Vacuum Insulated Piping

High‑Efficiency Vacuum Insulated Piping for Low‑Loss Cryogenic Liquid Transfer

Cryogenic Transport Systems PRODUCTS Vacuum Insulated Pipeline

Cryogenic Distribution System Cryogenic Transfer Pipeline High‑Vacuum Insulation Industrial Gas Piping LOX/LIN/LAR/LH₂ Piping Ultra‑Low Temperature Piping Vacuum Insulated Piping Vacuum Jacketed Piping

Vacuum Insulated Piping is a high‑performance cryogenic transfer pipeline engineered to transport ultra‑low‑temperature liquids such as liquid nitrogen, liquid oxygen, liquid argon, and liquid hydrogen with minimal heat loss. Featuring a double‑wall stainless steel structure with high‑vacuum insulation and multilayer thermal shielding, it significantly reduces boil‑off, prevents frosting, and ensures exceptional thermal efficiency. The rigid piping design provides superior durability, long service life, and stable performance in demanding industrial environments. It is widely used in cryogenic storage systems, industrial gas distribution networks, semiconductor manufacturing, medical facilities, and research laboratories requiring reliable, low‑loss cryogenic fluid transfer.

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Product Overview

The Vacuum Insulated Piping is a high-performance pipeline system designed for the transfer of cryogenic liquids, including liquid oxygen, liquid nitrogen, liquid hydrogen, liquid helium, LEG, and LNG. It is widely used in air separation, gas processing, aerospace, electronics, superconductors, chip manufacturing, automation, food & beverage, pharmaceuticals, hospitals, biobanks, rubber, new materials, chemical, and steel industries, as well as in scientific research applications. The system provides efficient thermal insulation, reducing liquid evaporation and ensuring safe and stable cryogenic liquid transfer.

Working Principle

The piping features a high-vacuum, multi-layer, multi-shield insulation design (VI/VJ Piping). It consists of a double-layer stainless steel jacket filled with special multi-layer insulation materials maintained under high vacuum. This design reduces heat leakage to only 0.035–0.05 times that of conventional insulated pipelines, significantly lowering liquid evaporation and improving energy efficiency. The vacuum-insulated structure ensures long-term reliability under extreme low-temperature and high-pressure conditions.

Key Features

Minimal Heat Loss:Heat leakage is only 3.5–5% of traditional insulation pipelines, effectively reducing cryogenic liquid evaporation.
Energy and Cost Savings:High-efficiency insulation reduces energy consumption and operating costs.
Durable Construction:Made from high-quality stainless steel (SUS304), suitable for extreme low temperatures and high-pressure environments.
High Reliability:Multi-layer shield insulation and high vacuum maintain long-term stable performance.
Easy Installation:structure ensures safe and secure connection to cryogenic equipment and piping systems.

Applications

Cryogenic Liquid Transfer:Efficient transfer of liquid oxygen, nitrogen, hydrogen, helium, LEG, LNG, and other low-temperature media.
Industrial Applications:Air separation, gas processing, chemical, steel, rubber, new materials, and food & beverage industries.
Research & Laboratory Use:Superconducting systems, chip manufacturing, and low-temperature experimental or research applications.
Storage & Pipeline Systems:Transfer and distribution of cryogenic liquids in storage tanks, Dewars, cold boxes, and factory pipeline networks.

型号	内径	外径	工作压力	温度	介质	材料	结构	真空度	真空泄漏率
DN10	Ø14	Ø63	PN1.6	’-270℃	LIN(LN2) LOX(LO2) LAr LH2 LNG LN20 LCO2	SUS304	高真空多层绝热	＜0.004pa	＜2*10-10Pa·L/S
DN15	Ø20	Ø76	PN1.6
DN20	Ø25	Ø89	PN1.6
DN25	Ø32	Ø89	PN1.6
DN32	Ø38	Ø102	PN1.6
DN40	Ø45	Ø108	PN1.6
DN50	Ø57	Ø114	PN1.6
DN65	Ø76	Ø133	PN1.6
DN80	Ø89	Ø159	PN1.6
DN100(1)	Ø108	Ø168	PN1.6
DN100(2)	Ø108	Ø219	PN1.6
DN125	Ø133	Ø219	PN1.6
DN150(1)	Ø159	Ø219	PN1.6
DN150(2)	Ø159	Ø273	PN1.6
DN200	Ø219	Ø325	PN1.6
DN250	Ø273	Ø408	PN1.6
DN300	Ø325	Ø426	PN1.6
DN350	Ø377	Ø508	PN1.6
DN400	Ø426	Ø530	PN1.6