Pneumatic C-Type Quick Release Coupler Set — Self-Locking Air Hose Fitting Pair

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Pneumatic C-Type Quick Release Coupler Set — Self-Locking Air Hose Fitting Pair

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By HomeDIYer®

Size: 20SP+PP

Packing Quantity: 1 Pair (2 Pcs)

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$22.30 USD

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In stock (500 units), ready to be shipped

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Pneumatic C-Type Quick Release Coupler Set — Fast, Secure Air Hose Connections for Your Workshop

If you've ever wrestled with a stuck air hose fitting mid-project — or had a line pop loose at the worst moment — you know how much a reliable quick-connect coupler matters. Whether you're a DIY enthusiast setting up a home garage compressor or a professional running multiple pneumatic tools on a shop floor, a secure and repeatable connection point is non-negotiable.

Each set includes one matched socket and one plug (1 Pair / 2 Pcs), machined to C-type pneumatic coupler standards. Variants are available in three hose OD sizes — 20mm (≈3/4"), 30mm (≈1-3/16"), and 40mm (≈1-9/16") — and across four body styles (SP, SH, SF, SM) to suit different tool and compressor port configurations. The self-locking collar engages on insertion and requires a deliberate sleeve retraction to release, keeping your air line locked in place during operation.

These quick release air hose fittings are well-suited for connecting air compressors to impact wrenches, pneumatic nail guns, spray guns, and blow guns in home workshops, auto repair bays, and light industrial settings. The C-type standard is one of the most widely adopted pneumatic coupling formats in North American shops, making these a practical addition to any air tool setup.

🔵 Compatibility: Designed for C-type (Industrial/IM-type) pneumatic systems. Fits standard air compressor outlets and pneumatic tools accepting C-type quick-connect fittings. Verify your tool's coupler standard before ordering.

✅ Key Features of These C-Type Pneumatic Quick Release Coupler Sets

🔒 Self-Locking Collar Design — The sleeve locks automatically on plug insertion, preventing accidental disconnection during pressurized operation — no threading, no clamps required.
⚡ One-Hand Quick Connect & Release — Retract the outer sleeve to disconnect in seconds, making tool swaps on a busy air line fast and frustration-free.
📐 Three Hose OD Sizes Available — Choose from 20mm, 30mm, or 40mm to match your existing air hose outer diameter, with multiple body styles per size for flexible installation.
🔧 Matched Socket + Plug Pair Included — Each set ships as a complete 2-piece pair, so you can establish a full quick-connect junction without sourcing components separately.
🏭 C-Type Industry-Standard Fitting — Compatible with the widely adopted C-type pneumatic coupler standard used across North American workshops, auto shops, and light industrial environments.
🔄 Multiple Body Styles for Different Ports — SP, SH, SF, and SM variants accommodate different compressor outlet and tool inlet configurations, reducing the need for adapters.

📐 Technical Specifications — C-Type Pneumatic Quick Release Coupler

Coupler Standard	C-Type (Industrial / IM-Type)
Available Hose OD Sizes	20mm (≈3/4"), 30mm (≈1-3/16"), 40mm (≈1-9/16")
Body Styles	SP (Push-type), SH (Hex-body), SF (Flat-face), SM (Male-thread)
Set Contents	1 Socket + 1 Plug (2 Pcs per pair)
Connection Type	Self-locking quick release (sleeve retract to disconnect)
Typical Working Pressure	Up to approx. 150 PSI (≈10 bar) — see variant options to confirm
Material / Finish	See variant options or contact us to confirm
Thread Standard	See variant options or contact us to confirm
Application	Air compressors, pneumatic tools, workshop air lines
Packing Quantity	1 Pair (2 Pcs)

⚠️ Note: Material finish and thread specifications vary by variant. Please confirm your hose OD and required body style before ordering, or contact us — we're happy to help you find the right match.

❓ Frequently Asked Questions

How do I choose the right size coupler for my air hose?

Match the coupler size to your hose's outer diameter (OD). Our variants are labeled 20, 30, and 40 — corresponding to hose OD ranges of approximately 20mm (≈3/4"), 30mm (≈1-3/16"), and 40mm (≈1-9/16"). When in doubt, measure your hose OD with calipers before ordering. If you're unsure, contact us and we'll help you confirm the right fit.

What do the letter codes in the variant names mean (SP, SH, SF, SM)?

The letters indicate the socket and plug body style included in each pair. "S" = Socket, "P" = Plug. The second letter denotes the body style: P = push-type, H = hex-body, F = flat-face, M = male-thread style. Each listing ships as one matched socket + plug pair (2 pcs total).

How strong is the self-locking mechanism — will it hold under pressure?

C-type pneumatic couplers generally support working pressures of up to approximately 150 PSI (≈10 bar) in typical shop-air applications. The self-locking collar engages automatically on insertion and requires a deliberate sleeve retraction to disconnect, preventing accidental release under load. For exact pressure ratings for your specific variant, please contact us to confirm.

Can these fittings be used outdoors or in humid environments?

These couplers are generally suited for indoor workshop and light industrial use. For prolonged outdoor or high-humidity exposure, periodic lubrication of the locking sleeve is recommended to maintain smooth operation. If corrosion resistance is a primary concern, contact us to confirm the finish specification for your chosen variant before purchasing.

Are these compatible with standard air compressors and pneumatic tools sold in the US?

C-type couplers (also referred to as Industrial-type or I/M-type in some regions) are among the most widely used pneumatic fitting standards in North American workshops. They are generally compatible with air compressors, impact wrenches, nail guns, spray guns, and blow guns that accept C-type connections. Always verify the coupler style your specific tools require before ordering.

Does the set include both the socket and the plug?

Yes. Each listing is sold as 1 Pair (2 Pcs) — one socket and one matching plug — so you have everything needed to create a complete quick-connect air line junction right out of the box. No need to source the socket and plug separately.

How do I connect and disconnect the coupler safely?

To connect: Push the plug firmly into the socket until you hear or feel a click — the self-locking collar engages automatically. To disconnect: Depressurize the line first, then retract the outer sleeve collar on the socket while pulling the plug free. Never attempt to disconnect under full line pressure.

🛒 Select your size and body style above, then add to cart — ships from our US warehouse.

Pneumatic C-Type Quick Release Coupler Set — Self-Locking Air Hose Fitting Pair

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Description

Pneumatic C-Type Quick Release Coupler Set — Fast, Secure Air Hose Connections for Your Workshop

✅ Key Features of These C-Type Pneumatic Quick Release Coupler Sets

📐 Technical Specifications — C-Type Pneumatic Quick Release Coupler

❓ Frequently Asked Questions

Pneumatic C-Type Quick Release Coupler Set — Self-Locking Air Hose Fitting Pair

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