Premium Gas Sampling Bags & Detection Solutions

Trusted manufacturer of Tedlar® PVF, Teflon® FEP, DEVEX, and multi-layer gas sampling bags. ISO-certified quality for VOCs, air, and environmental monitoring. Exported globally since 2016.

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72+

Tedlar® PVF Bag Models

44+

Teflon® FEP Variants

40+

Multi-Layer DEVEX Options

About HedeTech

Dalian HedeTech Co., Ltd. is a high-tech chemical enterprise located in Dalian, a beautiful coastal city in northern China. We specialize in the research, development, manufacturing, and export of high-performance gas sampling bags and detection systems.

As a leading supplier of Tedlar® PVF, Teflon® FEP, and multi-layer gas sampling bags, we serve laboratories, environmental agencies, and industrial clients worldwide. Our products are designed for accurate, reliable, and reusable gas storage and analysis.

ISO-Certified Manufacturing
Global Export Since 2016
Reusability & Long-Term Stability

Our Products

High-performance gas sampling bags and detection tools for VOCs, air quality, and industrial applications.

Teflon FEP Gas Sampling Bag

FEP31_1L – with PTFE valve & septum port, syringe sampling

• Chemically inert FEP film
• Reusable & leak-proof
• Ideal for VOCs and trace gases

Fluode Gas Sampling Bag

FLU3_5_1L – PTFE straight valve, silicone septum

• High purity sampling
• Syringe-compatible
• Low adsorption material

Tedlar® PVF Gas Sampling Bag

TDL32_1L – dual PTFE valves, septum port

• Dupont™ Tedlar® film
• Dual-valve design
• VOCs detection ready

DEVEX Multi-Layer Gas Bag

DEV21_30L – side-opening stopcock & septum

• Multi-layer foil construction
• 30L capacity
• Syringe sampling compatible

Kynar PVDF Gas Sampling Bag

KYN31_0.5L – PTFE straight valve, septum port

• High chemical resistance
• Low permeability
• Ideal for aggressive gases

Aluminium-Foil Multi-Layer Bag

MBT31_1L – PC stopcock, silicone septum

• Light-protective design
• 1L capacity
• Reusable & durable

Teflon FEP Dual-Valve Bag

FEP32_1L – dual PTFE valves, septum port

• Dual access points
• High purity sampling
• Leak-tight sealing

GASTEC Gas Sampling Pump

GV-110S – compact, with stroke counter

• Vacuum gas sampler
• Japan-made quality
• Compatible with detector tubes

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Why Choose HedeTech?

ISO-Certified Quality

Manufactured under strict quality control standards.

Reusability

Bags maintain integrity after multiple uses and long-term storage.

Global Support

Serving clients in Europe, Asia, Australia, and North America.

Fast Delivery

Efficient logistics and on-time shipping worldwide.

Frequently Asked Questions

Are your Tedlar® bags compatible with VOC analysis?

Yes, our Tedlar® PVF bags are specifically designed for VOC sampling and detection, ensuring minimal adsorption and high recovery rates.

Can the gas sampling bags be reused?

Yes, most of our bags (especially Teflon® FEP and Tedlar® PVF) are reusable and maintain gas integrity for over 20 days when stored properly.

Do you offer custom sizes or valves?

Yes, we support OEM/ODM services and can customize bag capacity, valve types, and labeling per client requirements.

What regions do you ship to?

We ship globally, including North America, Europe, Southeast Asia, Australia, and the Middle East.

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