Mask breathing resistance tester adjustment device

Standard Group (Hong Kong) Co.
, Ltd.
is engaged in the research and development and production of textile testing instruments, recently according to market demand to increase the production of masks, protective clothing, meltblown cloth a full set of testing instruments, short delivery period, some of the stock, welcome customers who need to purchase in time to inquire
.
The mask respiratory resistance tester is used to determine the inspiratory and expiratory resistance of medical masks, disposable medical masks, ordinary masks, dustproof masks, anti-haze masks and meltblown cloth for the production of masks under specified conditions, and is suitable for mask production plants, meltblown cloth production plants, and labor protection products inspection institutions to conduct relevant testing and inspection
of mask meltblown cloth products 。 Advantages: 1.
The company has been engaged in testing instruments for more than ten years, with a strong after-sales service team; 2.
Be able to deal with various problems in a timely and rapid manner to relieve customers' worries; 3.
Complete spare parts, solve the trouble of ordering spare parts for a long period of time; 4.
Provide outsourced maintenance services; 5.
Long-term supply of various types of commonly used testing instruments; 6.
Keep up with the update of industry standards, and provide test instruments
that meet the new standards in a timely manner.
Applicable standards: GB/T 2626-2019 respiratory protective equipment self-priming filter anti-particulate matter respirator 6.
5 suction resistance 6.
6 exhalation resistance GB/T 32610-2016 daily protective mask technical specifications 6.
7 suction resistance 6.
8 exhalation resistance GB/T 2890-2009 respiratory protection self-priming filter gas mask 6.
9 YY/T 0969-2013 disposable medical mask 4.
6 ventilation resistance Main parameters: 1.
Flow measurement process: 0L/ min ~ 100L/min, accuracy of ±2%; 2.
Micro pressure metering process: -1000Pa~1000Pa, accuracy is 1Pa; 3.
Pumping pump: not less than 100L/min; 4.
Constant ventilation: (85±1) L/min; 5.
Equipment power supply: AC220V, 50Hz
.
Adjustment device: the opening end of the suction screw sleeve is connected to one end of the breathing valve box, the suction valve seat is fixed in the suction screw sleeve by the suction sheath, and the suction check valve plate is installed on the suction valve seat; The opening end of the exhalation screw sleeve is connected to the other end of the breathing valve box, the exhalation valve seat is fixed in the exhalation spiral sleeve by means of an exhalation sheath, and the exhalation check valve plate is mounted on the exhalation valve seat; The suction screw sleeve and the exhalation screw sleeve are provided with gas inlet channel and gas outlet channel respectively; The full face cover is connected
to the passage of the breathing valve box by means of a jacket nut.
The use of this device can simulate different exhalatory resistance and different inspiratory resistance conditions, which provides a possibility
for evaluating the changes in cardiopulmonary function and working ability of the human body under such conditions.
The experimental results obtained in this way can not only evaluate the respiratory ergonomics of the specific breathing respirator breathing resistance, but also provide human parameters
for the design of the submersible respirator.
This utility can well meet the requirements of regulating respiratory resistance, and has been applied in the manned experiment of simulating 450m heliox-oxygen saturation diving research conducted by the Haijun Medical Research Institute and the impact of high pressure exposure on the diver's ability to work, with good sealing, one-way, does not affect the subject's breathing, wearing comfort and other characteristics
.