Two (2) M3 × 12 Hex Head Screws – 32297327
• Two (2) M3 Hex Nuts with Lockwashers – 97511059
• One (1) Discharge Finger Valve Retainer – 32295461
• One (1) High Pressure Discharge Finger Valve – 32241010
• One (1) Discharge Valve Damper – 32295479
The component identification is based on available Model 2475 parts documentation for assembly 32310799.
Please verify the physical contents of the supplied assembly before installation.
What’s Not Included
Unless specifically stated in the product listing, this product does not include:
• High Pressure Cylinder Head
• High Pressure Head Gasket
• High Pressure Valve Plate O-Ring or separate sealing components
• Low Pressure Valve Plate Assembly
• Low Pressure Valve Components
• High Pressure Cylinder
• High Pressure Piston
• Piston Rings
• Intercooler Components
• Compressor components not specifically listed as included
Compatibility Verification
This product is a compatible replacement High Pressure Valve Plate Assembly identified by reference part number 32310799 and designed for compatible use with the Ingersoll Rand® 2475 Type 30 compressor.
Before ordering, verify:
- Compressor model
- Compressor series
- Existing valve plate reference number
- High-pressure / second-stage application
- Existing valve configuration
- Component dimensions and configuration
Reference Part Number: 32310799
Application: Ingersoll Rand® 2475 Type 30 – High Pressure / Second Stage – 2.5-Inch Cylinder
If you are unsure whether this valve plate assembly is suitable for your compressor, provide the compressor model, serial number, and existing valve plate part number for compatibility verification.
Frequently Asked Questions
Is this an Ingersoll Rand® manufactured part?
No. This is an independently manufactured compatible replacement valve plate assembly designed for use with compatible compressor applications.
What is part number 32310799?
32310799 is the reference part number for the High Pressure Valve Plate Assembly used in the Model 2475 compressor application.
Is 32310799 the high-pressure or low-pressure valve plate?
It is the High Pressure (HP) valve plate assembly. It is associated with the 2.5-inch second-stage cylinder of the Model 2475 compressor.
What components are included in the 32310799 assembly?
The documented assembly includes the high-pressure valve plate, inlet finger valve, valve retainer, mounting hardware, discharge valve retainer, discharge finger valve, and discharge valve damper.
Is the low-pressure valve plate included?
No. The low-pressure valve plate assembly is a separate component. Parts documentation identifies the Model 2475 low-pressure valve plate assembly as 32248205.
Does this include the high-pressure head gasket?
Unless specifically stated in the product listing, the high-pressure head gasket is not included. The valve plate assembly is a separate component from the cylinder-head gasket.
What are the symptoms of a worn high-pressure valve plate?
Possible symptoms include reduced air delivery, longer pump-up times, excessive operating temperature, unusual compressor noise, and difficulty achieving normal operating pressure. These symptoms can have several possible causes, so the valve system should be inspected before replacement.
Should I replace the gasket when replacing the valve plate?
It is generally recommended to inspect and replace applicable gaskets or sealing components whenever the cylinder head and valve plate are removed, particularly if the existing sealing components show compression damage, wear, or deterioration.
Can I install this valve plate myself?
Installation requires mechanical knowledge and appropriate tools. If you are not experienced with reciprocating compressor service, installation should be performed by a qualified technician.
Trademark & Compatibility Notice
Ingersoll Rand® is a registered trademark of its respective owner. The Ingersoll Rand® name, compressor model numbers, and reference part numbers are used on this page solely to identify the equipment and applications for which this independently manufactured replacement product is designed.
This product is not manufactured by, sponsored by, endorsed by, or affiliated with Ingersoll Rand.
