Premium Hydraulic & Pneumatic Quick Connect Couplings
Engineered for reliability, durability, and zero-leak performance. ISO-certified, Parker-compatible, and built for extreme conditions from -20°C to +180°C.
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Engineered for reliability, durability, and zero-leak performance. ISO-certified, Parker-compatible, and built for extreme conditions from -20°C to +180°C.
Zhejiang Songqiao Pneumatic & Hydraulic Co., Ltd., formerly Ningbo Welcome Pneumatic and Hydraulic Co., Ltd., has been a trusted name in fluid connection solutions since 1983. As a leading Chinese manufacturer, we specialize in high-performance hydraulic quick connect couplings, flush face couplers, pneumatic connectors, and industrial fittings.
Our products meet international standards including ISO 7241-A/B, ISO 16028, and are compatible with Parker 3000/6600 series. With precision machining, hardened steel construction, and NBR or SS316 materials, our couplings deliver leak-free performance under pressures up to 10,000 psi.
Hydraulic Models
Flush Face Types
Pneumatic Lines
Global Reach
Engineered for performance, durability, and seamless integration
Engineered for industrial excellence and long-term reliability
Compliant with ISO 7241-A/B, ISO 16028, and other international standards.
Rated up to 10,000 psi for extreme industrial and mobile applications.
Flush face and poppet valve designs prevent fluid loss during disconnection.
Operates reliably from -20°C to +180°C with NBR or Viton seals.
Hydraulic Models
Flush Face Types
Pneumatic Lines
Countries Served
Yes, many of our couplings including LSQ-S1 and LSQ-S6 are designed to be fully interchangeable with Parker 6600 and 3000 series.
We use carbon steel, brass, and SS316 stainless steel depending on the model and application requirements.
Yes, we provide OEM/ODM services with custom branding, packaging, and engineering support.
Standard NBR-sealed models operate from -20°C to +120°C. SS316 versions can handle up to +180°C.
For quotes, technical support, or custom solutions, visit our official website to connect with our team.
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