Good quality New DEVEX (Multi-Layer) Gas Sampling Bags for sales
Dear Judy, It’s a very memorable visit to your factory. Thank you very much for your support and helpful and taking care. Nice to work with you.

—— Chumsin from Thailand

Hi Judy, Thanks again for all your assistance with our order. I shall make sure that we contact you for another quote in a short time.

—— Barry from UK

Hello Judy we received the order this morning, that is a very good delivery time for shipping... Regards

—— Jean from Canada

Hi Judy, I got the bags yesterday, they look nice! Thank you for your nice support and we will make bulk order next week... Very Very nice label!

—— Saowa from Thailand

Hi Judy, yes, these bags worked well and can be reused. Our research work is over now, we thought that the gas only stored for 5 to 6 days in these bags but we stored the gas more than 20 days still the gas composition was same...... Very good! (Feedback about the New Devex bags.)

—— Acharya from Australia

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PTFE straight valve

China PTFE straight valve supplier

Large Image :  PTFE straight valve

Product Details:

Place of Origin: China
Brand Name: HEDE

Payment & Shipping Terms:

Minimum Order Quantity: together with gas sampling bag
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Detailed Product Description

      It is made of polytetrafluoroethylene (PTFE). The patented design utilizes moulding, self-sealing mechanism, no O-ring is inside therefore cross-contamination is eliminated. The connector of PTFE valve is vertical to the bag film,external diameter is 6mm. When the handle is endways, the valve is open, when the handle is sideways, the valve is closed. PTFE switch is easy to handle and swift and sealing tightly,the connecter can be instaled sample cap,which fits sillcone pad used for needle sampling and vacuumizing. It suitable for filling of inorganic and organic gases which are not corrosive to PTFE. The sample cap has a silicone septum that can be used to needle sampling,for the gas in the bag can’t touch the silicone pad in sample cap,can’t be polluted,so the PTFE valve can be used in analysis high accuracy low concentration gas samples collection and preservation.Gas sampling bag with PTFE valve has won the national patent.


Packaging & Shipping:

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• Experienced staffs answer all your questions in fluent English

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PTFE straight valve

Contact Details
HedeTech Co.,Ltd.

Contact Person: Ms. Judy

Tel: 86--18698631865

Fax: 86-0411-88154872

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