CB-HYDRAV-KD Threaded Dry-Break Hydraulic Coupler for Aviation Ground Systems – Carterberg
CB-HYDRAV-KD is a threaded hydraulic quick coupler designed for high-integrity connections in critical aerospace ground support systems. Featuring a vibration-resistant locking sleeve and dry-break valve architecture, it prevents fluid spillage and ensures secure operation under pressure.
Unlike traditional push-to-connect systems, the CB-HYDRAV-KD uses a rapid screw-in sleeve with integrated safety ring, making it especially suited for applications where anti-loosening is mandatory—such as aircraft testing benches and mission-critical mobile hydraulic units.
Key Features
• Threaded Sleeve Locking: Quick-connect by screwing the external sleeve, with mechanical lock ring for anti-vibration safety.
• Dry-Break Architecture: Dual shut-off valve system minimizes air inclusion on connection and fluid loss on disconnection.
• EPDM 41B Seals: Compliant with NF L 17-241 standard, compatible with phosphate-ester fluids (e.g., Skydrol®).
• SAE AS 4395 Port Adaptation: Designed to integrate with standard test bench manifolds and aircraft hydraulic ground points.
• Broad Working Range: Pressure rating up to 450 bar / 6525 psi, temperature from -40°C to +150°C.
Technical Specifications
| Parameter | Value |
| Model | CB-HYDRAV-KD |
| Connection Type | Screw-to-connect with safety locking ring |
| Valve Type | Double shut-off, dry-break |
| Seal Material | EPDM 41B (Skydrol-compatible) |
| Body Material | Anodized Aluminum |
| Spring & Valve Material | Stainless Steel |
| Nominal Diameter Options | 1/4",3/4",1",1-1/2" |
| Working Pressure | Up to 450 bar (6525 psi) depending on size |
| Operating Temperature | -40°C to +150°C |
| Connection Standard | SAE AS 4395 interface |
| Spillage on Disconnect | 0.18 ml – 1.16 ml (size-dependent) |
Dimensional Overview
Female (Socket)
| Body Size | PARTNO. | A | B | C | HEX |
| 1/4" | CB-S2B-5MU-E | 41 | 39 | 14 | 14 |
| 3/4" | CB-S6B-5MU-E | 49 | 60 | 22 | 33 |
| 1" | CB-S8L-5MU-E | 79 | 70 | 23 | 48 |
| 1"1/2 | CB-S10B-5MU-E | 91 | 80 | 28 | 54 |
Male (Plug)
| Body Size | PARTNO. | D | E | F | HEX |
| 1/4" | CB-P2B-5MU-E | 35 | 25 | 14 | 29 |
| 3/4" | CB-P6B-5MU-E | 61 | 41 | 36 | 41 |
| 1" | CB-P8L-5MU-E | 73 | 60 | 23 | 54 |
| 1"1/2 | CB-P10B-5MU-E | 81 | 70 | 28 | 70 |
Application Scenarios
CB-HYDRAV-KD couplings are mainly used in:
• Aircraft Hydraulic Test Benches
• Aviation Ground Maintenance Systems
• Tooling and Panel Interfaces with Anti-Loosening Requirement
• Mobile Equipment Requiring Dry-Break Under Pressure
Why Choose Carterberg’s CB-HYDRAV-KD?
In sectors where failure is not an option—such as aerospace ground control and hydraulic lab testing—CB-HYDRAV-KD stands out for its:
• Enhanced anti-vibration safety via screw sleeve
• Minimal fluid loss and air ingress
• Seal compatibility with aerospace-grade fluids
• Compact, modular design available in multiple sizes
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