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Teflon bellows
Classification:
Keyword: Teflon bellows
- Product Description
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- Commodity name: Teflon bellows
- Commodity ID: 1248222375862489088
- 上架时间: 2010-2-07
Corrugated tube refers to a tubular elastic sensitive element connected by a foldable wrinkle sheet along the direction of folding and stretching. Bellows are widely used in instrumentation, the main purpose is as a pressure measuring instrument measuring element, the pressure into displacement or force. The corrugated pipe wall is thin, the sensitivity is high, and the measuring range is tens of Pa to tens of MPa.
Corrugated tube refers to a tubular elastic sensitive element connected by a foldable wrinkle sheet along the direction of folding and stretching. Bellows are widely used in instrumentation, the main purpose is as a pressure measuring instrument measuring element, the pressure into displacement or force. The corrugated pipe wall is thin, the sensitivity is high, and the measuring range is tens of Pa to tens of MPa.
The open end of the bellows is fixed, the sealing end is in a free state, and the auxiliary coil spring or reed is used to increase the elasticity. When working, it elongates along the length of the pipe under the action of internal pressure, so that the movable end produces a certain relationship with the pressure. The movable end drives the pointer to directly indicate the size of the pressure. The bellows is often combined with a displacement sensor to form a pressure sensor with an electrical output, and sometimes also used as an isolation element. Since the expansion of the bellows requires a large volume change, its response speed is lower than that of the Baudon tube. The bellows is suitable for measuring low pressures.
Corrugated pipes mainly include metal bellows, corrugated expansion joints, corrugated heat exchange tubes, diaphragm bellows and metal hoses. Metal bellows are mainly used to compensate for pipeline thermal deformation, shock absorption, absorption of pipeline settlement deformation and other functions, widely used in petrochemical, instrumentation, aerospace, chemical, electric power, cement, metallurgy and other industries. Bellows made of other materials such as plastics play an irreplaceable role in media transmission, power threading, machine tools, home appliances and other fields.
Bellows: A pressure measuring elastic element in pressure measuring instruments. It is a cylindrical thin-walled corrugated shell with multiple transverse corrugations. The bellows is elastic and can produce displacement under the action of pressure, axial force, transverse force or bending moment. Bellows are widely used in instrumentation, the main purpose is as a pressure measuring instrument measuring element, the pressure into displacement or force. The corrugated pipe wall is thin, the sensitivity is high, and the measuring range is tens of Pa to tens of MPa. In addition, the bellows can also be used as a sealing isolation element to separate the two media or prevent harmful fluids from entering the measuring part of the device. It can also be used as a compensation element, using its volume variability to compensate for the temperature error of the instrument. Sometimes it is also used as an elastic coupling joint of two parts. Bellows according to the material can be divided into metal bellows, non-metal bellows two; according to the structure can be divided into single layer and multilayer. Single layer corrugated pipe application more. Multi-layer bellows high strength, good durability, low stress, used in important measurements. The material of the bellows is generally bronze, brass, stainless steel, Monel alloy and Inconel alloy.
1. Name:
PTFE bellows, F4 bellows, PTFE bellows, Teflon bellows, Teflon bellows, Teflon bellows, Teflon bellows, Teflon bellows, Teflon bellows, Teflon bellows, Teflon bellows, Teflon bellows, plastic king bellows
2. Color:
Common color: Milky White tube
Not commonly used colors: yellow, brown, green, blue, red
3. Purpose
It can be used as tubular reactor and exchanger in special occasions.
Can be used as tank car, storage tank, container and reactor to, discharge pipe
Can be used to replace the mechanical strength of graphite, ceramics, glass and other pipes
Can be used for pipe misalignment connection or to balance pipe displacement, dimensional changes caused by climate or other reasons or to eliminate high-frequency mechanical vibration
4. Characteristics
Common features:
Use temperature:-200 degrees to 260 degrees
Easy processing: can flanging
High transparency: lowest refractive index of all plastics
Aging resistance: can be exposed to ozone and sunlight for a long time without aging
Corrosion resistance: Able to withstand all strong acids and strong oxidants except molten alkali metals, fluorinated media and those higher than 300 °,
The role of strong reducing agents and various organic solvents
Infrequently used features:
密度：2.16-2.20g/cm³
Volume resistance> 1 × 1018
Surface resistance> 2 × 1013
Arc resistance> 165 seconds no leakage
Low water absorption: water absorption <0.1%
Minimum coefficient of friction: minimum coefficient of friction
Surface non-stick: known solid material head can not adhere to the surface
Incombustible: the air will not burn, in line with the strict requirements of the fire place
Non-toxic: non-toxic and tasteless, with physiological inertia, no harm to people and the environment
5. Common specifications: outer diameter (unit: mm) Other specifications can be customized
Metric: outer diameter 6mm 8mm 10mm 16mm 20mm 25mm 38mm 60mm, etc.
Imperial: 1/8 inch 1/4 inch 3/8 inch
1/2 inch 3/4 inch 1 inch
Key words:- 波纹管
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