Cixi Poolke Hydraulic Pneumatic Co., Ltd. is one of the leading manufacturers and suppliers of kzd brass hydraulic quick couplings in China. We are committed to providing high quality customized service to global clients. Please feel free to wholesale the newest kzd brass hydraulic quick couplings from our factory.
Brass Type Hydraulic Quick Couplings – KZD Series
The KZD Brass Hydraulic Quick Couplings from the POOLKE KZD Series are designed for reliable fluid connection in hydraulic systems, industrial equipment and applications requiring excellent corrosion resistance and stable sealing performance. Featuring a brass construction and durable ball-locking mechanism, this series provides a dependable connection solution for applications where strength, precision and long service life are required.
The KZD Series adopts a double O-ring sealing structure to provide additional sealing reliability, especially in low-pressure and vacuum applications. With precision-machined brass components, captive valve sealing design and multiple seal material options, the KZD Brass Hydraulic Quick Couplings deliver consistent performance for various hydraulic and industrial connection requirements.
Key Features
Brass Construction for Corrosion Resistance
The coupling and nipple are manufactured from yellow pickled brass, providing good corrosion resistance and reliable performance in industrial environments.
Durable Ball Locking Mechanism
The ball-locking structure ensures secure connection between coupling and nipple, improving connection stability during operation.
Double O-Ring Sealing Design
The double O-ring structure provides redundant sealing performance and is suitable for low-pressure and vacuum applications requiring improved leakage prevention.
Reliable Poppet Valve Sealing
The captive valve seal is securely retained by the metal poppet, helping reduce seal washout or damage caused by high-velocity fluid.
Precision Machined Components
The coupling and nipple are precision machined from solid bar stock to ensure accurate dimensions and consistent connection performance.
Flexible Seal Options
Available with different sealing materials, including NBR, FKM and EPDM, to meet various temperature and fluid compatibility requirements.
Applications
The KZD Brass Hydraulic Quick Couplings are suitable for:
- Industrial hydraulic systems
- Hydraulic equipment
- Automation machinery
- Vacuum applications
- Low-pressure fluid systems
- General machinery connections
Technical Overview
| Series | KZD | Seal Options | NBR / FKM / EPDM |
| Type | Brass Type Hydraulic Quick Coupling | Thread Type | Rc Thread |
| Locking Type | Ball Locking | Rated Pressure | 5.5–7 MPa (depending on size) |
| Valve Type | Poppet Valve | Rated Flow | 3–750 L/min |
| Coupling Material | Brass | Temperature Range | -20°C to +80°C (NBR) / -20°C to +180°C (FKM) |
| Nipple Material | Brass |
Interchangeability
Cross-reference examples include:
- Nitto SP Series Type
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