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WEATHERHEAD Universal Interchange Steel Quick-Connect Air Coupling Plug - Universal Interchange Steel Quick-Connect Air Coupling Plugs
WEATHERHEADUniversal Interchange Steel Quick-Connect Air Coupling Plugs

WEATHERHEAD Universal Interchange Steel Quick-Connect Air Coupling Plug

The WEATHERHEAD Quick Connect Hose Coupling is a universal interchange steel quick-connect air coupling plug with a 1/2 in body size. It features a sleeve locking type and a 1/2" -14 thread size, with FNPT…

SKU 3G-OTH-451963

Brand
WEATHERHEAD
Item
Universal Interchange Steel Quick-Connect Air Coupling Plug
Part Number
55
Category
Universal Interchange Steel Quick-Connect Air Coupling Plugs
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Technical Specifications

WEATHERHEAD
Manufacturer Part Number
55
Type
Sleeve, FNPT
Thread Size
1/2" -14
Hose Fitting Size
1/2 in
Coupling Locking Type
Sleeve

Technical Documents

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WEATHERHEAD Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WEATHERHEAD Quick Connect Hose Coupling is a universal interchange steel quick-connect air coupling plug with a 1/2 in body size. It features a sleeve locking type and a 1/2" -14 thread size, with FNPT connection. The manufacturer part number is 55.

Frequently Asked Questions

What is the WEATHERHEAD Quick Connect Hose Coupling used for?

The WEATHERHEAD Quick Connect Hose Coupling is used for connecting air tools and pneumatic equipment to compressed air lines. Its universal interchange steel design ensures compatibility with standard industrial couplings, making it suitable for manufacturing, automotive, and maintenance applications.

What are the specifications of the WEATHERHEAD 55 quick connect coupling?

The WEATHERHEAD 55 coupling has a 1/2 in body size, 1/2 in hose fitting size, and a 1/2" -14 thread size with FNPT connection. It uses a sleeve locking type and is made of steel for durability. The manufacturer part number is 55.

Where to buy WEATHERHEAD quick connect couplings worldwide?

You can source WEATHERHEAD quick connect couplings worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times.

How to install a WEATHERHEAD sleeve-lock air coupling?

To install the WEATHERHEAD sleeve-lock coupling, ensure the air line is depressurized. Apply thread sealant to the 1/2" -14 FNPT threads and hand-tighten the coupling onto the fitting. Use a wrench for a secure connection, but avoid overtightening. Always test for leaks before use.

Used in

Common applications for WEATHERHEAD
Hydraulic power units — Weatherhead 7000 Series Ermeto compression nuts and Ermeto Flareless adapters for leak-tight tube connections on 1/8 in to 7/8 in OD steel tubing.
Pneumatic control panels — Weatherhead flareless bite-type compression elbows and tees for routing air lines without flaring, with thread sizes such as 1/2-20 and 9/16-18.
Lubrication systems — Weatherhead compression fitting plugs (e.g., MPN 7229X05) to seal tube ends or ports in centralized lubrication circuits.
Industrial fluid transfer — Weatherhead quick-connect couplings for temporary or frequent connection of hydraulic hoses and tubing in maintenance operations.
High-pressure hydraulic circuits — Weatherhead hydraulic flange fittings for secure connections on large-diameter tubing and hose assemblies.
Flow control in test stands — Weatherhead needle valves for precise adjustment of fluid flow in hydraulic and pneumatic test rigs.
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WEATHERHEAD Products

3G Electric supplies WEATHERHEAD universal interchange steel quick-connect air coupling plugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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