Model 52831: Inline Check Valve | 1/4" Female NPT Inlet - 1/4" Male NPT Outlet

  • Inline Check Valve 1/4" F NPT to 1/4" M NPT - Kleinn Automotive Accessories - KL 52831

KL 52831

$8.69
$8.69 $8.69

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PROP 65 WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

MODEL 52831: INLINE CHECK VALVE – 1/4" NPT

PREMIUM ONE-WAY BACKFLOW PREVENTION POLICY

Protect and isolate your high-pressure storage reservoir from premature pressure loss with the premium Kleinn Model 52831 Inline Check Valve. Explicitly engineered to maintain strict one-way pneumatic flow, this rugged component is installed directly between your air compressor and the storage tank. By preventing high-pressure air from bleeding backwards into the compressor cylinder head when the system cycles off, it eliminates excessive strain on compressor restart cycles and seals your system tightly against slow overnight leaks.

HEAVY-DUTY PASS-THROUGH ARCHITECTURE

The Model 52831 features a space-saving inline design optimized for clean routing within dense vehicle frame rails or tight engine bays. Outfitted with a 1/4" Female NPT inlet port on one side and a 1/4" Male NPT outlet port on the other, it can thread directly into air tank bungs or link seamlessly into braided lead hoses. Built from durable materials engineered to withstand severe off-road vibration and continuous high heat cycles, it ensures an absolute airtight internal barrier while facilitating maximum unhindered airflow during active compressor pumping.

Why Choose the 52831 Inline Check Valve?

  • Strict One-Way Sealing: Seals instantly against backward pressure flow, protecting internal compressor components and retaining stored air volume.
  • Convenient Male/Female NPT Ports: Features a 1/4" FNPT inlet and a 1/4" MNPT outlet for direct, hassle-free adaptation into existing pneumatic manifolds or hoses.
  • Heavy-Duty Mechanical Internal: Precision-engineered spring and seat mechanism handles aggressive pulsing high-pressure flows without fluttering or sticking open.
  • Eliminates Restart Strain: Keeps head pressure off the compressor piston, ensuring smooth, low-amp startup cycles every time the pressure switch demands air.

THE VERDICT: The definitive one-way safety barrier for onboard air infrastructure. The Model 52831 blends uncompromised one-way mechanical sealing with a versatile inline configuration to ensure your pneumatic network holds maximum pressure exactly where it belongs.

⚠️ Critical Installation Requirements

The Model 52831 Inline Check Valve is a strictly directional pneumatic component. Incorrect orientation will entirely block air delivery from reaching your storage reservoir:

Proper Line Orientation Guideline:

  • 1/4" Female NPT Port (Inlet): Must always face toward the incoming air flow running from the air compressor discharge line.
  • 1/4" Male NPT Port (Outlet): Must always thread into or face toward the air storage tank port receiving the pressurized air.
  • Vibration Insulation: If mounting directly to a high-vibration compressor, it is highly recommended to install the valve on the downstream end of a flexible stainless steel braided leader hose to cushion the internal valve mechanism.

What's Included in the Box

  • Check Valve: One (1) Model 52831 Inline One-Way Check Valve (1/4" FNPT Inlet to 1/4" MNPT Outlet).

🔴 PRO TIP: Prevent hidden system leaks and system bleed-downs. When threading the 1/4" Male NPT end into your storage tank bung or adapter block, avoid over-torqueing to prevent fracturing the brass fitting walls. Always apply a few drops of liquid anaerobic thread sealant compound like our genuine Kleinn JUICE across the male thread leads to block out slow, micro-pneumatic pressure drops.

PRODUCT SPECIFICATIONS

Feature Details
Part Number 52831
Component Classification Pneumatic Inline Check Valve (One-Way Backflow Preventer)
Inlet Thread Interface 1/4" Female NPT (National Pipe Thread)
Outlet Thread Interface 1/4" Male NPT (National Pipe Thread)
Internal Valve Design Heavy-Duty Precision Spring-Loaded Valve Seat Configuration
Primary Functional Utility Isolates tank pressure from compressor head; stops line drain-back
Universal Application Integrates into standard 1/4" NPT Air Tanks

 

Model 52831: Inline Check Valve | 1/4" Female NPT Inlet - 1/4" Male NPT Outlet

$8.69

Does it come with a warranty?

