GB Standard Check Valve

GB Standard Check Valve is an automatic one-way valve manufactured according to Chinese national GB standards. Available in swing, lift, and vertical types, it uses reliable sealing structures to prevent medium backflow and protect pipelines and equipment. It is widely used in domestic industrial piping systems.

Applications

GB Standard Check Valve is widely used in chemical plants, power stations, water supply systems, petroleum pipelines, industrial process systems, and general fluid transportation applications. It is commonly selected by engineering companies, EPC contractors, valve distributors, and industrial maintenance suppliers for pipeline protection.

Core Features

1. GB Standard Manufacturing

Designed and manufactured according to GB/T12236 and GB/T12224 standards, ensuring compliance with Chinese industrial requirements.

2. Multiple Valve Structure Options

Available in swing, lift, and vertical check valve designs to meet different pipeline installation and operating conditions.

3. Reliable Backflow Prevention

Automatically blocks reverse medium flow to protect pumps, pipelines, and other connected equipment.

4. Standardized Dimensions & Testing

Face-to-face dimensions comply with GB/T12221, flange dimensions follow GB/T9124.1, HG/T20592, and JB/T79, with inspection according to GB/T26480.

OEM & ODM Service

We provide OEM and ODM services including customized valve sizes, pressure ratings, materials, valve structures, flange standards, logos, nameplates, coatings, and packaging to meet different industrial project requirements.

Quality Assurance

Each GB Standard Check Valve undergoes strict material inspection, dimensional verification, pressure testing, and sealing performance checks before shipment. Inspection reports, material certificates, and quality documents are available upon request.

Warranty Service

We provide warranty coverage for manufacturing defects under normal operating conditions, along with technical support and after-sales assistance to ensure reliable long-term valve operation.

Shipping Service

GB Standard Check Valves are packed in export-standard wooden cases with protective packaging to ensure safe international transport. We support sea freight, air freight, and customized logistics solutions with complete export documentation.