Model 51212: Straight Compression Fitting for 1/2" Outer Diameter Airline | 1/2" Male NPT

KL 51212

$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 51212: 1/2" MALE NPT STRAIGHT COMPRESSION FITTING FOR 1/2" O.D. TUBE

MAXIMUM CFM HIGH-FLOW PNEUMATIC MANIFOLD PLUMBING

Unleash the unrestricted volume capabilities of your premium onboard air layout with the heavy-duty Kleinn Model 51212 Straight Compression Fitting. Custom-engineered for advanced pneumatic systems that require an absolute maximum delivery of air volume, this massive plumbing interface establishes a direct, full-bore straight path between your air source and supply lines. It stands as an essential baseline component for plumbing high-capacity storage tanks, oversized distribution manifolds, and raw, high-demand air horn solenoids where restrictive lower-tier adapters cause performance starvation.

HEAVY-DUTY SEVERE DUTY COMPRESSION COUPLING

By pairing a large 1/2" NPT thread run with a matching 1/2" tube outer layer, the Model 51212 guarantees your auxiliary air tools and flagship train horns receive the continuous, high-velocity CFM (cubic feet per minute) necessary to output extreme acoustic volume. The precision-machined mechanical compression end embeds directly onto standard 1/2" Outside Diameter (O.D.) high-pressure tubing. This tight fit establishes a permanent structural lock engineered to comfortably absorb extreme system pressure spikes and heavy, non-stop automotive chassis vibration.

Why Choose the 51212 High-Flow Compression Fitting?

  • Unrestricted High-Flow Design: Massive, full-bore 1/2" architecture handles extreme volume movement with minimal friction loss, delivering optimal air speed to feed massive Demon™ Series train horns.
  • Precision Mechanical Ferrule Seal: Included matching compression hardware forms an airtight grip directly onto 1/2" O.D. tubing with zero requirement for pipe flaring or soldering.
  • Oversized 1/2" NPT Threading: Heavy-duty standard 1/2" Male NPT threads spin smoothly and securely into large-capacity air tanks, solenoid blocks, and main lines.
  • Industrial Strength Fatigue Life: Precision-crafted to easily handle the rigorous high-PSI pressures and severe environmental grimes found beneath your vehicle.

THE VERDICT: The definitive straight inline fitting for max-volume air distribution networks. The Model 51212 combines heavy-walled industrial casting with clean thread transitions to guarantee your flagship air horns and high-capacity air systems receive peak volumetric airflow without a single drop in pressure.

What's Included in the Box

  • Compression Fitting: One (1) Model 51212 Straight 1/2" Male NPT to 1/2" O.D. Tube adapter body.
  • Locking Hardware: One (1) pre-matched 1/2" compression nut and inner ferrule locking sleeve kit.

🔴 PRO TIP: Ensure a permanent, zero-leak lock on your air lines. Before tightening the compression nut down firmly using your standard shop wrenches, use a dedicated pneumatic hose cutter to ensure your thick-walled 1/2" O.D. air line is cut perfectly square and clean. Always apply a few drops of liquid thread sealant compound like our genuine Kleinn JUICE across the 1/2" Male NPT threads to seal out slow, phantom pneumatic pressure drops.

PRODUCT SPECIFICATIONS

Feature Details
Part Number KL 51212 (51212)
Fitting Type Straight Inline Max-Flow Mechanical Compression
Thread Connection Size 1/2" Male NPT (National Pipe Thread)
Compatible Tube Sizing 1/2" O.D. (Outer Diameter) High-Pressure Tubing
Installation Hardware Compression Ferrule Sleeve & Threaded Locking Nut
Primary Utility Application Max-volume pneumatic line adaptation for air tanks, manifolds
Component Weight 0.1 lbs

 

Model 51212: Straight Compression Fitting for 1/2" Outer Diameter Airline | 1/2" Male NPT

$8.69

Does it come with a warranty?

Kleinn Automotive Accessories Limited Warranty

Kleinn Automotive Accessories stands behind the quality and craftsmanship of our products. Our products are covered against defects in materials and workmanship when properly installed and used under normal operating conditions, subject to the terms below.

One-Year Limited Warranty

Unless otherwise specified, Kleinn Automotive Accessories products are covered by a 1-year limited warranty from the original date of purchase.

This warranty applies to the original purchaser and covers defects in materials and workmanship under normal use.

If a product is determined to have a covered warranty defect, Kleinn Automotive Accessories will, at its discretion, repair or replace the defective product or component.

What Is Not Covered

This warranty does not cover damage or failure resulting from:

  • Improper installation
  • Misuse, abuse, or improper operation
  • Use outside the product's intended application or specifications
  • Modification or alteration of the product
  • Accidents or physical damage
  • Electrical damage
  • Environmental damage or exposure
  • Normal wear and tear

Kleinn Automotive Accessories is not responsible for installation or removal charges, diagnostic fees, labor costs, vehicle downtime, loss of use, or other incidental or consequential expenses associated with warranty service.

Warranty Claims

To request warranty service, email warranty@kleinn.com with the following information:

  • A copy of your original sales receipt or proof of purchase
  • Your full name
  • Email address
  • Telephone number
  • A brief description of the issue

A Kleinn representative will review your claim and may first attempt to resolve the issue through technical support.

If the product needs to be returned for inspection, Kleinn will provide a Return Authorization (RA) number and return instructions. Products should not be returned without prior authorization.

Once received, the product will be inspected to determine whether the issue is covered under warranty. If a covered defect in materials or workmanship is confirmed, Kleinn will, at its discretion, repair or replace the defective product or component.

If inspection determines that the product does not have a covered warranty defect, the product may be returned to the customer, and the customer will be responsible for applicable return shipping costs.

This limited warranty gives you specific legal rights. You may also have other rights, which vary from state to state.

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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