The ST DSO PT Series is a single-touch, double shutoff quick coupling designed for precise, leak-free, and clean fluid transfer. Equipped with a dual poppet valve mechanism, it seals both ends automatically upon disconnection — preventing fluid loss and air ingress. This makes it ideal for operations demanding safety, cleanliness, and pressure integrity.
Crafted from high-grade stainless steel or brass, the ST DSO PT Series ensures long service life, corrosion resistance, and consistent performance even in high-pressure systems. Its ergonomic, single-touch design enables fast connection and disconnection, reducing setup time and improving operator convenience.
Key Features
Double Shutoff Design: Automatic sealing on both coupler and nipple sides prevents leakage.
Single-Touch Operation: Quick and effortless connection/disconnection without tools.
Poppet Valve Mechanism: Ensures smooth flow with minimal pressure drop.
Robust Construction: Available in stainless steel or brass for strength and corrosion resistance.
High Cycle Life: Engineered for frequent connect/disconnect usage.
Compact & Reliable: Space-saving design with durable sealing performance.
Maintenance-Friendly: Easy to clean and handle in repetitive-use environments.
Advantages
Prevents fluid loss, contamination, and air entry during connection cycles.
Enhances system cleanliness and operational safety.
Reduces downtime and simplifies maintenance.
Provides consistent flow and sealing performance under high pressure.
Supports efficient workflow with easy one-hand operation.
Delivers long-term reliability in demanding applications.
Applications
Pharmaceutical and Clean Fluid Systems
Hydraulic Test Benches and Pressure Lines
Automation and Robotic Systems
Fuel and Oil Transfer Systems
Industrial Machinery and Equipment Testing
Pneumatic and Process Control Lines
The ST DSO PT Series is the go-to solution for industries that demand safe, clean, and controlled fluid transfer — combining performance, reliability, and user-friendly operation in one compact d