En Standard High Performance Vav Fume Hood Fan Fume Cupboard

Product Description

EN Standard High Performance VAV Fume Hood Fan Fume Cupboard


Fume Hood Introduction 

Service 
Selection of the proper type of fume hood to use in a lab should be based on the actual requirements. Penway Science fume hood is made of ceramic fiber aluminum, steel.

Safety
Plays as a pioneer in lab industry
Fume hood VAV valve
Air differential pressure control system for air output and compensation
Third-party on-site inspection
Those four points can make the laboratory to be safe

Health
European and US design, integrated frames.
The sash slideway, balance weight, communication system all of those are embedded in fume hood`s front aluminum frames.

Category
Modular frames design.
The front frame is made of aluminum environmental protection material.
The back frame is made of high-quality steel plate - Baosteel





Constant air volume principle (CAV)
Conventional hood: This term is used to describe a constant air volume (CAV) hood, an older, traditinally less elaborate hood design used for general protection of the laboratory worker. Because the amount elaborate hood design used for general protection of the laboratory worker. Because the amount of exhausted air is constant, the face velocity of a CAV hood is inversely proportional to the sash height. That is, the lower the sash, the higher the face velocity. CAV hoods can be installed with or without a bypass provision which is an additional opening for air supply into the hood.

Variable air volume vs. constant air volume?
• Constant volume is good for small applications, for dedicated exhaust, or for two to four units sharing an exhaust.
• Most hoods have "setup" time and "run" time, or are only used on a limited basis. While slightly more expensive to buy, that makes a two-speed exhaust more cost effective in use. Typically, low speed is 50% of high speed. Set the blower on high for setup, low for runtime, or for limited-use purposes.
• Hoods should be in close proximity to one another to save money on installing and maintaining the exhaust system.
• You can also plan for future hoods to be added to the system. But make sure future expansion is identified in the building plan, so that the whole building exhaust and supply can accommodate future needs. For example, you can buy a blower for a 4-hood system when you're only planning to install two hoods at first. Then just block off your "future" duct until you buy the additional hoods.






 

Fume Hood Comparison Table
	Standard NO.	Leakage Rage / ppm	Air Velocity / m/s	Requirements	Air Exhaust / m3/h at 500m	Energy Comsumption
Domestic Standard	JB-T 6412-1999	0.5	0.5	Basic Need	1250	100%
US Standard	ASHRAE 110-2016	0.05	0.5	Basic Need	1250	100%
European Standard	EN 14175	0.01	0.3-0.5	Sash Open to 500mm Height	600	52%

 

Model	Bench-top	Low-worktop Bench-top	Walk-in
Height	2400mm	2600mm	Customized
Width	1200mm	1500mm	1800mm
Glass	LGGlass (Laminated Glass)
Inner Liner	HPL (Phenolic Compact Laminate)	Phenolic Resin	Ceramic
Worktop	Phenolic Resin	Epoxy Resin	Ceramic
Receptacle	4 pcs	6 pcs	Others
Water Supply	1 pcs	2 pcs	Others
Gas Supply	1 pcs	2 pcs	Others
Base Cabinet	Single Door Cabinet	Double Door Cabinet	Others