A delegation from the Economic Development Zone of Feixi County investigated the company's products and scientific research results
Recently, Lu Ge, member of the Standing Committee of the Feixi County Party Committee, deputy head, and first secretary of the Economic Development Zone of Feixi County, visited the company. General Manager Kong Lingjie warmly received and accompanied the inspection.
Leaders of Hefei Investment Promotion Bureau surveyed the Best R & D Center
On March 8, 2019, Zhu Shengli, deputy secretary general of the Hefei Municipal Government and director of the Investment Promotion Bureau, and his party visited the product research and development center of Best Group. Research.
Best Group 2018 Highlights
On January 30, 2019, Best Group ’s annual meeting was successfully held!
The Fifth National Energy Storage Science and Technology Conference
From October 26 to 28, 2018, the Fifth National Energy Storage Science and Technology Conference was held at Huazhong University of Science and Technology.
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Anhui BEQ Equipment Technology Co., Ltd

Hefei Baisi New Materials Research Institute

Hefei Oulai Di Optoelectronics Technology Co., Ltd


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quick clamp flange

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  This is a pair of smart sealing assembly for tube vacuum furnace to tighten both ends of Quartz tube without any welding and gluing. Size optional including 25/50/60/80/100。Dimensions (25/50/60mm) and material (304S, 316L) are optional.






For both sides: A pair of  flanges with 4 high-temperature silicone O-rings(300°C Max.) and 1 mechanical gauge 

For left side: Left side flange with 2 high-temperature silicone O-rings(300℃Max.) and 1 mechanical gauge 

For right side: Right side flange with 2 high-temperature silicone O-rings(300℃Max.)




Made of Stainless Steel with 2 high-temperature silicone O-rings (300℃ Max) on each flange.  (for both sides order)


Seal tube by tightening screws on the flange without any welding and glue.


diameter stainless steel gas inlet/outlet fitting for PVC hose tube (tube not included).


Two vacuum valves and one pressure gauge are installed with flanges.(for both sides order)


Excellent for vacuum sealing any type of 1" O.D. tubing: ceramic, glass, quartz and steel pipe.


Designed for fitting 1" diameter tube furnace




10E-3 pa by molecular pump and 10E-1 paby mechanical pump






Click to enlarge




Must put a refractory tube block between the flange and the sample to avoid melting the silicone O-ring by heat radiation. Please order a ceramic block in related products.

Please do not over tighten the three hex screws on the flanges to avoid overpressure incidents. The recommended torque is 35~40 inch-lbs.


For liability considerations, does not recommend or endorse the use of any toxic, flammable or corrosive gases with our flange assemblies.




Corresponding parameter set not found, please add it in property template of background
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