TORQUE DV-2 Automatic Air Tank Drain Valve Instruction Manual

Product Overview

The TORQUE DV-2 Automatic Air Tank Drain Valve (Model TR281923) is designed for use in air compressor systems, specifically for semi-trucks and trailers. This valve automatically drains moisture and contaminants from the air tank, helping to prevent corrosion and maintain optimal air system performance. It is a direct replacement for various Bendix and Midland models, including 281923, 281924, 281923X, 281923N, and Midland KN24000.

Image: Front view of the TORQUE DV-2 Automatic Air Tank Drain Valve.

Specifications

Type	DV-2 Automatic Drain Valve
Model Number	TR281923
Weight	14.8 ounces (approximately 1 lbs)
Package Dimensions	4.37 x 4.21 x 2.76 inches
Inlet Connection Type	National Pipe Tapered
Replaces OEM Part Numbers	Bendix: 281923, 281924, 281923X, 281923N, 281923PTP; Midland: KN24000; Meritor: R955281923N

Installation and Setup

Proper installation is crucial for the optimal performance and longevity of your DV-2 Automatic Drain Valve. It is recommended that installation be performed by a qualified technician.

Safety First: Before beginning installation, ensure the air system is completely depressurized. Disconnect all air lines and power sources to prevent accidental activation.
Locate Existing Valve: Identify the current drain valve on your air tank. Note its orientation and connections.
Remove Old Valve: Carefully disconnect air lines and unmount the old drain valve. Be prepared for any residual moisture or debris.
Prepare New Valve: Inspect the new DV-2 valve for any damage. Apply thread sealant to the NPT (National Pipe Tapered) inlet connection as per manufacturer recommendations to ensure an airtight seal.
Mount New Valve: Securely mount the DV-2 valve in the desired location, ensuring proper orientation for drainage. Connect the air lines to the appropriate ports.
Test System: Once installed, slowly repressurize the air system and check for any air leaks using a soapy water solution. Observe the valve's operation to ensure it cycles correctly and drains moisture.

Image: Side view of the TORQUE DV-2 Automatic Air Tank Drain Valve, showing connection points.

Operating Instructions

The DV-2 Automatic Drain Valve is designed for automatic operation, requiring minimal user intervention once properly installed. Its primary function is to automatically purge accumulated moisture and contaminants from the air tank.

Automatic Drainage: The valve operates based on air pressure differentials or timed intervals (depending on the specific variant, this model is automatic). It will open to release condensed water and oil from the air tank, then close to maintain system pressure.
Regular Monitoring: Periodically observe the valve's operation to ensure it is cycling and effectively draining moisture. A clear discharge of water indicates proper function.
Manual Drain (if applicable): Some systems may have a manual override or a separate manual drain. Consult your vehicle's or compressor's specific manual for details on manual drainage procedures.

Video: An overview of Aftermarket Heavy Duty Parts, demonstrating the quality and range of products, including components similar to the DV-2 valve. This video highlights the robust nature of the parts.

Maintenance

Regular maintenance ensures the longevity and efficiency of your automatic drain valve and the overall air system.

Daily Inspection: Visually inspect the valve and surrounding connections for any signs of leaks, corrosion, or damage. Ensure the drain port is clear of obstructions.
Check for Proper Cycling: Listen for the valve cycling during operation. If it's not cycling or if excessive moisture is accumulating in the tank, it may require attention.
Cleaning: Periodically clean the exterior of the valve to remove dirt and grime. Avoid using harsh chemicals that could damage seals or components.
Filter Maintenance: Ensure that upstream air filters are regularly maintained or replaced as per your air compressor system's recommendations. Clean air reduces the load on the drain valve.
Seasonal Checks: In colder climates, ensure the valve is not freezing. While this model is without a heater, proper insulation or a heated variant might be considered for extreme conditions.

Troubleshooting

If you encounter issues with your DV-2 Automatic Drain Valve, refer to the following common problems and solutions:

Problem	Possible Cause	Solution
Valve constantly leaking air	Debris in valve seat Damaged internal seals Improper installation/loose fittings	Depressurize system and inspect/clean valve. If cleaning doesn't resolve, valve may need replacement. Check all connections for tightness and proper thread sealant.
Valve not draining water	Clogged drain port Valve malfunction Insufficient air pressure to trigger drain cycle	Clear any obstructions from the drain port. Verify air pressure is within operating range. If valve is not cycling, it may need replacement.
Valve not fitting correctly	Incorrect part for application Fittings seized or damaged	Double-check the part number against your vehicle's requirements. Ensure proper tools and techniques are used for installation. Avoid overtightening.

Note: For complex issues or if troubleshooting steps do not resolve the problem, consult a certified mechanic or contact Torque customer support.

Warranty and Support

The TORQUE DV-2 Automatic Air Tank Drain Valve comes with a 1-Year Unlimited Mile Warranty. This warranty covers assurances about the quality of the item and provides for replacement if something goes wrong within the specified period.

For technical assistance, warranty claims, or general inquiries, please contact Torque customer support. You can find more information and contact details by visiting the official Torque Store on Amazon.

Torque TR281923