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The introduction of filled ptfe sliding support
Filled ptfe sliding support in petroleum, chemical, electrical, thermal, metallurgical and other industries the use of a large number of successful and fully verified, and won the positive affirmation and praise of users. Ptfe sliding support has the following features:
Low friction: ptfe sliding support of the friction surface is composed of ptfe and stainless steel plate, in which the skateboard adopts the embedded multiple small diameter ptfe sliding vane, on board for the high degree of finish of stainless steel plate. Ptfe sliding vane and stainless steel plate dry sliding friction coefficient between < 0.1. Pipe bearing friction slices in oil without oil and water without water, embedded with dust or mud sand mixed cases, all can ? at very low friction
High load: ptfe composite vane bearing strength > 60 mpa, at the same time modification of bearing friction material and the fragmentation of the Mosaic technology, realized the high bearing design, material so that the bearing capacity of the bearing 3350 kn, meet the needs of the market for large tonnage support.
Long life: in the friction material innovation and accidentally on the material match, on the basis of sexual selection of filled ptfe composite sandwich board embedded in the constraint condition of compression stress strain test, compression failure test and compression creep test, compression fatigue test, under the simulated condition of friction and wear test, established the bearing friction pair life for more than 25 years of design basis, to solve the key technology of bearing long life design.

Product overview of the filled ptfe sliding support
Sliding support device series products are widely used in electric power, metallurgy, petroleum, chemical industry, water conservancy, etc of piping or equipment are in need of displacement of stress.
Bearing device in addition to supporting weight, limit (or boot) displacement, vibration control (shake) movement, reduce the thrust, etc, and has simple structure, large bearing capacity, strong adaptability, durable, price is low wait for an advantage.
1.1 product features
Sliding support device of the friction pair with new compound ptfe sliding vane and mirror stainless steel materials, and steel friction pair, steel and teflon plate friction pair, compared to rolling friction pair of bearing, has the following features:
1.1.1 low coefficient of friction: dry sliding friction coefficient in 0.1 the following;
1.1.2 good self-lubrication, without oil or lubricant between friction pair, reduce maintenance workload;
1.1.3 adaptable: no matter in oil without oil and water without water, mixed with dust embedded or silt cases, all can work in a very low coefficient of friction, stable and reliable in performance.
1.1.4 wear resistance: under normal circumstances, the service life of 25 years.
Heat and cold insulation bearing adopts thermal insulation and cooling pad cushion layer, effectively solve the pipeline heat loss and loss of cooling capacity, so as to ensure the safe operation of the pipeline heat medium and cold media.
1.2 the applicable scope
1.2.1 bearing according to the pipeline arrangement is divided into horizontal pipe, vertical pipe and bend three categories;
1.2.2 bearing according to the operating temperature is divided into heat pipes, cold room temperature pipes and pipe three categories;
1.2.3 Dn25 ~ Dn4000mm bearing for pipe diameter and hot temperature 0 ℃ ~ 560 ℃, cold temperature 0 ℃ ~ 200 ℃, the axial displacement of 0 ~ 400 mm, the radial displacement of 0 ~ 200 mm, load range of 0 ~ 3350 kn.

The design of the filled ptfe sliding support selection
2.1 the design specifications
2.1.1 this series product is suitable for the transmission of all kinds of medium (steam, water, gas, oil, etc.) of the thermal displacement design of pipes, containers and equipment support.
2.1.2 sliding support product series is divided into three categories: the form of the pipeline horizontal sliding support pipe, elbow type pipe type sliding bearing, the riser sliding support. Horizontal pipe type sliding support according to pipe diameter and the load is divided into T (T), square type (F), saddle type (M type) three levels, each level according to the type of installation is divided into welding type (H) and the pipe clamp type (G) two kinds. Bend pipe sliding support according to pipe diameter and load can be divided into circular tube type (RP), elbow (RP), square tube type (RX) three levels. Riser type sliding support according to the load is divided into the riser pipe diameter and t type (LT), vertical tube type (LF) two levels. Each category set the axial sliding (Z), bidirectional (S), guided sliding (D), double slide guide (SD) four
Ⅱ type applies to 350 ℃ < t ℃ 425 ℃ or less. Should choose the appropriate material for quality carbon steel and low alloy steel.
Ⅲ type applies to 425 ℃ < t ℃ 566 ℃ or less. Should choose the appropriate materials for the alloy heat-resistant steel or stainless steel.
2.1.4 the product line displacement design is refers to the partial loading size. Design according to the axial displacement in four files (50 mm and 100 mm, 200 mm, 400 mm). According to the radial displacement of the design is divided into two files (100 mm, 200 mm).
Bearing height
The series of products according to the centerline of the pipe to the height of the bearing substrate under the underside as design level. According to the thermal insulation layer thickness are divided into three gears. If the pipe has no heat preservation, optional H1 tube center height, if there is a heat preservation, the temperature is below 400 ℃, optional H2 tube center height, the temperature at 400 ℃, 600 ℃, optional H3 tube center height. If a type riser pipe insulation, two optional support center distance H1, if there is a heat preservation, the temperature is below 400 ℃, the bearing center distance optional H2, the temperature at 400 ℃, 600 ℃, two optional H3 bearing center distance.
Because of the need when designing height H and general parameter table height is not consistent, please at the back of the model combined with the actual design level.