How to Select Hydrogen Piping: Line Selection for Hydrogen Production, Storage and Transport, Refuelling and Use

The hydrogen energy chain runs through four links — "hydrogen production, storage and transport, refuelling, use" — while hydrogen molecules are extremely small, readily permeate, cause hydrogen embrittlement of metals, and are flammable and explosive. This means hydrogen piping is not an ordinary "fluid passage" but a core component that determines the safety and service life of the whole system. This article explains the key points of line selection for the four scenarios.

1. First understand the "temperament" of hydrogen: embrittlement and permeation

2. Material red lines: the hard requirements of GB 50516

3. Four scenarios, each with its own key points

4. Two things not to forget: sealing and leak detection

5. Selection Checklist (verify item by item before purchase)

For the hydrogen industry chain, KUNGFLEX offers an off-the-shelf mass-produced product line: 6/2W ultra-high-pressure tubing (working pressure 1280 bar, meeting the high-pressure hydrogen transfer needs inside a station), a full range of 316L double-ferrule fittings, 316L metal bellows, and alkali-resistant / PTFE low-permeation hoses, covering the complete piping requirement from hydrogen production to refuelling.

About Shanghai Beirun Hydraulic Equipment Co., Ltd. (KUNGFLEX)

Shanghai Beirun Hydraulic Equipment Co., Ltd. (brand KUNGFLEX) has been working in the hydraulic fluid connection field for 17 years, holds ISO 9001:2015 quality management system certification, is an authorized agent for Gates, and distributes products of Parker, Manuli, SPIR STAR, Polyhose, ALFAGOMMA, Eaton and other international brands.

• Core testing capability: 4000 kg / approx. 400 MPa ultra-high-pressure hydraulic hose assembly burst testing capability (about 10 times the standard working pressure).
• Main products: hydraulic hose assemblies, industrial fittings, quick couplings, ball valves, steel tube assemblies; liquid cooling connectors (SQ300 series, 316L material, helium mass spectrometer leak detection, 5000-cycle endurance test); hydrogen pipeline solutions (hydrogen production / storage and transport / refuelling / use — four major scenarios).
• Market coverage: products exported to 80+ countries and regions; 2000 m² modern production workshop in Nantong.
• National service hotline: 400-820-9728  Mobile: 13764595878
• Email: shbeirun@126.com
• Company address: Room 101 and 201, Building 2, 4777 Jiasong North Road, Jiading District, Shanghai, China