One-Year Limited Defect Warranty for Kleinn Automotive Accessories:

Kleinn Automotive Accessories is committed to delivering high-quality products to our customers. We stand behind the craftsmanship and materials of our products by offering a comprehensive one-year limited warranty. This warranty is extended to the original purchaser, ensuring that when our products are installed properly and used under standard conditions, they will be free from defects in workmanship and materials for a period of one year from the original date of purchase.

This warranty encompasses a promise that the product you have purchased will perform as expected under normal use conditions and will not suffer from flaws in materials or craftsmanship. However, it is important to note that this warranty does not cover any damage that results from abusive use, operation that is not in line with the product’s intended purpose, or harm resulting from exposure to harsh environmental conditions. In the event that a product is found to be defective within the warranty period following a thorough inspection, Kleinn Automotive Accessories reserves the right to either repair or replace the defective item at no additional charge to the purchaser. It is our goal to ensure that our products meet the high standards that our customers expect, but we also want to clarify that Kleinn is not responsible for covering any costs related to the installation of our products, nor are we liable for any loss or damage that may occur as a result of the repair or replacement process of any product under warranty.

Extended Two-Year Warranty for Select Products:

Understanding the specific needs of our customers and the demands placed on certain products, Kleinn Automotive Accessories is pleased to offer an exclusive extended two-year warranty for our 6450/6650 Compressors and 730 Horns. This special warranty extension reflects our confidence in these products’ durability and performance. Eligible products under this extended warranty will enjoy all the benefits of our standard one-year warranty with an additional year of protection, totaling two years from the date of purchase. This extended warranty coverage ensures that these specific models, recognized for their robustness and reliability, receive the extra assurance customers desire for these critical components.

Detailed Warranty Return Procedure:

Should you need to initiate a return under the warranty, we have a straightforward process designed to make it as convenient as possible for our valued customers. To start, you will need to email a copy of your sales receipt, which must be dated within the past year for standard warranty claims or within the past two years for claims under the extended warranty for the 6450 Compressors and 730 Horns. This email should be directed to our Warranty Manager and include your full name, email address, telephone number, and a concise description of the problem you are experiencing.

Upon receipt of your email, a dedicated representative from Kleinn Automotive Accessories will reach out to you directly. Our first step will always be to attempt to resolve the issue through technical support, aiming to provide a quick and effective solution. If the problem cannot be addressed remotely, our representative will issue a Return Authorization number. This number is crucial as it will identify your return throughout the inspection process. You are then required to send the product back to Kleinn Automotive Accessories for a comprehensive physical inspection.

Upon inspection, if the product is determined to be defective due to issues in workmanship or materials, Kleinn will undertake to either repair or replace the product at our discretion. We are committed to ensuring that our customers receive products that meet our high-quality standards, and we will make every effort to resolve warranty claims to your satisfaction. However, if the inspection reveals that the product does not have a material defect, we will return the unit to the customer. In such cases, the shipping costs for the return will be the responsibility of the customer.

Kleinn Automotive Accessories
4045 N. Highway Drive, Tucson, AZ 85705
Tel (520) 579-1531

What's the returns policy?

How To Return An Item

Your item must be in its original unused condition to be returned, unless there is a manufacturer defect. You must return the item within 30 days of your purchase.

1. Please email support@kleinn.com to request a refund and we will assign you a Return Authorization #.

2. Mail your returned item to:
Kleinn Automotive Accessories
Returns Department
4045 N Highway Drive
Tucson, AZ 85705

3. Include in your package a signed letter stating the reason for your return and the original receipt.

Return Non-Exceptions

Merchandise that has been worn, used, or altered will not be accepted for return or exchange.

Restocking Fee

All returns are subject to a 15% restocking fee, which will be deducted from your refund. If shipping and handling fees were applied to your order, they are non-refundable.

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