about chunhe
GAS Cylinder Valve manufacturer
Company Overview
chunhe Oxygen Cylinder Valve
Founded in 2000, Qingdao Chunhe is a leading enterprise specializing in the research, development, and production of liquefied petroleum gas (LPG) cylinder valves, industrial gas valves, and compressed natural gas (CNG) cylinder valves. With over 20 years of consistent growth, our flagship brand, “Wandehao Valves,” has gained international recognition. Our products are exported to numerous countries and regions, including Europe, North America, the Middle East, and Southeast Asia.
We pride ourselves on our capability to produce gas cylinder valves that adhere to international standards such as CGA and BS, and our advanced manufacturing processes ensure the highest quality, particularly for valves operating at pressures above 20 MPa.
Our Strengths
Optimized for Precision, Quality, and Efficiency
ISO 9001 Certification
Advanced Facilities
Our 7,000m² factory includes an R&D center, workshops for copper rod production, forging, machining, assembly, and a warehouse. This setup ensures high efficiency, consistent quality, and cost-effective solutions, supporting a stable supply chain and competitive edge.
Automated Production Lines
With fully automated equipment like CNC machines, automated bar machines, and LPG cylinder valve assembly lines, we ensure efficient, precise production. Real-time data monitoring and detailed inspection records guarantee consistent quality and robust after-sales support.
Strict Quality Control
Every valve undergoes rigorous testing to ensure 100% compliance with safety and regulatory standards. Our high-quality valves provide safe gas storage and operation, making them essential for demanding environments and hazardous gas applications.
Our Strengths
Optimized for Precision, Quality, and Efficiency
ISO 9001 Certification
ISO 9001 Certification
Advanced Facilities
Advanced Facilities
Automated Production Lines
Automated Production Lines
Strict Quality Control
Strict Quality Control
Our Philosophy
Application of Oxygen Cylinder Valves
At Chunhe, we are committed to delivering tailored solutions for gas cylinder valves. Over the past two decades, our emphasis on innovation has earned us numerous accolades, including being recognized as a “High-Tech Enterprise”, a “Specialized, Refined, and Innovative Enterprise”, a “Technology-Based SME”, and a “Morning Star Factory”. For six consecutive years, we have also been honored as an “Integrity Taxpayer Enterprise” by the tax bureau. In 2017, we were proud to be recognized as the “Invisible Champion” of Shandong Province’s industry.
Sustainability Commitment
In 2020, Chunhe installed a 470 kW photovoltaic system, generating 590,000 kWh annually and reducing CO2 emissions by approximately 690 tons, underscoring our commitment to environmental responsibility and sustainable development.
Core Values
Guided by quality-driven growth and market orientation, we leverage innovative R&D and advanced manufacturing to deliver high-quality gas cylinder valve products to the global market.
Trusted Partner
Chunhe - Your Trusted Partner
For over 25 years, we have earned the trust of customers around the world, with our products receiving widespread acclaim. Clients from the United States, Canada, Singapore, and other countries have visited our facilities to establish long-term partnerships. At Chunhe, we pride ourselves on delivering not just products, but solutions that foster lasting business relationships.

Team & Atmosphere
Our Team & Company Atmosphere
At Chunhe, we foster a positive and collaborative work environment, supported by a comprehensive benefits package. This creates a culture of teamwork and professionalism across all departments. From R&D to production, and from packaging to shipping, every member of our team is committed to delivering excellence and meeting your needs with efficiency and enthusiasm.
