Cixi Poolke Hydraulic Pneumatic Co., Ltd. is one of the leading manufacturers and suppliers of st hydraulic quick couplings in China. We are committed to providing high quality customized service to global clients. Please feel free to wholesale the newest st hydraulic quick couplings from our factory.
Open Type Hydraulic Quick Coupling – ST Series
The ST Hydraulic Quick Couplings from the POOLKE ST Series is designed for applications requiring high flow capacity, low flow resistance and efficient fluid circulation. With a non-valved open design, this series provides a direct flow path to minimize pressure loss and improve system cooling performance.
The ST Series features a durable ball-locking structure and precision-machined components to ensure reliable connection and long service life. Available in steel, brass and stainless-steel materials, the ST Hydraulic Quick Couplings offers flexible solutions for cooling systems, hydraulic circuits and industrial equipment where maximum flow performance is required.
Key Features
Non-Valved Open Design
The open flow structure eliminates valve restrictions, providing minimal flow resistance and improved fluid transfer efficiency.
Maximum Flow Performance
The optimized internal passage design helps reduce pressure drop and supports efficient cooling in hydraulic and circulation systems.
Reliable Ball Locking Mechanism
The durable ball-locking structure provides secure connection and stable performance during operation.
Precision Machined Construction
The coupling and nipple are manufactured from solid bar stock with precision machining to ensure consistent quality and long service life.
Multiple Material Options
Available in steel, brass and stainless-steel versions to meet different requirements for strength, corrosion resistance and application environments.
Flexible Connection Options
Various thread configurations and connection types are available for easy installation in different hydraulic and industrial systems.
Applications
The ST Hydraulic Quick Couplings is suitable for:
- Cooling systems
- Mold temperature control equipment
- Industrial machinery
- Hydraulic circulation systems
- Fluid transfer applications
- Equipment requiring high flow connection
Technical Overview
| Series | ST | Material | Steel / Brass / Stainless Steel |
| Type | Open Type Hydraulic Quick Coupling | Connection Type | Threaded Connection |
| Valve Type | Non-Valved Design | Seal Material | NBR |
| Locking Type | Ball Locking | Temperature Range | -20°C to +100°C (depending on seal material) |
Interchangeability
Cross-reference examples include:
- Parker ST Series Type
- Hansen ST Series Type
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