Oxygen valve knowledge introduction

Oxygen valve knowledge introduction: 1, in physical chemistry experiments, often to use oxygen, nitrogen, hydrogen, argon and other gases. These gases are generally stored in a dedicated high-pressure gas cylinder. When using the pressure reducing valve to gas pressure drop to the required range of experiments, and then through the other control valve fine-tuning, the gas input system. The most commonly used pressure reducing valve for oxygen regulator, referred to as oxygen meter. 2, oxygen valve works: (oxygen valve appearance and working principle). The high pressure chamber of the oxygen pressure reducing valve is connected with the cylinder, the low pressure chamber is the gas outlet and leads to the using system. Indication of high pressure gauge is the pressure of gas stored in the cylinder. Low pressure gauge outlet pressure can be controlled by adjusting screw. Open the cylinder main switch when using, then turn the low pressure gauge pressure adjusting screw clockwise to compress the main spring and drive the diaphragm, spring pad and ejector to open the valve. Such imports of high-pressure gas from the high-pressure chamber after throttling decompression into the low-pressure chamber, and through the exit leading to the working system. Turn the adjustment screw to change the height of the valve opening to regulate the passage of high-pressure gas and achieve the desired pressure value. Relief valves are equipped with safety valve. It is to protect the pressure relief valve and make it safe to use the device, but also the valve failure signal device. If due to the valve pad, valve damage or for other reasons, resulting in the pressure on the outlet and rise above a certain allowable value, the safety valve will automatically open the exhaust. This article Keywords: oxygen regulator

PA plastic (nylon, Polyamide), English name: Polyamide,mainly have ESD PA SHEET,CONDUCTIVE PA SHEET,PA GF SHEET,FIREPROOF PA SHEET.PA66 plastic material is a translucent or opaque milky white crystalline polymer with plasticity.The main varieties in nylon are nylon 6 and nylon 66nylon 6 for polycaprolactam, and nylon 66 for hexamethylene diamine, and nylon 66 is hard l2%.

 

Model USES:

PA66 USA's first no21 SPC highly rigid chemical resistance

PA66 United States first norr513h R533H Glass Fiber reinforced, high strength, special thermal stability, resistance to hydrolysis.

Through FDA and UL certification.

Through GM, Ford, Chryster, Delphi, Valeo and other automotive certifications, it is applicable to auto parts.

Mechanical parts, etc.

PA66 Germany basf A3X2G5 A3X2G7 glass fiber reinforced, red phosphorus flame retardant long-term stability, with excellent mechanical properties.

PA66 plastic raw material of Germany basf A3EG6 A3HG5 A3EG7 A3WG6 glass fiber reinforced with mechanical components that require high rigidity and dimensional stability.

PA66 Germany basf C3U high toughness without halogen and phosphorus flame retardant grade.

PA66 - basf A3K high fluidity for high stress engineering components such as bearings, gears and connectors.

PA66 American dupont 101F is a special grade for good heat resistance products.

PA66 plastic raw material American dupont 101L high strength injection molding improved machine feeding and stripping characteristics.

PA66 American dupont 408 hs injection molding grade good stability.

The PA66 American dupont 408L is suitable for high impact impact engineering products.

PA66 plastic material American dupont 42A color, high viscose silk, molecular weight distribution, can be welded to ultrasonic.

The PA66 American dupont 70G13L 70G13L glass fiber reinforced 13% high strength.

PA66 American dupont 70G33L 70G33L high strength glass fiber increased 33%.

PA66 plastic raw materials USA dupont 70G43L high strength 43% glass fiber reinforced.

The PA66 American dupont 80g33hs1-l ultra high impact fiberglass enhanced 33% super strength.

PA66 plastic raw material United States dupont FR15 FR50 FR60 glass fiber reinforced halogen-free flame retardant grade UL94 V-0

PA66 USA dupont ST801 super toughness excellent impact resistance.


 

 

Advantages:

1. High strength and stiffness;

2. High impact and notching impact strength;

3. High heat deflection temperature ;

4. Good at dempening;

5. Good glide and limp home characters;

6. Good chemical stability against organic solvents and fuels;

7. Resistant to thermal aging (applicable temperature between -40°C and 90°C;

8. Size alternation by humidity absorption must be considered;

 

Disadvantages:

1. The water absorption rate of nylon can be as high as 9%;

2. Physical stability is sensitive to temperature and humidity;

3. Dimensional stability is sensitive to temperature and humidity.

 

Application:

1. Nylon is widely substituted for wear parts of mechanical equipment, or used as quick-wear parts

    of equipment instead of copper and alloy;

2. Shaft sleeve, bearing bush, lining, lining plate, gear;

3. Worm gear, roller copper guide rail, piston ring, seal ring, slide block;

4. Spheric bowl, impeller, blade, cam, nut, valve plate,

5. Pipe, stuffing box, rack, belt pulley, pump rotor, etc.

 

Combustion characteristics: Flame upper yellow, lower end blue, post-combustion plastic dribbling, blistering, special wool after fire, burning of nails and celery.

 

Specification: the thickness of PA/Nylons Plastic sheet material can be produced from 0.3mm to 1.9mm, the normal width is 600mm, the width cannot exceed 1200mm, the length is not limited.
The thickness of plate can be produced from 2mm to 180mm, the usual specification of 2-10mm is 1000mm* 2000mm, and the commonly used specification of 10-180mm is 600*1200 mm. PA/Nylons Plastic can also be customized according to requirements, and the width cannot exceed 1200mm, and the length is not limited.and The diameter of the PA/Nylons Plastic rod can be produced from 2mm to 250mm, the length is 1 meter, and it can be ordered to be more than 3 meters in length.

Color: Black ,white beige and blue, can also be made another color, and the color order is 500KG.


Modified varieties: can be added to the glass fiber, copper powder, and molybdenum disulfide enhancement plate according to customer's requirements.
Add antistatic agent to the permanent plate, the volume resistance value of 10 to the 6 to 9 power.
Add flame retardant to the flame retardant board from UL 94v-0 to HB combustion grade, and other modification requirements are required to customize various additional properties according to the actual use of the customer.

Product certification: most environmental certification reports and safety reports for raw materials, such as SGS report, CTI report, UL report, MSDS safety information, etc.

PA/Nylons Plastic Rod

Pa Plastic Rod,Nylons Plastic Rod,Extrude Pa Plastic Rod,Plastics Nylon Rod

Dongguan Noegem Plastic Products Co.,Ltd , https://www.noegempLastic.com