[Asia Pump Network News] seal is to solve the hydraulic system leakage problem is the most important and most effective part. Now to count the classification of the pump seal and the main role. Pump seals First, the nature of the classification of water pump seals According to the different materials used, the nature of the resulting different categories, 1. High temperature seals 2. High pressure resistant seals 3. Corrosion resistant seals 4. Abrasion resistant seals Circle II, the role of various types of seals V-ring is an axial elastic rubber seals used as a shaft without pressure seal. Sealing lip has better mobility and adaptability to compensate for the larger tolerances and angular deviation, to prevent leakage of internal grease or oil, but also to prevent outside splash or dust intrusion. O-ring is mainly used for static seal and reciprocating seal. For rotary motion seals, only low-speed rotary seals. V-type seals are generally installed on the outer circle or inner circle of rectangular cross-section of the groove from the sealing effect. Y-ring is widely used in reciprocating seals. In addition, there are spring tension (spring storage) ring, PTFE seal material is added in a spring, O-type spring, V-type spring, U-type spring. Hole with YX ring Product Use: Used for reciprocating hydraulic cylinder piston seal. Scope: TPU: general hydraulic cylinder, general equipment hydraulic cylinder. CPU: construction machinery hydraulic cylinder and high temperature, high pressure cylinder. Material: Polyurethane TPU, CPU, Rubber Hardness: HS85 ± 2 ° A Operating Temperature: TPU: -40 ~ +80 ℃ CPU: -40 ~ + 120 ℃ Working Pressure: ≤32Mpa Working Medium: Hydraulic Oil, Emulsion YX Punch ring Product use: This standard applies to the cylinder working pressure is greater than 16MPa when used with YX seals, or cylinder eccentric stress, the role of protective seals. Operating temperature: -40 ~ +100 ℃ Working medium: Hydraulic oil, emulsion, aquatic products Hardness: HS 92 ± 5A Material: Teflon shaft YX seals Application: For reciprocating hydraulic cylinder piston rod seal Scope: TPU: general hydraulic cylinder, universal Equipment hydraulic cylinder. CPU: construction machinery hydraulic cylinder and high temperature, high pressure cylinder. Material: Polyurethane TPU, CPU, rubber Hardness: HS85 ± 2 ° A Operating temperature: TPU: -40 ~ +80 ℃ CPU: -40 ~ +120 ℃ Working pressure: ≤32Mpa Working medium: YX type retaining ring Product use: This standard applies to the cylinder working pressure is greater than 16MPa when used with YX seals, or cylinder eccentric stress, the role of protective seals. Operating temperature: -40 ~ +100 ℃ Working medium: Hydraulic Oil, Emulsion, Aquatic Products Hardness: HS 92 ± 5A Material: Polytetrafluoroethylene According to: Enterprise Standard O-ring Application: This standard O-ring is suitable for hydraulic pneumatic systems and various mechanical equipment And components, at the specified pressure, temperature and different liquids and gases medium, in a stationary or moving state from the sealing effect. Working temperature: -40 ~ + 230 ℃ Working pressure: Working medium: Air, water, oil Product hardness: 40 ~ 85 ± 2A Material: nitrile rubber, silicone, fluorine rubber, EPR O-ring ring products Uses: This standard applies to cylinder pressure greater than 10MPa with O-ring use. Working temperature: -100 ~ 200 ℃ Working medium: hydraulic oil, emulsion, water Material: PTFE According to: JB / ZQ4224-86 Fit GB1235-76 J-type skeleton dust ring Product use: Motion cylinder, piston rod or cylinder exposed cylinder dust play a role. Scope of application: TPU: engineering machinery, general machinery, various types of valves and other cylinder. CPU: engineering machinery fuel tank, bad condition of the oil cylinder. Material: Polyurethane, nitrile rubber Operating temperature: -40 ~ 120 ℃ Product hardness: HS 80 ± 5A According to: JB / T6657-1993 Further reading: Pumps Valves Pipe Fittings Exhibition Water Expo Xiamen Maritime Exhibition Internet + Forum Yiwu Fair fitted die top ten brands 2016 Show Internet information industry (Xiamen) Technology Co., Ltd. author: Asian pumps network editor: Yao Xiaoxia (QQ / micro letter:) http://beng.liuti.cn/ (hotline: 400- 6030-811)
Elevator Display
Display Board
We are manufacturer of elevator display boards. We can provide you with a variety of elevator display boards. Including the following different styles:
1. No-display hall call board
2. Dot-matrix display board
3. Segment display board
4. True color display board
5. Picture display
6. Multimedia display
Below I will list the pictures and features of some popular styles for your reference.
Red dot-matrix display board for elevators
1. Dimensions: 130 mm x 72 mm x 5.7 mm
2. Ultra-thin design, energy-saving mode, shimmering breathing light for buttons, abundant functions, timesaving installation, and convenient use and maintenance.
3. High scanning frequency make the screen flash cannot be detected by human eyes, ensuring a high level of comfort.
4. No screen breaking risk and low maintenance cost.
5. Various floor settings, saving commissioning time.
6. Quick query of elevator faults, making on-site maintenance more convenient
7. Dustproof, moistureproof, smokeproof, corrosion-resistant, and strike-resistant, improving product's durability
8. Diverse interaction selection and 3-digit display
9. D6xx and R6xx series display boards:
Car addresses: 0 (encryption certification), D2, D3 or D4
Hall addresses: 1–56 or DH (for hall display)
4.3 inch segment LCD display
Features and advantages:
1. Operating ambient temperature: -10℃ to +40℃
2. Ultra-thin design, with a 38% reduction in thickness compared with U1 products
3. Dustproof, moistureproof, smokeproof, corrosion-resistant, strike-resistant, and antistatic
4. Equipped with LCD protection corners, reducing the risk of screen breaking
5. Support of 3-digit display, energy-saving mode, and shimmering breathing light for buttons
6. Abundant functions, time-saving installation, and convenient use and maintenance
7. U673 series display board:
Car addresses: 0 (encryption certification), D2, D3 or D4
Hall addresses:1–56 or DH (for hall display)
Hall addresses: 1–56 or DH (for hall display)
Elevator Display,Elevator Lcd Display,Elevator Display Screens,Elevator Display Panel
Suzhou Keffran Parts Co.,ltd , https://www.keffran-elevatorsmart.com