1. Check and adjust the wet water level of the constant temperature and humidity test chamber
The water level of the water trap should not be too high, so that the water overflows the water trap or the water is too low to make the wet bulb test cloth absorb water abnormally. The accuracy of the wet bulb is about six minutes. The water level of the water reservoir can be adjusted to adjust the level of the water tank.
2. Constant temperature and humidity test chamber wet ball test cloth replacement
When the surface of the test cloth is not clean or hardened, or after the temperature control is completed, the test cloth must be replaced before continuing to perform the temperature and humidity sphericity control. The test cloth should be replaced once every three months. When replacing, use a cleaning cloth to wipe the temperature measuring body (Sen-sor). When replacing the new test cloth, it should be cleaned first.
3. Constant temperature and humidity test chamber condenser dust removal condenser should be regularly maintained monthly, using a vacuum cleaner to remove the dust attached to the condenser heat sink net or use high pressure air to spray dust.
4. Constant temperature and humidity test chamber Check the over temperature protector When the constant temperature and humidity test chamber is running, the maximum value of the over temperature protection setting is increased by 20 ° C ~ 30 ° C. When the temperature in the test box rises to the set point of over-temperature protection, the power supply of the heater will stop. The "OVERHEAT" over-temperature warning light is on but the fan is still running. If it is running for a long time and unattended, please check it before running. Over-temperature protector, is set properly [wet ball over-temperature protector set to 120 ° C].
5. Constant temperature and humidity test chamber inside and outside cleaning and maintenance
1) The constant temperature and humidity test chamber should remove the internal impurities before operation.
2) The power distribution room should be cleaned at least once a year. When cleaning, use the vacuum cleaner to remove the indoor dust.
3) The outside of the cabinet must be cleaned more than once a year. When cleaning, first wipe it with soapy water.
6. Check and maintenance of constant temperature and humidity test chamber humidifier
The water stored in the humidifier should be replaced once a month to ensure that the water is clean. The humidifying water pan should be cleaned once a month to ensure smooth water flow.
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Label: constant temperature and humidity box maintenance specification
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Carbon Steel Press fittings pipeline system is widely used in hot water supply, fire protection.
Compared with traditional pipeline system, it`s not only more economical, safer and healthier,
but also easier and faster for installation with longer service life.
1. Carbon Steel Press Fittings range:
Coupling -- Equal coupling, Reducing coupling, Slip coupling, coupling with male/ female threads;
Elbow -- Equal elbow, Elbow 90°, Elbow 45°, Reducing elbow, Elbow with plain end, Elbow with wall plate, and Elbow with male/ female threads;
Tee -- Equal tee, Reducing tee, Tee with wall plate, and Tee with male/ female threads;
Others-- Pipe cap, Pipe Bridge and Flange connector.
2. Material: Galvanized carbon steel, 1.0034C-Stahl,Kohlenstoffstahl, ACCIAIO AL CARBONIO.
3. Size: 3/8``-4``inch or as request, pipe wall thickness: 1.0--2.0mm
Sizes range:
DVGW W534:1995: 15, 18, 22, 28, 35, 42, 54, 76.1, 88.9, 108mm.
JIS G 3448-1980: 15.88, 22.22, 28.58, 34.00, 42.7, 48.6, 76.1, 88.9, 108mm.
4. Standard:
Press fitting standard: (DIN) DVGW W534-1995; (JIS) JWWA G116:2001; GB/T 19228.1-2003
Pipe standard: DIN10312:2003; GB/T 19228.2-2003
O-ring sealing standard: CEN EN 681-1:2006; GBT 19228.3-2003
5. O-Ring Seal: "Chlorinated butyl rubber" (CIIR), EPDM, HNBR, NBR and FKM, etc.
EPDM (black): max working pressure 16bar, working temperature from -20℃ to 120℃, Suit medium: cold and hot water, compressed Air etc.
6. Galvanization: all carbon steel pipe fittings are plated with rust-resistant zinc.
7. Anneal: all stainless steel pipe fittings are annealed in inert gases before packing.
Installation and Connection Order
Equipments And Quality Control
Orderly Workshop
Efficient Anneal Equipment
Pressure Testing
Tensile Testing
Carbon Steel M Profile Press Fittings(DVGW)
Carbon Steel M Profile Press Fittings,Carbon Steel Press Fittings,Steel Press Elbow Extension Fitting,M Profile Carbon Tee
WENZHOU KASIN VALVE PIPE FITTING CO., LTD. , https://www.kasinvalvefitting.com